diff options
Diffstat (limited to 'Modules/CheckSymbolExists.cmake')
| -rw-r--r-- | Modules/CheckSymbolExists.cmake | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/Modules/CheckSymbolExists.cmake b/Modules/CheckSymbolExists.cmake index f75e43b5ac..ab4298a478 100644 --- a/Modules/CheckSymbolExists.cmake +++ b/Modules/CheckSymbolExists.cmake @@ -4,11 +4,14 @@ # SYMBOL - symbol # FILES - include files to check # VARIABLE - variable to return result -# -# If CMAKE_REQUIRED_FLAGS is set then those flags will be passed into the -# compile of the program likewise if CMAKE_REQUIRED_LIBRARIES is set then -# those libraries will be linked against the test program - +# +# The following variables may be set before calling this macro to +# modify the way the check is run: +# +# CMAKE_REQUIRED_FLAGS = string of compile command line flags +# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar) +# CMAKE_REQUIRED_INCLUDES = list of include directories +# CMAKE_REQUIRED_LIBRARIES = list of libraries to link MACRO(CHECK_SYMBOL_EXISTS SYMBOL FILES VARIABLE) IF("${VARIABLE}" MATCHES "^${VARIABLE}$") @@ -40,6 +43,7 @@ MACRO(CHECK_SYMBOL_EXISTS SYMBOL FILES VARIABLE) TRY_COMPILE(${VARIABLE} ${CMAKE_BINARY_DIR} ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/CheckSymbolExists.c + COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_SYMBOL_EXISTS_FLAGS} "${CHECK_SYMBOL_EXISTS_LIBS}" |