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libarchive: Backport to CMake 2.8.2
Avoid requiring CMake 2.8.6 for CMakePushCheckState or CMake 2.8.8 for CMakeExpandImportedTargets. Drop the custom versions of CMake modules CheckCSource(Compiles|Runs) because we do not use the SAFESEH option anyway.
This commit is contained in:
Brad King
parent
b81a4e1568
commit
26fe7e3adf
@ -1,6 +1,3 @@
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#
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CMAKE_MINIMUM_REQUIRED(VERSION 2.8.6 FATAL_ERROR)
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#
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PROJECT(libarchive C)
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#
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SET(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/build/cmake")
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@ -48,7 +45,7 @@ SET(SOVERSION "${INTERFACE_VERSION}")
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# Enalbe CMAKE_PUSH_CHECK_STATE() and CMAKE_POP_CHECK_STATE() macros
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# saving and restoring the state of the variables.
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INCLUDE(CMakePushCheckState)
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INCLUDE(${CMake_SOURCE_DIR}/Modules/CMakePushCheckState.cmake)
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# Initialize the state of the variables. This initialization is not
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# necessary but this shows you what value the variables initially have.
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@ -90,8 +87,8 @@ IF("${CMAKE_C_PLATFORM_ID}" MATCHES "^(HP-UX)$")
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ENDIF()
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#
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INCLUDE(LibarchiveCheckCSourceCompiles)
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INCLUDE(LibarchiveCheckCSourceRuns)
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INCLUDE(CheckCSourceCompiles)
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INCLUDE(CheckCSourceRuns)
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INCLUDE(CheckFileOffsetBits)
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INCLUDE(CheckFuncs)
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INCLUDE(CheckHeaderDirent)
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@ -155,9 +152,9 @@ MACRO (TRY_MACRO_FOR_LIBRARY INCLUDES LIBRARIES
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ENDIF(NOT "${PREV_VAR_WITH_LIB}" STREQUAL "${LIBRARIES}")
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# Check if the library can be used with the macro.
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IF("${TRY_TYPE}" MATCHES "COMPILES")
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LIBARCHIVE_CHECK_C_SOURCE_COMPILES("${SAMPLE_SOURCE}" ${VAR})
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CHECK_C_SOURCE_COMPILES("${SAMPLE_SOURCE}" ${VAR})
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ELSEIF("${TRY_TYPE}" MATCHES "RUNS")
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LIBARCHIVE_CHECK_C_SOURCE_RUNS("${SAMPLE_SOURCE}" ${VAR})
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CHECK_C_SOURCE_RUNS("${SAMPLE_SOURCE}" ${VAR})
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ELSE("${TRY_TYPE}" MATCHES "COMPILES")
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MESSAGE(FATAL_ERROR "UNKNOWN KEYWORD \"${TRY_TYPE}\" FOR TRY_TYPE")
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ENDIF("${TRY_TYPE}" MATCHES "COMPILES")
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@ -338,7 +335,7 @@ LA_CHECK_INCLUDE_FILE("dlfcn.h" HAVE_DLFCN_H)
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LA_CHECK_INCLUDE_FILE("errno.h" HAVE_ERRNO_H)
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LA_CHECK_INCLUDE_FILE("ext2fs/ext2_fs.h" HAVE_EXT2FS_EXT2_FS_H)
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LIBARCHIVE_CHECK_C_SOURCE_COMPILES("#include <sys/ioctl.h>
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CHECK_C_SOURCE_COMPILES("#include <sys/ioctl.h>
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#include <ext2fs/ext2_fs.h>
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int main(void) { return EXT2_IOC_GETFLAGS; }" HAVE_WORKING_EXT2_IOC_GETFLAGS)
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@ -401,7 +398,7 @@ FOREACH (it ${_HEADER})
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SET(_INCLUDE_FILES "${_INCLUDE_FILES}#include <${it}>\n")
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ENDFOREACH (it)
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LIBARCHIVE_CHECK_C_SOURCE_COMPILES(
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CHECK_C_SOURCE_COMPILES(
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"#define __EXTENSIONS__ 1
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${_INCLUDE_FILES}
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int main() { return 0;}"
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@ -662,7 +659,7 @@ MACRO(CHECK_ICONV LIB TRY_ICONV_CONST)
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SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} /WX")
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ENDIF (MSVC)
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#
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LIBARCHIVE_CHECK_C_SOURCE_COMPILES(
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CHECK_C_SOURCE_COMPILES(
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"#include <stdlib.h>
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#include <iconv.h>
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int main() {
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@ -922,14 +919,14 @@ CMAKE_POP_CHECK_STATE() # Restore the state of the variables
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# Make sure we have the POSIX version of readdir_r, not the
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# older 2-argument version.
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LIBARCHIVE_CHECK_C_SOURCE_COMPILES(
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CHECK_C_SOURCE_COMPILES(
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"#include <dirent.h>\nint main() {DIR *d = opendir(\".\"); struct dirent e,*r; return readdir_r(d,&e,&r);}"
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HAVE_READDIR_R)
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# Only detect readlinkat() if we also have AT_FDCWD in unistd.h.
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# NOTE: linux requires fcntl.h for AT_FDCWD.
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LIBARCHIVE_CHECK_C_SOURCE_COMPILES(
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CHECK_C_SOURCE_COMPILES(
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"#include <fcntl.h>\n#include <unistd.h>\nint main() {char buf[10]; return readlinkat(AT_FDCWD, \"\", buf, 0);}"
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HAVE_READLINKAT)
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@ -938,10 +935,10 @@ LIBARCHIVE_CHECK_C_SOURCE_COMPILES(
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# of interest and verify that the result can be linked.
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# CHECK_FUNCTION_EXISTS doesn't accept a header argument,
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# CHECK_SYMBOL_EXISTS doesn't test linkage.
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LIBARCHIVE_CHECK_C_SOURCE_COMPILES(
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CHECK_C_SOURCE_COMPILES(
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"#include <sys/mkdev.h>\nint main() { return major(256); }"
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MAJOR_IN_MKDEV)
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LIBARCHIVE_CHECK_C_SOURCE_COMPILES(
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CHECK_C_SOURCE_COMPILES(
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"#include <sys/sysmacros.h>\nint main() { return major(256); }"
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MAJOR_IN_SYSMACROS)
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@ -1,106 +0,0 @@
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# - Check if given C source compiles and links into an executable
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# CHECK_C_SOURCE_COMPILES(<code> <var> [FAIL_REGEX <fail-regex>])
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# <code> - source code to try to compile, must define 'main'
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# <var> - variable to store whether the source code compiled
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# <fail-regex> - fail if test output matches this regex
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# The following variables may be set before calling this macro to
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# modify the way the check is run:
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#
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# CMAKE_REQUIRED_FLAGS = string of compile command line flags
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# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
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# CMAKE_REQUIRED_INCLUDES = list of include directories
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# CMAKE_REQUIRED_LIBRARIES = list of libraries to link
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#=============================================================================
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# Copyright 2005-2009 Kitware, Inc.
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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#
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# Extra arguments added by libarchive
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# CMAKE_REQUIRED_LINKER_FLAGS = string of linker command line flags
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#
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include(CMakeExpandImportedTargets)
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macro(LIBARCHIVE_CHECK_C_SOURCE_COMPILES SOURCE VAR)
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if("${VAR}" MATCHES "^${VAR}$")
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set(_FAIL_REGEX)
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set(_key)
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foreach(arg ${ARGN})
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if("${arg}" MATCHES "^(FAIL_REGEX)$")
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set(_key "${arg}")
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elseif(_key)
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list(APPEND _${_key} "${arg}")
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else()
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message(FATAL_ERROR "Unknown argument:\n ${arg}\n")
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endif()
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endforeach()
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set(MACRO_CHECK_FUNCTION_DEFINITIONS
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"-D${VAR} ${CMAKE_REQUIRED_FLAGS}")
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if(CMAKE_REQUIRED_LIBRARIES)
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# this one translates potentially used imported library targets to their files on disk
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CMAKE_EXPAND_IMPORTED_TARGETS(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
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set(CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES
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"-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}")
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else()
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set(CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES)
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endif()
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if(CMAKE_REQUIRED_INCLUDES)
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set(CHECK_C_SOURCE_COMPILES_ADD_INCLUDES
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"-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}")
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else()
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set(CHECK_C_SOURCE_COMPILES_ADD_INCLUDES)
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endif()
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if(CMAKE_REQUIRED_LINKER_FLAGS)
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set(CHECK_C_SOURCE_COMPILES_ADD_LINKER_FLAGS
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"-DCMAKE_EXE_LINKER_FLAGS:STRING=${CMAKE_REQUIRED_LINKER_FLAGS} -DCMAKE_SHARED_LINKER_FLAGS:STRING=${CMAKE_REQUIRED_LINKER_FLAGS} -DCMAKE_MODULE_LINKER_FLAGS:STRING=${CMAKE_REQUIRED_LINKER_FLAGS}")
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else()
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set(CHECK_C_SOURCE_COMPILES_ADD_LINKER_FLAGS)
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endif()
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file(WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.c"
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"${SOURCE}\n")
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message(STATUS "Performing Test ${VAR}")
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try_compile(${VAR}
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${CMAKE_BINARY_DIR}
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.c
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COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
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CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS} ${CHECK_C_SOURCE_COMPILES_ADD_LINKER_FLAGS}
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"${CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES}"
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"${CHECK_C_SOURCE_COMPILES_ADD_INCLUDES}"
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OUTPUT_VARIABLE OUTPUT)
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foreach(_regex ${_FAIL_REGEX})
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if("${OUTPUT}" MATCHES "${_regex}")
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set(${VAR} 0)
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endif()
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endforeach()
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if(${VAR})
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set(${VAR} 1 CACHE INTERNAL "Test ${VAR}")
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message(STATUS "Performing Test ${VAR} - Success")
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Performing C SOURCE FILE Test ${VAR} succeded with the following output:\n"
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"${OUTPUT}\n"
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"Source file was:\n${SOURCE}\n")
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else()
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message(STATUS "Performing Test ${VAR} - Failed")
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set(${VAR} "" CACHE INTERNAL "Test ${VAR}")
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Performing C SOURCE FILE Test ${VAR} failed with the following output:\n"
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"${OUTPUT}\n"
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"Source file was:\n${SOURCE}\n")
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endif()
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endif()
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endmacro()
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@ -1,102 +0,0 @@
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# - Check if the given C source code compiles and runs.
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# CHECK_C_SOURCE_RUNS(<code> <var>)
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# <code> - source code to try to compile
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# <var> - variable to store the result
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# (1 for success, empty for failure)
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# The following variables may be set before calling this macro to
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# modify the way the check is run:
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#
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# CMAKE_REQUIRED_FLAGS = string of compile command line flags
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# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
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# CMAKE_REQUIRED_INCLUDES = list of include directories
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# CMAKE_REQUIRED_LIBRARIES = list of libraries to link
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#=============================================================================
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# Copyright 2006-2009 Kitware, Inc.
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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#
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# Extra arguments added by libarchive
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# CMAKE_REQUIRED_LINKER_FLAGS = string of linker command line flags
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#
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include(CMakeExpandImportedTargets)
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macro(LIBARCHIVE_CHECK_C_SOURCE_RUNS SOURCE VAR)
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if("${VAR}" MATCHES "^${VAR}$")
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set(MACRO_CHECK_FUNCTION_DEFINITIONS
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"-D${VAR} ${CMAKE_REQUIRED_FLAGS}")
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if(CMAKE_REQUIRED_LIBRARIES)
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# this one translates potentially used imported library targets to their files on disk
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CMAKE_EXPAND_IMPORTED_TARGETS(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
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set(CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES
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"-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}")
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else()
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set(CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES)
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endif()
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if(CMAKE_REQUIRED_INCLUDES)
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set(CHECK_C_SOURCE_COMPILES_ADD_INCLUDES
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"-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}")
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else()
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set(CHECK_C_SOURCE_COMPILES_ADD_INCLUDES)
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endif()
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if(CMAKE_REQUIRED_LINKER_FLAGS)
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set(CHECK_C_SOURCE_COMPILES_ADD_LINKER_FLAGS
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"-DCMAKE_EXE_LINKER_FLAGS:STRING=${CMAKE_REQUIRED_LINKER_FLAGS} -DCMAKE_SHARED_LINKER_FLAGS:STRING=${CMAKE_REQUIRED_LINKER_FLAGS} -DCMAKE_MODULE_LINKER_FLAGS:STRING=${CMAKE_REQUIRED_LINKER_FLAGS}")
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else()
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set(CHECK_C_SOURCE_COMPILES_ADD_LINKER_FLAGS)
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endif()
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file(WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.c"
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"${SOURCE}\n")
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message(STATUS "Performing Test ${VAR}")
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try_run(${VAR}_EXITCODE ${VAR}_COMPILED
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${CMAKE_BINARY_DIR}
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.c
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COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
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CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS} ${CHECK_C_SOURCE_COMPILES_ADD_LINKER_FLAGS}
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-DCMAKE_SKIP_RPATH:BOOL=${CMAKE_SKIP_RPATH}
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"${CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES}"
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"${CHECK_C_SOURCE_COMPILES_ADD_INCLUDES}"
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COMPILE_OUTPUT_VARIABLE OUTPUT)
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# if it did not compile make the return value fail code of 1
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if(NOT ${VAR}_COMPILED)
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set(${VAR}_EXITCODE 1)
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endif()
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# if the return value was 0 then it worked
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if("${${VAR}_EXITCODE}" EQUAL 0)
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set(${VAR} 1 CACHE INTERNAL "Test ${VAR}")
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message(STATUS "Performing Test ${VAR} - Success")
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Performing C SOURCE FILE Test ${VAR} succeded with the following output:\n"
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"${OUTPUT}\n"
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"Return value: ${${VAR}}\n"
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"Source file was:\n${SOURCE}\n")
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else()
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if(CMAKE_CROSSCOMPILING AND "${${VAR}_EXITCODE}" MATCHES "FAILED_TO_RUN")
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set(${VAR} "${${VAR}_EXITCODE}")
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else()
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set(${VAR} "" CACHE INTERNAL "Test ${VAR}")
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endif()
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message(STATUS "Performing Test ${VAR} - Failed")
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Performing C SOURCE FILE Test ${VAR} failed with the following output:\n"
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"${OUTPUT}\n"
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"Return value: ${${VAR}_EXITCODE}\n"
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"Source file was:\n${SOURCE}\n")
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endif()
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endif()
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endmacro()
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