[CMake] problem passing compiler flags to TRY_COMPILE

[David Somers]

On Tuesday 25 July 2006 17:06, David Somers wrote:
> I'm trying to write a test to check if a gcc compiler options is supported.
>
> I can't quite work out how to get the test code to compile with the flag I
> need check. I've tried doing this:
>
> TRY_COMPILE(CMAKE_GCC_VISIBILITY
> 	${CMAKE_BINARY_DIR}
> 	${CMAKE_BINARY_DIR}/CMakeTmp/testGCCvisibility.c
> 	CMAKE_FLAGS -DCMAKE_C_FLAGS:STRING=-fvisibility=hidden
> 	OUTPUT_VARIABLE OUTPUT
> 	)

Dammit... just realized I need to do it like:

TRY_COMPILE(CMAKE_GCC_VISIBILITY
	${CMAKE_BINARY_DIR}
	${CMAKE_BINARY_DIR}/CMakeTmp/testGCCvisibility.c
	COMPILE_DEFINITIONS -visibility=hidden
	OUTPUT_VARIABLE OUTPUT
	)

COMPILE_DEFINITIONS really should be called COMPILE_FLAGS, imho.

-- 
David Somers
typographer/programmer/whatever