On AIX 7.3.1 with gcc, I see these compilation errors:
../gllib/sys/socket.h:874:1: error: conflicting declaration of 'int accept(int,
sockaddr*, socklen_t*)' with 'C' linkage
874 | _GL_CXXALIASWARN (accept);
| ^~~~~~~~~~~~~~~~
...
../gllib/sys/socket.h:936:1: error: conflicting declaration of 'int
getpeername(int, sockaddr*, socklen_t*)' with 'C' linkage
936 | _GL_CXXALIASWARN (getpeername);
| ^~~~~~~~~~~~~~~~
...
../gllib/sys/socket.h:968:1: error: conflicting declaration of 'int
getsockname(int, sockaddr*, socklen_t*)' with 'C' linkage
968 | _GL_CXXALIASWARN (getsockname);
| ^~~~~~~~~~~~~~~~
...
../gllib/sys/socket.h:1115:1: error: conflicting declaration of 'ssize_t
recvfrom(int, void*, size_t, int, sockaddr*, socklen_t*)' with 'C' linkage
1115 | _GL_CXXALIASWARN (recvfrom);
| ^~~~~~~~~~~~~~~~
This patch fixes them, as usual for this type of error.
2023-08-18 Bruno Haible <br...@clisp.org>
sys_socket: Fix compilation errors in C++ mode on AIX 7.3 with gcc.
* lib/sys_socket.in.h (accept, getpeername, getsockname, recvfrom):
Disable _GL_CXXALIASWARN invocation on non-glibc systems.
diff --git a/lib/sys_socket.in.h b/lib/sys_socket.in.h
index afeedf070c..62211e475c 100644
--- a/lib/sys_socket.in.h
+++ b/lib/sys_socket.in.h
@@ -358,7 +358,9 @@ _GL_CXXALIAS_SYS_CAST (accept, int,
struct sockaddr *restrict addr,
socklen_t *restrict addrlen));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (accept);
+# endif
#elif @HAVE_WINSOCK2_H@
# undef accept
# define accept accept_used_without_requesting_gnulib_module_accept
@@ -420,7 +422,9 @@ _GL_CXXALIAS_SYS_CAST (getpeername, int,
(int fd, struct sockaddr *restrict addr,
socklen_t *restrict addrlen));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (getpeername);
+# endif
#elif @HAVE_WINSOCK2_H@
# undef getpeername
# define getpeername
getpeername_used_without_requesting_gnulib_module_getpeername
@@ -452,7 +456,9 @@ _GL_CXXALIAS_SYS_CAST (getsockname, int,
(int fd, struct sockaddr *restrict addr,
socklen_t *restrict addrlen));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (getsockname);
+# endif
#elif @HAVE_WINSOCK2_H@
# undef getsockname
# define getsockname
getsockname_used_without_requesting_gnulib_module_getsockname
@@ -599,7 +605,9 @@ _GL_CXXALIAS_SYS_CAST (recvfrom, ssize_t,
struct sockaddr *restrict from,
socklen_t *restrict fromlen));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (recvfrom);
+# endif
#elif @HAVE_WINSOCK2_H@
# undef recvfrom
# define recvfrom recvfrom_used_without_requesting_gnulib_module_recvfrom
