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BUG: fix for bug 4145 much better findSwig

This commit is contained in:
Bill Hoffman 2008-01-10 16:22:52 -05:00
parent d92d51429e
commit f61305e88c
1 changed files with 48 additions and 40 deletions
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88
Modules/FindSWIG.cmake
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@ -3,46 +3,54 @@
# SWIG_FOUND - set to true if SWIG is found
# SWIG_DIR - the directory where swig is installed
# SWIG_EXECUTABLE - the path to the swig executable
# SWIG_VERSION - the version number of the swig executable
#
# All informations are collected from the SWIG_EXECUTABLE so the
# version to be found can be changed from the command line by
# means of setting SWIG_EXECUTABLE
#
SET(SWIG_FOUND FOOBAR)
FIND_PATH(SWIG_DIR
SWIGConfig.cmake
/usr/share/swig1.3
/usr/lib/swig1.3
/usr/local/share/swig1.3)
FIND_PATH(SWIG_DIR
swig.swg
/usr/share/swig1.3
/usr/lib/swig1.3
/usr/local/share/swig1.3)
IF(EXISTS ${SWIG_DIR})
IF("x${SWIG_DIR}x" STREQUAL "x${CMAKE_ROOT}/Modulesx")
MESSAGE("SWIG_DIR should not be modules subdirectory of CMake")
ENDIF("x${SWIG_DIR}x" STREQUAL "x${CMAKE_ROOT}/Modulesx")
SET(SWIG_FOUND FALSE)
IF(EXISTS ${SWIG_DIR}/SWIGConfig.cmake)
INCLUDE(${SWIG_DIR}/SWIGConfig.cmake)
SET(SWIG_FOUND 1)
ELSE(EXISTS ${SWIG_DIR}/SWIGConfig.cmake)
FIND_PROGRAM(SWIG_EXECUTABLE
NAMES swig-1.3 swig
PATHS ${SWIG_DIR} ${SWIG_DIR}/.. ${SWIG_DIR}/../../bin /usr/bin /usr/local/bin )
SET(SWIG_USE_FILE ${CMAKE_ROOT}/Modules/UseSWIG.cmake)
ENDIF(EXISTS ${SWIG_DIR}/SWIGConfig.cmake)
ENDIF(EXISTS ${SWIG_DIR})
FIND_PROGRAM(SWIG_EXECUTABLE swig)
IF("x${SWIG_FOUND}x" STREQUAL "xFOOBARx")
SET(SWIG_FOUND 0)
IF(EXISTS ${SWIG_DIR})
IF(EXISTS ${SWIG_USE_FILE})
IF(EXISTS ${SWIG_EXECUTABLE})
SET(SWIG_FOUND 1)
ENDIF(EXISTS ${SWIG_EXECUTABLE})
ENDIF(EXISTS ${SWIG_USE_FILE})
ENDIF(EXISTS ${SWIG_DIR})
IF(NOT ${SWIG_FOUND})
IF(${SWIG_FIND_REQUIRED})
MESSAGE(FATAL_ERROR "Swig was not found on the system. Please specify the location of Swig.")
ENDIF(${SWIG_FIND_REQUIRED})
ENDIF(NOT ${SWIG_FOUND})
ENDIF("x${SWIG_FOUND}x" STREQUAL "xFOOBARx")
IF(SWIG_EXECUTABLE)
EXECUTE_PROCESS(COMMAND ${SWIG_EXECUTABLE} -swiglib
OUTPUT_VARIABLE SWIG_swiglib_output
ERROR_VARIABLE SWIG_swiglib_error
RESULT_VARIABLE SWIG_swiglib_result)
IF(SWIG_swiglib_result)
MESSAGE(SEND_ERROR "Command \"${SWIG_EXECUTABLE} -swiglib\" failed with output:\n${SWIG_swiglib_error}")
ELSE(SWIG_swiglib_result)
STRING(REGEX REPLACE "[\n\r]+" ";" SWIG_swiglib_output ${SWIG_swiglib_output})
# force the path to be computed each time in case SWIG_EXECUTABLE has changed.
SET(SWIG_DIR SWIG_DIR-NOTFOUND)
FIND_PATH(SWIG_DIR swig.swg PATHS ${SWIG_swiglib_output})
IF(SWIG_DIR)
SET(SWIG_FOUND 1)
SET(SWIG_USE_FILE ${CMAKE_ROOT}/Modules/UseSWIG.cmake)
EXECUTE_PROCESS(COMMAND ${SWIG_EXECUTABLE} -version
OUTPUT_VARIABLE SWIG_version_output
ERROR_VARIABLE SWIG_version_output
RESULT_VARIABLE SWIG_version_result)
IF(SWIG_version_result)
MESSAGE(SEND_ERROR "Command \"${SWIG_EXECUTABLE} -version\" failed with output:\n${SWIG_version_output}")
ELSE(SWIG_version_result)
STRING(REGEX REPLACE ".*SWIG Version[^0-9.]*\([0-9.]+\).*" "\\1"
SWIG_version_output "${SWIG_version_output}")
SET(SWIG_VERSION ${SWIG_version_output} CACHE STRING "Swig version" FORCE)
ENDIF(SWIG_version_result)
ENDIF(SWIG_DIR)
ENDIF(SWIG_swiglib_result)
ENDIF(SWIG_EXECUTABLE)
IF(NOT SWIG_FOUND)
IF(NOT SWIG_FIND_QUIETLY)
IF(SWIG_FIND_REQUIRED)
MESSAGE(FATAL_ERROR "SWIG was not found. Please specify Swig executable location")
ELSE(SWIG_FIND_REQUIRED)
MESSAGE(STATUS "SWIG was not found. Please specify Swig executable location")
ENDIF(SWIG_FIND_REQUIRED)
ENDIF(NOT SWIG_FIND_QUIETLY)
ENDIF(NOT SWIG_FOUND)