[Cmake-commits] [cmake-commits] king committed kwsysPlatformTests.cmake 1.3 1.4

[cmake-commits at cmake.org]

Update of /cvsroot/CMake/CMake/Source/kwsys
In directory public:/mounts/ram/cvs-serv29990/Source/kwsys

Modified Files:
	kwsysPlatformTests.cmake 
Log Message:
Create KWSYS_PLATFORM_INFO_TEST macro

This macro helps KWSys perform try-compile tests that extract 'INFO'
strings out of compiled binaries.  It works for CMake 2.6 and above.
On CMake 2.4 it always returns an empty list of information values,
so this should be used only as an optimization until 2.6 is required.


Index: kwsysPlatformTests.cmake
===================================================================
RCS file: /cvsroot/CMake/CMake/Source/kwsys/kwsysPlatformTests.cmake,v
retrieving revision 1.3
retrieving revision 1.4
diff -C 2 -d -r1.3 -r1.4
*** kwsysPlatformTests.cmake	28 Sep 2009 15:37:23 -0000	1.3
--- kwsysPlatformTests.cmake	20 Nov 2009 13:37:56 -0000	1.4
***************
*** 163,164 ****
--- 163,216 ----
    SET(KWSYS_PLATFORM_TEST_EXTRA_FLAGS)
  ENDMACRO(KWSYS_PLATFORM_CXX_TEST_RUN)
+ 
+ #-----------------------------------------------------------------------------
+ # KWSYS_PLATFORM_INFO_TEST(lang var description)
+ #
+ # Compile test named by ${var} and store INFO strings extracted from binary.
+ MACRO(KWSYS_PLATFORM_INFO_TEST lang var description)
+   # We can implement this macro on CMake 2.6 and above.
+   IF("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" LESS 2.6)
+     SET(${var} "")
+   ELSE()
+     # Choose a location for the result binary.
+     SET(KWSYS_PLATFORM_INFO_FILE
+       ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_FILES_DIRECTORY}/${var}.bin)
+ 
+     # Compile the test binary.
+     IF(NOT DEFINED ${var}_COMPILED)
+       MESSAGE(STATUS "${description}")
+       TRY_COMPILE(${var}_COMPILED
+         ${CMAKE_CURRENT_BINARY_DIR}
+         ${CMAKE_CURRENT_SOURCE_DIR}/${KWSYS_PLATFORM_TEST_FILE_${lang}}
+         COMPILE_DEFINITIONS -DTEST_${var}
+           ${KWSYS_PLATFORM_${lang}_TEST_DEFINES}
+           ${KWSYS_PLATFORM_${lang}_TEST_EXTRA_FLAGS}
+         OUTPUT_VARIABLE OUTPUT
+         COPY_FILE ${KWSYS_PLATFORM_INFO_FILE}
+         )
+       IF(${var}_COMPILED)
+         FILE(APPEND
+           ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
+           "${description} compiled with the following output:\n${OUTPUT}\n\n")
+       ELSE()
+         FILE(APPEND
+           ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
+           "${description} failed to compile with the following output:\n${OUTPUT}\n\n")
+       ENDIF()
+       IF(${var}_COMPILED)
+         MESSAGE(STATUS "${description} - compiled")
+       ELSE()
+         MESSAGE(STATUS "${description} - failed")
+       ENDIF()
+     ENDIF()
+ 
+     # Parse info strings out of the compiled binary.
+     IF(${var}_COMPILED)
+       FILE(STRINGS ${KWSYS_PLATFORM_INFO_FILE} ${var} REGEX "INFO:[A-Za-z0-9]+\\[[^]]*\\]")
+     ELSE()
+       SET(${var} "")
+     ENDIF()
+ 
+     SET(KWSYS_PLATFORM_INFO_FILE)
+   ENDIF()
+ ENDMACRO()