Check for shm_open() in libroot to support Haiku

Resides on libroot (system runtime) on this platform.

Closes GH-5892.

diff --git a/ext/opcache/config.m4 b/ext/opcache/config.m4
index 08a39e2f63341a3ff71014657e9c572e3ae9a64d..054cd28c02475da269c0809bf25d6ec21c7467a9 100644 (file)
--- a/ext/opcache/config.m4
+++ b/ext/opcache/config.m4
@@ -222,7 +222,7 @@ int main() {
     have_shm_mmap_anon=yes],[have_shm_mmap_anon=no],[have_shm_mmap_anon=no])
   AC_MSG_RESULT([$have_shm_mmap_anon=yes])
 
-  PHP_CHECK_FUNC_LIB(shm_open, rt)
+  PHP_CHECK_FUNC_LIB(shm_open, rt, root)
   AC_MSG_CHECKING(for mmap() using shm_open() shared memory support)
   AC_RUN_IFELSE([AC_LANG_SOURCE([[
 #include <sys/types.h>