libiberty/getopt.c file is defining _NO_PROTO which causes conflicting
declarations for the functions in AIX header files like stdio.h & stdlib.h.
These declarations are being considered as errors in C23 which wasn't
the case with C17.
Here is the error we get.
/gcc_build/./prev-gcc/xgcc -B/gcc_build/./prev-gcc/
-B/home/sangam/install/GCC/powerpc-ibm-aix7.3.3.0/bin/ -B/home/sangam
/install/GCC/powerpc-ibm-aix7.3.3.0/bin/
-B/home/sangam/install/GCC/powerpc-ibm-aix7.3.3.0/lib/ -isystem /home/sangam/ins
tall/GCC/powerpc-ibm-aix7.3.3.0/include -isystem
/home/sangam/install/GCC/powerpc-ibm-aix7.3.3.0/sys-include -fno-check
ing -c -DHAVE_CONFIG_H -g -O2 -fno-checking -I.
-I/opt/freeware/src/packages/BUILD/gcc/libiberty/../include -W -Wall -W
write-strings -Wc++-compat -Wstrict-prototypes -Wshadow=local -pedantic
-D_GNU_SOURCE /opt/freeware/src/packages/BUILD/
gcc/libiberty/getopt.c -o getopt.o
In file included from
/opt/freeware/src/packages/BUILD/gcc/libiberty/getopt.c:45:
/gcc_build/prev-gcc/include-fixed/stdio.h:593:12: error: conflicting types for
'fgetpos64'; have 'int(FILE *, fpos64_t *)
' {aka 'int(FILE *, long long int *)'}
593 | extern int fgetpos64(FILE *, fpos64_t *);
| ^~~~~~~~~
/gcc_build/prev-gcc/include-fixed/stdio.h:298:17: note: previous declaration of
'fgetpos64' with type 'int(void)'
298 | extern int fgetpos();
| ^~~~~~~
/gcc_build/prev-gcc/include-fixed/stdio.h:594:14: error: conflicting types for
'fopen64'; have 'FILE *(const char *, cons
t char *)'
594 | extern FILE *fopen64(const char *, const char *);
| ^~~~~~~
/gcc_build/prev-gcc/include-fixed/stdio.h:259:17: note: previous declaration of
'fopen64' with type 'FILE *(void)'
259 | extern FILE * fopen();
| ^~~~~
/gcc_build/prev-gcc/include-fixed/stdio.h:595:14: error: conflicting types for
'freopen64'; have 'FILE *(const char *, co
nst char *, FILE *)'
595 | extern FILE *freopen64(const char *, const char *, FILE *);
| ^~~~~~~~~
/gcc_build/prev-gcc/include-fixed/stdio.h:260:17: note: previous declaration of
'freopen64' with type 'FILE *(void)'
260 | extern FILE * freopen();
| ^~~~~~~
/gcc_build/prev-gcc/include-fixed/stdio.h:597:12: error: conflicting types for
'fsetpos64'; have 'int(FILE *, const fpos6
4_t *)' {aka 'int(FILE *, const long long int *)'}
597 | extern int fsetpos64(FILE *, const fpos64_t *);
| ^~~~~~~~~
/gcc_build/prev-gcc/include-fixed/stdio.h:300:17: note: previous declaration of
'fsetpos64' with type 'int(void)'
300 | extern int fsetpos();
| ^~~~~~~
In file included from
/opt/freeware/src/packages/BUILD/gcc/libiberty/getopt.c:216:
/gcc_build/prev-gcc/include-fixed/stdlib.h: In function 'strtold':
/gcc_build/prev-gcc/include-fixed/stdlib.h:233:30: error: too many arguments to
function 'strtod'
Compiled with this patch on RHEL8.10 ppc64le as well.
---
libiberty/getopt.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/libiberty/getopt.c b/libiberty/getopt.c
index 2f7086cc0c8..48736d4db41 100644
--- a/libiberty/getopt.c
+++ b/libiberty/getopt.c
@@ -23,12 +23,6 @@
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301,
USA. */
-/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
- Ditto for AIX 3.2 and <stdlib.h>. */
-#ifndef _NO_PROTO
-# define _NO_PROTO
-#endif
-
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
--
2.41.0
