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CMake/Modules/CMakeTestCXXCompiler.cmake

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Simplify CMake per-source license notices Per-source copyright/license notice headers that spell out copyright holder names and years are hard to maintain and often out-of-date or plain wrong. Precise contributor information is already maintained automatically by the version control tool. Ultimately it is the receiver of a file who is responsible for determining its licensing status, and per-source notices are merely a convenience. Therefore it is simpler and more accurate for each source to have a generic notice of the license name and references to more detailed information on copyright holders and full license terms. Our `Copyright.txt` file now contains a list of Contributors whose names appeared source-level copyright notices. It also references version control history for more precise information. Therefore we no longer need to spell out the list of Contributors in each source file notice. Replace CMake per-source copyright/license notice headers with a short description of the license and links to `Copyright.txt` and online information available from "https://cmake.org/licensing". The online URL also handles cases of modules being copied out of our source into other projects, so we can drop our notices about replacing links with full license text. Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority of the replacements mechanically. Manually fix up shebang lines and trailing newlines in a few files. Manually update the notices in a few files that the script does not handle.
2016-09-27 22:01:08 +03:00
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
ENH: add documentation support for modules
2005-12-14 21:51:08 +03:00
Convert CMake non-find modules to BSD License This adds copyright/license notification blocks CMake's non-find modules. Most of the modules had no notices at all. Some had notices referring to the BSD license already. This commit normalizes existing notices and adds missing notices.
2009-09-28 19:46:51 +04:00
Move CMAKE_<LANG>_COMPILER_WORKS to compiler information files Since the parent commit this test result is specific to the version of CMake. Store it in the version-specific compiler information files instead of CMakeCache.txt so testing can be re-done to meet the requirements of the current version of CMake even if another version of CMake was already used to configure the build tree.
2012-08-24 17:10:34 +04:00
if(CMAKE_CXX_COMPILER_FORCED)
# The compiler configuration was forced by the user.
# Assume the user has configured all compiler information.
set(CMAKE_CXX_COMPILER_WORKS TRUE)
return()
endif()
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
include(CMakeTestCompilerCommon)
Make a common function that prints the status during the checks for working compilers. Call it from all of the CMakeTesten_US.UTF-8Compiler.cmake files. In the message, print the full path to the tested compiler only for the Makefile generators. For Xcode and Visual Studio generators, print the generator instead so that users are not misled with the full path to a compiler that the generator may not even use. Xcode and Visual Studio have their own mechanisms for choosing the compiler to use during try_compile and build...
2010-02-12 22:32:20 +03:00
Move CMAKE_<LANG>_COMPILER_WORKS to compiler information files Since the parent commit this test result is specific to the version of CMake. Store it in the version-specific compiler information files instead of CMakeCache.txt so testing can be re-done to meet the requirements of the current version of CMake even if another version of CMake was already used to configure the build tree.
2012-08-24 17:10:34 +04:00
# Remove any cached result from an older CMake version.
# We now store this in CMakeCXXCompiler.cmake.
unset(CMAKE_CXX_COMPILER_WORKS CACHE)
add a fatal error, and make sure c and c++ compilers work before using them
2003-01-21 20:50:48 +03:00
# This file is used by EnableLanguage in cmGlobalGenerator to
# determine that that selected C++ compiler can actually compile
ERR: Fixed typo in comment.
2003-08-28 00:02:37 +04:00
# and link the most basic of programs. If not, a fatal error
add a fatal error, and make sure c and c++ compilers work before using them
2003-01-21 20:50:48 +03:00
# is set and cmake stops processing commands and will not generate
# any makefiles or projects.
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
if(NOT CMAKE_CXX_COMPILER_WORKS)
Make a common function that prints the status during the checks for working compilers. Call it from all of the CMakeTesten_US.UTF-8Compiler.cmake files. In the message, print the full path to the tested compiler only for the Makefile generators. For Xcode and Visual Studio generators, print the generator instead so that users are not misled with the full path to a compiler that the generator may not even use. Xcode and Visual Studio have their own mechanisms for choosing the compiler to use during try_compile and build...
2010-02-12 22:32:20 +03:00
PrintTestCompilerStatus("CXX" "")
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
file(WRITE ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testCXXCompiler.cxx
ENH: make sure the c++ compiler is a c++ compiler
2004-10-11 19:55:39 +04:00
"#ifndef __cplusplus\n"
"# error \"The CMAKE_CXX_COMPILER is set to a C compiler\"\n"
"#endif\n"
"int main(){return 0;}\n")
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
try_compile(CMAKE_CXX_COMPILER_WORKS ${CMAKE_BINARY_DIR}
ENH: centralized locaiton of CMakeFiles setting
2006-06-14 20:28:32 +04:00
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testCXXCompiler.cxx
Avoid clobbering variable 'OUTPUT' in compiler tests (#12628) Use an obscure name and clean up afterwards.
2011-12-15 17:29:43 +04:00
OUTPUT_VARIABLE __CMAKE_CXX_COMPILER_OUTPUT)
Move CMAKE_<LANG>_COMPILER_WORKS to compiler information files Since the parent commit this test result is specific to the version of CMake. Store it in the version-specific compiler information files instead of CMakeCache.txt so testing can be re-done to meet the requirements of the current version of CMake even if another version of CMake was already used to configure the build tree.
2012-08-24 17:10:34 +04:00
# Move result from cache to normal variable.
set(CMAKE_CXX_COMPILER_WORKS ${CMAKE_CXX_COMPILER_WORKS})
unset(CMAKE_CXX_COMPILER_WORKS CACHE)
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
set(CXX_TEST_WAS_RUN 1)
Remove CMake-language block-end command arguments Ancient versions of CMake required else(), endif(), and similar block termination commands to have arguments matching the command starting the block. This is no longer the preferred style. Run the following shell code: for c in else endif endforeach endfunction endmacro endwhile; do echo 's/\b'"$c"'\(\s*\)(.\+)/'"$c"'\1()/' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | egrep -z -v 'Tests/CMakeTests/While-Endwhile-' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:50:14 +04:00
endif()
BUG#411: Re-ordering statements so errors show up in CMakeError.log.
2003-12-01 21:06:35 +03:00
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
if(NOT CMAKE_CXX_COMPILER_WORKS)
Make a common function that prints the status during the checks for working compilers. Call it from all of the CMakeTesten_US.UTF-8Compiler.cmake files. In the message, print the full path to the tested compiler only for the Makefile generators. For Xcode and Visual Studio generators, print the generator instead so that users are not misled with the full path to a compiler that the generator may not even use. Xcode and Visual Studio have their own mechanisms for choosing the compiler to use during try_compile and build...
2010-02-12 22:32:20 +03:00
PrintTestCompilerStatus("CXX" " -- broken")
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
BUG#411: Re-ordering statements so errors show up in CMakeError.log.
2003-12-01 21:06:35 +03:00
"Determining if the CXX compiler works failed with "
Avoid clobbering variable 'OUTPUT' in compiler tests (#12628) Use an obscure name and clean up afterwards.
2011-12-15 17:29:43 +04:00
"the following output:\n${__CMAKE_CXX_COMPILER_OUTPUT}\n\n")
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
message(FATAL_ERROR "The C++ compiler \"${CMAKE_CXX_COMPILER}\" "
ERR: Fixed typeo tests->test.
2003-08-05 01:08:41 +04:00
"is not able to compile a simple test program.\nIt fails "
Avoid clobbering variable 'OUTPUT' in compiler tests (#12628) Use an obscure name and clean up afterwards.
2011-12-15 17:29:43 +04:00
"with the following output:\n ${__CMAKE_CXX_COMPILER_OUTPUT}\n\n"
ENH: Replace WRITE_FILE with FILE(WRITE and FILE(APPEND. Replace MAKE_DIRECTORY with FILE(MAKE_DIRECTORY, replace STRING(ASCII things
2003-07-11 22:14:03 +04:00
"CMake will not be able to correctly generate this project.")
Remove CMake-language block-end command arguments Ancient versions of CMake required else(), endif(), and similar block termination commands to have arguments matching the command starting the block. This is no longer the preferred style. Run the following shell code: for c in else endif endforeach endfunction endmacro endwhile; do echo 's/\b'"$c"'\(\s*\)(.\+)/'"$c"'\1()/' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | egrep -z -v 'Tests/CMakeTests/While-Endwhile-' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:50:14 +04:00
else()
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
if(CXX_TEST_WAS_RUN)
Make a common function that prints the status during the checks for working compilers. Call it from all of the CMakeTesten_US.UTF-8Compiler.cmake files. In the message, print the full path to the tested compiler only for the Makefile generators. For Xcode and Visual Studio generators, print the generator instead so that users are not misled with the full path to a compiler that the generator may not even use. Xcode and Visual Studio have their own mechanisms for choosing the compiler to use during try_compile and build...
2010-02-12 22:32:20 +03:00
PrintTestCompilerStatus("CXX" " -- works")
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
ENH: stuff to keep compiler tests from re-running all the time
2005-01-20 20:30:03 +03:00
"Determining if the CXX compiler works passed with "
Avoid clobbering variable 'OUTPUT' in compiler tests (#12628) Use an obscure name and clean up afterwards.
2011-12-15 17:29:43 +04:00
"the following output:\n${__CMAKE_CXX_COMPILER_OUTPUT}\n\n")
Remove CMake-language block-end command arguments Ancient versions of CMake required else(), endif(), and similar block termination commands to have arguments matching the command starting the block. This is no longer the preferred style. Run the following shell code: for c in else endif endforeach endfunction endmacro endwhile; do echo 's/\b'"$c"'\(\s*\)(.\+)/'"$c"'\1()/' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | egrep -z -v 'Tests/CMakeTests/While-Endwhile-' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:50:14 +04:00
endif()
ENH: Generalize the check for sizeof void* to detect more ABI information.
2008-01-22 02:30:17 +03:00
Move CMAKE_<LANG>_COMPILER_WORKS to compiler information files Since the parent commit this test result is specific to the version of CMake. Store it in the version-specific compiler information files instead of CMakeCache.txt so testing can be re-done to meet the requirements of the current version of CMake even if another version of CMake was already used to configure the build tree.
2012-08-24 17:10:34 +04:00
# Try to identify the ABI and configure it into CMakeCXXCompiler.cmake
include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerABI.cmake)
CMAKE_DETERMINE_COMPILER_ABI(CXX ${CMAKE_ROOT}/Modules/CMakeCXXCompilerABI.cpp)
project: Add infrastructure for recording CXX compiler features Add a feature test using the compiler macros and the preprocessor to determine available features. Add a CMAKE_CXX_COMPILE_FEATURES variable which contains all features known to the loaded compiler, and a CMAKE_CXX_KNOWN_FEATURES variable containing all features known to CMake. Add language standard specific variables for internal use to determine the standard-specific compile flags to use. This will be extended to other languages in the future. Follow-up commits will add features which will be recorded by the feature test.
2013-10-17 13:47:29 +04:00
# Try to identify the compiler features
include(${CMAKE_ROOT}/Modules/CMakeDetermineCompileFeatures.cmake)
CMAKE_DETERMINE_COMPILE_FEATURES(CXX)
Move CMAKE_<LANG>_COMPILER_WORKS to compiler information files Since the parent commit this test result is specific to the version of CMake. Store it in the version-specific compiler information files instead of CMakeCache.txt so testing can be re-done to meet the requirements of the current version of CMake even if another version of CMake was already used to configure the build tree.
2012-08-24 17:10:34 +04:00
# Re-configure to save learned information.
configure_file(
${CMAKE_ROOT}/Modules/CMakeCXXCompiler.cmake.in
${CMAKE_PLATFORM_INFO_DIR}/CMakeCXXCompiler.cmake
Drop use of configure_file IMMEDIATE option Since commit 7d47c693 (Drop compatibility with CMake < 2.4, 2013-10-08) we no longer need to use the configure_file IMMEDIATE option to support compatibility modes less than 2.0.
2013-11-13 12:50:56 +04:00
@ONLY
Move CMAKE_<LANG>_COMPILER_WORKS to compiler information files Since the parent commit this test result is specific to the version of CMake. Store it in the version-specific compiler information files instead of CMakeCache.txt so testing can be re-done to meet the requirements of the current version of CMake even if another version of CMake was already used to configure the build tree.
2012-08-24 17:10:34 +04:00
)
include(${CMAKE_PLATFORM_INFO_DIR}/CMakeCXXCompiler.cmake)
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
if(CMAKE_CXX_SIZEOF_DATA_PTR)
foreach(f ${CMAKE_CXX_ABI_FILES})
include(${f})
endforeach()
unset(CMAKE_CXX_ABI_FILES)
endif()
Remove CMake-language block-end command arguments Ancient versions of CMake required else(), endif(), and similar block termination commands to have arguments matching the command starting the block. This is no longer the preferred style. Run the following shell code: for c in else endif endforeach endfunction endmacro endwhile; do echo 's/\b'"$c"'\(\s*\)(.\+)/'"$c"'\1()/' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | egrep -z -v 'Tests/CMakeTests/While-Endwhile-' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:50:14 +04:00
endif()
Avoid clobbering variable 'OUTPUT' in compiler tests (#12628) Use an obscure name and clean up afterwards.
2011-12-15 17:29:43 +04:00
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
unset(__CMAKE_CXX_COMPILER_OUTPUT)