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authorBill Hoffman <bill.hoffman@kitware.com>2006-08-03 19:20:48 (GMT)
committerBill Hoffman <bill.hoffman@kitware.com>2006-08-03 19:20:48 (GMT)
commitbbd0beb2234623cb6c3eed1215f41713b2609ace (patch)
tree7336027c16fced05b45a72090bc00580e0ececee /Modules/CheckCXXSourceRuns.cmake
parent281c71e9d80b7a0d4000df3896841ba421d45006 (diff)
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ENH: add a try run source code macro
Diffstat (limited to 'Modules/CheckCXXSourceRuns.cmake')
-rw-r--r--Modules/CheckCXXSourceRuns.cmake67
1 files changed, 67 insertions, 0 deletions
diff --git a/Modules/CheckCXXSourceRuns.cmake b/Modules/CheckCXXSourceRuns.cmake
new file mode 100644
index 0000000..8cb05f0
--- /dev/null
+++ b/Modules/CheckCXXSourceRuns.cmake
@@ -0,0 +1,67 @@
+# - Check if the source code provided in the SOURCE argument compiles and runs.# CHECK_CXX_SOURCE_RUNS(SOURCE VAR)
+# - macro which checks if the source code compiles\
+# 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_CXX_SOURCE_RUNS SOURCE VAR)
+ IF("${VAR}" MATCHES "^${VAR}$")
+ SET(MACRO_CHECK_FUNCTION_DEFINITIONS
+ "-D${VAR} ${CMAKE_REQUIRED_FLAGS}")
+ IF(CMAKE_REQUIRED_LIBRARIES)
+ SET(CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES
+ "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
+ ELSE(CMAKE_REQUIRED_LIBRARIES)
+ SET(CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES)
+ ENDIF(CMAKE_REQUIRED_LIBRARIES)
+ IF(CMAKE_REQUIRED_INCLUDES)
+ SET(CHECK_CXX_SOURCE_COMPILES_ADD_INCLUDES
+ "-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}")
+ ELSE(CMAKE_REQUIRED_INCLUDES)
+ SET(CHECK_CXX_SOURCE_COMPILES_ADD_INCLUDES)
+ ENDIF(CMAKE_REQUIRED_INCLUDES)
+ FILE(WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.cxx"
+ "${SOURCE}\n")
+
+ MESSAGE(STATUS "Performing Test ${VAR}")
+ TRY_RUN(${VAR} ${VAR}_COMPILED
+ ${CMAKE_BINARY_DIR}
+ ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.cxx
+ COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
+ CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS}
+ "${CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES}"
+ "${CHECK_CXX_SOURCE_COMPILES_ADD_INCLUDES}"
+ OUTPUT_VARIABLE OUTPUT)
+ # if it did not compile make the return value fail code of 1
+ IF(NOT ${${VAR}_COMPILED})
+ SET(${VAR} 1)
+ ENDIF(NOT ${${VAR}_COMPILED})
+ # if the return value was 0 then it worked
+ SET(result_var ${${VAR}})
+ IF("${result_var}" EQUAL 0)
+ SET(${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"
+ "Return value: ${${VAR}}\n"
+ "Source file was:\n${SOURCE}\n")
+ ELSE("${result_var}" EQUAL 0)
+ 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"
+ "Return value: ${${VAR}}\n"
+ "Source file was:\n${SOURCE}\n")
+ ENDIF("${result_var}" EQUAL 0)
+ ENDIF("${VAR}" MATCHES "^${VAR}$")
+ENDMACRO(CHECK_CXX_SOURCE_RUNS)
+