kolan
/
CMake
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
CMake/Modules/CMakeDetermineCompilerABI.c...

128 lines
5.4 KiB
CMake
Raw Normal View History

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copyright/license notice headers that spell out copyright holder names and years are hard to maintain and often out-of-date or plain wrong.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: Generalize the check for sizeof void* to detect more ABI information.
2008-01-22 02:30:17 +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
ENH: Generalize the check for sizeof void* to detect more ABI information.
2008-01-22 02:30:17 +03:00
# Function to compile a source file to identify the compiler ABI.
# This is used internally by CMake and should not be included by user
# code.
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:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
include(${CMAKE_ROOT}/Modules/CMakeParseImplicitLinkInfo.cmake)
ENH: Implicit link info for C, CXX, and Fortran This teaches CMake to detect implicit link information for C, C++, and Fortran compilers. We detect the implicit linker search directories and implicit linker options for UNIX-like environments using verbose output from compiler front-ends. We store results in new variables called CMAKE_<LANG>_IMPLICIT_LINK_LIBRARIES CMAKE_<LANG>_IMPLICIT_LINK_DIRECTORIES The implicit libraries can contain linker flags as well as library names.
2009-07-23 18:07:25 +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:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
function(CMAKE_DETERMINE_COMPILER_ABI lang src)
Store ABI detection results in compiler information files Drop use of cache entry CMAKE_DETERMINE_<LANG>_ABI_COMPILED and replace it with variable CMAKE_<LANG>_ABI_COMPILED. Since the grandparent commit this test result is specific to the version of CMake. Store it in the version-specific compiler information files instead of CMakeCache.txt so testing can be re-done to meet the requirements of the current version of CMake even if another version of CMake was already used to configure the build tree.
2012-08-24 23:15:14 +04:00
if(NOT DEFINED CMAKE_${lang}_ABI_COMPILED)
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(STATUS "Detecting ${lang} compiler ABI info")
ENH: Generalize the check for sizeof void* to detect more ABI information.
2008-01-22 02:30:17 +03:00
# Compile the ABI identification source.
Make platform information files specific to the CMake version At the top of a build tree we configure inside the CMakeFiles directory files such as "CMakeSystem.cmake" and "CMake<lang>Compiler.cmake" to save information detected about the system and compilers in use. The method of detection and the exact results store varies across CMake versions as things improve. This leads to problems when loading files configured by a different version of CMake. Previously we ignored such existing files only if the major.minor part of the CMake version component changed, and depended on the CMakeCache.txt to tell us the last version of CMake that wrote the files. This led to problems if the user deletes the CMakeCache.txt or we add required information to the files in a patch-level release of CMake (still a "feature point" release by modern CMake versioning convention). Ensure that we always have version-consistent platform information files by storing them in a subdirectory named with the CMake version. Every version of CMake will do its own system and compiler identification checks even when a build tree has already been configured by another version of CMake. Stored results will not clobber those from other versions of CMake which may be run again on the same tree in the future. Loaded results will match what the system and language modules expect. Rename the undocumented variable CMAKE_PLATFORM_ROOT_BIN to CMAKE_PLATFORM_INFO_DIR to clarify its purpose. The new variable points at the version-specific directory while the old variable did not.
2012-08-24 16:48:59 +04:00
set(BIN "${CMAKE_PLATFORM_INFO_DIR}/CMakeDetermineCompilerABI_${lang}.bin")
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
set(CMAKE_FLAGS )
if(DEFINED CMAKE_${lang}_VERBOSE_FLAG)
CMakeDetermineCompilerABI: Use normal linker flags in ABI project When compiling the ABI detection test project, do not override CMAKE_EXE_LINKER_FLAGS completely. The normally selected value of this variable may influence how the link is done and may be needed to be representative of how the calling project will be built. Instead pass a variable that try_compile will reference as additional flags. Leave this behavior of try_compile undocumented for now.
2014-12-03 22:52:05 +03:00
set(CMAKE_FLAGS "-DEXE_LINKER_FLAGS=${CMAKE_${lang}_VERBOSE_FLAG}")
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:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
endif()
CMakeDetermineCompilerABI: Link with standard libraries on MSVC In commit v2.8.0~395 (Implicit link info for C, CXX, and Fortran, 2009-07-23) we added a '-DCMAKE_${lang}_STANDARD_LIBRARIES=' flag to the try_compile used to build the ABI detection project. It is needed when detecting the implicit libraries added by the GNU compiler on Windows (MinGW tools) to avoid contaminating the list with standard Windows libraries. However, with MSVC we do not detect such implicit link libraries anyway, and for some target platforms (e.g. Windows Phone) we may need the standard libraries to link the ABI detection executable. Drop the flag when detecting the ABI using MSVC.
2014-08-19 17:04:25 +04:00
if(NOT "x${CMAKE_${lang}_COMPILER_ID}" STREQUAL "xMSVC")
# Avoid adding our own platform standard libraries for compilers
# from which we might detect implicit link libraries.
list(APPEND CMAKE_FLAGS "-DCMAKE_${lang}_STANDARD_LIBRARIES=")
endif()
Store ABI detection results in compiler information files Drop use of cache entry CMAKE_DETERMINE_<LANG>_ABI_COMPILED and replace it with variable CMAKE_<LANG>_ABI_COMPILED. Since the grandparent commit this test result is specific to the version of CMake. Store it in the version-specific compiler information files instead of CMakeCache.txt so testing can be re-done to meet the requirements of the current version of CMake even if another version of CMake was already used to configure the build tree.
2012-08-24 23:15:14 +04:00
try_compile(CMAKE_${lang}_ABI_COMPILED
ENH: Generalize the check for sizeof void* to detect more ABI information.
2008-01-22 02:30:17 +03:00
${CMAKE_BINARY_DIR} ${src}
CMakeDetermineCompilerABI: Link with standard libraries on MSVC In commit v2.8.0~395 (Implicit link info for C, CXX, and Fortran, 2009-07-23) we added a '-DCMAKE_${lang}_STANDARD_LIBRARIES=' flag to the try_compile used to build the ABI detection project. It is needed when detecting the implicit libraries added by the GNU compiler on Windows (MinGW tools) to avoid contaminating the list with standard Windows libraries. However, with MSVC we do not detect such implicit link libraries anyway, and for some target platforms (e.g. Windows Phone) we may need the standard libraries to link the ABI detection executable. Drop the flag when detecting the ABI using MSVC.
2014-08-19 17:04:25 +04:00
CMAKE_FLAGS ${CMAKE_FLAGS}
# Ignore unused flags when we are just determining the ABI.
Ignore CLI warnings for ABI determination
2010-09-17 01:49:37 +04:00
"--no-warn-unused-cli"
ENH: Generalize the check for sizeof void* to detect more ABI information.
2008-01-22 02:30:17 +03:00
OUTPUT_VARIABLE OUTPUT
COPY_FILE "${BIN}"
Teach compiler ABI check to tolerate try_compile COPY_FILE failure In CMakeDetermineCompilerABI we use try_compile with the COPY_FILE option to get a copy of the compiled binary used to detect the ABI information. We already tolerate the case when compilation fails. However, when compilation appears to succeed but does not produce the expected executable the try_compile command immediately reports an error because the COPY_FILE fails. Tolerate COPY_FILE failure without stopping the overall configuration process by using the try_compile COPY_FILE_ERROR option to capture the error message. Log the full error to CMakeError.log and simply report failure to detect the ABI as if compilation had failed. Teach the RunCMake.Configure test to cover this case and verify that the messages show up as expected both in stdout and in CMakeError.log.
2013-07-17 22:56:40 +04:00
COPY_FILE_ERROR _copy_error
ENH: Generalize the check for sizeof void* to detect more ABI information.
2008-01-22 02:30:17 +03:00
)
Store ABI detection results in compiler information files Drop use of cache entry CMAKE_DETERMINE_<LANG>_ABI_COMPILED and replace it with variable CMAKE_<LANG>_ABI_COMPILED. Since the grandparent 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 23:15:14 +04:00
# Move result from cache to normal variable.
set(CMAKE_${lang}_ABI_COMPILED ${CMAKE_${lang}_ABI_COMPILED})
unset(CMAKE_${lang}_ABI_COMPILED CACHE)
set(CMAKE_${lang}_ABI_COMPILED ${CMAKE_${lang}_ABI_COMPILED} PARENT_SCOPE)
ENH: Generalize the check for sizeof void* to detect more ABI information.
2008-01-22 02:30:17 +03:00
# Load the resulting information strings.
Teach compiler ABI check to tolerate try_compile COPY_FILE failure In CMakeDetermineCompilerABI we use try_compile with the COPY_FILE option to get a copy of the compiled binary used to detect the ABI information. We already tolerate the case when compilation fails. However, when compilation appears to succeed but does not produce the expected executable the try_compile command immediately reports an error because the COPY_FILE fails. Tolerate COPY_FILE failure without stopping the overall configuration process by using the try_compile COPY_FILE_ERROR option to capture the error message. Log the full error to CMakeError.log and simply report failure to detect the ABI as if compilation had failed. Teach the RunCMake.Configure test to cover this case and verify that the messages show up as expected both in stdout and in CMakeError.log.
2013-07-17 22:56:40 +04:00
if(CMAKE_${lang}_ABI_COMPILED AND NOT _copy_error)
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(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(STATUS "Detecting ${lang} compiler ABI info - done")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
ENH: Clarify message about checking for compiler ABI information.
2008-04-14 23:25:57 +04:00
"Detecting ${lang} compiler ABI info compiled with the following output:\n${OUTPUT}\n\n")
Use a more reliable regex for extracting binary INFO strings A few different regular expressions were being used in various places to extract info strings from binaries. This uses a consistent regex amongst all of them now. This also fixes the broken ABI detection for Cray compilers.
2014-09-04 01:00:48 +04:00
file(STRINGS "${BIN}" ABI_STRINGS LIMIT_COUNT 2 REGEX "INFO:[A-Za-z0-9_]+\\[[^]]*\\]")
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(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
foreach(info ${ABI_STRINGS})
Remove .* expressions from beginning and end of MATCHES regexs All these expressions work the same: "foo" ".*foo.*" "^.*foo.*$" This assumes that the "Intel*" expressions were meant to be "Intel.*".
2014-04-11 20:17:46 +04:00
if("${info}" MATCHES "INFO:sizeof_dptr\\[0*([^]]*)\\]")
Clean up usage of if(... MATCHES regex) followed string(REGEX REPLACE regex) The matches have already been calculated and can simply be taken from CMAKE_MATCH_n variables. This avoids multiple compilations of the same or very similar regular expressions.
2014-04-06 23:30:00 +04:00
set(ABI_SIZEOF_DPTR "${CMAKE_MATCH_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"'\(\s*\)(.\+)/'"$c"'\1()/' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | egrep -z -v 'Tests/CMakeTests/While-Endwhile-' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:50:14 +04:00
endif()
Remove .* expressions from beginning and end of MATCHES regexs All these expressions work the same: "foo" ".*foo.*" "^.*foo.*$" This assumes that the "Intel*" expressions were meant to be "Intel.*".
2014-04-11 20:17:46 +04:00
if("${info}" MATCHES "INFO:abi\\[([^]]*)\\]")
Clean up usage of if(... MATCHES regex) followed string(REGEX REPLACE regex) The matches have already been calculated and can simply be taken from CMAKE_MATCH_n variables. This avoids multiple compilations of the same or very similar regular expressions.
2014-04-06 23:30:00 +04:00
set(ABI_NAME "${CMAKE_MATCH_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"'\(\s*\)(.\+)/'"$c"'\1()/' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | egrep -z -v 'Tests/CMakeTests/While-Endwhile-' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:50:14 +04:00
endif()
endforeach()
ENH: Generalize the check for sizeof void* to detect more ABI information.
2008-01-22 02:30:17 +03:00
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
if(ABI_SIZEOF_DPTR)
set(CMAKE_${lang}_SIZEOF_DATA_PTR "${ABI_SIZEOF_DPTR}" PARENT_SCOPE)
elseif(CMAKE_${lang}_SIZEOF_DATA_PTR_DEFAULT)
set(CMAKE_${lang}_SIZEOF_DATA_PTR "${CMAKE_${lang}_SIZEOF_DATA_PTR_DEFAULT}" PARENT_SCOPE)
Remove CMake-language block-end command arguments Ancient versions of CMake required else(), endif(), and similar block termination commands to have arguments matching the command starting the block. This is no longer the preferred style. Run the following shell code: for c in else endif endforeach endfunction endmacro endwhile; do echo 's/\b'"$c"'\(\s*\)(.\+)/'"$c"'\1()/' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | egrep -z -v 'Tests/CMakeTests/While-Endwhile-' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:50:14 +04:00
endif()
ENH: Generalize the check for sizeof void* to detect more ABI information.
2008-01-22 02:30:17 +03:00
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
if(ABI_NAME)
set(CMAKE_${lang}_COMPILER_ABI "${ABI_NAME}" PARENT_SCOPE)
Remove CMake-language block-end command arguments Ancient versions of CMake required else(), endif(), and similar block termination commands to have arguments matching the command starting the block. This is no longer the preferred style. Run the following shell code: for c in else endif endforeach endfunction endmacro endwhile; do echo 's/\b'"$c"'\(\s*\)(.\+)/'"$c"'\1()/' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | egrep -z -v 'Tests/CMakeTests/While-Endwhile-' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:50:14 +04:00
endif()
ENH: Generalize the check for sizeof void* to detect more ABI information.
2008-01-22 02:30:17 +03:00
ENH: Implicit link info for C, CXX, and Fortran This teaches CMake to detect implicit link information for C, C++, and Fortran compilers. We detect the implicit linker search directories and implicit linker options for UNIX-like environments using verbose output from compiler front-ends. We store results in new variables called CMAKE_<LANG>_IMPLICIT_LINK_LIBRARIES CMAKE_<LANG>_IMPLICIT_LINK_DIRECTORIES The implicit libraries can contain linker flags as well as library names.
2009-07-23 18:07:25 +04:00
# Parse implicit linker information for this language, if available.
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(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(implicit_dirs "")
set(implicit_libs "")
OS X: Detect implicit linker framework search paths Previously we hard-coded a list of implicit framework directories but did not account for CMAKE_OSX_SYSROOT or for changes to the list across OS X versions. Instead we should automatically detect the framework directories for the active toolchain. The parent commit added the "-Wl,-v" option to ask "ld" to print its implicit directories. It displays a block such as: Framework search paths: /... Parse this block to extract the list of framework directories. Detection may fail on toolchains that do not list their framework directories, such as older OS X linkers. Always treat the paths <sdk>/Library/Frameworks <sdk>/System/Library/Frameworks <sdk>/Network/Library/Frameworks # Older OS X only /System/Library/Frameworks as implicit. Note that /System/Library/Frameworks should always be considered implicit so that frameworks CMake finds there will not override the SDK copies.
2012-12-05 22:46:04 +04:00
set(implicit_fwks "")
OS X: Detect implicit link directories on modern toolchains We detect the implicit link directories for the toolchain by adding a flag to get verbose output from the compiler front-end while linking the ABI detection binary. Newer OS X toolchains based on Clang do not add the implicit link directories with -L options to their internal invocation of "ld". Instead they use a linker that comes with the toolchain and is already configured with the proper directories. Add the "-Wl,-v" option to ask "ld" to print its implicit directories. It displays them in a block such as: Library search paths: /... Parse this block to extract the implicit link directories. While at it, remove the checks introduced by commit efaf335b (Skip implicit link information on Xcode, 2009-07-23) and commit 5195a664 (Skip implicit link info for multiple OS X archs, 2009-09-22). Discard the non-system link directories added by Xcode. Discard all detected implicit libraries in the multi-architecture case but keep the directories. The directories are still useful without the libraries just to suppress addition of explicit -L options for them.
2012-12-05 20:49:13 +04:00
if(CMAKE_${lang}_VERBOSE_FLAG)
OS X: Detect implicit linker framework search paths Previously we hard-coded a list of implicit framework directories but did not account for CMAKE_OSX_SYSROOT or for changes to the list across OS X versions. Instead we should automatically detect the framework directories for the active toolchain. The parent commit added the "-Wl,-v" option to ask "ld" to print its implicit directories. It displays a block such as: Framework search paths: /... Parse this block to extract the list of framework directories. Detection may fail on toolchains that do not list their framework directories, such as older OS X linkers. Always treat the paths <sdk>/Library/Frameworks <sdk>/System/Library/Frameworks <sdk>/Network/Library/Frameworks # Older OS X only /System/Library/Frameworks as implicit. Note that /System/Library/Frameworks should always be considered implicit so that frameworks CMake finds there will not override the SDK copies.
2012-12-05 22:46:04 +04:00
CMAKE_PARSE_IMPLICIT_LINK_INFO("${OUTPUT}" implicit_libs implicit_dirs implicit_fwks log
Detect object files in implicit link information The NAG Fortran compiler implicitly passes object files by full path to the linker. Teach CMakeParseImplicitLinkInfo to parse object files that match some tool-specific regular expression.
2010-12-10 01:07:34 +03:00
"${CMAKE_${lang}_IMPLICIT_OBJECT_REGEX}")
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(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
Log implicit link information parsing actions This commit teaches the CMAKE_PARSE_IMPLICIT_LINK_INFO function to log its actions. We store the log in CMakeFiles/CMakeOutput.log at the top of the project build tree. This will make diagnosis of implicit link information parsing problems easier.
2009-10-06 23:16:12 +04:00
"Parsed ${lang} implicit link information from above output:\n${log}\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:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
endif()
For VS Intel Fortran IDE builds, add a check to find the Fortran library PATH. To use VS C and Fotran in the same solution, it is required that VS be able to find the Fortran run time libraries as they will be implicitly linked by any Fortran library used by VS C programs. This adds a check into CMakeDetermineCompilerABI using a try-compile to find the correct PATH.
2011-09-09 01:42:49 +04:00
# for VS IDE Intel Fortran we have to figure out the
# implicit link path for the fortran run time using
# a try-compile
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
if("${lang}" MATCHES "Fortran"
For VS Intel Fortran IDE builds, add a check to find the Fortran library PATH. To use VS C and Fotran in the same solution, it is required that VS be able to find the Fortran run time libraries as they will be implicitly linked by any Fortran library used by VS C programs. This adds a check into CMakeDetermineCompilerABI using a try-compile to find the correct PATH.
2011-09-09 01:42:49 +04:00
AND "${CMAKE_GENERATOR}" MATCHES "Visual Studio")
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
set(_desc "Determine Intel Fortran Compiler Implicit Link Path")
message(STATUS "${_desc}")
For VS Intel Fortran IDE builds, add a check to find the Fortran library PATH. To use VS C and Fotran in the same solution, it is required that VS be able to find the Fortran run time libraries as they will be implicitly linked by any Fortran library used by VS C programs. This adds a check into CMakeDetermineCompilerABI using a try-compile to find the correct PATH.
2011-09-09 01:42:49 +04:00
# Build a sample project which reports symbols.
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(IFORT_LIB_PATH_COMPILED
For VS Intel Fortran IDE builds, add a check to find the Fortran library PATH. To use VS C and Fotran in the same solution, it is required that VS be able to find the Fortran run time libraries as they will be implicitly linked by any Fortran library used by VS C programs. This adds a check into CMakeDetermineCompilerABI using a try-compile to find the correct PATH.
2011-09-09 01:42:49 +04:00
${CMAKE_BINARY_DIR}/CMakeFiles/IntelVSImplicitPath
Move IntelVSImplicitPath project to better location This project is not part of the FortranCInterface module. Make it a sibling instead of a child directory.
2011-09-14 21:49:40 +04:00
${CMAKE_ROOT}/Modules/IntelVSImplicitPath
For VS Intel Fortran IDE builds, add a check to find the Fortran library PATH. To use VS C and Fotran in the same solution, it is required that VS be able to find the Fortran run time libraries as they will be implicitly linked by any Fortran library used by VS C programs. This adds a check into CMakeDetermineCompilerABI using a try-compile to find the correct PATH.
2011-09-09 01:42:49 +04:00
IntelFortranImplicit
CMAKE_FLAGS
"-DCMAKE_Fortran_FLAGS:STRING=${CMAKE_Fortran_FLAGS}"
OUTPUT_VARIABLE _output)
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:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
file(WRITE
For VS Intel Fortran IDE builds, add a check to find the Fortran library PATH. To use VS C and Fotran in the same solution, it is required that VS be able to find the Fortran run time libraries as they will be implicitly linked by any Fortran library used by VS C programs. This adds a check into CMakeDetermineCompilerABI using a try-compile to find the correct PATH.
2011-09-09 01:42:49 +04:00
"${CMAKE_BINARY_DIR}/CMakeFiles/IntelVSImplicitPath/output.txt"
"${_output}")
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
include(${CMAKE_BINARY_DIR}/CMakeFiles/IntelVSImplicitPath/output.cmake OPTIONAL)
set(_desc "Determine Intel Fortran Compiler Implicit Link Path -- done")
message(STATUS "${_desc}")
endif()
For VS Intel Fortran IDE builds, add a check to find the Fortran library PATH. To use VS C and Fotran in the same solution, it is required that VS be able to find the Fortran run time libraries as they will be implicitly linked by any Fortran library used by VS C programs. This adds a check into CMakeDetermineCompilerABI using a try-compile to find the correct PATH.
2011-09-09 01:42:49 +04:00
OS X: Detect implicit link directories on modern toolchains We detect the implicit link directories for the toolchain by adding a flag to get verbose output from the compiler front-end while linking the ABI detection binary. Newer OS X toolchains based on Clang do not add the implicit link directories with -L options to their internal invocation of "ld". Instead they use a linker that comes with the toolchain and is already configured with the proper directories. Add the "-Wl,-v" option to ask "ld" to print its implicit directories. It displays them in a block such as: Library search paths: /... Parse this block to extract the implicit link directories. While at it, remove the checks introduced by commit efaf335b (Skip implicit link information on Xcode, 2009-07-23) and commit 5195a664 (Skip implicit link info for multiple OS X archs, 2009-09-22). Discard the non-system link directories added by Xcode. Discard all detected implicit libraries in the multi-architecture case but keep the directories. The directories are still useful without the libraries just to suppress addition of explicit -L options for them.
2012-12-05 20:49:13 +04:00
# Implicit link libraries cannot be used explicitly for multiple
# OS X architectures, so we skip it.
if(DEFINED CMAKE_OSX_ARCHITECTURES)
if("${CMAKE_OSX_ARCHITECTURES}" MATCHES ";")
set(implicit_libs "")
endif()
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:]')"'\(\s*\)(/'"$c"'\1(/g' done >convert.sed && git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' | egrep -z -v '^(Utilities/cm|Source/kwsys/)' | xargs -0 sed -i -f convert.sed && rm convert.sed
2012-08-13 21:47:32 +04:00
set(CMAKE_${lang}_IMPLICIT_LINK_LIBRARIES "${implicit_libs}" PARENT_SCOPE)
set(CMAKE_${lang}_IMPLICIT_LINK_DIRECTORIES "${implicit_dirs}" PARENT_SCOPE)
OS X: Detect implicit linker framework search paths Previously we hard-coded a list of implicit framework directories but did not account for CMAKE_OSX_SYSROOT or for changes to the list across OS X versions. Instead we should automatically detect the framework directories for the active toolchain. The parent commit added the "-Wl,-v" option to ask "ld" to print its implicit directories. It displays a block such as: Framework search paths: /... Parse this block to extract the list of framework directories. Detection may fail on toolchains that do not list their framework directories, such as older OS X linkers. Always treat the paths <sdk>/Library/Frameworks <sdk>/System/Library/Frameworks <sdk>/Network/Library/Frameworks # Older OS X only /System/Library/Frameworks as implicit. Note that /System/Library/Frameworks should always be considered implicit so that frameworks CMake finds there will not override the SDK copies.
2012-12-05 22:46:04 +04:00
set(CMAKE_${lang}_IMPLICIT_LINK_FRAMEWORK_DIRECTORIES "${implicit_fwks}" PARENT_SCOPE)
ENH: Implicit link info for C, CXX, and Fortran This teaches CMake to detect implicit link information for C, C++, and Fortran compilers. We detect the implicit linker search directories and implicit linker options for UNIX-like environments using verbose output from compiler front-ends. We store results in new variables called CMAKE_<LANG>_IMPLICIT_LINK_LIBRARIES CMAKE_<LANG>_IMPLICIT_LINK_DIRECTORIES The implicit libraries can contain linker flags as well as library names.
2009-07-23 18:07:25 +04:00
Teach find_(library|package) about Linux multiarch (#12037) Implement support for multiarch as specified here: http://wiki.debian.org/Multiarch https://wiki.ubuntu.com/MultiarchSpec Detect the <arch> part of <prefix>/lib/<arch> from the implicit library search path from each compiler to set CMAKE_<lang>_LIBRARY_ARCHITECTURE. Define CMAKE_LIBRARY_ARCHITECTURE using one of these values (they should all be the same). Teach the find_library and find_package commands to search <prefix>/lib/<arch> whenever they would search <prefix>/lib.
2011-06-08 16:46:31 +04:00
# Detect library architecture directory name.
Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. Run the following shell code: cmake --help-command-list | grep -v "cmake version" | while read c; do echo 's/\b'"$(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_LIBRARY_ARCHITECTURE_REGEX)
foreach(dir ${implicit_dirs})
if("${dir}" MATCHES "/lib/${CMAKE_LIBRARY_ARCHITECTURE_REGEX}$")
get_filename_component(arch "${dir}" NAME)
set(CMAKE_${lang}_LIBRARY_ARCHITECTURE "${arch}" PARENT_SCOPE)
break()
endif()
endforeach()
endif()
Teach find_(library|package) about Linux multiarch (#12037) Implement support for multiarch as specified here: http://wiki.debian.org/Multiarch https://wiki.ubuntu.com/MultiarchSpec Detect the <arch> part of <prefix>/lib/<arch> from the implicit library search path from each compiler to set CMAKE_<lang>_LIBRARY_ARCHITECTURE. Define CMAKE_LIBRARY_ARCHITECTURE using one of these values (they should all be the same). Teach the find_library and find_package commands to search <prefix>/lib/<arch> whenever they would search <prefix>/lib.
2011-06-08 16:46:31 +04:00
Remove CMake-language block-end command arguments Ancient versions of CMake required else(), endif(), and similar block termination commands to have arguments matching the command starting the block. This is no longer the preferred style. Run the following shell code: for c in else endif endforeach endfunction endmacro endwhile; do echo 's/\b'"$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
message(STATUS "Detecting ${lang} compiler ABI info - failed")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
Teach compiler ABI check to tolerate try_compile COPY_FILE failure In CMakeDetermineCompilerABI we use try_compile with the COPY_FILE option to get a copy of the compiled binary used to detect the ABI information. We already tolerate the case when compilation fails. However, when compilation appears to succeed but does not produce the expected executable the try_compile command immediately reports an error because the COPY_FILE fails. Tolerate COPY_FILE failure without stopping the overall configuration process by using the try_compile COPY_FILE_ERROR option to capture the error message. Log the full error to CMakeError.log and simply report failure to detect the ABI as if compilation had failed. Teach the RunCMake.Configure test to cover this case and verify that the messages show up as expected both in stdout and in CMakeError.log.
2013-07-17 22:56:40 +04:00
"Detecting ${lang} compiler ABI info failed to compile with the following output:\n${OUTPUT}\n${_copy_error}\n\n")
Remove CMake-language block-end command arguments Ancient versions of CMake required else(), endif(), and similar block termination commands to have arguments matching the command starting the block. This is no longer the preferred style. Run the following shell code: for c in else endif endforeach endfunction endmacro endwhile; do echo 's/\b'"$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()
endif()
endfunction()