[Bug ada/98171] New: adaint.c doesn't compile on AIX 7.2

[Bug ada/98171] New: adaint.c doesn't compile on AIX 7.2

[ro at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98171

            Bug ID: 98171
           Summary: adaint.c doesn't compile on AIX 7.2
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ada
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ro at gcc dot gnu.org
                CC: charlet at gcc dot gnu.org, dje at gcc dot gnu.org
  Target Milestone: ---
              Host: powerpc-ibm-aix7.2.0.0
            Target: powerpc-ibm-aix7.2.0.0
             Build: powerpc-ibm-aix7.2.0.0

I recently tried building master on AIX 7.2 in the cfarm (gcc119) with
--enable-languages=all and a self-compiled gcc 8.4.0 as bootstrap compiler.
This
already failed in stage 1 compiling adaint.c:

/home/ro/gcc/src/gcc-master/gcc/ada/adaint.c: In function 'int
__gnat_copy_attri
bs(char*, char*, int)':
/home/ro/gcc/src/gcc-master/gcc/ada/adaint.c:3289:21: error: no match for
'opera
tor=' (operand types are 'timespec' and 'st_timespec_t' {aka 'st_timespec'})
      tbuf[0] = fbuf.st_atim;
                     ^~~~~~~
In file included from /usr/include/sys/resource.h:57,
                 from
/home/ro/gcc/8/lib/gcc/powerpc-ibm-aix7.2.0.0/8.4.0/includ
e-fixed/sys/wait.h:56,
                 from
/home/ro/gcc/8/lib/gcc/powerpc-ibm-aix7.2.0.0/8.4.0/includ
e-fixed/stdlib.h:386,
                 from /home/ro/gcc/8/include/c++/8.4.0/cstdlib:75,
                 from /home/ro/gcc/8/include/c++/8.4.0/stdlib.h:36,
                 from /home/ro/gcc/src/gcc-master/gcc/system.h:259,
                 from /home/ro/gcc/src/gcc-master/gcc/ada/adaint.c:144:
/usr/include/sys/time.h:197:8: note: candidate: 'timespec&
timespec::operator=(c
onst timespec&)'
 struct timespec {
        ^~~~~~~~
/usr/include/sys/time.h:197:8: note:   no known conversion for argument 1 from
'
st_timespec_t' {aka 'st_timespec'} to 'const timespec&'
/usr/include/sys/time.h:197:8: note: candidate: 'timespec&
timespec::operator=(t
imespec&&)'
/usr/include/sys/time.h:197:8: note:   no known conversion for argument 1 from
'
st_timespec_t' {aka 'st_timespec'} to 'timespec&&'

and similarly for tbuf[1]/fbuf.st_mtim.

I managed to avoid this by assigning the members (tv_sec, tv_nsec)
individually.  In addition, I enabled the largefile functions in adaint.h given
that gcc/auto-host.h defines _LARGE_FILES 1.

However, I believe that this maze of platform-specific #ifdefs just cries for
proper autoconf tests, as has already been remarked on gcc-patches recently
IIRC.

(I can't attach the actual patch since gcc119 has been unaccessible for more
than
a day now).

While those changes allowed the compilation to finish, gnat1 still doesn't link
due to PR ada/95549.

[Bug ada/98171] adaint.c doesn't compile on AIX 7.2

[dje at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98171

--- Comment #1 from David Edelsohn <dje at gcc dot gnu.org> ---
gcc119 should be functioning again.

[Bug ada/98171] adaint.c doesn't compile on AIX 7.2

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98171

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ebotcazou at gcc dot gnu.org
   Last reconfirmed|                            |2024-01-09
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW