Makefile with task for updating glad

.gitignore

@@ -1,3 +1,5 @@
 zig-cache/
 zig-out/
 /result*
+
+glad.zip

Makefile

@@ -0,0 +1,17 @@
+# glad updates the GLAD loader. To use this, place the generated glad.zip
+# in this directory next to the Makefile, remove vendor/glad and run this target.
+#
+# Generator: https://gen.glad.sh/
+glad: vendor/glad
+.PHONY: glad
+
+vendor/glad: vendor/glad/include/glad/gl.h vendor/glad/include/glad/glad.h
+
+vendor/glad/include/glad/gl.h: glad.zip
+	rm -rf vendor/glad
+	mkdir -p vendor/glad
+	unzip glad.zip -dvendor/glad
+	find vendor/glad -type f -exec touch '{}' +
+
+vendor/glad/include/glad/glad.h: vendor/glad/include/glad/gl.h
+	@echo "#include <glad/gl.h>" > $@

build.zig

@@ -20,8 +20,8 @@ pub fn build(b: *std.build.Builder) !void {
     try ftgl.link(exe, b, target, mode, .{});
 
     // GLAD
-    exe.addIncludeDir("glad/include/");
+    exe.addIncludeDir("vendor/glad/include/");
-    exe.addCSourceFile("glad/src/gl.c", &.{});
+    exe.addCSourceFile("vendor/glad/src/gl.c", &.{});
 
     const ftlib = try ft.create(b, target, mode, .{});
     ftlib.link(exe);

glad/include/glad/glad.h

@@ -1,2 +0,0 @@
-// Backwards compatibility
-#include <glad/gl.h>

src/freetype-gl/build.zig

@@ -30,7 +30,7 @@ pub fn link(
     // C files
     ret.addCSourceFiles(srcs, flags.items);
     ret.addIncludeDir(root());
-    ret.addIncludeDir(thisDir() ++ "../../glad/include");
+    ret.addIncludeDir(thisDir() ++ "../../vendor/glad/include");
     ret.linkLibC();
 
     // For config.h

vendor/glad/include/glad/glad.h

@@ -0,0 +1 @@
+#include <glad/gl.h>