Use CMAKE_C_COMPILER_ID to determine if compiler is gcc or not.

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a1b4f44..e5edbe6 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -74,8 +74,7 @@ else()
   endif()
 endif()
 
-string(REGEX MATCH "gcc" GCC "${CMAKE_C_COMPILER}")
-if(GCC)
+if(${CMAKE_C_COMPILER_ID} STREQUAL "GNU")
   exec_program("${CMAKE_C_COMPILER} --version" OUTPUT_VARIABLE "COMPILER_C_VERSION")
   exec_program("${CMAKE_CXX_COMPILER} --version" OUTPUT_VARIABLE "COMPILER_CXX_VERSION")
   string(REGEX MATCH "[0-9].[0-9].[0-9]" COMPILER_C_VERSION "${COMPILER_C_VERSION}")