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| author | Bill Hoffman <bill.hoffman@kitware.com> | 2002-11-21 12:52:54 -0500 |
|---|---|---|
| committer | Bill Hoffman <bill.hoffman@kitware.com> | 2002-11-21 12:52:54 -0500 |
| commit | 9a6c95fcea52bd1b5b4930fdac0a48088e55273b (patch) | |
| tree | 25daf13b3701dcedcd1210e79dfcae42946a6043 /Modules/TestCXXAcceptsFlag.cmake | |
| parent | b8a1b1e9e7adcc69d26d6fefaf6da059580afdba (diff) | |
| download | cmake-9a6c95fcea52bd1b5b4930fdac0a48088e55273b.tar.gz | |
add checks for ansi flags and not hard code them
Diffstat (limited to 'Modules/TestCXXAcceptsFlag.cmake')
| -rw-r--r-- | Modules/TestCXXAcceptsFlag.cmake | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Modules/TestCXXAcceptsFlag.cmake b/Modules/TestCXXAcceptsFlag.cmake new file mode 100644 index 0000000000..1c6f351675 --- /dev/null +++ b/Modules/TestCXXAcceptsFlag.cmake @@ -0,0 +1,20 @@ +# +# Check if the CXX compiler accepts a flag +# +# CHECK_FUNCTION_EXISTS - macro which checks if the function exists +# FLAG - the flags to try +# VARIABLE - variable to store the result +# + +MACRO(CHECK_CXX_ACCEPTS_FLAG FLAGS VARIABLE) + MESSAGE(STATUS "Checking to see if CXX compiler acepts flag ${FLAGS}") + TRY_COMPILE(${VARIABLE} + ${PROJECT_BINARY_DIR} + ${CMAKE_ROOT}/Modules/DummyCXXFile.cxx + CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${FLAGS} + OUTPUT_VARIABLE OUTPUT) + IF(NOT ${VARIABLE}) + WRITE_FILE(${PROJECT_BINARY_DIR}/CMakeError.log + "Determining if the CXX compiler accepts the flag ${FLAGS} failed with the following output:\n" "${OUTPUT}\n" APPEND) + ENDIF(NOT ${VARIABLE}) +ENDMACRO(CHECK_CXX_ACCEPTS_FLAG) |