diff --git a/javafx.graphics-adapt-to-gcc14.patch b/javafx.graphics-adapt-to-gcc14.patch
new file mode 100644
index 0000000000000000000000000000000000000000..b3e789767a5ced2d657b39e6150261bbe7b06b6e
--- /dev/null
+++ b/javafx.graphics-adapt-to-gcc14.patch
@@ -0,0 +1,26 @@
+diff --git a/modules/javafx.graphics/src/main/native-font/pango.c b/modules/javafx.graphics/src/main/native-font/pango.c
+index e29955754c74..f5f46aaccee2 100644
+--- a/modules/javafx.graphics/src/main/native-font/pango.c
++++ b/modules/javafx.graphics/src/main/native-font/pango.c
+@@ -402,7 +402,7 @@ JNIEXPORT jlong JNICALL OS_NATIVE(g_1utf8_1strlen)
+     (JNIEnv *env, jclass that, jlong str, jlong pos)
+ {
+     if (!str) return 0;
+-    return (jlong)g_utf8_strlen((const gchar *)str, (const gchar *)pos);
++    return (jlong)g_utf8_strlen((const gchar *)str, pos);
+ }
+ 
+ JNIEXPORT jlong JNICALL OS_NATIVE(g_1utf16_1to_1utf8)
+diff --git a/modules/javafx.graphics/src/main/native-prism-es2/x11/X11GLContext.c b/modules/javafx.graphics/src/main/native-prism-es2/x11/X11GLContext.c
+index f3fdf6107d73..cb815675b2b7 100644
+--- a/modules/javafx.graphics/src/main/native-prism-es2/x11/X11GLContext.c
++++ b/modules/javafx.graphics/src/main/native-prism-es2/x11/X11GLContext.c
+@@ -275,7 +275,7 @@ JNIEXPORT jlong JNICALL Java_com_sun_prism_es2_X11GLContext_nInitialize
+                 dlsym(RTLD_DEFAULT, "glXSwapIntervalSGI");
+ 
+         if (ctxInfo->glXSwapIntervalSGI == NULL) {
+-            ctxInfo->glXSwapIntervalSGI = glXGetProcAddress("glXSwapIntervalSGI");
++            ctxInfo->glXSwapIntervalSGI = (int (*)(int))glXGetProcAddress("glXSwapIntervalSGI");
+         }
+ 
+     }
diff --git a/openjfx.spec b/openjfx.spec
index e658e1c544c86af6c76d8e9eff9a5bd67876ebba..febbe7410c61ffd226c66727065c6edf66e230c4 100644
--- a/openjfx.spec
+++ b/openjfx.spec
@@ -4,7 +4,7 @@
 
 Name:           openjfx
 Version:        11.0.18.0
-Release:        4
+Release:        5
 Summary:        Rich client application platform for Java
 
 License:        GPL v2 with exceptions and BSD
@@ -40,6 +40,7 @@ Source26:       pom-swing.xml
 Source27:       pom-swt.xml
 Source28:       pom-web.xml
 Source29:       build.xml
+Patch0:         javafx.graphics-adapt-to-gcc14.patch
 
 ExclusiveArch:  x86_64 aarch64 ppc64le loongarch64 riscv64
 
@@ -81,7 +82,7 @@ Summary: OpenJFX development tools and libraries
 %global debug_package %{nil}
 
 %prep
-%setup -q -n rt-11.0.18+0
+%autosetup -n rt-11.0.18+0 -p1
 
 #Drop *src/test folders
 rm -rf modules/javafx.{base,controls,fxml,graphics,media,swing,swt,web}/src/test/
@@ -153,6 +154,9 @@ cp -a modules/javafx.graphics/mvn-lib{decora,javafx_font,javafx_font_freetype,ja
 %doc README.md
 
 %changelog
+* Mon Nov 03 2025 laokz <zhangkai@iscas.ac.cn> - 11.0.18.0-5
+- Some C code adapt to gcc14
+
 * Wed Nov 27 2024 Dingli Zhang <dingli@iscas.ac.cn> - 11.0.18.0-4
 - Add support for riscv64
 - Fix changelog date error