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CMake/Modules/CMakeSwiftInformation.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copyright/license notice headers that spell out copyright holder names and years are hard to maintain and often out-of-date or plain wrong.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 19:01:08 +00:00
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
Add rudimentary support for the Apple Swift language with Xcode Allow the `Swift` language to be enabled with the Xcode generator for Xcode >= 6.1. Reject it on other generators and with older Xcode versions. Since Apple is the only vendor implementing the language right now, the compiler id can be just `Apple`.
2015-07-06 20:15:49 +00:00
set(CMAKE_Swift_OUTPUT_EXTENSION .o)
Xcode: Obey SYSTEM keyword for includes (#15687) CMake used to put all header search paths into HEADER_SEARCH_PATHS attribute. Unfortunately this attribute does not support to declare a search path as a system include. As a hack one could add a -isystem /path to the cflags but then include ordering is not deterministic. A better approach was chosen with this patch by not filling HEADER_SEARCH_PATHS at all and to populate the C, C++, and Fortran flags directly. The include paths used by Xcode should be now identical to the ones used by Unix Makefiles and Ninja generator.
2015-08-31 20:33:37 +00:00
set(CMAKE_INCLUDE_FLAG_Swift "-I")
Add rudimentary support for the Apple Swift language with Xcode Allow the `Swift` language to be enabled with the Xcode generator for Xcode >= 6.1. Reject it on other generators and with older Xcode versions. Since Apple is the only vendor implementing the language right now, the compiler id can be just `Apple`.
2015-07-06 20:15:49 +00:00
# Load compiler-specific information.
if(CMAKE_Swift_COMPILER_ID)
include(Compiler/${CMAKE_Swift_COMPILER_ID}-Swift OPTIONAL)
endif()
# load the system- and compiler specific files
if(CMAKE_Swift_COMPILER_ID)
# load a hardware specific file, mostly useful for embedded compilers
if(CMAKE_SYSTEM_PROCESSOR)
include(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_Swift_COMPILER_ID}-Swift-${CMAKE_SYSTEM_PROCESSOR} OPTIONAL)
endif()
include(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_Swift_COMPILER_ID}-Swift OPTIONAL)
endif()
# 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_Swift_FLAGS ${CMAKE_SHARED_LIBRARY_Swift_FLAGS})
set(CMAKE_SHARED_MODULE_CREATE_Swift_FLAGS ${CMAKE_SHARED_LIBRARY_CREATE_Swift_FLAGS})
endif()
include(CMakeCommonLanguageInclude)
set(CMAKE_Swift_INFORMATION_LOADED 1)
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