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 <cb@256bit.org>
diff --git a/src/configure.ac b/src/configure.ac
index 7738433..62f6bbb 100644
--- a/src/configure.ac
+++ b/src/configure.ac
@@ -2392,7 +2392,7 @@
 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);])],