fix some complier warnings and add -Wundef to CMake's default GCC warnings.

[blender.git] / CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 38ce86898552da0509a9143d596c3362e15507b3..b54b18aab379a34eee6966aa472b89b064ce26a6 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1267,6 +1267,7 @@ if(CMAKE_COMPILER_IS_GNUCC)
        ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_POINTER_ARITH -Wpointer-arith)
        ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_UNUSED_PARAMETER -Wunused-parameter)
        ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_WRITE_STRINGS -Wwrite-strings)
+       ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_UNDEFINED -Wundef)
        # disable because it gives warnings for printf() & friends.
        # ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_DOUBLE_PROMOTION -Wdouble-promotion -Wno-error=double-promotion)
        ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_NO_ERROR_UNUSED_BUT_SET_VARIABLE -Wno-error=unused-but-set-variable)
@@ -1274,6 +1275,7 @@ if(CMAKE_COMPILER_IS_GNUCC)
        ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_ALL -Wall)
        ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_NO_INVALID_OFFSETOF -Wno-invalid-offsetof)
        ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_NO_SIGN_COMPARE -Wno-sign-compare)
+       ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_UNDEFINED -Wundef)
 
 elseif(CMAKE_C_COMPILER_ID MATCHES "Intel")