summaryrefslogtreecommitdiffstats
path: root/Modules/CheckCSourceCompiles.cmake
diff options
context:
space:
mode:
authorAndy Cedilnik <andy.cedilnik@kitware.com>2005-08-01 03:02:22 (GMT)
committerAndy Cedilnik <andy.cedilnik@kitware.com>2005-08-01 03:02:22 (GMT)
commite898324778c5f46d264a1351992be5d0c0d11eae (patch)
treeabdcec4b00849077861950b881f9ffe67b4ad31f /Modules/CheckCSourceCompiles.cmake
parentefc41c634cecd30de5396d00f18d5f9f780f41c6 (diff)
downloadCMake-e898324778c5f46d264a1351992be5d0c0d11eae.zip
CMake-e898324778c5f46d264a1351992be5d0c0d11eae.tar.gz
CMake-e898324778c5f46d264a1351992be5d0c0d11eae.tar.bz2
ENH: Add a test for C source file like AC_TRY_COMPILE
Diffstat (limited to 'Modules/CheckCSourceCompiles.cmake')
-rw-r--r--Modules/CheckCSourceCompiles.cmake53
1 files changed, 53 insertions, 0 deletions
diff --git a/Modules/CheckCSourceCompiles.cmake b/Modules/CheckCSourceCompiles.cmake
new file mode 100644
index 0000000..f43ebf3
--- /dev/null
+++ b/Modules/CheckCSourceCompiles.cmake
@@ -0,0 +1,53 @@
+#
+# Check if the source code provided in the SOURCE argument compiles.
+#
+# CHECK_C_SOURCE_COMPILES - macro which checks if the source code compiles\
+# SOURCE - source code to try to compile
+# VARIABLE - variable to store size if the type exists.
+#
+# Checks the following optional VARIABLES (not arguments)
+# CMAKE_REQUIRED_LIBRARIES - Link to extra libraries
+# CMAKE_REQUIRED_FLAGS - Extra flags to C compiler
+#
+
+MACRO(CHECK_C_SOURCE_COMPILES 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}")
+ ENDIF(CMAKE_REQUIRED_LIBRARIES)
+ IF(CMAKE_REQUIRED_INCLUDES)
+ SET(CHECK_C_SOURCE_COMPILES_ADD_INCLUDES
+ "-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}")
+ ENDIF(CMAKE_REQUIRED_INCLUDES)
+ FILE(WRITE "${CMAKE_BINARY_DIR}/CMakeTmp/src.c"
+ "${SOURCE}")
+
+ MESSAGE(STATUS "Performing Test ${VAR}")
+ TRY_COMPILE(${VAR}
+ ${CMAKE_BINARY_DIR}
+ ${CMAKE_BINARY_DIR}/CMakeTmp/src.c
+ CMAKE_FLAGS
+ "${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 ${VAR} - Success")
+ WRITE_FILE(${CMAKE_BINARY_DIR}/CMakeOutput.log
+ "Performing C SOURCE FILE Test ${VAR} succeded with the following output:\n"
+ "${OUTPUT}\n"
+ "Source file was:\n${SOURCE}\n" APPEND)
+ ELSE(${VAR})
+ MESSAGE(STATUS "Performing Test ${VAR} - Failed")
+ SET(${VAR} "" CACHE INTERNAL "Test ${FUNCTION}")
+ WRITE_FILE(${CMAKE_BINARY_DIR}/CMakeError.log
+ "Performing C SOURCE FILE Test ${VAR} failed with the following output:\n"
+ "${OUTPUT}\n"
+ "Source file was:\n${SOURCE}\n" APPEND)
+ ENDIF(${VAR})
+ ENDIF("${VAR}" MATCHES "^${VAR}$")
+ENDMACRO(CHECK_C_SOURCE_COMPILES)
+