From e6ae628b5b1116f1d65269ad8ca69258e7f45469 Mon Sep 17 00:00:00 2001
From: jonnypower <me@jonnypower.com>
Date: Sun, 29 Apr 2018 22:57:11 -0700
Subject: [PATCH] fix: Wasn't missing lib - it's GL/gl.h on linux

---
 .travis.yml                      | 1 -
 main/source/particles/opengl.cpp | 7 ++++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 9fcb1b19..e1893939 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,7 +14,6 @@ matrix:
             - libc6-i386
             - libcurl4-openssl-dev:i386
             - libpng12-dev:i386
-            - libgl1-mesa-dev:i386
 
     - os: osx
       compiler: clang
diff --git a/main/source/particles/opengl.cpp b/main/source/particles/opengl.cpp
index 10cf849e..38e7f7a8 100644
--- a/main/source/particles/opengl.cpp
+++ b/main/source/particles/opengl.cpp
@@ -11,10 +11,15 @@
 #include <windows.h>
 #include <GL/gl.h>
 #else
-#include <OpenGL/gl.h>
 #define NULL 0
 #endif
 
+#ifdef __APPLE__
+#include <OpenGL/gl.h>
+#else
+#include <GL/gl.h>
+#endif
+
 // XXX #include <iostream.h>
 
 // Emit OpenGL calls to draw the particles. These are drawn with