Re: recent changes break gawk compilation

[Paul Eggert]

On 2022-10-15 12:36, Arnold Robbins wrote:
> Hi.
>
> In trying to keep gawk up to date with gnulib, I find that there are
> several recent changes that break compilation. I'm using Ubuntu 22.04.
>
> In the files dfa.h, localeinfo.h, malloc/dynarray.h, and regex_internal.h,
> the include of <stdbool.h> was removed. I don't understand why.

This is because 'bool', 'true', and 'false' are reserved words in C23, 
so programs cannot assume they are macros and need not include 
<stdbool.h>. Gnulib is forward-looking here and has largely adopted the 
C23 style, with compatibility macros in <config.h> for pre-C23 platforms.

To fix this compatibility issue for gawk, please try the attached 
patches. The first contains the real work. Most of this first patch is 
simply copying straight from Gnulib; the only changes I made by hand 
were one-line changes to awk.h (stop including <stdbool.h>) and to 
configure.ac (use gl_C_BOOL rather than AC_HEADER_STDBOOL).

The second patch affects only autogenerated files; it was automatically 
generated from the first.

This isn't a complete sync from Gnulib; that is, I didn't worry about 
Gnulib files unrelated to this issue.

0001-Port-to-current-Gnulib.patch
Description: Text Data

0002-Regenerate.patch
Description: Text Data