Merge branch 'master' into mt-trace

[apitrace] / CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a9efe6d6ce746567d7ee95309f8f17ce5e38af3a..213325cfaa17dc81533207e9b01002ac7119db66 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,14 @@
 cmake_minimum_required (VERSION 2.8)
 
+
+# Use clang on MacOSX. gcc doesn't support __thread key, and Apple has
+# abandoned it for clang.  This must be done before the project is defined.
+if (APPLE)
+    set (CMAKE_C_COMPILER "clang")
+    set (CMAKE_CXX_COMPILER "clang++")
+endif ()
+
+
 project (apitrace)
 
 
@@ -25,6 +34,21 @@ set (ENABLE_EGL true CACHE BOOL "Enable EGL support.")
 ##############################################################################
 # Find dependencies
 
+# Ensure __thread is support
+if (NOT MSVC)
+    include (CheckCXXSourceCompiles)
+    check_cxx_source_compiles("__thread int i; int main() { return 0; }" HAVE_COMPILER_TLS)
+    if (NOT HAVE_COMPILER_TLS)
+        if (APPLE)
+            message (FATAL_ERROR "C++ compiler does not support __thread keyword. Please install XCode 4.5 or higher.")
+        else (MINGW32)
+            message (FATAL_ERROR "C++ compiler does not support __thread keyword. Please use MinGW g++ version 4.4 or higher")
+        else ()
+            message (FATAL_ERROR "C++ compiler does not support __thread keyword.")
+        endif ()
+    endif ()
+endif ()
+
 set (CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
 
 set (CMAKE_USE_PYTHON_VERSION 2.7 2.6)