From 08d2ee4a2e98cb7fa0446c894c04527459acf44f Mon Sep 17 00:00:00 2001
From: HJfod <dreadrollmusic@gmail.com>
Date: Fri, 3 Jan 2025 12:13:06 +0200
Subject: [PATCH] fix case-sensitive paths on linux

---
 .../platform/third_party/win32/OGLES/GL/glew.h      |  6 +++++-
 loader/include/Geode/cocos/robtop/glfw/glfw3.h      | 13 +++++++++++--
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/loader/include/Geode/cocos/platform/third_party/win32/OGLES/GL/glew.h b/loader/include/Geode/cocos/platform/third_party/win32/OGLES/GL/glew.h
index 0cd6ae3af..650631406 100644
--- a/loader/include/Geode/cocos/platform/third_party/win32/OGLES/GL/glew.h
+++ b/loader/include/Geode/cocos/platform/third_party/win32/OGLES/GL/glew.h
@@ -1164,7 +1164,11 @@ GLAPI void GLAPIENTRY glViewport (GLint x, GLint y, GLsizei width, GLsizei heigh
 #  if defined(__APPLE__) && defined(__MACH__)
 #    include <OpenGL/glu.h>
 #  else
-#    include <GL/glu.h>
+#    if defined(__linux__)
+#      include <gl/GLU.h>
+#    else
+#      include <GL/glu.h>
+#    endif
 #  endif
 #endif
 
diff --git a/loader/include/Geode/cocos/robtop/glfw/glfw3.h b/loader/include/Geode/cocos/robtop/glfw/glfw3.h
index 89414491e..b0b3c3b5e 100644
--- a/loader/include/Geode/cocos/robtop/glfw/glfw3.h
+++ b/loader/include/Geode/cocos/robtop/glfw/glfw3.h
@@ -182,13 +182,22 @@ extern "C" {
    #include <GLES3/gl2ext.h>
   #endif
  #elif !defined(GLFW_INCLUDE_NONE)
-  #include <GL/gl.h>
+  // AWESOME: Splat puts stuff in "gl" instead of "GL" which breaks Linux because their paths are case-sensitive
+  #if defined(__linux__)
+    #include <gl/gl.h>
+  #else
+    #include <GL/gl.h>
+  #endif
   #if defined(GLFW_INCLUDE_GLEXT)
    #include <GL/glext.h>
   #endif
  #endif
  #if defined(GLFW_INCLUDE_GLU)
-  #include <GL/glu.h>
+  #if defined(__linux__)
+    #include <gl/GLU.h>
+  #else
+    #include <GL/glu.h>
+  #endif
  #endif
 #endif