From 2177a1701a43e7b8fba3b5f076bb511244bc9ac2 Mon Sep 17 00:00:00 2001
From: Andrew Meadows <andrew@highfidelity.io>
Date: Thu, 15 Jan 2015 11:38:38 -0800
Subject: [PATCH] more correct cmake config for Bullet

(copying pattern from IncludeGLM.cmake)
---
 cmake/macros/IncludeBullet.cmake | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/cmake/macros/IncludeBullet.cmake b/cmake/macros/IncludeBullet.cmake
index 56b6ce0ced..186e84d1ab 100644
--- a/cmake/macros/IncludeBullet.cmake
+++ b/cmake/macros/IncludeBullet.cmake
@@ -10,5 +10,7 @@
 macro(INCLUDE_BULLET)
     find_package(Bullet REQUIRED)
     include_directories("${BULLET_INCLUDE_DIRS}")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -isystem ${BULLET_INCLUDE_DIRS}")
+    if (APPLE OR UNIX)
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -isystem ${BULLET_INCLUDE_DIRS}")
+    endif()
 endmacro(INCLUDE_BULLET)