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FindSZIP.cmake
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FindSZIP.cmake
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# - Find SZIP library
# - Derived from the FindTiff.cmake that is included with cmake
# Find the native SZIP includes and library
# This module defines
# SZIP_INCLUDE_DIRS, where to find tiff.h, etc.
# SZIP_LIBRARIES, libraries to link against to use SZIP.
# SZIP_FOUND, If false, do not try to use SZIP.
# also defined, but not for general use are
# SZIP_LIBRARY, where to find the SZIP library.
# SZIP_LIBRARY_DEBUG - Debug version of SZIP library
# SZIP_LIBRARY_RELEASE - Release Version of SZIP library
# MESSAGE (STATUS "Finding SZIP library and headers..." )
############################################
#
# Check the existence of the libraries.
#
############################################
# This macro was taken directly from the FindQt4.cmake file that is included
# with the CMake distribution. This is NOT my work. All work was done by the
# original authors of the FindQt4.cmake file. Only minor modifications were
# made to remove references to Qt and make this file more generally applicable
#########################################################################
MACRO (SZIP_ADJUST_LIB_VARS basename)
IF (${basename}_INCLUDE_DIR)
# if only the release version was found, set the debug variable also to the release version
IF (${basename}_LIBRARY_RELEASE AND NOT ${basename}_LIBRARY_DEBUG)
SET (${basename}_LIBRARY_DEBUG ${${basename}_LIBRARY_RELEASE})
SET (${basename}_LIBRARY ${${basename}_LIBRARY_RELEASE})
SET (${basename}_LIBRARIES ${${basename}_LIBRARY_RELEASE})
ENDIF (${basename}_LIBRARY_RELEASE AND NOT ${basename}_LIBRARY_DEBUG)
# if only the debug version was found, set the release variable also to the debug version
IF (${basename}_LIBRARY_DEBUG AND NOT ${basename}_LIBRARY_RELEASE)
SET (${basename}_LIBRARY_RELEASE ${${basename}_LIBRARY_DEBUG})
SET (${basename}_LIBRARY ${${basename}_LIBRARY_DEBUG})
SET (${basename}_LIBRARIES ${${basename}_LIBRARY_DEBUG})
ENDIF (${basename}_LIBRARY_DEBUG AND NOT ${basename}_LIBRARY_RELEASE)
IF (${basename}_LIBRARY_DEBUG AND ${basename}_LIBRARY_RELEASE)
# if the generator supports configuration types then set
# optimized and debug libraries, or if the CMAKE_BUILD_TYPE has a value
IF (CMAKE_CONFIGURATION_TYPES OR CMAKE_BUILD_TYPE)
SET (${basename}_LIBRARY optimized ${${basename}_LIBRARY_RELEASE} debug ${${basename}_LIBRARY_DEBUG})
ELSE(CMAKE_CONFIGURATION_TYPES OR CMAKE_BUILD_TYPE)
# if there are no configuration types and CMAKE_BUILD_TYPE has no value
# then just use the release libraries
SET (${basename}_LIBRARY ${${basename}_LIBRARY_RELEASE} )
ENDIF (CMAKE_CONFIGURATION_TYPES OR CMAKE_BUILD_TYPE)
SET (${basename}_LIBRARIES optimized ${${basename}_LIBRARY_RELEASE} debug ${${basename}_LIBRARY_DEBUG})
ENDIF (${basename}_LIBRARY_DEBUG AND ${basename}_LIBRARY_RELEASE)
SET (${basename}_LIBRARY ${${basename}_LIBRARY} CACHE FILEPATH "The ${basename} library")
IF (${basename}_LIBRARY)
SET (${basename}_FOUND 1)
ENDIF (${basename}_LIBRARY)
ENDIF (${basename}_INCLUDE_DIR )
# Make variables changeble to the advanced user
MARK_AS_ADVANCED (${basename}_LIBRARY ${basename}_LIBRARY_RELEASE ${basename}_LIBRARY_DEBUG ${basename}_INCLUDE_DIR )
ENDMACRO (SZIP_ADJUST_LIB_VARS)
# Look for the header file.
SET (SZIP_INCLUDE_SEARCH_DIRS
$ENV{SZIP_INSTALL}/include
$ENV{SZIP_INSTALL}/include/szip
/usr/include
/usr/include/szip
)
SET (SZIP_LIB_SEARCH_DIRS
$ENV{SZIP_INSTALL}/lib
/usr/lib
)
SET (SZIP_BIN_SEARCH_DIRS
$ENV{SZIP_INSTALL}/bin
/usr/bin
)
FIND_PATH (SZIP_INCLUDE_DIR
NAMES szlib.h
PATHS ${SZIP_INCLUDE_SEARCH_DIRS}
NO_DEFAULT_PATH
)
IF (WIN32 AND NOT MINGW)
SET (SZIP_SEARCH_DEBUG_NAMES "sz_d;libsz_d")
SET (SZIP_SEARCH_RELEASE_NAMES "sz;libsz;szip")
ELSE (WIN32 AND NOT MINGW)
SET (SZIP_SEARCH_DEBUG_NAMES "sz_d")
SET (SZIP_SEARCH_RELEASE_NAMES "sz")
ENDIF (WIN32 AND NOT MINGW)
# Look for the library.
FIND_LIBRARY (SZIP_LIBRARY_DEBUG
NAMES ${SZIP_SEARCH_DEBUG_NAMES}
PATHS ${SZIP_LIB_SEARCH_DIRS}
NO_DEFAULT_PATH
)
FIND_LIBRARY (SZIP_LIBRARY_RELEASE
NAMES ${SZIP_SEARCH_RELEASE_NAMES}
PATHS ${SZIP_LIB_SEARCH_DIRS}
NO_DEFAULT_PATH
)
SZIP_ADJUST_LIB_VARS (SZIP)
IF (SZIP_INCLUDE_DIR AND SZIP_LIBRARY)
SET (SZIP_FOUND 1)
SET (SZIP_LIBRARIES ${SZIP_LIBRARY})
SET (SZIP_INCLUDE_DIRS ${SZIP_INCLUDE_DIR})
IF (SZIP_LIBRARY_DEBUG)
GET_FILENAME_COMPONENT (SZIP_LIBRARY_PATH ${SZIP_LIBRARY_DEBUG} PATH)
SET (SZIP_LIB_DIR ${SZIP_LIBRARY_PATH})
ELSEIF (SZIP_LIBRARY_RELEASE)
GET_FILENAME_COMPONENT (SZIP_LIBRARY_PATH ${SZIP_LIBRARY_RELEASE} PATH)
SET (SZIP_LIB_DIR ${SZIP_LIBRARY_PATH})
ENDIF (SZIP_LIBRARY_DEBUG)
ELSE (SZIP_INCLUDE_DIR AND SZIP_LIBRARY)
SET (SZIP_FOUND 0)
SET (SZIP_LIBRARIES)
SET (SZIP_INCLUDE_DIRS)
ENDIF (SZIP_INCLUDE_DIR AND SZIP_LIBRARY)
# Report the results.
IF (NOT SZIP_FOUND)
SET (SZIP_DIR_MESSAGE
"SZip was not found. Make sure SZIP_LIBRARY and SZIP_INCLUDE_DIR are set or set the SZIP_INSTALL environment variable."
)
IF (NOT SZIP_FIND_QUIETLY)
MESSAGE (STATUS "${SZIP_DIR_MESSAGE}")
ELSE (NOT SZIP_FIND_QUIETLY)
IF (SZIP_FIND_REQUIRED)
MESSAGE (FATAL_ERROR "SZip was NOT found and is Required by this project")
ENDIF (SZIP_FIND_REQUIRED)
ENDIF (NOT SZIP_FIND_QUIETLY)
ENDIF (NOT SZIP_FOUND)
IF (SZIP_FOUND)
INCLUDE (CheckSymbolExists)
#############################################
# Find out if SZIP was build using dll's
#############################################
# Save required variable
SET (CMAKE_REQUIRED_INCLUDES_SAVE ${CMAKE_REQUIRED_INCLUDES})
SET (CMAKE_REQUIRED_FLAGS_SAVE ${CMAKE_REQUIRED_FLAGS})
# Add SZIP_INCLUDE_DIR to CMAKE_REQUIRED_INCLUDES
SET (CMAKE_REQUIRED_INCLUDES "${CMAKE_REQUIRED_INCLUDES};${SZIP_INCLUDE_DIRS}")
CHECK_SYMBOL_EXISTS (SZIP_BUILT_AS_DYNAMIC_LIB "SZconfig.h" HAVE_SZIP_DLL)
IF (HAVE_SZIP_DLL STREQUAL "TRUE")
SET (HAVE_SZIP_DLL "1")
ENDIF (HAVE_SZIP_DLL STREQUAL "TRUE")
# Restore CMAKE_REQUIRED_INCLUDES and CMAKE_REQUIRED_FLAGS variables
SET (CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES_SAVE})
SET (CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS_SAVE})
#
#############################################
ENDIF (SZIP_FOUND)
IF (FIND_SZIP_DEBUG)
MESSAGE (STATUS "SZIP_INCLUDE_DIR: ${SZIP_INCLUDE_DIR}")
MESSAGE (STATUS "SZIP_INCLUDE_DIRS: ${SZIP_INCLUDE_DIRS}")
MESSAGE (STATUS "SZIP_LIBRARY_DEBUG: ${SZIP_LIBRARY_DEBUG}")
MESSAGE (STATUS "SZIP_LIBRARY_RELEASE: ${SZIP_LIBRARY_RELEASE}")
MESSAGE (STATUS "HAVE_SZIP_DLL: ${HAVE_SZIP_DLL}")
MESSAGE (STATUS "CMAKE_BUILD_TYPE: ${CMAKE_BUILD_TYPE}")
ENDIF (FIND_SZIP_DEBUG)