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2022-11-17         Arnold D. Robbins     <arnold@skeeve.com>

        * 5.2.1: Release tar ball made.

2022-11-17         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Update version.
        * README: Updated.

2022-11-01         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Updated.

2022-10-28         Arnold D. Robbins     <arnold@skeeve.com>

        * Makefile.am (DEBUG): New variable with debug compilation flags.
        * configure.ac: Rework debug compilation to use DEBUG in Makefile.am
        and to add %no-lines to grammar files. Works around GDB issue
        with macros and #line directives. Thanks to Ulrich Drepper
        for the help and for the suggestions.

2022-10-26         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Try to get macros to work in the debugger.

2022-10-25         Arnold D. Robbins     <arnold@skeeve.com>

        * interpret.h (r_interpret): For Op_push*, simplify the code for
        Node_var_new and Node_elem_new.

2022-10-23         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Updated.
        * debug.c (execute_code): Comment out declaration and assignment of
        save_stack_size variable. It's not used anymore.
        * configure.ac: Sync code for .developing with extension/configure.ac.

2022-10-23         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (mk_binary): Check that divisor is a number before
        checking it's zero. Thanks to Ben Hoyt <benhoyt@gmail.com> for
        the report.

2022-10-20  Paul Eggert  <eggert@cs.ucla.edu>

        Port to current Gnulib
        Adjust to current Gnulib, which uses C23 style keywords for bool,
        true, false and static_assert, and assumes that <config.h>
        supplies compatibility macros on older systems.

        * awk.h: Do not include stdbool.h.
        * configure.ac: Use gl_C_BOOL, not AC_HEADER_STDBOOL.

2022-10-20         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Updated.

2022-10-14         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        * awkgram.y: Use Node_var_new instead of Node_var_array for
        a subscript expression.
        * gawkapi.c (api_sym_update): Make things smarter for dealing
        with an untyped variable that needs to become an array.

2022-10-14         Arnold D. Robbins     <arnold@skeeve.com>

        * symbol.c (make_symbol): Save and restore symbol_table in
        the root_pointers struct instead of using lookup.
        (func_count, var_count): Removed the variables and their uses.
        (get_symbols): Getting functions, use the_table->table_size for
        the count, not func_count.

2022-10-11         Arnold D. Robbins     <arnold@skeeve.com>

        * symbol.c (get_symbols): Getting variables, use
        the_table->table_size for the count, not var_count. Bug
        was tickled when using --dump-var together with persistent
        memory. (Why didn't valgrind catch this?)  Thanks to Hermann
        Peifer for the report. Thanks to Terence Kelly for detective work
        that helped pinpoint the search area for the bug.

2022-09-30         Arnold D. Robbins     <arnold@skeeve.com>

        * interpret.h (r_interpret): For the `push' opcodes with
        Node_elem_new, deref `m' before assigning m = dupnode(Nnull_string).
        Thanks to Andrew Schorr and valgrind for the report.

2022-09-23         Arnold D. Robbins     <arnold@skeeve.com>

        * interpret.h (r_interpret): For the `push' opcodes with
        Node_elem_new, put dupnode(Nnull_string) on the stack as
        the local value. Thanks to Jeff Chua <jeff.chua.linux@gmail.com>
        for the report.

2022-09-22         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkbug.in: Add attestation about not modifying the sources
        before building.

2022-09-19         Arnold D. Robbins     <arnold@skeeve.com>

        Fix negative NaN issues on RiscV. See bug list citation
        in the code.  Thanks to Andreas Schwab <schwab@suse.de>
        for the report.

        * eval.c (fix_nan_sign): New function.
        * interpret.h (r_interpret): Use it for plus and minus cases.

2022-09-16         Arnold D. Robbins     <arnold@skeeve.com>

        * debug.c (do_eval): If a fatal error occurs, don't attempt to
        recover, just restart. Thanks to Pascal Maugis
        <pascal.maugis@lsce.ipsl.fr> for the report.

2022-09-14         Arnold D. Robbins     <arnold@skeeve.com>

        * interpret.h (r_interpret): For the `push' opcodes, don't upref
        the Node_elem_new. Instead, convert the very original value to
        Node_var and use elem_new_to_scalar for the local variable.
        See test case elemnew3.awk. Thanks to Pascal Terjan <pterjan@gmail.com>
        for the report and test case.

2022-09-14         Arnold D. Robbins     <arnold@skeeve.com>

        * interpret.h (r_interpret): For the `push' opcodes, upref
        the Node_elem_new. See test case elemnew1. Thanks to
        Emanuel Attila Czirai <corre.a.buscar@gmail.com> for the report,
        and to Jan Alexander Steffens (heftig)" <heftig@archlinux.org>
        for the fix.
        
2022-09-04         Arnold D. Robbins     <arnold@skeeve.com>

        * 5.2.0: Release tar ball made.

2022-09-04         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Updated with real URL of "MPFR is on parole."
        * configure.ac: Bump to release version.

2022-09-02         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.c, command.c: Regenerated, using Bison 3.8.2.

2022-08-25         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (yyerror): Exit at the end, to make syntax errors
        immediately fatal. This prevents problems with fuzzer-generated
        programs at the cost of not continuing to diagnose subsequent
        problems. Oh well, too bad. Hooray for the fuzzers. Bleah.
        * NEWS: Updated.

2022-08-17         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Mention that VAX/VMS is no longer supported.
        * main.c (deprecate_mpfr): Removed the function for now. It
        was causing grief for the translators.
        * builtin.c (call_sub): Fix message text for indirect call
        to gensub. Thanks to Benno Schulenberg
        <coordinator@translationproject.org> for the report.

2022-08-16         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Remove checks for memset_ulong and memcpy_ulong.
        * awk.h: Remove checks and macro definitions for those two
        functions. They used to be used in the PC code but were
        removed.

2022-08-14         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (mk_binary): Check for division by constant zero in
        `/' and `%' when numerator is not a constant. Thanks to Ed Morton
        <mortoneccc@comcast.net> for the report.

2022-08-12         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Small update: mention pm-gawk.1 man page.

2022-08-11         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (get_pma_version): Check strchr() return value for
        close parenthesis.  Ooops.

2022-08-10         Arnold D. Robbins     <arnold@skeeve.com>

        * symbol.c (init_the_tables): New function.
        (init_symbol_table): Rework to make functions persistent also
        by saving in the root pointer a struct pointing to both the
        global table and the function table, and restoring this
        on subsequent runs.  The code ended up being nicely cleaner.

2022-08-08         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h: Include "floatmagic.h" here so that we no longer have to
        worry about it on an indvidiual file basis.
        * builtin.c, eval.c, node.c: Remove the include in these files.
        * configure.ac: Check for isnan in libm also. This may not
        be the right way to do this...

2022-08-08  Eli Zaretskii  <eliz@gnu.org>

        * nonposix.h [__MINGW32__]: Add prototype for strsignal.

        * awk.h (flags): Rename BOOL => BOOLVAL, to avoid conflicts with
        MS-Windows headers.  All users changed.

2022-08-07         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (get_pma_version): New function.
        (version): Call it.

        Unrelated:

        * eval.c: Include "floatmagic.h" as it also calls isnan().
        Thanks to John Malmberg for the report.

        Unrelated:

        * main.c (load_environ): Force ENVIRON_node to point to
        str_array_func before loading it. Fixes issues on MinGW
        while still solving the original `environ[0] = "0=foo"'
        problem. Move the call to init_env_array back to after the
        loop.

2022-08-06         John E. Malmberg      <wb8tyw@qsl.net>

        * custom.h: Update for new VMS Versions

2022-08-03         Arnold D. Robbins     <arnold@skeeve.com>

        * mpfr.c (mpfr_mem_alloc, mpfr_mem_realloc, mpfr_mem_free):
        New functions that just call malloc/realloc/free. Those are
        redefined to the pma_* functions if using pma.
        * awk.h (mpfr_mem_alloc, mpfr_mem_realloc, mpfr_mem_free):
        Add declarations.
        * main.c (main): Call mp_set_memory_functions with the new
        functions as arguments.

2022-08-03         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (format_tree): When collecting positional field widths or
        precisions, check for wrap around to negative values. Thanks to
        YU Jiongchi <jcyu.2022@phdcs.smu.edu.sg> for the report.

2022-07-29         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (efwrite): Check ferror() also, fixes some weird
        cases. Reported by Nikita Zlobin <cook60020tmp@mail.ru>.
        * io.c (gawk_fwrite): Remove static from definition.
        * awk.h (gawk_fwrite): Add declaration.

2022-07-27         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.c (awk_value_to_node): Put tval declaration inside
        MPFR ifdef. Avoids warning if no MPFR when compiling.

2022-07-26         Arnold D. Robbins     <arnold@skeeve.com>

        * io.c (iopflags2str): Remove 'static' from declaration, causes
        the compiler to stop complaining. Thanks to Pat Rankin for the
        suggestion.
        * re.c (reflags2str): Ditto.
        * debug.c (debug_prog): Translate the "Restarting ..." message.
        Thanks to Antonio Colombo for pointing this out.

2022-07-22         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Updated.

2022-07-21         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Updated.

2022-07-19         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (catchsig): Adjust error message in cant_happen() call.
        * configure.ac: Add check for strsignal function. It doesn't
        exist on z/OS.
        * replace.c: Include missing_d/strsignal.c if needed.

2022-07-18         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (main): Don't use fatal() if pma_init() fails, apparently
        it tries deep down to allocate memory.  Print return value and
        pma_errno value. Thanks to Terence Kelly for the analysis and
        suggestion.
        * custom.h (pma_errno): Define to 0 if not using persisent malloc.

2022-07-17         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (parse_args): Handle --persist with no argument to issue a
        better error message. Thanks to Terence Kelly for the suggestion.

2022-07-14         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkmisc.c, replace.c: Update copyright.

2022-07-11         Arnold D. Robbins     <arnold@skeeve.com>

        * Makefile.am (base_sources): Remove mbsupport.h.

2022-07-07         Arnold D. Robbins     <arnold@skeeve.com>

        * mbsupport.h: Removed.

2022-07-06         Arnold D. Robbins     <arnold@skeeve.com>

        * README: Updated. Remove mention of DJGPP.
        * awk.h, custom.h, eval.c, gawkmisc.c, io.c, main.c, nonposix.h,
        re.c, replace.c: Remove all code for __DJGPP__.

2022-07-03         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (TOP_SCALAR): Put converted value back on the stack
        for any subsequent use.

2022-06-30         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (POP_SCALAR): Convert Node_elem_new into a scalar.
        (TOP_SCALAR): Ditto.

        Unrelated:
        * README: Updated. Remove mention of OS/2.
        * awk.h, awgram.y. gawkmisc.c, io.c, main.c, nonposix.h:
        Remove all code for __EMX__.

2022-06-20         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: MPFR is now "on parole" instead of deprecated.
        * main.c (deprecate_mpfr): ifdef'ed out.
        (parse_args): Comment out call to deprecate_mpfr().

2022-06-20         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (optab): Add --persist.
        (parse_args): For --persist, fatal message to use the
        environment variable. Thanks to Terence Kelly for suggesting
        the option, since it's mentioned in his paper.

2022-06-17         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Typo fix.
        * main.c (main): Correct the return value check in the call
        to pma_init(). Thanks to Terence Kelly for the report.

2022-06-15         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        * main.c (load_environ): Init ENVIRON_node before filling
        it. Fixes a crash if something like "0=foo" is the first thing
        in the environment. Thanks to David Arroyo <david@aqwari.net>
        for the report.

2022-06-14         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (main): Set gawk_name first thing, in case we fatal out
        on pma_init.
        * configure.ac: Add --disable-pma option.

2022-06-13         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (main): If persistent memory is not available and
        GAWK_PERSIST_FILE is supplied, issue a warnning. Similarly, don't
        do mtrace if using persistent malloc.
        (version): Include PMA version in the output.

2022-06-10         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (using_persistent_malloc): Declare new variable
        * main.c (main): Check for error from pma_init. Set
        using_persistent_malloc.
        * symbol.c (init_symbol_table): Check using_persistent_malloc
        appropriately. Adjust the flow for it.
        * NEWS: Updated.
        * Makefile.am (LDADD): Add $(LDFLAGS).
        * custom.h (pma_init): Define to 0.

2022-06-09         Arnold D. Robbins     <arnold@skeeve.com>

        * custom.h: Deal with use/non-use of persistent malloc.
        * main.c (main): Bracket mtrace call in #ifndef. Call pma_init()
        first thing.
        * configure.ac (GAWK_USE_PERSISTENT_MALLOC): Add call.

2022-06-06         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        * gawkapi.h (gawk_api_t): Add new api_destroy_array hook to clear
        and free an array.
        (destroy_array): New macro wrapper for api_destroy_array.
        * gawkapi.c (api_destroy_array): Add new function to clear and free
        an array.
        (api_impl): Add hook for api_destroy_array.

2022-06-03         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (elem_new_to_scalar): Add declaration.
        * eval.c (elem_new_to_scalar): No longer static. Make it handle
        things when valref is > 1. Returns a NODE * instead of being void.
        (cmp_scalars): Change usage of elem_new_to_scalar().
        * interpret.h (r_interpret): Op_push*: Make Node_elem_new into
        a separate case, using elem_new_to_scalar().
        * array.c (force_array): For Node_elem_new, clear symbol->stptr.
        * eval.r (r_get_lhs): Use efree() intstead of free() in Node_elem_new
        case.

2022-06-02         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_sub): Fix memory corruption when substituting
        into a value that is a typed regex. Thanks to valgrind.

2022-06-02         Arnold D. Robbins     <arnold@skeeve.com>

        Fix a nasty memory corruption problem. Thanks to
        Andrew Schorr for the report.

        * eval.c (r_get_lhs): Handle Node_elem_new separately
        to free the string value. This was not the problem.
        * interpret.h (r_interpret): For Op_assign, when turning
        Node_elem_new into the null string, DEREF the old value
        and dupnode the new one. THIS was the problem.

2022-05-24         Adam Van Scyoc        <avanscy@g.clemson.edu>

        * awkgram.y (make_assignable): Handle Op_field_assign.
        Avoids a core dump upon a certain kind of syntax error;
        see test/getlnfa.awk.

2022-05-22         Arnold D. Robbins     <arnold@skeeve.com>

        * array.c (force_array): When converting Node_elem_new to an array,
        release the string storage. Thanks to valgrind, by way of Andrew
        Schorr, for the report.

2022-05-11         Arnold D. Robbins     <arnold@skeeve.com>

        * profile.c (pp_list): Typo fix in a comment.

2022-05-10         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkbug.in: Add attestation for having read bug reporting
        section in the manual. (Yes, I'm pretty paranoid.)

2022-05-03         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (deprecate_mpfr): New function.
        (parse_args): Call it for -M.

2022-04-28         Arnold D. Robbins     <arnold@skeeve.com>

        Disallow SYMTAB["x"]["y"]. Reported by Jason C. Kwan.

        * interpret.h (r_interpret): Add checks at Op_sub_array case.

        Unrelated. Fix MPFR mode unary minus applied to a variable with
        a zero MPG value. Also reported by Jason C. Kwan.

        * mpfr.c (mpg_interpret): Fix Op_unary_minus to create an
        MPFR -0 value. MPG doesn't distinguish negative zero from
        positive zero.

2022-04-21         Arnold D. Robbins     <arnold@skeeve.com>

        Fix some profiling issues related to comments in switch / case
        statements.

        * awkgram.y (merge_comments): Remove newline between comments being
        merged.
        * profile.c (pprint): Improve code for Op_K_switch, Op_K_case.

2022-04-20         Arnold D. Robbins     <arnold@skeeve.com>

        * mpfr.c (mpg_force_number): Small whitespace fix.
        * node.c (r_force_number): Ditto.

2022-04-18         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkbug.in: Small changes.

2022-04-06         Arnold D. Robbins     <arnold@skeeve.com>

        Further cleanups.

        * array.c (new_array_element): Set s->stfmt to STFMT_UNUSED.
        * awk.h (force_string_fmt): No need to set s->stfmt anymore.
        * builtin.c (do_typeof): Collapse Node_var_new and Node_elem_new
        cases.
        * symbol.c (print_vars): Node_elem_new can't be in a top level
        variable. Remove check and add a call to cant_happen if some
        other node type is received.
        * NEWS: Updated.

2022-04-01         Arnold D. Robbins     <arnold@skeeve.com>

        Small fix from the persistent-gawk guys.

        * profile.c (pprint): Use estrdup instead of strdup.

2022-03-31         Arnold D. Robbins     <arnold@skeeve.com>

        * array.c (new_array_element): Make a full null string instead of
        an empty node; it can be more easily converted to scalar that way.
        * awk.h (force_string_fmt): Change the node type, remove NUMBER flag,
        set STFMT_UNUSED.
        * cint_array.c (lear_clear): Remove check for not equal Node_elem_new.
        * int_array.c (int_clear): Ditto.
        * str_array.c (str_clear): Ditto.
        * eval.c (elem_new_to_scalar): Now only needs to change the node type.
        * interpret.h (r_interpret): Treat Node_elem_new like Node_val, and
        UPREF it when pushed. Remove test before DEREFing when popping.
        * mpfr.c (mpg_force_number): Simplify converting Node_elem_new to
        Node_val. Fix the string value.
        * node.c (r_force_number): Ditto.

2022-03-28         Arnold D. Robbins     <arnold@skeeve.com>

        Allow unreferenced array elements to turn into subarrays.

        * awk.h (Node_elem_new): New node type.
        (new_array_element): Add declaration.
        (POP_ARRAY): Handle Node_elem_new.
        (force_string_fmt): Ditto. Make sure valref has the right value.
        * array.c (force_array): Handle Node_elem_new.
        (do_sort_up_value_type): Ditto.
        (new_array_element): New function, creates Node_elem_new node.
        * builtin.c (do_length): Handle Node_elem_new.
        (do_typeof): Ditto.
        * cint_array.c (leaf_lookup): Use new_array_element() when creating
        a new element.
        (left_clear): Don't unref Node_elem_new.
        * debug.c (print_symbol, do_set_var,watchpont_triggered,
        initialize_watch_item, print_memory, do_print_f): Handle Node_elem_new.
        * eval.c (nodetypes): Add Node_elem_new.
        (r_get_lhs, setup_frame): Handle Node_elem_new.
        (elem_new_to_scalar): New function.
        (cmp_scalars): Use elem_new_to_scalar.
        * ext.c (get_actual_argument): Handle Node_elem_new.
        * gawkapi.c (api_get_argument, api_set_argument, node_to_awk_value,
        api_sym_update): Handle Node_elem_new.
        * int_array.c (int_clear): Don't unref Node_elem_new.
        (int_insert): Use new_array_element() when creating a new element.
        * interpret.h (r_interpret): Handle Node_elem_new as appropriate.
        * mpfr.c (mpg_force_number): Handle Node_elem_new.Make sure valref has
        the right value.
        * node.c (r_force_number): Ditto.
        * str_array.c (str_lookup): Use new_array_element() when creating a
        new element.
        (str_clear): Don't unref Node_elem_new.
        * symbol.c (print_vars): Handle Node_elem_new.

2022-03-27         Arnold D. Robbins     <arnold@skeeve.com>

        Allow nested indirect function calls. Thanks to
        Kaz Kylheku <kaz@kylheku.com> for the report.

        * awkgram.y (at_seen): Turn into an int that is incremented
        and decremented as appropriate.

2022-03-22         Arnold D. Robbins     <arnold@skeeve.com>

        Make lint checks for builtin functions smarter. Initial
        report from Timothy Sample <samplet@ngyro.com>.

        * builtin.c (do_fflush): Require string type.
        (printf_common): Ditto.
        (do_index): Allow strnum for both arguments.
        (do_length): Ditto.
        (do_strftime): Ditto.
        (do_substr): Require numbers for arguments 2 and 3, string or
        strnum for argument 1.
        (do_match): Require string or strnum for argument 1.
        (do_dcgettext): Require strings for all arguments.
        (do_bindtextdomain): Ditto.
        (do_dcngettext): Require strings for arguments 5, 4, 2, and 1, and
        number for argument 3.

2022-03-03         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Updated.

2022-02-27         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (usage): Update the message for the gawkbug program.

2022-02-27         Arnold D. Robbins     <arnold@skeeve.com>

        Add `gawkbug' reporting program.

        * gawkbug.in: New file.
        * Makefile.am (bin_SCRIPTS): New, for  gawkbug.
        * configure.ac: Add gawkbug to AC_CONFIG_FILES list.
        * NEWS: Updated.
        * .gitignore: Updated.

2022-02-27         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (cant_happen): Change to allow a format string and arguments,
        in order to provide a clue as to what went wrong, and not just
        print "internal error".
        * awkgram.y, debug.c, eval.c, interpret.h, io.c, main.c, mpfr.c,
        profile.c, re.c, symbol.c: Fix all uses of cant_happen().

2022-02-25         Arnold D. Robbins     <arnold@skeeve.com>

        Memory issues with MPFR, fix part 2. (Part 1 is in the
        extension directory.)

        * gawkapi.c (awk_value_to_node): Clear the GMP/MPFR values
        returned from the C extension after setting the internal
        variable.
        
2022-02-22         Arnold D. Robbins     <arnold@skeeve.com>

        Enable interval expressions even for --traditional, as BWK
        awk has supported them since 2019.

        * NEWS: Updated.
        * main.c (main): Add lint warning for --re-interval.
        (parse_args): Add explanatory comment.
        * re.c (resetup): Update the comment w.r.t. interval expressions.
        Change the test for enabled them to if do_traditional.

2022-02-22         Arnold D. Robbins     <arnold@skeeve.com>

        Fix resource leaks found by Coverity. Thanks to
        Jakub Martisko <jamartis@redhat.com> for the report.

        * ext.c (make_builtin): Free install_name before returning.
        * io.c (remap_std_file): Unconditionally close newfd.
        * symbol.c (load_symbols): Unref built_in also.

2022-12-10         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        * io.c (wait_any): When saving a saved exit status returned by
        _cwait or waitpid or wait in struct redirect's status field, we
        should actually save the value returned by sanitize_exit_status
        instead of the raw status. This fixes a bug whereby a saved status
        for a previously exited process was being returned by gawk_pclose
        without first being sanitized. Thanks to Jakub Martisko
        <jamartis@redhat.com> for reporting the bug.

2022-02-10         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (sanitize_exit_status): Fix formatting.

2022-02-07         Arnold D. Robbins     <arnold@skeeve.com>

        Continue fixing indirect calls of builtins.

        * awk.h (check_exact_args, check_args_min_max): Add declarations.
        * builtin.c (check_exact_args, check_args_min_max): New functions.
        (do_exp, do_fflush, do_index, do_int, do_isarray, do_length, do_log,
        do_sqrt, do_strftime, do_systime, do_mktime, do_system, do_tolower,
        do_toupper, do_atan2, do_sin, do_cos, do_rand, do_srand, do_match,
        do_sub, do_lshift, do_rshift, do_compl, do_strtonum, do_dcgettext,
        do_dcngettext, do_bindtextdomain, do_intdiv, do_typeof): Call
        the argument checking functions.
        (call_sub, call_match): Manually check argument count.
        * field.c (do_split, do_patsplit): Call the argument checking
        functions.
        * interpret.h (r_interpret): For indirect call of extension functions,
        pop the function name off the stack when done.
        * mpfr.c (do_atan2, do_mpfr_func, do_mpfr_int, do_mpfr_compl,
        do_mpfr_lshift, do_mpfr_rshift, do_mpfr_strtonum, do_mpfr_rand,
        do_mpfr_srand, do_mpfr_intdiv): Call the argument checking functions.

2022-02-04         Arnold D. Robbins     <arnold@skeeve.com>

        Start fixing issues with indirect calls of builtins.
        Thanks to Denis Shirokov <cosmogen@gmail.com> for the initial report.
        Much more remains to be done.

        * builtin.c (do_length): Check number of arguments, fatal if not one.
        If passed Node_var_new, turn it into the null string.
        * interpret.h (r_interpret): For Op_indirect_call, pop the function
        name off the stack.

2022-01-05         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (change_namespace): New function. Extracted from
        set_namespace.
        (want_namespace): New variable.
        [grammar]: Add explanatory comment about the change.
        (yylex): Change the namespace immediately from the lexer.
        (set_namespace): Adjust code.
        * symbol.c (load_symbols): Strip off leading awk:: so that
        PROCINFO["identifiers"] is like SYMTAB and FUNCTAB. This makes
        the code match the documentation. Thanks to John Naman
        <gawker@703n.com> for the bug report.

2021-12-17         Yuri Gribov           <tetra2005@gmail.com>

        Make a number of functions and variables static.

        * cint_array.c (argv_array_func): Make static.
        * debug.c (cur_rule, check_until): Ditto.
        * field.c (default_FS, FS_re_yes_case, FS_re_no_case, FS_regexp,
        FPAT_re_yes_case, FPAT_re_no_case, invalidate_field0: Ditto.
        * io.c (iopflags2str): Ditto.
        * main.c (ENVIRON_node): Ditto.
        * re.c (reflags2str): Ditto.
        * str_array.c (env_array_func): Ditto.

2021-12-08         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        * gawkapi.c (api_sym_update): Allow undefined Node_var_new variables
        to be converted to arrays, otherwise API functions have no way
        of creating an array that is referenced in an undefined fashion in
        the program. This is somewhat comparable to how the set_argument
        API allows an undefined argument variable to be converted to an array.

2021-12-02         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        * builtin.c (efwrite): Don't use return in call of function
        returning void. Some compilers might not like it.

2021-12-01         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (efflush): Don't use return in call of function
        returning void. It works, but is funky, and I think some
        compilers will complain.

        Unrelated. Clean up the calls to w32_maybe_set_errno.

        * awk.h (os_maybe_set_errno): Add declaration.
        * builtin.c (wrerror): Replaced ifdef'ed code calling
        w32_maybe_set_errno() with simple call to os_maybe_set_errno().
        * io.c (non_fatal_flush_std_file, close_io): Ditto.
        * main.c (usage, copyleft): Ditto.
        * nonposix.h (w32_maybe_set_errno): Remove declaration.

2021-11-30         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        Improve output redirection error handling for problems not detected
        until the final flush or close. Thanks to Miguel Pineiro Jr.
        <mpj@pineiro.cc> for the bug report and suggesting a fix.

        * awk.h (efflush): Add declaration.
        * builtin.c (efwrite): Break up into 3 functions by moving the
        flushing logic into efflush and the error handling logic into
        wrerror.
        (wrerror): New function containing the error-handling logic extracted
        from efwrite.
        (efflush): New function containing the fflush logic extracted from
        efwrite.
        * io.c (close_redir): Call efflush prior to closing the redirection
        to identify any problems with flushing output and to take advantage
        of the error-handling logic used for print and printf.

2021-11-21         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_typeof): Make Node_array_ref handling smarter.
        See test/stupid5.awk.

2021-11-18         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.c (awk_value_to_node): Fix handling of MPFR values
        coming back from an extension.

2021-11-07         Arnold D. Robbins     <arnold@skeeve.com>

        * mkinstalldirs: Removed, it wasn't used.
        * Makefile.in: Regenerated.

2021-11-03         Sam James             <sam@gentoo.org>

        * configure.ac: Fix AR_FLAGS assignment typo.
        * configure.ac: Rename AR_FLAGS to ARFLAGS.

2021-10-27         Arnold D. Robbins     <arnold@skeeve.com>

        * 5.1.1: Release tar ball made.

2021-10-24         Arnold D. Robbins     <arnold@skeeve.com>

        * README: Updated.

2021-10-20         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        * msg.c (err): Need to check that FNR_node->var_value is non-NULL
        before testing with is_mpg_number.

2021-10-18         Arnold D. Robbins     <arnold@skeeve.com>

        Factor duplicated code out into a separate function.
        D.R.Y. principle.

        * symbol.c (get_name_from_awk_ns): New function.
        (lookup): Use it.
        (install): Use it.

        * awkgram.y (check_qualified_special): Use awk_namespace instead of a
        string constant.
        * profile.c (pprint): Ditto.
        (adjust_namespace): Ditto. Also, fix the check for the qualified
        name to look for the "::" in case one namespace is a prefix of
        another.

2021-10-13         Arnold D. Robbins     <arnold@skeeve.com>

        * README: Update version, copyright year.
        * custom.h: Update copyright year.

2021-09-26         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_mktime): Update that ISO 8601 does not allow
        hours > 23. Thanks to Nethox <nethox+awk@gmail.com> for the info.

2021-09-23         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.h: Some clean-up of comments in the header file.

2021-09-12         Arnold D. Robbins     <arnold@skeeve.com>

        * interpret.h: Remove subscript_in_array variable.

        Unrelated:

        * builtin.c (add_thousands): Fix insertion of thousands_sep
        string. Do it in reverse order.

2021-09-10         Arnold D. Robbins     <arnold@skeeve.com>

        * interpret.h: For Op_subscript, don't allow references into
        FUNCTAB and SYMTAB to create new elements.  Thanks to
        Jason C. Kwan <jasonckwan@yahoo.com> for the bug report.

        Unrelated:

        * aclocal.m4: Regenerated: Automake 1.16.4.
        * NEWS: Updated.

        Unrelated:

        * awkgram.y (YYERROR_IS_DECLARED): Added for Bison 3.8.
        * command.y (YYERROR_IS_DECLARED): Ditto.
        * NEWS: Updated.

2021-09-09         Arnold D. Robbins     <arnold@skeeve.com>

        Move to Autoconf 2.71 (finally!)

        * configure.ac: Updated.
        * aclocal.m4, configh.in configure: Regenerated.
        * NEWS: Updated.

2021-09-06         Arnold D. Robbins     <arnold@skeeve.com>

        Have the ' flag work for %d in MPFR mode also. Thanks to
        Dan Nielsen <catskill549@yahoo.com> for the report.

        * builtin.c (add_thousands):  New function.
        (reverse): New helper function.
        (format_tree): Use add_thousands if MPFR and an integer
        format.

2021-09-03         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (UPDATE_YEAR): Update to 2021.

2021-09-03         Arnold D. Robbins     <arnold@skeeve.com>

        * mpfr.c (mpg_cmp_as_numbers): Avoid compiler warning about possibly
        used before set.  Thanks to Michal Jaegermann for the report.

2021-08-18         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (main): Change have_srcfile from int to bool.

2021-08-15         Arnold D. Robbins     <arnold@skeeve.com>

        Allow setting AR and ARFLAGS on the configure command line.
        Thanks to Jacob Burkholder <jake.burkholder2@gmail.com> for
        the report.

        * configure.ac (AR_FLAGS): Provide default value.
        (AR): Call AC_SUBST on it.

2021-08-13         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_sub): Rationalize handling of strongly typed
        regex as argument to sub/gsub, as well as rationalize the return
        value from gensub to always be string. Thanks to John Naman
        <gawker@703n.com> for the bug report.

2021-08-05         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        * mpfr.c (do_mpfr_func): New argument, warn_negative. If true,
        print a warning message about a negative argument. Bring -M
        code into line with regular code. Bug report from Neil Ormos
        in the help-gawk list.

        Unrelated:

        * mpfr.c (do_mpfr_int_div, mpg_div, mpg_mod): If dividing by
        zero, print a fatal error messages. Brings MPFR code into line
        with the regular code. Thanks to Peng Yu for noticing the bug, in
        the help-gawk list.

2021-07-23         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (exec_count_t): Add typedef for Vax VMS C and everyone else.
        (EXEC_COUNT_FMT, EXEC_COUNT_PROFILE_FMT): Corresponding format
        strings for printf.
        * debug.c (print_instruction): Use EXEC_COUNT_FMT.
        * profile.c (indent): Ditto and use EXEC_COUNT_PROFILE_FMT.

2021-07-07         Arnold D. Robbins     <arnold@skeeve.com>

        * array.c (asort_actual): Add a lint warning for passing the
        same array as the first two arguments without a third.
        Thanks to Peng Yu <pengyu.ut@gmail.com> for the report.

2021-06-30         Arnold D. Robbins     <arnold@skeeve.com>

        * custom.h: Add a bunch of defines to work around the continous,
        needless churn in support/dfa.c.

2021-06-04         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (format_tree): In MPFR prints, cast values to
        int for proper int vs. unsigned comparison. Fixes things
        for HP-UX. Thanks to Daniel Richard G. for the report.

2021-05-21         Arnold D. Robbins     <arnold@skeeve.com>

        * debug.c: For z/OS, use %#p to print pointers, %p everything else.

2021-05-13         Arnold D. Robbins     <arnold@skeeve.com>

        * custom.h: For z/OS, define _REGEX_INCLUDE_LIMITS_H.
        * profile.c (pprint): Add a diagnostic print for an
        unexprected node type.

2021-05-05         Arnold D. Robbins     <arnold@skeeve.com>

        * CMakeLists.txt: Removed.
        * cmake: Removed directory and its contents.

2021-05-05         Arnold D. Robbins     <arnold@skeeve.com>

        Move to Automake 1.16.3.

        * configure.ac (AM_INIT_AUTOMAKE): Add subdir-objects option.
        * NEWS: Updated.

        Get `make distcheck' working again:

        * Makefile.am (EXTRA_DIST): Remove files that are now in build-aux.

        Unrelated:

        * builtin.c (do_sub): Remove check for BOOL as target. It's not
        correct anymore.

2021-05-03         Arnold D. Robbins     <arnold@skeeve.com>

        * eval.c (flags2str): Move BOOL entry into the right place in the
        list.
        * NEWS: Update with info on mkbool.

2021-05-02         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (do_bool): Renamed do_mkbool.
        * awkgram.y (tokentab): Rename bool to mkbool.
        * builtin.c (do_bool): Renamed do_mkbool.

2021-04-30         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (boolval): Remove check for BOOL flag. It was incorrect.
        Thanks to Andrew Schorr for the catch.
        For Node_val, update the comment to describe the BOOL flag, and
        move BOOL up to be alongside the flags for Node_val.

2021-04-28         Arnold D. Robbins     <arnold@skeeve.com>

        Make bools plain numbers that have bool flag instead of
        being weird string values.

        * array.c (do_sort_up_value_type): Remove special ordering
        for booleans.
        * awk.h (warn_bool): Remove declaration.
        * builtin.c (warn_bool): Remove function and all calls.
        * gawkapi.c (node_to_awk_value): Update switches to look for
        NUMBER|BOOL.
        * node.c (make_bool_node): Revise string values and flag bits.

2021-04-16         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (arg_assign): For -v '@/...' make sure that there are
        at least three characters there. Thanks to Ed Morton
        <mortoneccc@comcast.net> for the report.

2021-04-14         Arnold D. Robbins     <arnold@skeeve.com>

        Fix up lint warnings for "no effect" to avoid false warnings.
        Straighten out the messages, and remove the run-time warning,
        since a parse-time warning is already issued. Thanks to
        Arkadiusz Drabczyk <arkadiusz@drabczyk.org> for the initial
        bug report.

        * awkgram.y (isnoeffect): Add more opcodes that are "no effect".
        (add_lint): For LINT_no_effect, check that all the opcodes in the
        list are "no effect". Only if so, issue the warning. Remove the
        addition of the run-time warning.
        * interpret.h (r_interpret): Remove LINT_no_effect from Op_lint
        case.

2021-04-14         Arnold D. Robbins     <arnold@skeeve.com>

        * array.c (do_sort_up_value_type): Fix order with bools.

2021-03-30         Arnold D. Robbins     <arnold@skeeve.com>

        * gawk_api.h (gawk_api_minor_version): Increase to 2.
        * gawk_api.c (assign_bool): New function.
        (node_to_awk_value): Finish updating for bool types and values.

2021-03-22         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.h (make_bool): New inline function.
        Update table of request/return types.
        * gawkapi.c (awk_value_to_node): Add support for AWK_BOOL.
        (node_to_awk_value): Start on same. Not yet complete.

2021-03-21         Arnold D. Robbins     <arnold@skeeve.com>

        * str_array.c (fnv1a_hash_string): New function.
        (str_array_init): Use fnv1a_hash_string if AWK_HASH env var
        set to "fnv1a".

2021-03-20         Arnold D. Robbins     <arnold@skeeve.com>

        * array.c (do_sort_up_value_type): Add logic for handling bools.

2021-03-08         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (warn_bool, do_bool): Add function declarations.
        * awkgram.y (tokentab): Add entry for "bool" builtin.
        * builtin.c (warn_bool): New function.
        (do_index, do_substr, do_toupper, do_tolower, do_match,
        do_length): Call it.
        (do_sub): If first arg to sub/gsub is bool, fatal error.
        (do_bool): New function.
        * field.c (do_split, do_patsplit): Call warn_bool.
        * main.c (load_procinfo_bools): Removed function and call.

2021-03-05         Arnold D. Robbins     <arnold@skeeve.com>

        Start on a bool type for gawk.

        * awk.h (BOOL): New flag value.
        (make_bool_node): Add declaration of new function.
        (bool_val): Check for BOOL along with NUMBER.
        * builtin.c (do_typeof): Add support for BOOL.
        * eval.c (flags2str): Ditto.
        * gawkapi.h (awk_val_type): Add AWK_BOOL.
        (awk_value_t): Add awk_bool_t element to the union and macro for it.
        (struct gawk_api): Update the table of request/return values.
        * main.c (load_procinfo_bools): New function.
        (load_procinfo): Call it.
        * node.c (make_bool_node): New function.

2021-02-13         Arnold D. Robbins     <arnold@skeeve.com>

        * io.c (nextfile): Use the value of ARGC directly in the for
        loop, in case it gets changed by code or by a command line
        assignment. Thanks to the discussion in comp.lang.awk for
        the report.

2021-01-28         Arnold D. Robbins     <arnold@skeeve.com>

        Fix a Day One Bug!

        * main.c (main): For -b option, only set LC_ALL to C if
        not --posix. Ooops.

2021-01-09         Arnold D. Robbins     <arnold@skeeve.com>

        Fix problems turning something like 018 into decimal.
        Thanks to Arkadiusz Drabczyk <arkadiusz@drabczyk.org> and to
        Jean-Philippe Guérard <jean-philippe.guerard@xn--tigreray-i1a.org>
        for the reports.

        * builtin.c (nondec2awknum): Use a copy of len, in case we detect
        8 or 9 and have to restart as decimal.
        * mpfr.c (mpg_strtoui): For 8 or 9, set base to 10.

        Unrelated:
        * array.c, awk.h, awkgram., builtin.c, cmd.h, command.y, debug.c,
        eval.c, gawk.api.c, gawkapi.h, interpret.h, io.c, main.c, mfpr.c,
        node.c, profile.c, re.c: Update copyright year.

2021-01-08         Arnold D. Robbins     <arnold@skeeve.com>

        General tightening up use of const and types. Thanks to
        the C++ porting experiment.

        * array.c (null_array): Separate out multiple assignment of zero.
        * awk.h: Add <math.h> here and pull it out of individual files.
        (CONVFMT): Make const char *.
        (quote): Make const char *.
        (defpath): Make const char *.
        (deflibpath): Make const char *.
        (envsep): Make const char *.
        (DO_FLAG_NONE): New zero enum value.
        (getblock): Add a cast to the ty argument.
        (make_regnode): First argument is now NODETYPE.
        (gawk_name): Returns const char *.
        * awkgram.y: Include argument types in read_func pointer.
        (make_regnode): First argument is now NODETYPE.
        * builtin.c (do_typeof): Use const char *.
        (format_nan_inf): Move declaration of val to top of function.
        * cmd.h (dbg_prompt, commands_prompt, eval_prompt, dgawk_prompt):
        Make const char *.
        (struct cmd_token): Use const char *. Rename `class' to `lex_class'.
        * command.y (lex_class): Update all uses.
        (find_command): Use const char *.
        * debug.c (dbg_prompt, commands_prompt, eval_prompt, dgawk_prompt,
        output_file): Make const char *.
        (struct dbg_option): Use const char *.
        (do_info): Use const char *. Cast stop.command to enum argtype.
        (do_finish): Cast stop.command to enum argtype.
        (do_return, do_until): Ditto.
        (print_instruction, set_gawk_output, set_prompt): Add casts to
        some function parameters.
        * eval.c (update_ERRNO_int): Use const char *.
        * gawk.api.c (valtype2str): Return const char *.
        (api_get_argument): Use awk_true instead of true in return statements.
        (awk_value_to_node): Move declaration of tval to top of function.
        (api_release): Cast a_cookie to NODE *.
        * gawkapi.h (struct awk_input): Include argument types in
        read_func pointer.
        * interpret.h (r_interpret): Add cast to argument in call to
        do_getline_redir.
        * io.c (read_with_timeout): Change second param to void * from char *.
        (redirect_string): Add casts to function call parameters.
        (path_info): Use const char *.
        (init_awkpath): Ditto.
        * main.c (CONVFMT, locale_dir): Now const char *.
        (do_flags): Init to DO_FLAG_NONE instead of zero.
        * mfpr.c (get_rnd_mode): Add cast to return value.
        (set_round_mode): Add cast to assignment of rndm.
        (do_mpfr_func): Include argument types in type of second parameter.
        * node.c (r_make_number): Remove declaration of strtod.
        * profile.c (pp_push): Add cast in assignment to n->type. Use
        const char * for `pre' at Op_func_call.
        * re.c (check_bracket_exp): Add cast to return from memchr.

2021-01-07         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (format_tree): Generalize handling of invalid
        format modifiers. Add support for three more letters. Thanks to
        Arkadiusz Drabczyk <arkadiusz@drabczyk.org> for the report.

        Unrelated:

        * io.c (rsnullscan): Adjust loop test to get to end of string
        when re match is null string. Thanks to Ed Morton
        <mortoneccc@comcast.net> for the report.

2020-12-26         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Updated.

2020-12-20         Arnold D. Robbins     <arnold@skeeve.com>

        Second steps fixing +inform, +nancy, for MPFR.

        * builtin.c (format_nan_inf): Use mpfr_signbit instead of mpfr_sgn.
        * mpfr.c (force_mpnum): Check for NaN and leading minus and if so
        set the signbit with mpfr_setsign.
        (mpg_force_number): Copy in code from f_force_number to check
        properly for +inf, +nan.

2020-12-19         Arnold D. Robbins     <arnold@skeeve.com>

        First steps fixing +inform, +nancy. Sigh.

        * awk.h (is_ieee_magic_val): Add declaration.
        * node.c (is_ieee_magic_val): Make extern, not static.
        (r_force_number): Make the check smarter, catch -nan.

2020-11-02         Arnold D. Robbins     <arnold@skeeve.com>

        Make gawk numeric comparisons act like C doubles.
        MPFR differs from doubles w.r.t. NaN, not sure why yet.

        * awk.h (scalar_cmp_t): New enum.
        * builtin.c (format_nan_inf): Use mpfr_signbit, not mpfr_sgn.
        * eval.c (cmp_doubles): New routine.
        (cmp_scalars): Change type to bool, rework logic.
        * interpret.h (r_interpret): Rework scalar comparisons.
        * mpfr.c (mpg_cmp_as_numbers): New routine.
        * node.c: Use <math.h>, not "math.h", minor comment edits.

2020-11-02         Arnold D. Robbins     <arnold@skeeve.com>

        * re.c (make_regexp): Cast len parameter to int to avoid
        compiler warnings.

2020-10-31         Arnold D. Robbins     <arnold@skeeve.com>

        * re.c (make_regexp): When re_compile_pattern fails, use the
        original text of the regexp in the error message. Thanks to Neil
        R. Ormos <ormos-gnulists17@ormos.org> for the report.

2020-10-29         Arnold D. Robbins     <arnold@skeeve.com>

        * eval.c (setup_frame): Handle the case of values from FUNCTAB.
        Thanks to Denis Shirokov <cosmogen@gmail.com> for the report.

2020-10-12         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.c (api_lintwarn): Fix comparison, should be to check
        lintfunc, not lintwarn. Thanks to OLLIER Jean-François
        <lalanne.51@wanadoo.fr>, reported 23 March, 2014.

2020-10-11         Arnold D. Robbins     <arnold@skeeve.com>

        * re.c (make_regexp): Add {} to characters that cause rp->maybe_long
        to be true.
        * io.c (rsrescan): Update comment for step 4.

2020-09-21         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (enum redirect_flags): Add RED_NONE.
        (redirect_flags_t): New typedef.
        * io.c (redflags2str): Handle RED_NONE.
        (check_duplicated_redirections): New function.
        (redirect_string): Use new typedef. Call new function if do_lint
        instead of using inline code.
        (close_redir): Add error message for failure on close of two-way pipe.

2020-09-04         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y [GRAMMAR]: Install arrays as Node_var_array. Improves
        PROCINFO["identifiers"]. Thanks to anoncoward@nym.hush.com
        for the report.

2020-08-25         Arnold D. Robbins     <arnold@skeeve.com>

        * interpret.h (r_interpret): At Op_rule, check if in BEGINFILE. If so,
        clear the record.  Fixes an issue reported by Pat Rankin in May, 2011.

2020-08-24         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y, builtin.c, command.y, debug.c, gawkapi.c,
        io.c, node.c: Make all messages consistent: Remove final periods
        from messages that had them.
        * TODO: Updated.

2020-08-20         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (NODE): Move valref completely out of the union. Fixes
        core dumps on old GCC on CentOS 7.

2020-08-13         Arnold D. Robbins     <arnold@skeeve.com>

        Fix TIDYMEM / use of mtrace.

        * configure.ac: Add mtrace to list of functions searched for.
        * symbol.c (make_symbol): Set valref to 1. Allows the
        release_all_vars function to work.

        Unrelated:

        * array.c (value_info): Spell ROUNDMODE correctly in output.
        * mpfr.c (set_ROUNDMODE): Ditto.

2020-08-12         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.c, command.c: Regenerated with Bison 3.7.1.
        * NEWS: Updated.

        Unrelated:

        * profile.c (pp_namespace): Always print a newline before the
        @namespace, in case it comes after a comment. Thanks to J Naman
        for the report.
        * symbol.c (comp_symbol): Adjust comparison so that names in the
        awk namespace come out first. Makes the order of functions in
        pretty-printed output more sane. Thanks also to J Naman for
        getting me to explore this issue.

2020-07-29         Arnold D. Robbins     <arnold@skeeve.com>

        * custom.h (FLEXIBLE_ARRAY_MEMBER): Define to 1 for dfa.h.

2020-07-28         Arnold D. Robbins     <arnold@skeeve.com>

        Eliminate 'iszero: redefined' warning from tcc.

        * awk.h (is_zero): Renamed from `iszero'.
        (boolval): Update usage.
        * awkgram.y [GRAMMAR]: Ditto.
        (negate_num): Ditto.
        * debug.c (condition_triggered): Ditto.
        * eval.c (set_LINT): Ditto.

2020-07-26         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.c, command.c: Regenerated with Bison 3.7.
        * NEWS: Updated.

        Unrelated:

        * gawkapi.h (api_get_mpfr, api_get_mpz): Mark as obsolete.

2020-07-22         Arnold D. Robbins     <arnold@skeeve.com>

        * Makefile.in: Regenerated.

2020-07-21         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac (AM_INIT_AUTOMAKE): Update to 1.16.
        * ar-lib, compile, config.guess, config.rpath, config.sub,
        depcomp, install-sh, missing, ylwrap: Moved to build-aux.

2020-07-20  gettextize  <bug-gnu-gettext@gnu.org>

        * configure.ac (AM_GNU_GETTEXT_VERSION): Bump to 0.20.2.

2020-07-19         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Fix title on leading set of changes. Thanks to
        Marcus <marcuscruse@ya.ru> for the report.

        Unrelated: Bump minor API version since semantics have changed.

        * gawkapi.h (api_minor_version): Increase to 1.

        Unrelated: Fix a spelling error in a comment.

        * mpfr.c (force_mpnum): Fix a typo.

2020-07-17         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.h (gawk_api_minor_version): Increase, since the
        MPFR/MPZ stuff changed some.  Remains source and binary
        compatible, but semantics are different.

2020-07-15         Arnold D. Robbins     <arnold@skeeve.com>

        Finish cleaning up MPFR valgrind issues.

        * awk.h (struct block_header): Remove MPFR and GMP enums.
        * gawkapi.c (getmpfr, freempfr, getmpz, freempz): Removed
        (api_get_mpfr): Use emalloc instead of getmpfr.
        (api_get_mpz): Use emalloc instead of getmpz.
        * gawkapi.h: Add comments on MPFR and MPZ
        (make_number_mpfr, make_number_mpz): Update comments.
        * node.c (nextfree): Remove mpfr and mpz entries.
        * NEWS: Updated.

        Unrelated:

        * config.guess, config.sub: Updated from GNULIB.

2020-07-13         Arnold D. Robbins     <arnold@skeeve.com>

        * mpfr.c (mpg_interpret): Small speedup. If do_itrace and opcode is
        not one that's handled, return early.

2020-07-12         Arnold D. Robbins     <arnold@skeeve.com>

        * mpfr.c (mpg_interpret): Make the instruction tracing more sane.

        Fix the testext test for MPFR.

        * gawkapi.c (awk_value_to_node): Use correct code to copy
        MPFR/MPN numbers and don't free the original values.
        * interpret.h (r_interpret): At Op_ext_builtin, separate out calls
        to the external function and awk_value_to_node, for ease in a
        debugger.
        * NEWS: Updated.

2020-07-10         Arnold D. Robbins     <arnold@skeeve.com>
        
        Fix printf issues. Thanks to Michal Jaegermann for the report.

        * cint_array.c (cint_dump): Fix printf formats.
        * debug.c (print_symbol): Ditto.
        * mpfr.c (mpg_interpret): Ditto.

2020-07-09         Arnold D. Robbins     <arnold@skeeve.com>

        Fix dbugeval2 test for MPFR.

        * debug.c (do_eval): Preserve DO_MPFR flag in do_flags before
        parsing the string to be evaluated.

        Fix indirect call tests for MPFR:

        * awkgram.y (lookup_builtin): Only return the MPFR builtin
        function if the pointer is not NULL.

        Unrelated:

        * config.guess, config.sub: Updated from GNULIB.

2020-07-08         Arnold D. Robbins     <arnold@skeeve.com>

        * str_array.c (str_lookup): If a pure number, copy to a string. Fixes
        the printfchar test for MPFR.

        Fix typedregex2 and typedregex3 tests for MPFR:

        * mpfr.c (mpg_zero): No longer static inline.
        (force_mpnum): Handle the case of a strongly typed regex.
        (mpg_interpret): Add tracing for do_itrace.
        * awk.h (mpg_zero): Add declaration.
        * node.c (make_typed_regex): Init to zero for MPFR via mpg_zero.

2020-07-07         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h: Turn all the flag defines into enums. GDB can then show
        the bit maps directly.

        Unrelated: Fix another MPFR bug, reported by Hyunho Cho
        <mug896@naver.com>.

        * mpfr.c (force_mpnum): Restore the character at the end of
        the string if only saw + or -.

2020-07-07         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        * node.c (r_dupnode): Sanitize the code, particularly for MPFR.

2020-07-05         Arnold D. Robbins     <arnold@skeeve.com>

        Bug fixes in MPFR, reported by Hyunho Cho<mug896@naver.com>.

        * node.c (r_dupnode): Set strndmode and also set stlen of new
        string. (How did that one get by us for so long?)
        * mpfr.c (force_mpnum): Check for a + or - sign with nothing following it.

        Unrelated. Make do_itrace a real variable so that it's easier to
        change the value from a debugger.

        * awk.h (do_itrace): Declare.
        (DO_ITRACE, do_itrace): Remove macros.
        * main.c (do_itrace): Define.
        (parse_args): Set do_itrace.

2020-07-03         Arnold D. Robbins     <arnold@skeeve.com>

        Fix a double free error with -M.  Thanks to
        "NIDE, Naoyuki" <nide@ics.nara-wu.ac.jp> for the report.

        * field.c (clear_mpfr):  New macro, clears MPFR and NUMCUR bits.
        (reset_record): Use it on the newly copied field values.
        (purge_record): Add introductory comment since we're in the file.

2020-07-01         Arnold D. Robbins     <arnold@skeeve.com>

        * eval.c (posix_compare): Rewrite contributed by
        Michael Builov <mbuilov@gmail.com>.

        Unrelated:

        * awk.h: New option: do_itrace.
        * interpret.h (r_interpret): Print instruction trace if enabled.
        * main.c (optab): New option: -I/--trace.
        (parse_args): Update optlist and the code to handle it.
        * NEWS: Updated.

2020-06-29         Arnold D. Robbins     <arnold@skeeve.com>

        * debug.c: Cleanup messages. Error messages start with lower
        case letter.
        * TODO: Updated.

2020-06-14         Arnold D. Robbins     <arnold@skeeve.com>

        Disallow SYMTAB and FUNCTAB as destination arguments to builtin
        functions that clear arrays:

        * awk.h (check_symtab_functab): Add declaration.
        * array.c (asort_actual): Call it in check for second argument.
        * builtin.c (check_symtab_functab): New function.
        (do_match): Call it in check for third argument.
        * field.c (do_patsplit, do_split): Call it in checks for fourth and
        second arguments.

2020-06-12         Arnold D. Robbins     <arnold@skeeve.com>

        * array.c (asort_actual): If SYMTAB or FUNCTAB is the second argument,
        fatal out.   If they are the first argument, make it work when a
        second argument is supplied.
        * TODO, NEWS: Updated.

2020-06-10         Arnold D. Robbins     <arnold@skeeve.com>

        More miscellaneous fixes from Michael Builov <mbuilov@gmail.com>.

        * node.c (r_unref): Handle GAWKDEBUG same as in awk.h:unref.
        (parse_escape): isxdigit/isdigit/isupper called with possible negative
        int: fixed. Dead code under "if (do_lint && j > 2)" eliminated,
        j cannot be > 2.
        (init_btowc_cache): Also initialize wide-char at index 255.

        And so that `make check' passes with GAWKDEBUG defined:

        * msg.c (err): Remove abort() call if fatal. Didn't really do
        anything special for us.

2020-06-10         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.c, command.c: Regenerated with bison 3.6.3.
        * NEWS: Updated.

2020-06-10         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        Convert exec_count from long long to unsigned long long.
        * awk.h (INSTRUCTION): Change ldl type from long long to unsigned
        long long.
        * debug.c (print_instruction): Fix printf format for exec_count.
        * profile.c (indent): The argument is now an unsigned long long,
        and fix the printf format to match.

2020-06-10         Arnold D. Robbins     <arnold@skeeve.com>

        Miscellaneous fixes from Michael Builov <mbuilov@gmail.com>.

        * awkgram.y (rule_block): Fix size declaration
        (parse_program): Adjust memset call.
        (get_comment): Check for end of file before checking for space.
        * io.c (gawk_popen): Move os_close_on_exec call inside #endif.
        * builtin.c (do_bindtextdomain): Don't pass NULL to strlen.
        * debug.c (set_breakpoint): Don't dereference NULL pointer in D_func.
        (serialize_list): Get the buffer management right to avoid overrun.

2020-06-10         Arnold D. Robbins     <arnold@skeeve.com>

        Thanks to Andrew Schorr for suggesting a better way to
        handle exec_count being a long long.

        * awk.h (INSTRUCTION): Make new ldl member be the long long.
        (exec_count): Is now ldl.
        * profile.c (pprint): Fix printf of exec_count.

2020-06-09         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (tokexpand): Use size_t instead of int for size of
        buffer.

2020-06-08         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y: Fix `print $"2"' case. Thanks to Ed Morton
        <mortoneccc@comcast.net> for the report.

        Unrelated:

        * awk.h (INSTRUCTION): Make dl a long long for profiling
        counts on 32 bit systems. Thanks to Peter Lindgren
        for the report.
        * profile.c (indent): Take a long long parameter and fix
        the printf format.

2020-06-05         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y: Allow @/foo/ as return expression in a function.
        Oops.

2020-06-05         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Add call to AM_PROG_AR for use in
        cross compiles.  Thanks to Sergei Trofimovich <slyfox@gentoo.org>
        for the patch.

2020-05-15         Arnold D. Robbins     <arnold@skeeve.com>

        * config.guess, config.sub: Updated from GNULIB.

2020-05-14         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.c, command.c: Rebuild with Bison 3.6.
        * NEWS: Updated.

2020-05-06         Arnold D. Robbins     <arnold@skeeve.com>

        Add lint check for string + string. It's not concatenation
        in awk, but is in most other languages. Thanks to Roland Illig
        <roland.illig@gmx.de> for the suggestion.

        * awk.h (Op_lint_plus): New opcode.
        * awkgram.y (mk_binary): Add it into the list in the right place
        if do_lint.
        * eval.c (optypes): Add case for Op_lint_plus.
        * interpret.h (r_interpret): Ditto.

2020-04-14         Arnold D. Robbins     <arnold@skeeve.com>

        * 5.1.0: Release tar ball made.

2020-04-10         Arnold D. Robbins     <arnold@skeeve.com>

        * field.c (save_FPAT): New global variable.
        (get_field): Check if using FPAT or not in order to pass in
        the right variables to parse_field function.  Fixes bug in
        delayed field parsing when using FPAT.  Thanks to
        luciole75w <luciole75w@gmail.com> for the bug report.
        (set_FPAT): Use global save_FPAT instead of local save_fpat.

        Unrelated:

        * awkgram.c, command.c: Rebuild with Bison 3.5.4.
        * NEWS: Updated.

        Unrelated:

        * awk.h (do_lint_extensions): Define to zero if NO_LINT.

2020-04-02         Arnold D. Robbins     <arnold@skeeve.com>

        * field.c (re_parse_field): If default parsing and trailing
        whitespace, don't set a null field at the end. Thanks to
        Ed Morton <mortoneccc@comcast.net> for the report.

2020-03-18         Arnold D. Robbins     <arnold@skeeve.com>

        * TODO: Add more stuff.

2020-03-15         Arnold D. Robbins     <arnold@skeeve.com>

        * Makefile.am (zos-diffout): New target.
        * awkgram.y, command.y: Upgrade to Bison 3.5.3.
        * NEWS: Updated.

2020-03-11         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c: Further message update. Thanks again to
        Roland Illig <roland.illig@gmx.de>.

2020-03-09         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        * array.c (sort_up_value_string): If either arg is not a Node_val,
        call out to sort_up_value_type instead. If cmp_strings returns zero,
        fall back to sort_up_index_string as a tie-breaker.
        (sort_up_value_number): If either arg is not a Node_val, call out to
        sort_up_value_type instead. If cmp_strings returns zero, fall back
        to sort_up_index_string as a tie-breaker.
        (do_sort_up_value_type): Renamed from sort_up_value_type with one
        change: if both arguments have type Node_var, we compare the
        var_value NODEs instead.
        (sort_up_value_type): New wrapper function around do_sort_up_value_type
        to fall back to sort_up_index_string as a tie-breaker.

2020-03-09         Arnold D. Robbins     <arnold@skeeve.com>

        * array.c, awk.h, awkgram.y, builtin.c, command.y, debug.c,
        ext.c, int_array.c, io.c, main.c, symbol.c: Messages refined
        based on suggestions from Roland Illig <roland.illig@gmx.de>.

2020-03-06         Jannick               <thirdedition@gmx.net>

        * Makefile.am: Replace AM_MAKEFLAGS with AM_CFLAGS and AM_LDFLAGS.
        Put pc/Makefile.tst into BUILT_SOURCES, instead of in dist-hook.
        Add $(srcdir) to rules for the yacc files. Use AM_LDFLAGS in
        the efence rule.
        * configure.ac: Use GAWK_CANONICAL_HOST instead of AC_CANONICAL_HOST;
        this supplies MSYS2 support. Remove use of EXEEXT.

2020-03-04         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Updated.

2020-02-13         John E. Malmberg      <wb8tyw@qsl.net>

        * custom.h: OpenVMS needs _REGEX_INCLUDE_LIMITS_H defined.

2020-02-09         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y: Add lint check for assignment in condition to
        if and for statements. Thanks to Jannick <thirdedition@gmx.net>
        for the suggestion.
        * debug.c (do_eval): Remove @eval from the symbol table if there
        was a syntax error in the statement being evaluated. Thanks again
        to Jannick, for the report.

2020-02-04         John E. Malmberg      <wb8tyw@qsl.net>

        * custom.h: Fix OpenVMS SIZE_MAX value.

2020-02-01         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h, dfa.c: Move include of mbsupport.h to ...
        * custom.h: ... here.
        * configure.ac: Add check for isblank.

2020-01-27         Arnold D. Robbins     <arnold@skeeve.com>

        * custom.h: Fix non-VMS compilation.

2020-01-26         John E. Malmberg      <wb8tyw@qsl.net>

        * custom.h: Additional OpenVMS typedefs needed.
        * gettext.h: Fix macro for implementations without gettext
        to not force the result to be a const char *.

2020-01-26         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        * array.c (sort_up_value_type): Small efficiency tweak. Only
        run through the list of other types if both values are not scalars.

2020-01-24         Arnold D. Robbins     <arnold@skeeve.com>

        * array.c, profile.c, cint_array.c, builtin.c, interpret.h,
        main.c: Update copyright years.

2020-01-23         Arnold D. Robbins     <arnold@skeeve.com>

        * array.c (sort_up_value_type): Handle other types of nodes,
        in case someone applies PROCINFO["sorted_in"] to SYMTAB or
        FUNCTAB. This threw an assertion error if assertions were
        enabled. Thanks to John Namam <gawker@703n.com> for the report.
        (asort_actual): Disallow SYMTAB and FUNCTAB as first arguments.
        * TODO: Note that we should should eventually allow SYMTAB/FUNCTAB
        passed to asort/asorti if a destination array is provided. (The
        current code breaks right now.)

2020-01-19         Arnold D. Robbins     <arnold@skeeve.com>

        * profile.c (pp_top): New macro.
        (pprint): Be smarter for print[f] with redirection that was
        parenthesized, to not print `printf(("hello\n")) > "..."'.

        Unrelated:
        * compile, config.guess, config.rpath, config.sub, depcomp: Updated
        from GNULIB.

2020-01-14         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        * cint_array.c (cint_array_init): Fix off-by-one error in array 
        bounds overflow check for an NHAT value set in the environment.
        Thanks to Michael Builov <mbuilov@gmail.com> for the report.

2020-01-08         Arnold D. Robbins     <arnold@skeeve.com>

        Fix a number of subtle memory leaks. Thanks to the
        combination of MEMDEBUG and valgrind for finding them.

        * builtin.c (do_print): Unref tmp if force_string_ofmt
        returned something different.
        (call_sub, call_match, call_split_func): Free any
        created regexp.
        * debug.c (do_eval): Free the node holding the @eval function
        when done with it.
        * field.c (init_fields): Create fields_arr[0] and Nnull_field
        in a rational fashion.
        * interpret.h (Op_assign_concat): Handle newly created node
        better.

        Unrelated:

        * interpret.h (Op_subscript): When retrieving from SYMTAB, check
        for Node_var_new; variables can exist but have not been assigned
        a value. Thanks to Denis Shirokov <cosmogen@gmail.com> for the report.

        Unrelated:

        * builtin.c (do_typeof): Handle Node_array_ref also. Thanks to
        Denis Shirokov <cosmogen@gmail.com> for the report.

2019-12-22         Arnold D. Robbins     <arnold@skeeve.com>

        * config.guess: Updated from GNULIB.

2019-12-22         Jannick               <thirdedition@gmx.net>

        * configure.ac: Hardcode the shared object extension to dll
        on Windows platforms, i.e.whenever EXEEXT is '.exe'.

2019-12-22         Arnold D. Robbins     <arnold@skeeve.com>

        * gettext.h: Update from gettext 0.20.1.
        * NEWS: Updated.

2019-12-18  Paul Eggert  <eggert@Penguin.CS.UCLA.EDU>

        Fix memcpy issue found by -fsanitize=undefined
        * field.c (set_record): Don't memcpy (databuf, NULL, 0),
        as the C standard says the resulting behavior is undefined.

2019-12-16         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y, command.y: Upgrade to Bison 3.5.
        * NEWS: Updated.

2019-11-21         Arnold D. Robbins     <arnold@skeeve.com>

        * config.rpath: Update from GNULIB.

2019-11-10         Arnold D. Robbins     <arnold@skeeve.com>

        * compile, config.rpath: Update from GNULIB. Adds msys support.

2019-11-03         Arnold D. Robbins     <arnold@skeeve.com>

        * field.c (get_field): Remove special case code for fpat_parse_field.
        Fixes a bug reported by Ed Morton <mortoneccc@comcast.net>.

2019-10-19         Arnold D. Robbins     <arnold@skeeve.com>

        * compile, depcomp: Update from GNULIB.

2019-10-13         Arnold D. Robbins     <arnold@skeeve.com>

        Fix handling of assigning @/.../ to FS and RS. Thanks
        to Stephane Chazelas <stephane.chazelas@gmail.com>
        for the report.

        * field.c (set_FS): Check for REGEX in the flags.
        * io.c (set_RS): Ditto.

2019-10-04         Arnold D. Robbins     <arnold@skeeve.com>

        * config.guess, config.sub, install-sh: Updated from GNULIB.

2019-09-30         John E. Malmberg     <wb8tyw@qsl.net>

        * custom.h: OpenVMS does not provide ULLONG_MAX

2019-09-20  Florian Weimer  <fweimer@redhat.com>

        * configure.ac (PRINTF_HAS_F_FORMAT): Include <string.h> for
        strcmp.
        (PRINTF_HAS_A_FORMAT): Likewise.
        * configure: Regenerate.

2019-09-17         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y, commands.y: Upgrade to Bison 3.4.2.
        * NEWS: Updated.

2019-09-10         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        * awk.h (block_header): Remove cnt field and replace it with
        highwater. If MEMDEBUG is defined, add active counter.
        * node.c (r_getblock): The cnt field was replaced by active. Update
        highwater as appropriate.
        (r_freeblock): Decrement the active counter (renamed from cnt).
        (more_blocks): Bump the highwater counter (renamed from cnt).
        * builtin.c (do_typeof): When providing PROCINFO debug memory stats,
        replace count_<blah> with <blah>_active and <blah>_highwater. When
        MEMDEBUG is not set, we calculate the active value by subtracting the
        number of elements in the free list from the highwater value.

2019-09-01         Arnold D. Robbins     <arnold@skeeve.com>

        * profile.c (pp_list, pp_concat): Fix use-after-free errors
        in both routines. Thanks to valgrind and Andy's MEMDEBUG code.

2019-09-01         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        * awk.h (block_header): Add cnt field even when MEMDEBUG is not
        defined, and add a name field.
        * node.c (nextfree): Initialize new name field.
        (more_blocks): Bump nextfree[id].cnt by BLOCKCHUNK.
        * builtin.c (do_typeof): When the 1st argument is PROCINFO and the
        2nd arg is provided, return new "count_<blah>" fields containing
        the memory allocation accounts of the various block types.

2019-08-30         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        * configure.ac (.developing): Add -DMEMDEBUG to CFLAGS.
        * awk.h (block_header): If MEMDEBUG is defined, add cnt field
        to track the number of allocations.
        (getblock, freeblock): When MEMDEBUG is defined, replace these
        macros with calls to new functions r_getblock and r_freeblock.
        * node.c (r_getblock, r_freeblock): New functions that simply
        use malloc and free when MEMDEBUG is defined.

2019-08-30         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        * interpret.h (r_interpret): For Op_match_rec, unref if a
        dynamic regexp. Fixes another memory issue. See the thread starting
        at https://lists.gnu.org/archive/html/bug-gawk/2019-08/msg00023.html.

2019-08-29         Arnold D. Robbins     <arnold@skeeve.com>

        Restore a modified version of the change of
        2016-05-03, which used realloc to shrink the buffer.

        * builtin.c (format_tree): Reduce INITIAL_OUT_SIZE to 64.
        At the end, call realloc only if there is more
        than (2 * INITIAL_OUT_SIZE) bytes to give back.

2019-08-23         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (main): Fix whitespace issues.
        * re.c (re_update): Small code cleanup in handling t->re_cnt.
        Thanks to Andrew Schorr.

2019-08-21         Arnold D. Robbins     <arnold@skeeve.com>

        * config.guess: Updated from GNULIB.

2019-08-15         Arnold D. Robbins     <arnold@skeeve.com>

        Revert a6df7afc605079df7d85318846a522ef64aaa44d, change of
        2016-05-03, which used realloc to shrink the buffer, in an
        attempt to save memory.  In actuality, it could cause increased
        memory usage, even though there was no memory leak. See
        https://lists.gnu.org/archive/html/bug-gawk/2019-08/msg00003.html
        and the rest of thread for more detail.

        * builtin.c (format_tree): Don't use realloc, just call
        make_str_node with the original buffer. Remove `olen_final'
        variable and its use.

2019-08-15         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        Reduce memory usage by only compiling the IGNORECASE version of
        regexp when it's actually needed.

        * awkgram.y (make_regnode): Only compile the regular version.
        * re.c (re_cache_get): New function.
        (re_update): Use it as appropriate.

2019-07-23         Koichi Murase         <myoga.murase@gmail.com>

        * builtin.c (do_xor): Remove unneeded local variable `i'. Simplify
        the loop's computation.
        (do_and): Improve the initial value for the result.

2019-07-23         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        Fix reporting of negative arguments for and(), or() and xor().
        Thanks to Koichi Murase <myoga.murase@gmail.com> for the
        report.

        * builtin.c (do_and): Use nargs instead of i in the loop to
        check for non-numeric and negative arguments.
        (do_or): Ditto.
        (do_xor): Ditto.

2019-07-23         Arnold D. Robbins     <arnold@skeeve.com>

        * Checklist: Updated.

2019-07-21         Arnold D. Robbins     <arnold@skeeve.com>

        * command.y, custom.h, eval.c, ext.c, field.c, io.c,
        msg.c, node.c, nonposix.h, re.c: Update copyright year.
        * NEWS: Updated.
        * README: Updated.

2019-07-16         Arnold D. Robbins     <arnold@skeeve.com>

        * TODO: Updated.
        * awkgram.y [GRAMMAR]: Change some lint warnings to use lintwarn.
        (yylex): Ditto.
        * field.c (choose_fs_function): Ditto.
        * main.c (main): Ditto.
        * node.c (parse_escape): Ditto.

2019-07-09         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.h: Update copyright year, fix some spelling errors.

2019-07-08         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        * gawkapi.h (gawk_api_major_version): Bump from 2 to 3 because the
        namespace changes altered the function signatures in gawk_api_t.
        And add a comment at the top of the structure with a reminder that
        the version number should be bumped whenever the struct is altered
        in any way.

2019-06-30         Arnold D. Robbins     <arnold@skeeve.com>

        * interpret.h (r_interpret): Fix two more cases of warning
        about gawk extensions.
        * awkgram.y [GRAMMAR]: And two more cases here. Thanks to
        Mark Krauze <daburashka@ya.ru> for making me look for them.

        Unrelated:

        * config.sub: Updated from GNULIB.

2019-06-26         Arnold D. Robbins     <arnold@skeeve.com>

        * symbol.c (install): Strip off any leading `awk::' before
        installing a symbol. Thanks to Andrew Schorr for the
        report.

2019-06-21         Arnold D. Robbins     <arnold@skeeve.com>

        * config.guess, config.sub: Updated from GNULIB.
        * awkgram.y (get_src_buf): Set buffers to zero to avoid
        possible issues with accessing uninitialized memory.
        Thanks to valgrind, as pointed out by Nadezhda Vyukova
        <qniva@yandex.ru>.
        * NEWS, README.git: Fix some typos.

2019-06-19         Arnold D. Robbins     <arnold@skeeve.com>

        * re.c (make_regexp): If do_posix, have {} in ok_to_escape.
        Thanks to Ed Morton <mortoneccc@comcast.net> for the report.

2019-06-18         Arnold D. Robbins     <arnold@skeeve.com>

        * 5.0.1: Release tar ball made.

2019-06-06         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (usage): Update comment for translators.

2019-06-02         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.c, command.c: Update to Bison 3.4.
        * NEWS: Updated.

2019-05-22         Arnold D. Robbins     <arnold@skeeve.com>

        Add --lint=no-ext. Suggest by Mark Krauze <daburashka@ya.ru>.

        * NEWS: Updated.
        * awk.h (DO_LINT_EXTENSIONS): New enum.
        (do_lint_extensions): New macro.
        * awkgram.y (yylex, snode): Use do_lint_extensions instead of
        do_lint where appropriate.
        * builtin.c (do_length): Ditto.
        * eval.c (set_IGNORECASE, set_BINMODE): Ditto.
        (set_LINT): Revise logic.
        * field.c (do_split, set_FIELDWIDTHS, chose_fs_function, set_FPAT):
        Ditto.
        * io.c (set_RS): Ditto.
        * main.c (usage): Updated.
        (parse_args): Revise the code to handle --lint=no-ext.

2019-05-10         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Updated.

2019-05-06         Arnold D. Robbins     <arnold@skeeve.com>

        In sandbox mode, disallow assigning filenames that weren't
        there initially. Thanks to Nolan Woods <nolan_w@sfu.ca> for
        pointing out the gap.

        * awk.h (init_argv_array): Add declaration.
        * cint_array.c (argv_store): New vtable for ARGV.
        (argv_shadow_array): New file static variable
        (argv_store, init_argv_array): New functions.
        * main.c (init_args): If in sandbox mode, build shadow array of
        initial argv values. Call init_argv_array.

2019-05-05         Arnold D. Robbins     <arnold@skeeve.com>

        * ext.c (load_ext): Fix the message in the version for when
        extensions are not available.

2019-04-24         Arnold D. Robbins     <arnold@skeeve.com>

        * msg.c (msg): Use %ld for the line number value. Thanks to
        Michal Jaegermann for the report.

2019-04-23         Arnold D. Robbins     <arnold@skeeve.com>

        * config.sub: Updated from GNULIB.

2019-02-21         Andrew J. Schorr      <aschorr@telemetry-investments.com>

        * interpret.h (Op_store_field): Move call to force_string to
        here from unfield.  Speeds up work with fields that are numeric
        only. Thanks to Tom Gray <tom_gray@keysight.com> for the report.

2019-04-21         Arnold D. Robbins     <arnold@skeeve.com>

        * POSIX.STD: Updated.
        * field.c (get_field): If NF == -1, check parse high water to
        set in_middle correctly. Thanks to <oguzismailuysal@gmail.com>
        for the report.

2019-04-18         Arnold D. Robbins     <arnold@skeeve.com>

        * msg.c (msg): Add an undocumented feature. "Use the Source, Luke."
        * Makefile.am (EXTRA_DIST): Add ChangeLog.1 to the list. Ooops.
        * CheckList: Updated.

        Fix core dump reported by Steve Kemp <steve@steve.org.uk>:

        * awk.h (errcount): Declare.
        * awkgram.y (errcount): No longer static.
        * command.y (dbg_errcount): Renamed from errcount.
        * main.c (catchsig, catchsegv): If errcount > 0, just exit,
        don't abort.  

2019-04-12         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Update version to 5.0.0.
        * configure: Regenerated.
        * ChangeLog.1: Rotated ChangeLog into this file.
        * ChangeLog: Created anew for gawk 5.0.0 and on.
        * README: Bump version to 5.0.0.
        * 5.0.0: Release tar ball made.

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