CMake/Modules/CMakeBackwardCompatibilityC...

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#=============================================================================
# Copyright 2002-2009 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distributed this file outside of CMake, substitute the full
# License text for the above reference.)
# Nothing here yet
IF(CMAKE_GENERATOR MATCHES "Visual Studio 7")
INCLUDE(CMakeVS7BackwardCompatibility)
SET(CMAKE_SKIP_COMPATIBILITY_TESTS 1)
ENDIF(CMAKE_GENERATOR MATCHES "Visual Studio 7")
IF(CMAKE_GENERATOR MATCHES "Visual Studio 6")
INCLUDE(CMakeVS6BackwardCompatibility)
SET(CMAKE_SKIP_COMPATIBILITY_TESTS 1)
ENDIF(CMAKE_GENERATOR MATCHES "Visual Studio 6")
IF(NOT CMAKE_SKIP_COMPATIBILITY_TESTS)
# Old CMake versions did not support OS X universal binaries anyway,
# so just get through this with at least some size for the types.
LIST(LENGTH CMAKE_OSX_ARCHITECTURES NUM_ARCHS)
IF(${NUM_ARCHS} GREATER 1)
IF(NOT DEFINED CMAKE_TRY_COMPILE_OSX_ARCHITECTURES)
MESSAGE(WARNING "This module does not work with OS X universal binaries.")
SET(__ERASE_CMAKE_TRY_COMPILE_OSX_ARCHITECTURES 1)
LIST(GET CMAKE_OSX_ARCHITECTURES 0 CMAKE_TRY_COMPILE_OSX_ARCHITECTURES)
ENDIF()
ENDIF()
INCLUDE (CheckTypeSize)
CHECK_TYPE_SIZE(int CMAKE_SIZEOF_INT)
CHECK_TYPE_SIZE(long CMAKE_SIZEOF_LONG)
CHECK_TYPE_SIZE("void*" CMAKE_SIZEOF_VOID_P)
CHECK_TYPE_SIZE(char CMAKE_SIZEOF_CHAR)
CHECK_TYPE_SIZE(short CMAKE_SIZEOF_SHORT)
CHECK_TYPE_SIZE(float CMAKE_SIZEOF_FLOAT)
CHECK_TYPE_SIZE(double CMAKE_SIZEOF_DOUBLE)
INCLUDE (CheckIncludeFile)
CHECK_INCLUDE_FILE("limits.h" CMAKE_HAVE_LIMITS_H)
CHECK_INCLUDE_FILE("unistd.h" CMAKE_HAVE_UNISTD_H)
CHECK_INCLUDE_FILE("pthread.h" CMAKE_HAVE_PTHREAD_H)
INCLUDE (CheckIncludeFiles)
CHECK_INCLUDE_FILES("sys/types.h;sys/prctl.h" CMAKE_HAVE_SYS_PRCTL_H)
INCLUDE (TestBigEndian)
TEST_BIG_ENDIAN(CMAKE_WORDS_BIGENDIAN)
INCLUDE (FindX11)
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IF("${X11_X11_INCLUDE_PATH}" MATCHES "^/usr/include$")
SET (CMAKE_X_CFLAGS "" CACHE STRING "X11 extra flags.")
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ELSE("${X11_X11_INCLUDE_PATH}" MATCHES "^/usr/include$")
SET (CMAKE_X_CFLAGS "-I${X11_X11_INCLUDE_PATH}" CACHE STRING
"X11 extra flags.")
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ENDIF("${X11_X11_INCLUDE_PATH}" MATCHES "^/usr/include$")
SET (CMAKE_X_LIBS "${X11_LIBRARIES}" CACHE STRING
"Libraries and options used in X11 programs.")
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SET (CMAKE_HAS_X "${X11_FOUND}" CACHE INTERNAL "Is X11 around.")
INCLUDE (FindThreads)
SET (CMAKE_THREAD_LIBS "${CMAKE_THREAD_LIBS_INIT}" CACHE STRING
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"Thread library used.")
SET (CMAKE_USE_PTHREADS "${CMAKE_USE_PTHREADS_INIT}" CACHE BOOL
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"Use the pthreads library.")
SET (CMAKE_USE_WIN32_THREADS "${CMAKE_USE_WIN32_THREADS_INIT}" CACHE BOOL
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"Use the win32 thread library.")
SET (CMAKE_HP_PTHREADS ${CMAKE_HP_PTHREADS_INIT} CACHE BOOL
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"Use HP pthreads.")
SET (CMAKE_USE_SPROC ${CMAKE_USE_SPROC_INIT} CACHE BOOL
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"Use sproc libs.")
IF(__ERASE_CMAKE_TRY_COMPILE_OSX_ARCHITECTURES)
SET(CMAKE_TRY_COMPILE_OSX_ARCHITECTURES)
SET(__ERASE_CMAKE_TRY_COMPILE_OSX_ARCHITECTURES)
ENDIF()
ENDIF(NOT CMAKE_SKIP_COMPATIBILITY_TESTS)
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MARK_AS_ADVANCED(
CMAKE_HP_PTHREADS
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CMAKE_THREAD_LIBS
CMAKE_USE_PTHREADS
CMAKE_USE_SPROC
CMAKE_USE_WIN32_THREADS
CMAKE_X_CFLAGS
CMAKE_X_LIBS
)
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