diff --git a/srcpkgs/php/template b/srcpkgs/php/template
index a1390b7e1e..c98c59815a 100644
--- a/srcpkgs/php/template
+++ b/srcpkgs/php/template
@@ -23,7 +23,14 @@ replaces="php-mcrypt<7.2.0"
 if [ -n "$CROSS_BUILD" ]; then
 	# php-pear needs php to build
 	hostmakedepends+=" php"
-	CFLAGS+=" -DHAVE_LIBDL -DHAVE_DLOPEN -DHAVE_DLSYM"
+	CFLAGS+=" -DHAVE_LIBDL
+		 -DHAVE_DLOPEN
+		 -DHAVE_DLSYM
+		 -DHAVE_SHM_IPC
+		 -DHAVE_SHM_MMAP_ANON
+		 -DHAVE_SHM_MMAP_ZERO
+		 -DHAVE_SHM_MMAP_POSIX
+		 -DHAVE_SHM_MMAP_FILE"
 fi
 
 do_build() {