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CMake/Modules/CMakeCXXInformation.cmake

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ENH: add documentation support for modules
2005-12-14 18:51:08 +00:00
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 15:46:51 +00:00
#=============================================================================
Fix relative CMAKE_USER_MAKE_RULES_OVERRIDE (#11725) In commit 295b5b60 (Honor CMAKE_USER_MAKE_RULES_OVERRIDE in try_compile, 2010-06-29) we started passing the value of this variable when building a try_compile project. If the variable contains a relative path it must be treated with respect to the file where it is first used. Ensure that the value is converted to a full path so that it is correctly referenced in the try_compile projects.
2011-01-19 23:05:46 +00:00
# Copyright 2004-2011 Kitware, Inc.
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 15:46:51 +00:00
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
Modules: Fix spelling 'To distributed' -> 'To distribute'
2010-08-07 00:48:47 +00:00
# (To distribute this file outside of CMake, substitute the full
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 15:46:51 +00:00
# License text for the above reference.)
ENH: more uniform approach to enable language, one step closer to being able to enable a language without modifing cmake source code
2004-08-26 18:55:55 +00:00
# This file sets the basic flags for the C++ language in CMake.
# It also loads the available platform file for the system-compiler
# if it exists.
ENH: also load a processor-specific file if exists -also try the basename file if the compiler id file doesn't exist -don't rely so much on the CMAKE_TOOLCHAIN_FILE Alex
2007-06-05 14:28:43 +00:00
# It also loads a system - compiler - processor (or target hardware)
# specific file, which is mainly useful for crosscompiling and embedded systems.
ENH: split cmGlobalGenerator::SetLanguageEnabled() in two parts, where the second part copies the values from the cmake variables into internal maps. So this can now be done after the compiler-specific information has been loaded, which can now overwrite more settings. Alex
2007-06-11 19:31:42 +00:00
# some compilers use different extensions (e.g. sdcc uses .rel)
# so set the extension here first so it can be overridden by the compiler specific file
IF(UNIX)
SET(CMAKE_CXX_OUTPUT_EXTENSION .o)
ELSE(UNIX)
SET(CMAKE_CXX_OUTPUT_EXTENSION .obj)
ENDIF(UNIX)
Reset platform/compiler info status for each language In each CMake<lang>Information.cmake file we use an _INCLUDED_FILE variable to track whether a compiler information file has been loaded. Reset this variable for each language. This fixes Fortran under VS generators with the Intel plugin. Previously the variable would be left set true from C and C++ and then Fortran would not load old-style files like Platform/Windows-ifort.
2010-09-28 13:49:20 +00:00
SET(_INCLUDED_FILE 0)
ENH: Load platform-independent per-compiler files This teaches the language configuration modules to load per-compiler information for each language using the compiler id but no system name. They look for modules named "Compiler/<id>-<lang>.cmake". Such modules may specify compiler flags that do not depend on the platform.
2009-07-23 14:06:31 +00:00
# Load compiler-specific information.
IF(CMAKE_CXX_COMPILER_ID)
INCLUDE(Compiler/${CMAKE_CXX_COMPILER_ID}-CXX OPTIONAL)
ENDIF(CMAKE_CXX_COMPILER_ID)
ENH: fix problem where rc language recursively included itself because CMAKE_BASE_NAME was used from c compiler, do the same fix for other uses of CMAKE_BASE_NAME
2008-10-14 20:07:11 +00:00
SET(CMAKE_BASE_NAME)
ENH: also load a processor-specific file if exists -also try the basename file if the compiler id file doesn't exist -don't rely so much on the CMAKE_TOOLCHAIN_FILE Alex
2007-06-05 14:28:43 +00:00
GET_FILENAME_COMPONENT(CMAKE_BASE_NAME ${CMAKE_CXX_COMPILER} NAME_WE)
# since the gnu compiler has several names force g++
IF(CMAKE_COMPILER_IS_GNUCXX)
SET(CMAKE_BASE_NAME g++)
ENDIF(CMAKE_COMPILER_IS_GNUCXX)
ENH: remove support for presetting CMAKE_SYSTEM_INFO_FILE, CMAKE_SYSTEM_AND_C_COMPILER_INFO_FILE, CMAKE_SYSTEM_AND_CXX_COMPILER_INFO_FILE, CMAKE_SYSTEM_AND_C_COMPILER_AND_PROCESSOR_INFO_FILE and CMAKE_SYSTEM_AND_CXX_COMPILER_AND_PROCESSOR_INFO_FILE Instead of presetting these variables to arbitrary filenames, users should set up CMAKE_SYSTEM_NAME and the compilers correctly and also create a Platform/ directory so these files will all follow the official cmake style, which should make it easier to understand and debug project which have their own platform/toolchain support files. -remove support for a suffix to MS crosscompilers, since this is not (yet) supported by cmake and might confuse users Alex
2007-07-02 17:29:36 +00:00
# load a hardware specific file, mostly useful for embedded compilers
IF(CMAKE_SYSTEM_PROCESSOR)
ENH: first include the processor specific file, then the compiler file, this way the specific hardware file can set variables which can be used in the toolchain rules (like CMAKE_C_COMPILE_OBJECT etc.) Alex
2007-06-12 20:41:50 +00:00
IF(CMAKE_CXX_COMPILER_ID)
ENH: remove support for presetting CMAKE_SYSTEM_INFO_FILE, CMAKE_SYSTEM_AND_C_COMPILER_INFO_FILE, CMAKE_SYSTEM_AND_CXX_COMPILER_INFO_FILE, CMAKE_SYSTEM_AND_C_COMPILER_AND_PROCESSOR_INFO_FILE and CMAKE_SYSTEM_AND_CXX_COMPILER_AND_PROCESSOR_INFO_FILE Instead of presetting these variables to arbitrary filenames, users should set up CMAKE_SYSTEM_NAME and the compilers correctly and also create a Platform/ directory so these files will all follow the official cmake style, which should make it easier to understand and debug project which have their own platform/toolchain support files. -remove support for a suffix to MS crosscompilers, since this is not (yet) supported by cmake and might confuse users Alex
2007-07-02 17:29:36 +00:00
INCLUDE(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_CXX_COMPILER_ID}-CXX-${CMAKE_SYSTEM_PROCESSOR} OPTIONAL RESULT_VARIABLE _INCLUDED_FILE)
ENH: first include the processor specific file, then the compiler file, this way the specific hardware file can set variables which can be used in the toolchain rules (like CMAKE_C_COMPILE_OBJECT etc.) Alex
2007-06-12 20:41:50 +00:00
ENDIF(CMAKE_CXX_COMPILER_ID)
IF (NOT _INCLUDED_FILE)
ENH: remove support for presetting CMAKE_SYSTEM_INFO_FILE, CMAKE_SYSTEM_AND_C_COMPILER_INFO_FILE, CMAKE_SYSTEM_AND_CXX_COMPILER_INFO_FILE, CMAKE_SYSTEM_AND_C_COMPILER_AND_PROCESSOR_INFO_FILE and CMAKE_SYSTEM_AND_CXX_COMPILER_AND_PROCESSOR_INFO_FILE Instead of presetting these variables to arbitrary filenames, users should set up CMAKE_SYSTEM_NAME and the compilers correctly and also create a Platform/ directory so these files will all follow the official cmake style, which should make it easier to understand and debug project which have their own platform/toolchain support files. -remove support for a suffix to MS crosscompilers, since this is not (yet) supported by cmake and might confuse users Alex
2007-07-02 17:29:36 +00:00
INCLUDE(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_BASE_NAME}-${CMAKE_SYSTEM_PROCESSOR} OPTIONAL)
ENH: first include the processor specific file, then the compiler file, this way the specific hardware file can set variables which can be used in the toolchain rules (like CMAKE_C_COMPILE_OBJECT etc.) Alex
2007-06-12 20:41:50 +00:00
ENDIF (NOT _INCLUDED_FILE)
ENH: remove support for presetting CMAKE_SYSTEM_INFO_FILE, CMAKE_SYSTEM_AND_C_COMPILER_INFO_FILE, CMAKE_SYSTEM_AND_CXX_COMPILER_INFO_FILE, CMAKE_SYSTEM_AND_C_COMPILER_AND_PROCESSOR_INFO_FILE and CMAKE_SYSTEM_AND_CXX_COMPILER_AND_PROCESSOR_INFO_FILE Instead of presetting these variables to arbitrary filenames, users should set up CMAKE_SYSTEM_NAME and the compilers correctly and also create a Platform/ directory so these files will all follow the official cmake style, which should make it easier to understand and debug project which have their own platform/toolchain support files. -remove support for a suffix to MS crosscompilers, since this is not (yet) supported by cmake and might confuse users Alex
2007-07-02 17:29:36 +00:00
ENDIF(CMAKE_SYSTEM_PROCESSOR)
# load the system- and compiler specific files
IF(CMAKE_CXX_COMPILER_ID)
INCLUDE(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_CXX_COMPILER_ID}-CXX OPTIONAL RESULT_VARIABLE _INCLUDED_FILE)
ENDIF(CMAKE_CXX_COMPILER_ID)
IF (NOT _INCLUDED_FILE)
Use work-around from bug 4772 for C++ and Fortran The commit "fix for bug 4772" added a work-around to CMakeCInformation for platform config files that put compiler information in the system file (like SunOS flags for GCC). This commit adds the same work-around for CXX and Fortran. It is necessary to support enabling these languages separately from C in other subdirectories. The commit "Avoid (Unix|Windows)Paths.cmake multiple include" added include blockers that prevent the files from multiple inclusion, so it is safe to include the system information files from every language. See issue #4772 and issue #9656.
2009-10-06 15:06:38 +00:00
INCLUDE(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_BASE_NAME} OPTIONAL
RESULT_VARIABLE _INCLUDED_FILE)
ENDIF (NOT _INCLUDED_FILE)
# We specify the compiler information in the system file for some
# platforms, but this language may not have been enabled when the file
# was first included. Include it again to get the language info.
# Remove this when all compiler info is removed from system files.
IF (NOT _INCLUDED_FILE)
INCLUDE(Platform/${CMAKE_SYSTEM_NAME} OPTIONAL)
ENH: remove support for presetting CMAKE_SYSTEM_INFO_FILE, CMAKE_SYSTEM_AND_C_COMPILER_INFO_FILE, CMAKE_SYSTEM_AND_CXX_COMPILER_INFO_FILE, CMAKE_SYSTEM_AND_C_COMPILER_AND_PROCESSOR_INFO_FILE and CMAKE_SYSTEM_AND_CXX_COMPILER_AND_PROCESSOR_INFO_FILE Instead of presetting these variables to arbitrary filenames, users should set up CMAKE_SYSTEM_NAME and the compilers correctly and also create a Platform/ directory so these files will all follow the official cmake style, which should make it easier to understand and debug project which have their own platform/toolchain support files. -remove support for a suffix to MS crosscompilers, since this is not (yet) supported by cmake and might confuse users Alex
2007-07-02 17:29:36 +00:00
ENDIF (NOT _INCLUDED_FILE)
ENH: first include the processor specific file, then the compiler file, this way the specific hardware file can set variables which can be used in the toolchain rules (like CMAKE_C_COMPILE_OBJECT etc.) Alex
2007-06-12 20:41:50 +00:00
Load platform files that need to know the ABI when possible Load platform files named in CMAKE_<lang>_ABI_FILES for each language once the ABI sizeof(void*) is known. During the first configuration this is after the test for working compiler and ABI detection checks. During later configurations the ABI information is immediately available because it has been saved in CMake<lang>Compiler.cmake.
2011-11-29 20:17:06 +00:00
IF(CMAKE_CXX_SIZEOF_DATA_PTR)
FOREACH(f ${CMAKE_CXX_ABI_FILES})
INCLUDE(${f})
ENDFOREACH()
UNSET(CMAKE_CXX_ABI_FILES)
ENDIF()
ENH: first include the processor specific file, then the compiler file, this way the specific hardware file can set variables which can be used in the toolchain rules (like CMAKE_C_COMPILE_OBJECT etc.) Alex
2007-06-12 20:41:50 +00:00
ENH: fix for bug 2921, move _OVERRIDE variable to a better position to allow changing _INIT variables
2006-03-02 12:52:52 +00:00
# This should be included before the _INIT variables are
Remove trailing whitespace from most CMake and C/C++ code Our Git commit hooks disallow modification or addition of lines with trailing whitespace. Wipe out all remnants of trailing whitespace everywhere except third-party code. Run the following shell code: git ls-files -z -- \ bootstrap doxygen.config '*.readme' \ '*.c' '*.cmake' '*.cpp' '*.cxx' \ '*.el' '*.f' '*.f90' '*.h' '*.in' '*.in.l' '*.java' \ '*.mm' '*.pike' '*.py' '*.txt' '*.vim' | egrep -z -v '^(Utilities/cm|Source/(kwsys|CursesDialog/form)/)' | egrep -z -v '^(Modules/CPack\..*\.in)' | xargs -0 sed -i 's/ \+$//'
2012-08-13 17:42:58 +00:00
# used to initialize the cache. Since the rule variables
ENH: fix for bug 2921, move _OVERRIDE variable to a better position to allow changing _INIT variables
2006-03-02 12:52:52 +00:00
# have if blocks on them, users can still define them here.
# But, it should still be after the platform file so changes can
# be made to those values.
IF(CMAKE_USER_MAKE_RULES_OVERRIDE)
Fix relative CMAKE_USER_MAKE_RULES_OVERRIDE (#11725) In commit 295b5b60 (Honor CMAKE_USER_MAKE_RULES_OVERRIDE in try_compile, 2010-06-29) we started passing the value of this variable when building a try_compile project. If the variable contains a relative path it must be treated with respect to the file where it is first used. Ensure that the value is converted to a full path so that it is correctly referenced in the try_compile projects.
2011-01-19 23:05:46 +00:00
# Save the full path of the file so try_compile can use it.
INCLUDE(${CMAKE_USER_MAKE_RULES_OVERRIDE} RESULT_VARIABLE _override)
SET(CMAKE_USER_MAKE_RULES_OVERRIDE "${_override}")
ENDIF()
ENH: fix for bug 2921, move _OVERRIDE variable to a better position to allow changing _INIT variables
2006-03-02 12:52:52 +00:00
IF(CMAKE_USER_MAKE_RULES_OVERRIDE_CXX)
Fix relative CMAKE_USER_MAKE_RULES_OVERRIDE (#11725) In commit 295b5b60 (Honor CMAKE_USER_MAKE_RULES_OVERRIDE in try_compile, 2010-06-29) we started passing the value of this variable when building a try_compile project. If the variable contains a relative path it must be treated with respect to the file where it is first used. Ensure that the value is converted to a full path so that it is correctly referenced in the try_compile projects.
2011-01-19 23:05:46 +00:00
# Save the full path of the file so try_compile can use it.
INCLUDE(${CMAKE_USER_MAKE_RULES_OVERRIDE_CXX} RESULT_VARIABLE _override)
SET(CMAKE_USER_MAKE_RULES_OVERRIDE_CXX "${_override}")
ENDIF()
ENH: fix for bug 2921, move _OVERRIDE variable to a better position to allow changing _INIT variables
2006-03-02 12:52:52 +00:00
ENH: more uniform approach to enable language, one step closer to being able to enable a language without modifing cmake source code
2004-08-26 18:55:55 +00:00
# Create a set of shared library variable specific to C++
# For 90% of the systems, these are the same flags as the C versions
# so if these are not set just copy the flags from the c version
IF(NOT CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS)
SET(CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS ${CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS})
ENDIF(NOT CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS)
Add platform variables for position independent code flags Store in new platform variables CMAKE_${lang}_COMPILE_OPTIONS_PIC CMAKE_${lang}_COMPILE_OPTIONS_PIE flags for position independent code generation. In almost all cases, this means duplication of the CMAKE_SHARED_LIBRARY_${lang}_FLAGS for the _PIC case and using the assumed pie equivalent for the _PIE case. Note that the GNU compiler has supported -fPIE since 3.4 and that there is no -fPIC on GNU for Windows or Cygwin. There is a possibility that the _PIE variables are not correct. However, as there is no backwards compatibility to be concerned about (as the POSITION_INDEPENDENT_CODE property is not used anywhere yet), the current state suffices.
2012-05-05 19:11:35 +00:00
IF(NOT CMAKE_CXX_COMPILE_OPTIONS_PIC)
SET(CMAKE_CXX_COMPILE_OPTIONS_PIC ${CMAKE_C_COMPILE_OPTIONS_PIC})
ENDIF(NOT CMAKE_CXX_COMPILE_OPTIONS_PIC)
IF(NOT CMAKE_CXX_COMPILE_OPTIONS_PIE)
SET(CMAKE_CXX_COMPILE_OPTIONS_PIE ${CMAKE_C_COMPILE_OPTIONS_PIE})
ENDIF(NOT CMAKE_CXX_COMPILE_OPTIONS_PIE)
Add platform variable for flags specific to shared libraries Store in CMAKE_${lang}_COMPILE_OPTIONS_DLL flags from CMAKE_SHARED_LIBRARY_${lang}_FLAGS that are truly exclusive to shared libraries.
2012-05-30 08:52:35 +00:00
IF(NOT CMAKE_CXX_COMPILE_OPTIONS_DLL)
SET(CMAKE_CXX_COMPILE_OPTIONS_DLL ${CMAKE_C_COMPILE_OPTIONS_DLL})
ENDIF(NOT CMAKE_CXX_COMPILE_OPTIONS_DLL)
ENH: more uniform approach to enable language, one step closer to being able to enable a language without modifing cmake source code
2004-08-26 18:55:55 +00:00
IF(NOT CMAKE_SHARED_LIBRARY_CXX_FLAGS)
SET(CMAKE_SHARED_LIBRARY_CXX_FLAGS ${CMAKE_SHARED_LIBRARY_C_FLAGS})
ENDIF(NOT CMAKE_SHARED_LIBRARY_CXX_FLAGS)
ENH: Merging CompilerId updates from branch CMake-Modules-CompilerId to the main tree. Changes between CMake-Modules-CompilerId-mp1 and CMake-Modules-CompilerId-mp2 are included.
2007-05-03 12:24:32 +00:00
IF(NOT DEFINED CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS)
ENH: major changes to support addition of languages from cmake modules directory.
2004-09-22 18:42:05 +00:00
SET(CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS ${CMAKE_SHARED_LIBRARY_LINK_C_FLAGS})
ENH: Merging CompilerId updates from branch CMake-Modules-CompilerId to the main tree. Changes between CMake-Modules-CompilerId-mp1 and CMake-Modules-CompilerId-mp2 are included.
2007-05-03 12:24:32 +00:00
ENDIF(NOT DEFINED CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS)
ENH: more uniform approach to enable language, one step closer to being able to enable a language without modifing cmake source code
2004-08-26 18:55:55 +00:00
IF(NOT CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG)
Remove trailing whitespace from most CMake and C/C++ code Our Git commit hooks disallow modification or addition of lines with trailing whitespace. Wipe out all remnants of trailing whitespace everywhere except third-party code. Run the following shell code: git ls-files -z -- \ bootstrap doxygen.config '*.readme' \ '*.c' '*.cmake' '*.cpp' '*.cxx' \ '*.el' '*.f' '*.f90' '*.h' '*.in' '*.in.l' '*.java' \ '*.mm' '*.pike' '*.py' '*.txt' '*.vim' | egrep -z -v '^(Utilities/cm|Source/(kwsys|CursesDialog/form)/)' | egrep -z -v '^(Modules/CPack\..*\.in)' | xargs -0 sed -i 's/ \+$//'
2012-08-13 17:42:58 +00:00
SET(CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG ${CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG})
ENH: more uniform approach to enable language, one step closer to being able to enable a language without modifing cmake source code
2004-08-26 18:55:55 +00:00
ENDIF(NOT CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG)
IF(NOT CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG_SEP)
ENH: major changes to support addition of languages from cmake modules directory.
2004-09-22 18:42:05 +00:00
SET(CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG_SEP ${CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG_SEP})
ENH: more uniform approach to enable language, one step closer to being able to enable a language without modifing cmake source code
2004-08-26 18:55:55 +00:00
ENDIF(NOT CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG_SEP)
ENH: Pass dependent library search path to linker on some platforms. - Move runtime path ordering out of cmComputeLinkInformation into its own class cmOrderRuntimeDirectories. - Create an instance of cmOrderRuntimeDirectories for runtime path ordering and another instance for dependent library path ordering. - Replace CMAKE_DEPENDENT_SHARED_LIBRARY_MODE with explicit CMAKE_LINK_DEPENDENT_LIBRARY_FILES boolean. - Create CMAKE_LINK_DEPENDENT_LIBRARY_DIRS boolean. - Create variables to specify -rpath-link flags: CMAKE_SHARED_LIBRARY_RPATH_LINK_<LANG>_FLAG CMAKE_EXECUTABLE_RPATH_LINK_<LANG>_FLAG - Enable -rpath-link flag on Linux and QNX. - Documentation and error message updates
2008-02-01 13:56:00 +00:00
IF(NOT CMAKE_SHARED_LIBRARY_RPATH_LINK_CXX_FLAG)
SET(CMAKE_SHARED_LIBRARY_RPATH_LINK_CXX_FLAG ${CMAKE_SHARED_LIBRARY_RPATH_LINK_C_FLAG})
ENDIF(NOT CMAKE_SHARED_LIBRARY_RPATH_LINK_CXX_FLAG)
Reduce duplication in Platform/<os>.cmake files Several platform-wide linker flag variables are defined in Modules/Platform/<os>.cmake files for C and then copied by the Modules/CMake<lang>Information.cmake file for each language. We now use this approach for the variables CMAKE_EXE_EXPORTS_${lang}_FLAG CMAKE_SHARED_LIBRARY_SONAME_${lang}_FLAG CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS to avoid duplication for multiple languages in each platform file.
2009-12-02 20:17:53 +00:00
IF(NOT DEFINED CMAKE_EXE_EXPORTS_CXX_FLAG)
SET(CMAKE_EXE_EXPORTS_CXX_FLAG ${CMAKE_EXE_EXPORTS_C_FLAG})
ENDIF()
IF(NOT DEFINED CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG)
SET(CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG ${CMAKE_SHARED_LIBRARY_SONAME_C_FLAG})
ENDIF()
ENH: Implement linking with paths to library files instead of -L and -l separation. See bug #3832 - This is purely an implementation improvement. No interface has changed. - Create cmComputeLinkInformation class - Move and re-implement logic from: cmLocalGenerator::ComputeLinkInformation cmOrderLinkDirectories - Link libraries to targets with their full path (if it is known) - Dirs specified with link_directories command still added with -L - Make link type specific to library names without paths (name libfoo.a without path becomes -Wl,-Bstatic -lfoo) - Make directory ordering specific to a runtime path computation feature (look for conflicting SONAMEs instead of library names) - Implement proper rpath support on HP-UX and AIX.
2008-01-22 14:13:04 +00:00
IF(NOT CMAKE_EXECUTABLE_RUNTIME_CXX_FLAG)
BUG: CMAKE_EXECUTABLE_RUNTIME_CXX_FLAG should get its default value from CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG, not CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG.
2008-01-23 21:35:25 +00:00
SET(CMAKE_EXECUTABLE_RUNTIME_CXX_FLAG ${CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG})
ENH: Implement linking with paths to library files instead of -L and -l separation. See bug #3832 - This is purely an implementation improvement. No interface has changed. - Create cmComputeLinkInformation class - Move and re-implement logic from: cmLocalGenerator::ComputeLinkInformation cmOrderLinkDirectories - Link libraries to targets with their full path (if it is known) - Dirs specified with link_directories command still added with -L - Make link type specific to library names without paths (name libfoo.a without path becomes -Wl,-Bstatic -lfoo) - Make directory ordering specific to a runtime path computation feature (look for conflicting SONAMEs instead of library names) - Implement proper rpath support on HP-UX and AIX.
2008-01-22 14:13:04 +00:00
ENDIF(NOT CMAKE_EXECUTABLE_RUNTIME_CXX_FLAG)
IF(NOT CMAKE_EXECUTABLE_RUNTIME_CXX_FLAG_SEP)
BUG: CMAKE_EXECUTABLE_RUNTIME_CXX_FLAG should get its default value from CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG, not CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG.
2008-01-23 21:35:25 +00:00
SET(CMAKE_EXECUTABLE_RUNTIME_CXX_FLAG_SEP ${CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG_SEP})
ENH: Implement linking with paths to library files instead of -L and -l separation. See bug #3832 - This is purely an implementation improvement. No interface has changed. - Create cmComputeLinkInformation class - Move and re-implement logic from: cmLocalGenerator::ComputeLinkInformation cmOrderLinkDirectories - Link libraries to targets with their full path (if it is known) - Dirs specified with link_directories command still added with -L - Make link type specific to library names without paths (name libfoo.a without path becomes -Wl,-Bstatic -lfoo) - Make directory ordering specific to a runtime path computation feature (look for conflicting SONAMEs instead of library names) - Implement proper rpath support on HP-UX and AIX.
2008-01-22 14:13:04 +00:00
ENDIF(NOT CMAKE_EXECUTABLE_RUNTIME_CXX_FLAG_SEP)
ENH: Pass dependent library search path to linker on some platforms. - Move runtime path ordering out of cmComputeLinkInformation into its own class cmOrderRuntimeDirectories. - Create an instance of cmOrderRuntimeDirectories for runtime path ordering and another instance for dependent library path ordering. - Replace CMAKE_DEPENDENT_SHARED_LIBRARY_MODE with explicit CMAKE_LINK_DEPENDENT_LIBRARY_FILES boolean. - Create CMAKE_LINK_DEPENDENT_LIBRARY_DIRS boolean. - Create variables to specify -rpath-link flags: CMAKE_SHARED_LIBRARY_RPATH_LINK_<LANG>_FLAG CMAKE_EXECUTABLE_RPATH_LINK_<LANG>_FLAG - Enable -rpath-link flag on Linux and QNX. - Documentation and error message updates
2008-02-01 13:56:00 +00:00
IF(NOT CMAKE_EXECUTABLE_RPATH_LINK_CXX_FLAG)
SET(CMAKE_EXECUTABLE_RPATH_LINK_CXX_FLAG ${CMAKE_SHARED_LIBRARY_RPATH_LINK_CXX_FLAG})
ENDIF(NOT CMAKE_EXECUTABLE_RPATH_LINK_CXX_FLAG)
ENH: Implement linking with paths to library files instead of -L and -l separation. See bug #3832 - This is purely an implementation improvement. No interface has changed. - Create cmComputeLinkInformation class - Move and re-implement logic from: cmLocalGenerator::ComputeLinkInformation cmOrderLinkDirectories - Link libraries to targets with their full path (if it is known) - Dirs specified with link_directories command still added with -L - Make link type specific to library names without paths (name libfoo.a without path becomes -Wl,-Bstatic -lfoo) - Make directory ordering specific to a runtime path computation feature (look for conflicting SONAMEs instead of library names) - Implement proper rpath support on HP-UX and AIX.
2008-01-22 14:13:04 +00:00
IF(NOT DEFINED CMAKE_SHARED_LIBRARY_LINK_CXX_WITH_RUNTIME_PATH)
SET(CMAKE_SHARED_LIBRARY_LINK_CXX_WITH_RUNTIME_PATH ${CMAKE_SHARED_LIBRARY_LINK_C_WITH_RUNTIME_PATH})
ENDIF(NOT DEFINED CMAKE_SHARED_LIBRARY_LINK_CXX_WITH_RUNTIME_PATH)
ENH: major changes to support addition of languages from cmake modules directory.
2004-09-22 18:42:05 +00:00
IF(NOT CMAKE_INCLUDE_FLAG_CXX)
SET(CMAKE_INCLUDE_FLAG_CXX ${CMAKE_INCLUDE_FLAG_C})
ENDIF(NOT CMAKE_INCLUDE_FLAG_CXX)
IF(NOT CMAKE_INCLUDE_FLAG_SEP_CXX)
SET(CMAKE_INCLUDE_FLAG_SEP_CXX ${CMAKE_INCLUDE_FLAG_SEP_C})
ENDIF(NOT CMAKE_INCLUDE_FLAG_SEP_CXX)
Fix CXX/Fortran MODULE flags when enabled before C (#12929) If CXX or Fortran is enabled before C then the values of CMAKE_SHARED_MODULE_C_FLAGS CMAKE_SHARED_MODULE_CREATE_C_FLAGS may not be available. On platforms where MODULE library (plugin) creation is the same as SHARED library creation initialize the MODULE creation flags from the SHARED creation flags of the matching language instead of assuming that C has been enabled first. Teach the COnly and CxxOnly tests to build MODULE libraries. The latter covers this specific case.
2012-02-03 15:36:26 +00:00
# for most systems a module is the same as a shared library
# so unless the variable CMAKE_MODULE_EXISTS is set just
# copy the values from the LIBRARY variables
IF(NOT CMAKE_MODULE_EXISTS)
SET(CMAKE_SHARED_MODULE_CXX_FLAGS ${CMAKE_SHARED_LIBRARY_CXX_FLAGS})
SET(CMAKE_SHARED_MODULE_CREATE_CXX_FLAGS ${CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS})
ENDIF(NOT CMAKE_MODULE_EXISTS)
ENH: more uniform approach to enable language, one step closer to being able to enable a language without modifing cmake source code
2004-08-26 18:55:55 +00:00
# repeat for modules
IF(NOT CMAKE_SHARED_MODULE_CREATE_CXX_FLAGS)
SET(CMAKE_SHARED_MODULE_CREATE_CXX_FLAGS ${CMAKE_SHARED_MODULE_CREATE_C_FLAGS})
ENDIF(NOT CMAKE_SHARED_MODULE_CREATE_CXX_FLAGS)
IF(NOT CMAKE_SHARED_MODULE_CXX_FLAGS)
SET(CMAKE_SHARED_MODULE_CXX_FLAGS ${CMAKE_SHARED_MODULE_C_FLAGS})
ENDIF(NOT CMAKE_SHARED_MODULE_CXX_FLAGS)
ENH: Adding support to link specifically to an archive or a shared library based on the file name specified. This fixes the problem of having -lfoo linking to libfoo.so even when it came from libfoo.a being specified.
2006-09-15 18:09:10 +00:00
# Initialize CXX link type selection flags from C versions.
FOREACH(type SHARED_LIBRARY SHARED_MODULE EXE)
IF(NOT CMAKE_${type}_LINK_STATIC_CXX_FLAGS)
SET(CMAKE_${type}_LINK_STATIC_CXX_FLAGS
${CMAKE_${type}_LINK_STATIC_C_FLAGS})
ENDIF(NOT CMAKE_${type}_LINK_STATIC_CXX_FLAGS)
IF(NOT CMAKE_${type}_LINK_DYNAMIC_CXX_FLAGS)
SET(CMAKE_${type}_LINK_DYNAMIC_CXX_FLAGS
${CMAKE_${type}_LINK_DYNAMIC_C_FLAGS})
ENDIF(NOT CMAKE_${type}_LINK_DYNAMIC_CXX_FLAGS)
ENDFOREACH(type)
ENH: more uniform approach to enable language, one step closer to being able to enable a language without modifing cmake source code
2004-08-26 18:55:55 +00:00
# add the flags to the cache based
# on the initial values computed in the platform/*.cmake files
# use _INIT variables so that this only happens the first time
# and you can set these flags in the cmake cache
ENH: fix init flags getting stuffed into the compile line by force.
2008-04-21 17:04:15 +00:00
SET(CMAKE_CXX_FLAGS_INIT "$ENV{CXXFLAGS} ${CMAKE_CXX_FLAGS_INIT}")
Remove trailing whitespace from most CMake and C/C++ code Our Git commit hooks disallow modification or addition of lines with trailing whitespace. Wipe out all remnants of trailing whitespace everywhere except third-party code. Run the following shell code: git ls-files -z -- \ bootstrap doxygen.config '*.readme' \ '*.c' '*.cmake' '*.cpp' '*.cxx' \ '*.el' '*.f' '*.f90' '*.h' '*.in' '*.in.l' '*.java' \ '*.mm' '*.pike' '*.py' '*.txt' '*.vim' | egrep -z -v '^(Utilities/cm|Source/(kwsys|CursesDialog/form)/)' | egrep -z -v '^(Modules/CPack\..*\.in)' | xargs -0 sed -i 's/ \+$//'
2012-08-13 17:42:58 +00:00
# avoid just having a space as the initial value for the cache
ENH: fix init flags getting stuffed into the compile line by force.
2008-04-21 17:04:15 +00:00
IF(CMAKE_CXX_FLAGS_INIT STREQUAL " ")
SET(CMAKE_CXX_FLAGS_INIT)
ENDIF(CMAKE_CXX_FLAGS_INIT STREQUAL " ")
SET (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS_INIT}" CACHE STRING
ENH: more uniform approach to enable language, one step closer to being able to enable a language without modifing cmake source code
2004-08-26 18:55:55 +00:00
"Flags used by the compiler during all build types.")
IF(NOT CMAKE_NOT_USING_CONFIG_FLAGS)
SET (CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG_INIT}" CACHE STRING
"Flags used by the compiler during debug builds.")
SET (CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL_INIT}" CACHE STRING
"Flags used by the compiler during release minsize builds.")
SET (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE_INIT}" CACHE STRING
"Flags used by the compiler during release builds (/MD /Ob1 /Oi /Ot /Oy /Gs will produce slightly less optimized but smaller files).")
SET (CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO_INIT}" CACHE STRING
"Flags used by the compiler during Release with Debug Info builds.")
ENDIF(NOT CMAKE_NOT_USING_CONFIG_FLAGS)
ENH: Split CMAKE_STANDARD_LIBRARIES into per-language variables CMAKE_<lang>_STANDARD_LIBRARIES. This is needed to get programmable language support working with Visual Studio generators. It makes sense anyway.
2006-04-11 20:55:49 +00:00
IF(CMAKE_CXX_STANDARD_LIBRARIES_INIT)
SET(CMAKE_CXX_STANDARD_LIBRARIES "${CMAKE_CXX_STANDARD_LIBRARIES_INIT}"
CACHE STRING "Libraries linked by defalut with all C++ applications.")
MARK_AS_ADVANCED(CMAKE_CXX_STANDARD_LIBRARIES)
ENDIF(CMAKE_CXX_STANDARD_LIBRARIES_INIT)
ENH: more uniform approach to enable language, one step closer to being able to enable a language without modifing cmake source code
2004-08-26 18:55:55 +00:00
INCLUDE(CMakeCommonLanguageInclude)
# now define the following rules:
# CMAKE_CXX_CREATE_SHARED_LIBRARY
# CMAKE_CXX_CREATE_SHARED_MODULE
# CMAKE_CXX_COMPILE_OBJECT
# CMAKE_CXX_LINK_EXECUTABLE
# variables supplied by the generator at use time
# <TARGET>
# <TARGET_BASE> the target without the suffix
# <OBJECTS>
# <OBJECT>
# <LINK_LIBRARIES>
# <FLAGS>
# <LINK_FLAGS>
# CXX compiler information
Remove trailing whitespace from most CMake and C/C++ code Our Git commit hooks disallow modification or addition of lines with trailing whitespace. Wipe out all remnants of trailing whitespace everywhere except third-party code. Run the following shell code: git ls-files -z -- \ bootstrap doxygen.config '*.readme' \ '*.c' '*.cmake' '*.cpp' '*.cxx' \ '*.el' '*.f' '*.f90' '*.h' '*.in' '*.in.l' '*.java' \ '*.mm' '*.pike' '*.py' '*.txt' '*.vim' | egrep -z -v '^(Utilities/cm|Source/(kwsys|CursesDialog/form)/)' | egrep -z -v '^(Modules/CPack\..*\.in)' | xargs -0 sed -i 's/ \+$//'
2012-08-13 17:42:58 +00:00
# <CMAKE_CXX_COMPILER>
ENH: more uniform approach to enable language, one step closer to being able to enable a language without modifing cmake source code
2004-08-26 18:55:55 +00:00
# <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS>
# <CMAKE_CXX_SHARED_MODULE_CREATE_FLAGS>
# <CMAKE_CXX_LINK_FLAGS>
# Static library tools
Remove trailing whitespace from most CMake and C/C++ code Our Git commit hooks disallow modification or addition of lines with trailing whitespace. Wipe out all remnants of trailing whitespace everywhere except third-party code. Run the following shell code: git ls-files -z -- \ bootstrap doxygen.config '*.readme' \ '*.c' '*.cmake' '*.cpp' '*.cxx' \ '*.el' '*.f' '*.f90' '*.h' '*.in' '*.in.l' '*.java' \ '*.mm' '*.pike' '*.py' '*.txt' '*.vim' | egrep -z -v '^(Utilities/cm|Source/(kwsys|CursesDialog/form)/)' | egrep -z -v '^(Modules/CPack\..*\.in)' | xargs -0 sed -i 's/ \+$//'
2012-08-13 17:42:58 +00:00
# <CMAKE_AR>
ENH: more uniform approach to enable language, one step closer to being able to enable a language without modifing cmake source code
2004-08-26 18:55:55 +00:00
# <CMAKE_RANLIB>
# create a shared C++ library
IF(NOT CMAKE_CXX_CREATE_SHARED_LIBRARY)
SET(CMAKE_CXX_CREATE_SHARED_LIBRARY
Support building shared libraries or modules without soname (#13155) Add a boolean target property NO_SONAME which may be used to disable soname for the specified shared library or module even if the platform supports it. This property should be useful for private shared libraries or various plugins which live in private directories and have not been designed to be found or loaded globally. Replace references to <CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG> and hard-coded -install_name flags with a conditional <SONAME_FLAG> which is expanded to the value of the CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG definition as long as soname supports is enabled for the target in question. Keep expanding CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG in rules in case third party projects still use it. Such projects would not yet use NO_SONAME so the adjacent <TARGET_SONAME> will always be expanded. Make <TARGET_INSTALLNAME_DIR> NO_SONAME aware as well. Since -install_name is soname on OS X, this should not be a problem if this variable is expanded only if soname is enabled. The Ninja generator performs rule variable substitution only once globally per rule to put its own placeholders. Final substitution is performed by ninja at build time. Therefore we cannot conditionally replace the soname placeholders on a per-target basis. Rather than omitting $SONAME from rules.ninja, simply do not write its contents for targets which have NO_SONAME. Since 3 variables are affected by NO_SONAME ($SONAME, $SONAME_FLAG, $INSTALLNAME_DIR), set them only if soname is enabled.
2012-04-22 13:42:55 +00:00
"<CMAKE_CXX_COMPILER> <CMAKE_SHARED_LIBRARY_CXX_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> <SONAME_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>")
ENH: more uniform approach to enable language, one step closer to being able to enable a language without modifing cmake source code
2004-08-26 18:55:55 +00:00
ENDIF(NOT CMAKE_CXX_CREATE_SHARED_LIBRARY)
# create a c++ shared module copy the shared library rule by default
IF(NOT CMAKE_CXX_CREATE_SHARED_MODULE)
SET(CMAKE_CXX_CREATE_SHARED_MODULE ${CMAKE_CXX_CREATE_SHARED_LIBRARY})
ENDIF(NOT CMAKE_CXX_CREATE_SHARED_MODULE)
ENH: Build large archives incrementally Creation of archive libraries with the unix 'ar' tool should be done incrementally when the number of object files is large. This avoids problems with the command line getting too many arguments.
2008-08-04 15:37:19 +00:00
# Create a static archive incrementally for large object file counts.
# If CMAKE_CXX_CREATE_STATIC_LIBRARY is set it will override these.
Allow platform files to set large archive rules (#11674) Commit aaa88d33 (Build large archives incrementally, 2008-08-04) hard-coded rules to create static archives incrementally in each language information file. Set each rule conditionally to allow compiler and platform information files to override the language default rules. Inspired-by: Harald Pohl <pohl.h@eppendorf.de>
2011-01-10 14:58:55 +00:00
IF(NOT DEFINED CMAKE_CXX_ARCHIVE_CREATE)
SET(CMAKE_CXX_ARCHIVE_CREATE "<CMAKE_AR> cr <TARGET> <LINK_FLAGS> <OBJECTS>")
ENDIF()
IF(NOT DEFINED CMAKE_CXX_ARCHIVE_APPEND)
SET(CMAKE_CXX_ARCHIVE_APPEND "<CMAKE_AR> r <TARGET> <LINK_FLAGS> <OBJECTS>")
ENDIF()
IF(NOT DEFINED CMAKE_CXX_ARCHIVE_FINISH)
SET(CMAKE_CXX_ARCHIVE_FINISH "<CMAKE_RANLIB> <TARGET>")
ENDIF()
ENH: more uniform approach to enable language, one step closer to being able to enable a language without modifing cmake source code
2004-08-26 18:55:55 +00:00
# compile a C++ file into an object file
IF(NOT CMAKE_CXX_COMPILE_OBJECT)
SET(CMAKE_CXX_COMPILE_OBJECT
ENH: Create COMPILE_DEFINITIONS property for targets and source files. Create <config>_COMPILE_DEFINITIONS property as per-configuration version. Add Preprocess test to test the feature. Document limitations on Xcode and VS6 generators.
2008-01-14 14:20:58 +00:00
"<CMAKE_CXX_COMPILER> <DEFINES> <FLAGS> -o <OBJECT> -c <SOURCE>")
ENH: more uniform approach to enable language, one step closer to being able to enable a language without modifing cmake source code
2004-08-26 18:55:55 +00:00
ENDIF(NOT CMAKE_CXX_COMPILE_OBJECT)
IF(NOT CMAKE_CXX_LINK_EXECUTABLE)
SET(CMAKE_CXX_LINK_EXECUTABLE
ENH: move flags next to compiler, so if env contains compiler and some flag, they stay together
2005-07-20 16:54:12 +00:00
"<CMAKE_CXX_COMPILER> <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>")
ENH: more uniform approach to enable language, one step closer to being able to enable a language without modifing cmake source code
2004-08-26 18:55:55 +00:00
ENDIF(NOT CMAKE_CXX_LINK_EXECUTABLE)
MARK_AS_ADVANCED(
CMAKE_BUILD_TOOL
Remove trailing whitespace from most CMake and C/C++ code Our Git commit hooks disallow modification or addition of lines with trailing whitespace. Wipe out all remnants of trailing whitespace everywhere except third-party code. Run the following shell code: git ls-files -z -- \ bootstrap doxygen.config '*.readme' \ '*.c' '*.cmake' '*.cpp' '*.cxx' \ '*.el' '*.f' '*.f90' '*.h' '*.in' '*.in.l' '*.java' \ '*.mm' '*.pike' '*.py' '*.txt' '*.vim' | egrep -z -v '^(Utilities/cm|Source/(kwsys|CursesDialog/form)/)' | egrep -z -v '^(Modules/CPack\..*\.in)' | xargs -0 sed -i 's/ \+$//'
2012-08-13 17:42:58 +00:00
CMAKE_VERBOSE_MAKEFILE
ENH: more uniform approach to enable language, one step closer to being able to enable a language without modifing cmake source code
2004-08-26 18:55:55 +00:00
CMAKE_CXX_FLAGS
CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_RELWITHDEBINFO
CMAKE_CXX_FLAGS_MINSIZEREL
CMAKE_CXX_FLAGS_DEBUG)
ENH: fix spelling errors
2006-02-27 17:14:10 +00:00
SET(CMAKE_CXX_INFORMATION_LOADED 1)
ENH: more uniform approach to enable language, one step closer to being able to enable a language without modifing cmake source code
2004-08-26 18:55:55 +00:00
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