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Re: Compilation error in simple-object-elf.c


On Wed, Jul 18, 2018 at 6:18 PM Eli Zaretskii <eliz@gnu.org> wrote:
>
> Hi,
>
> I've built the pretest of GDB 8.2 with MinGW today, and bumped into a
> compilation error in libiberty:
>
>      if [ x"" != x ]; then \
>        gcc -c -DHAVE_CONFIG_H -O2 -gdwarf-4 -g3 -D__USE_MINGW_ACCESS  -I. -I./../include   -W -Wall -Wwrite-strings -Wc++-compat -Wstrict-prototypes -pedantic  -D_GNU_SOURCE   ./simple-object-elf.c -o noasan/simple-object-elf.o; \
>      else true; fi
>      gcc -c -DHAVE_CONFIG_H -O2 -gdwarf-4 -g3 -D__USE_MINGW_ACCESS  -I. -I./../include   -W -Wall -Wwrite-strings -Wc++-compat -Wstrict-prototypes -pedantic  -D_GNU_SOURCE ./simple-object-elf.c -o simple-object-elf.o
>      ./simple-object-elf.c: In function 'simple_object_elf_copy_lto_debug_sections':
>      ./simple-object-elf.c:1284:14: error: 'ENOTSUP' undeclared (first use in this function)
>             *err = ENOTSUP;
>                    ^~~~~~~
>      ./simple-object-elf.c:1284:14: note: each undeclared identifier is reported only once for each function it appears in
>
> Suggested fix:

Works for me, thus OK.  I'm going to check it in to make 8.2.

Richard.

> 2018-07-18  Eli Zaretskii  <eliz@gnu.org>
>
>         * libiberty/simple-object-elf.c (ENOTSUP): If not defined by
>           errno.h, redirect to ENOSYS.
>
> --- libiberty/simple-object-elf.c~0     2018-07-04 18:41:59.000000000 +0300
> +++ libiberty/simple-object-elf.c       2018-07-18 18:19:39.286654700 +0300
> @@ -22,6 +22,10 @@ Boston, MA 02110-1301, USA.  */
>  #include "simple-object.h"
>
>  #include <errno.h>
> +/* mingw.org's MinGW doesn't have ENOTSUP.  */
> +#ifndef ENOTSUP
> +# define ENOTSUP ENOSYS
> +#endif
>  #include <stddef.h>
>
>  #ifdef HAVE_STDLIB_H
>


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