diff --git a/Modules/CheckSymbolExists.cmake b/Modules/CheckSymbolExists.cmake index f3fb60cc5..0ec34a1ed 100644 --- a/Modules/CheckSymbolExists.cmake +++ b/Modules/CheckSymbolExists.cmake @@ -15,27 +15,38 @@ MACRO(CHECK_SYMBOL_EXISTS SYMBOL FILES VARIABLE) STRING(ASCII 40 OPEN_PARENT) STRING(ASCII 41 CLOSE_PARENT) SET(PARENTS "${OPEN_PARENT}${CLOSE_PARENT}") + IF(CMAKE_REQUIRED_LIBRARIES) + SET(CHECK_SYMBOL_EXISTS_LIBS + "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}") + ENDIF(CMAKE_REQUIRED_LIBRARIES) FOREACH(FILE ${FILES}) SET(CHECK_SYMBOL_EXISTS_CONTENT "${CHECK_SYMBOL_EXISTS_CONTENT}${POUND}include <${FILE}>\n") ENDFOREACH(FILE) SET(CHECK_SYMBOL_EXISTS_CONTENT - "${CHECK_SYMBOL_EXISTS_CONTENT}\n\nint main${PARENTS}{\n${POUND}ifndef ${SYMBOL}\nchar ${OPEN_PARENT}*f${CLOSE_PARENT} ${PARENTS} = ${SYMBOL};\n${POUND}endif\nreturn 0;\n}\n") + "${CHECK_SYMBOL_EXISTS_CONTENT}\nvoid cmakeRequireSymbol${OPEN_PARENT}int dummy,...${CLOSE_PARENT}{${OPEN_PARENT}void${CLOSE_PARENT}dummy;}\nint main${PARENTS}\n{\n${POUND}ifndef ${SYMBOL}\n cmakeRequireSymbol${OPEN_PARENT}0,&${SYMBOL}${CLOSE_PARENT};\n${POUND}endif\n return 0;\n}\n") + WRITE_FILE(${CMAKE_BINARY_DIR}/CMakeTmp/CheckSymbolExists.c "${CHECK_SYMBOL_EXISTS_CONTENT}") - MESSAGE(STATUS "Looking for ${SYMBOL} in ${FILES}") + MESSAGE(STATUS "Looking for ${SYMBOL}") TRY_COMPILE(${VARIABLE} ${CMAKE_BINARY_DIR} ${CMAKE_BINARY_DIR}/CMakeTmp/CheckSymbolExists.c CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_SYMBOL_EXISTS_FLAGS} + "${CHECK_SYMBOL_EXISTS_LIBS}" OUTPUT_VARIABLE OUTPUT) IF(${VARIABLE}) - MESSAGE(STATUS "Looking for ${SYMBOL} in ${FILES} - found") + MESSAGE(STATUS "Looking for ${SYMBOL} - found") SET(${VARIABLE} 1 CACHE INTERNAL "Have symbol ${SYMBOL}") + WRITE_FILE(${CMAKE_BINARY_DIR}/CMakeOutput.log + "Determining if the ${SYMBOL} " + "exist passed with the following output:\n" + "${OUTPUT}\nFile ${CMAKE_BINARY_DIR}/CMakeTmp/CheckSymbolExists.c:\n" + "${CHECK_SYMBOL_EXISTS_CONTENT}" APPEND) ELSE(${VARIABLE}) - MESSAGE(STATUS "Looking for ${SYMBOL} in ${FILES} - not found.") + MESSAGE(STATUS "Looking for ${SYMBOL} - not found.") SET(${VARIABLE} "" CACHE INTERNAL "Have symbol ${SYMBOL}") WRITE_FILE(${CMAKE_BINARY_DIR}/CMakeError.log "Determining if the ${SYMBOL} "