khanat-opennel-code/code/CMakeModules/FindExternal.cmake

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CMake
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# Look for a directory containing external libraries.
#
# The following values are defined
# EXTERNAL_PATH - where to find external
# EXTERNAL_INCLUDE_PATH - where to find external includes
# EXTERNAL_BINARY_PATH - where to find external binaries
# EXTERNAL_LIBRARY_PATH - where to find external libraries
# EXTERNAL_FOUND - True if the external libraries are available
SET(EXTERNAL_TEMP_PATH ${CMAKE_CURRENT_SOURCE_DIR}/external ${CMAKE_CURRENT_SOURCE_DIR}/../external ${CMAKE_CURRENT_SOURCE_DIR}/3rdParty ${CMAKE_CURRENT_SOURCE_DIR}/../3rdParty ${EXTERNAL_PATH})
SET(EXTERNAL_TEMP_FILE "include/zlib.h")
SET(EXTERNAL_NAME "external")
# If using STLport preprend external_stlport
IF(WITH_STLPORT)
SET(EXTERNAL_TEMP_PATH ${CMAKE_CURRENT_SOURCE_DIR}/external_stlport ${CMAKE_CURRENT_SOURCE_DIR}/../external_stlport ${EXTERNAL_TEMP_PATH})
SET(EXTERNAL_TEMP_FILE "include/stlport/string")
SET(EXTERNAL_NAME "external with STLport")
ENDIF()
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FIND_PATH(EXTERNAL_PATH
${EXTERNAL_TEMP_FILE}
PATHS
$ENV{EXTERNAL_PATH}
${EXTERNAL_TEMP_PATH}
/usr/local
/usr
/sw
/opt/local
/opt/csw
/opt
)
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IF(EXTERNAL_PATH)
SET(EXTERNAL_FOUND TRUE)
SET(EXTERNAL_INCLUDE_PATH "${EXTERNAL_PATH}/include")
# Using 32 or 64 bits binaries
IF(TARGET_X64 AND WIN32)
SET(EXTERNAL_BINARY_PATH "${EXTERNAL_PATH}/bin64")
ELSE()
SET(EXTERNAL_BINARY_PATH "${EXTERNAL_PATH}/bin")
ENDIF()
# Using 32 or 64 bits libraries
IF(TARGET_X64 AND WIN32)
SET(EXTERNAL_LIBRARY_PATH "${EXTERNAL_PATH}/lib64")
ELSE()
SET(EXTERNAL_LIBRARY_PATH "${EXTERNAL_PATH}/lib")
ENDIF()
SET(CMAKE_INCLUDE_PATH "${EXTERNAL_INCLUDE_PATH};${CMAKE_INCLUDE_PATH}")
# Stupid hack for FindOpenAL.cmake
SET(CMAKE_INCLUDE_PATH "${EXTERNAL_PATH};${CMAKE_INCLUDE_PATH}")
SET(CMAKE_LIBRARY_PATH "${EXTERNAL_LIBRARY_PATH};${CMAKE_LIBRARY_PATH}")
ENDIF()
IF(EXTERNAL_FOUND)
IF(NOT External_FIND_QUIETLY)
MESSAGE(STATUS "Found ${EXTERNAL_NAME}: ${EXTERNAL_PATH}")
ENDIF()
ELSE()
IF(External_FIND_REQUIRED)
MESSAGE(FATAL_ERROR "Unable to find ${EXTERNAL_NAME}!")
ELSE()
IF(NOT External_FIND_QUIETLY)
MESSAGE(STATUS "Warning: Unable to find ${EXTERNAL_NAME}!")
ENDIF()
ENDIF()
ENDIF()
MARK_AS_ADVANCED(EXTERNAL_INCLUDE_PATH EXTERNAL_BINARY_PATH EXTERNAL_LIBRARY_PATH)