/usr/share/cmake-2.8/Modules/CMakeBackwardCompatibilityC.cmake is in cmake-data 2.8.12.2-0ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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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 distribute 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()
if(CMAKE_GENERATOR MATCHES "Visual Studio 6")
include(CMakeVS6BackwardCompatibility)
set(CMAKE_SKIP_COMPATIBILITY_TESTS 1)
endif()
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(${NUM_ARCHS} GREATER 1)
if(NOT DEFINED CMAKE_TRY_COMPILE_OSX_ARCHITECTURES)
message(WARNING "This module does not work with OS X universal binaries.")
set(__ERASE_CMAKE_TRY_COMPILE_OSX_ARCHITECTURES 1)
list(GET CMAKE_OSX_ARCHITECTURES 0 CMAKE_TRY_COMPILE_OSX_ARCHITECTURES)
endif()
endif()
include (CheckTypeSize)
CHECK_TYPE_SIZE(int CMAKE_SIZEOF_INT)
CHECK_TYPE_SIZE(long CMAKE_SIZEOF_LONG)
CHECK_TYPE_SIZE("void*" CMAKE_SIZEOF_VOID_P)
CHECK_TYPE_SIZE(char CMAKE_SIZEOF_CHAR)
CHECK_TYPE_SIZE(short CMAKE_SIZEOF_SHORT)
CHECK_TYPE_SIZE(float CMAKE_SIZEOF_FLOAT)
CHECK_TYPE_SIZE(double CMAKE_SIZEOF_DOUBLE)
include (CheckIncludeFile)
CHECK_INCLUDE_FILE("limits.h" CMAKE_HAVE_LIMITS_H)
CHECK_INCLUDE_FILE("unistd.h" CMAKE_HAVE_UNISTD_H)
CHECK_INCLUDE_FILE("pthread.h" CMAKE_HAVE_PTHREAD_H)
include (CheckIncludeFiles)
CHECK_INCLUDE_FILES("sys/types.h;sys/prctl.h" CMAKE_HAVE_SYS_PRCTL_H)
include (TestBigEndian)
TEST_BIG_ENDIAN(CMAKE_WORDS_BIGENDIAN)
include (FindX11)
if("${X11_X11_INCLUDE_PATH}" STREQUAL "/usr/include")
set (CMAKE_X_CFLAGS "" CACHE STRING "X11 extra flags.")
else()
set (CMAKE_X_CFLAGS "-I${X11_X11_INCLUDE_PATH}" CACHE STRING
"X11 extra flags.")
endif()
set (CMAKE_X_LIBS "${X11_LIBRARIES}" CACHE STRING
"Libraries and options used in X11 programs.")
set (CMAKE_HAS_X "${X11_FOUND}" CACHE INTERNAL "Is X11 around.")
include (FindThreads)
set (CMAKE_THREAD_LIBS "${CMAKE_THREAD_LIBS_INIT}" CACHE STRING
"Thread library used.")
set (CMAKE_USE_PTHREADS "${CMAKE_USE_PTHREADS_INIT}" CACHE BOOL
"Use the pthreads library.")
set (CMAKE_USE_WIN32_THREADS "${CMAKE_USE_WIN32_THREADS_INIT}" CACHE BOOL
"Use the win32 thread library.")
set (CMAKE_HP_PTHREADS ${CMAKE_HP_PTHREADS_INIT} CACHE BOOL
"Use HP pthreads.")
set (CMAKE_USE_SPROC ${CMAKE_USE_SPROC_INIT} CACHE BOOL
"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()
mark_as_advanced(
CMAKE_HP_PTHREADS
CMAKE_THREAD_LIBS
CMAKE_USE_PTHREADS
CMAKE_USE_SPROC
CMAKE_USE_WIN32_THREADS
CMAKE_X_CFLAGS
CMAKE_X_LIBS
)
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