Commit: patch 9.1.1497: Link error with shm_open()

[Christian Brabandt]

patch 9.1.1497: Link error with shm_open()

Commit: https://github.com/vim/vim/commit/e92989b07a9ff8ae67400fa1d550a6ceed92f2e0
Author: Christian Brabandt <c...@256bit.org>
Date: Sun Jun 29 22:39:14 2025 +0200

patch 9.1.1497: Link error with shm_open()

Problem: Link error with shm_open()
(gcanat, after v9.1.1485)
Solution: use AC_LINK_IFELSE instead of AC_COMPILE_IFELSE

fixes: #17634

Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/src/auto/configure b/src/auto/configure
index df3d84b8a..b72d4edca 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -9080,7 +9080,7 @@ shm_open("/test", O_CREAT, 0600);
return 0;
}
_ACEOF
-if ac_fn_c_try_compile "$LINENO"
+if ac_fn_c_try_link "$LINENO"
then :
{ printf "%s
" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
printf "%s
" "yes" >&6; }; printf "%s
" "#define HAVE_SHM_OPEN 1" >>confdefs.h
@@ -9090,7 +9090,8 @@ else case e in #(
printf "%s
" "no" >&6; } ;;
esac
fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+ conftest$ac_exeext conftest.$ac_ext
CPPFLAGS=$cppflags_save

{ printf "%s
" "$as_me:${as_lineno-$LINENO}: checking --with-wayland argument" >&5
diff --git a/src/configure.ac b/src/configure.ac
index 7738433e8..62f6bbb70 100644
--- a/src/configure.ac
+++ b/src/configure.ac
@@ -2392,7 +2392,7 @@ dnl defining FEAT_XFONTSET is delayed, so that it can be disabled for no GUI
AC_MSG_CHECKING(if shm_open is available)
cppflags_save=$CPPFLAGS
CPPFLAGS="$CPPFLAGS $X_CFLAGS"
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+AC_LINK_IFELSE([AC_LANG_PROGRAM(
[#include <sys/mman.h>
#include <sys/stat.h>
#include <fcntl.h>], [shm_open("/test", O_CREAT, 0600);])],
diff --git a/src/version.c b/src/version.c
index 2cf34ea33..7b13da4da 100644
--- a/src/version.c
+++ b/src/version.c
@@ -719,6 +719,8 @@ static char *(features[]) =

static int included_patches[] =
{ /* Add new patch number below this line */
+/**/
+ 1497,
/**/
1496,
/**/