https://github.com/Kitware/CMake
Tip revision: 31f835410efeea50acd43512eb9e5646a26ea177 authored by Brad King on 13 September 2022, 13:53:22 UTC
CMake 3.24.2
CMake 3.24.2
Tip revision: 31f8354
CMakeBackwardCompatibilityC.cmake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
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.")
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_WIN32_THREADS
CMAKE_X_CFLAGS
CMAKE_X_LIBS
)