--- a/ext/ffi/ffi.c	2025-01-17 10:37:37
+++ a/ext/ffi/ffi.c	2025-01-17 10:39:17
@@ -57,6 +57,8 @@
 /* XXX need something better, perhaps with regard to SIMD, etc. */
 # define __BIGGEST_ALIGNMENT__ sizeof(size_t)
 #endif
+
+#define ZEND_STRNCMP(s,str) strncmp((s),(str),(sizeof(str)-1))
 
 ZEND_DECLARE_MODULE_GLOBALS(ffi)
 
@@ -5046,16 +5048,16 @@ static char *zend_ffi_parse_directives(const char *fil
 	*scope_name = NULL;
 	*lib = NULL;
 	while (*code_pos == '#') {
-		if (strncmp(code_pos, ZEND_STRL("#define")) == 0) {
+		if (ZEND_STRNCMP(code_pos, "#define") == 0) {
 			p = zend_ffi_skip_ws_and_comments(code_pos + sizeof("#define") - 1, false);
 
 			char **target = NULL;
 			const char *target_name = NULL;
-			if (strncmp(p, ZEND_STRL("FFI_SCOPE")) == 0) {
+			if (ZEND_STRNCMP(p, "FFI_SCOPE") == 0) {
 				p = zend_ffi_skip_ws_and_comments(p + sizeof("FFI_SCOPE") - 1, false);
 				target = scope_name;
 				target_name = "FFI_SCOPE";
-			} else if (strncmp(p, ZEND_STRL("FFI_LIB")) == 0) {
+			} else if (ZEND_STRNCMP(p, "FFI_LIB") == 0) {
 				p = zend_ffi_skip_ws_and_comments(p + sizeof("FFI_LIB") - 1, false);
 				target = lib;
 				target_name = "FFI_LIB";