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-rw-r--r--Modules/CheckCSourceRuns.cmake60
1 files changed, 60 insertions, 0 deletions
diff --git a/Modules/CheckCSourceRuns.cmake b/Modules/CheckCSourceRuns.cmake
new file mode 100644
index 0000000..641b41f
--- /dev/null
+++ b/Modules/CheckCSourceRuns.cmake
@@ -0,0 +1,60 @@
+# - Check if the source code provided in the SOURCE argument compiles.
+# CHECK_C_SOURCE_RUNS(SOURCE VAR)
+# - macro which checks if the source code runs
+# SOURCE - source code to try to compile
+# VAR - variable to store size if the type exists.
+#
+# 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_C_SOURCE_RUNS SOURCE VAR)
+ IF("${VAR}" MATCHES "^${VAR}$")
+ SET(MACRO_CHECK_FUNCTION_DEFINITIONS
+ "-D${VAR} ${CMAKE_REQUIRED_FLAGS}")
+ IF(CMAKE_REQUIRED_LIBRARIES)
+ SET(CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES
+ "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
+ ELSE(CMAKE_REQUIRED_LIBRARIES)
+ SET(CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES)
+ ENDIF(CMAKE_REQUIRED_LIBRARIES)
+ IF(CMAKE_REQUIRED_INCLUDES)
+ SET(CHECK_C_SOURCE_COMPILES_ADD_INCLUDES
+ "-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}")
+ ELSE(CMAKE_REQUIRED_INCLUDES)
+ SET(CHECK_C_SOURCE_COMPILES_ADD_INCLUDES)
+ ENDIF(CMAKE_REQUIRED_INCLUDES)
+ FILE(WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.c"
+ "${SOURCE}\n")
+
+ MESSAGE(STATUS "Performing Test ${VAR}")
+ TRY_RUN(${VAR} ${VAR}_COMPILED
+ ${CMAKE_BINARY_DIR}
+ ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.c
+ COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
+ CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS}
+ "${CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES}"
+ "${CHECK_C_SOURCE_COMPILES_ADD_INCLUDES}"
+ OUTPUT_VARIABLE OUTPUT)
+ IF(${VAR})
+ SET(${VAR} 1 CACHE INTERNAL "Test ${FUNCTION}")
+ MESSAGE(STATUS "Performing Test ${VAR} - Success")
+ FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
+ "Performing C SOURCE FILE Test ${VAR} succeded with the following output:\n"
+ "${OUTPUT}\n"
+ "Source file was:\n${SOURCE}\n")
+ ELSE(${VAR})
+ MESSAGE(STATUS "Performing Test ${VAR} - Failed")
+ SET(${VAR} "" CACHE INTERNAL "Test ${FUNCTION}")
+ FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
+ "Performing C SOURCE FILE Test ${VAR} failed with the following output:\n"
+ "${OUTPUT}\n"
+ "Source file was:\n${SOURCE}\n")
+ ENDIF(${VAR})
+ ENDIF("${VAR}" MATCHES "^${VAR}$")
+ENDMACRO(CHECK_C_SOURCE_RUNS)
+