CMake/Modules/CMakeDetermineSwiftCompiler.cmake
Brad King bf11253163 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 16:15:49 -04:00

54 lines
2.0 KiB
CMake

#=============================================================================
# Copyright 2002-2015 Kitware, Inc.
#
# 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.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
include(${CMAKE_ROOT}/Modules/CMakeDetermineCompiler.cmake)
if("${CMAKE_GENERATOR}" STREQUAL "Xcode")
if(XCODE_VERSION VERSION_LESS 6.1)
message(FATAL_ERROR "Swift language not supported by Xcode ${XCODE_VERSION}")
endif()
set(CMAKE_Swift_COMPILER_XCODE_TYPE sourcecode.swift)
_cmake_find_compiler_path(Swift)
else()
message(FATAL_ERROR "Swift language not supported by \"${CMAKE_GENERATOR}\" generator")
endif()
# Build a small source file to identify the compiler.
if(NOT CMAKE_Swift_COMPILER_ID_RUN)
set(CMAKE_Swift_COMPILER_ID_RUN 1)
list(APPEND CMAKE_Swift_COMPILER_ID_MATCH_VENDORS Apple)
set(CMAKE_Swift_COMPILER_ID_MATCH_VENDOR_REGEX_Apple "com.apple.xcode.tools.swift.compiler")
set(CMAKE_Swift_COMPILER_ID_TOOL_MATCH_REGEX "\nCompileSwiftSources[^\n]*(\n[ \t]+[^\n]*)*\n[ \t]+([^ \t\r\n]+)[^\r\n]* -c[^\r\n]*CompilerIdSwift/CompilerId/main.swift")
set(CMAKE_Swift_COMPILER_ID_TOOL_MATCH_INDEX 2)
# Try to identify the compiler.
set(CMAKE_Swift_COMPILER_ID)
include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerId.cmake)
CMAKE_DETERMINE_COMPILER_ID(Swift "" CompilerId/main.swift)
endif()
if (NOT _CMAKE_TOOLCHAIN_LOCATION)
get_filename_component(_CMAKE_TOOLCHAIN_LOCATION "${CMAKE_Swift_COMPILER}" PATH)
endif ()
include(CMakeFindBinUtils)
# configure variables set in this file for fast reload later on
configure_file(${CMAKE_ROOT}/Modules/CMakeSwiftCompiler.cmake.in
${CMAKE_PLATFORM_INFO_DIR}/CMakeSwiftCompiler.cmake
@ONLY
)