ENH: make sure CMAKE_C_FLAGS are not clobbered

Tests/Complex/Executable/CMakeLists.txt

@@ -3,7 +3,7 @@ CMAKE_MINIMUM_REQUIRED(VERSION 1.3)
 # Create exe. 
 #
 SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DTEST_CXX_FLAGS")
-SET(CMAKE_C_FLAGS "${CMAKE_C} -DTEST_C_FLAGS")
+SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DTEST_C_FLAGS")
 SET(CMAKE_C_FLAGS "${CMAKE_ANSI_CFLAGS} ${CMAKE_C_FLAGS}")
 
 # Link to CMake lib

Tests/ComplexOneConfig/Executable/CMakeLists.txt

@@ -3,7 +3,7 @@ CMAKE_MINIMUM_REQUIRED(VERSION 1.3)
 # Create exe. 
 #
 SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DTEST_CXX_FLAGS")
-SET(CMAKE_C_FLAGS "${CMAKE_C} -DTEST_C_FLAGS")
+SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DTEST_C_FLAGS")
 SET(CMAKE_C_FLAGS "${CMAKE_ANSI_CFLAGS} ${CMAKE_C_FLAGS}")
 
 # Link to CMake lib

Tests/ComplexRelativePaths/Executable/CMakeLists.txt

@@ -3,7 +3,7 @@ CMAKE_MINIMUM_REQUIRED(VERSION 1.3)
 # Create exe. 
 #
 SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DTEST_CXX_FLAGS")
-SET(CMAKE_C_FLAGS "${CMAKE_C} -DTEST_C_FLAGS")
+SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DTEST_C_FLAGS")
 SET(CMAKE_C_FLAGS "${CMAKE_ANSI_CFLAGS} ${CMAKE_C_FLAGS}")
 
 # Link to CMake lib