Related to https://github.com/NoiseByNorthwest/php-spx/pull/305
--- a/src/php_spx.h
+++ b/src/php_spx.h
@@ -31,7 +31,7 @@
 #   error "Only x86-64 and ARM64 architectures are supported"
 #endif
 
-#if ZEND_MODULE_API_NO < 20100525 || ZEND_MODULE_API_NO > 20240924
+#if ZEND_MODULE_API_NO < 20100525 || ZEND_MODULE_API_NO > 20250925
 #   error "Only the following PHP versions are supported: 5.4 to 8.4"
 #endif
 
--- a/config.m4
+++ b/config.m4
@@ -19,7 +19,7 @@
     AC_DEFINE_UNQUOTED([SPX_HTTP_UI_ASSETS_DIR], [ "$PHP_SPX_ASSETS_DIR/web-ui" ], [path of web-ui assets directory])
     PHP_SUBST([PHP_SPX_ASSETS_DIR])
 
-    CFLAGS="-Werror -Wall -O3 -pthread -std=gnu90"
+    CFLAGS="-Werror -Wall -O3 -pthread -std=gnu11"
 
     if test "$(uname -s 2>/dev/null)" = "Darwin"
     then