164 lines
6.6 KiB
CMake
164 lines
6.6 KiB
CMake
#
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# CMakeD - CMake module for D Language
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#
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# Copyright (c) 2013, Selman Ulug <selman.ulug@gmail.com>
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# Tim Burrell <tim.burrell@gmail.com>
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# Dragos Carp <dragos.carp@gmail.com>
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#
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# All rights reserved.
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#
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# See LICENSE for details.
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#
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# Modified from CMake 2.6.5 CMakeDetermineCCompiler.cmake
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# See http://www.cmake.org/HTML/Copyright.html for details
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#
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# determine the compiler to use for D programs
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# NOTE, a generator may set CMAKE_D_COMPILER before
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# loading this file to force a compiler.
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# use environment variable DC first if defined by user, next use
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# the cmake variable CMAKE_GENERATOR_D which can be defined by a generator
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# as a default compiler
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if(NOT CMAKE_D_COMPILER)
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set(CMAKE_D_COMPILER_INIT NOTFOUND)
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# prefer the environment variable DC
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if($ENV{DC} MATCHES ".+")
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get_filename_component(CMAKE_D_COMPILER_INIT $ENV{DC} PROGRAM PROGRAM_ARGS CMAKE_D_FLAGS_ENV_INIT)
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if(CMAKE_D_FLAGS_ENV_INIT)
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set(CMAKE_D_COMPILER_ARG1 "${CMAKE_D_FLAGS_ENV_INIT}" CACHE STRING "First argument to D compiler")
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endif()
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if(NOT EXISTS ${CMAKE_D_COMPILER_INIT})
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MESSAGE(FATAL_ERROR "Could not find compiler set in environment variable C:\n$ENV{DC}.")
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endif()
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endif()
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# next try prefer the compiler specified by the generator
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if(CMAKE_GENERATOR_D)
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if(NOT CMAKE_D_COMPILER_INIT)
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set(CMAKE_D_COMPILER_INIT ${CMAKE_GENERATOR_D})
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endif()
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endif()
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# finally list compilers to try
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if(CMAKE_D_COMPILER_INIT)
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set(CMAKE_D_COMPILER_LIST ${CMAKE_D_COMPILER_INIT})
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else()
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set(CMAKE_D_COMPILER_LIST ${_CMAKE_TOOLCHAIN_PREFIX}dmd ${_CMAKE_TOOLCHAIN_PREFIX}ldc2 ${_CMAKE_TOOLCHAIN_PREFIX}gdc)
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endif()
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# Find the compiler.
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if(_CMAKE_USER_D_COMPILER_PATH)
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find_program(CMAKE_D_COMPILER NAMES ${CMAKE_D_COMPILER_LIST} PATHS ${_CMAKE_USER_D_COMPILER_PATH} DOC "D compiler" NO_DEFAULT_PATH)
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endif()
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find_program(CMAKE_D_COMPILER NAMES ${CMAKE_D_COMPILER_LIST} DOC "D compiler")
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if(CMAKE_D_COMPILER_INIT AND NOT CMAKE_D_COMPILER)
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set(CMAKE_D_COMPILER "${CMAKE_D_COMPILER_INIT}" CACHE FILEPATH "D compiler" FORCE)
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endif()
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else()
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# we only get here if CMAKE_D_COMPILER was specified using -D or a pre-made CMakeCache.txt
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# (e.g. via ctest) or set in CMAKE_TOOLCHAIN_FILE
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# if CMAKE_D_COMPILER is a list of length 2, use the first item as
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# CMAKE_D_COMPILER and the 2nd one as CMAKE_D_COMPILER_ARG1
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list(LENGTH CMAKE_D_COMPILER _CMAKE_D_COMPILER_LIST_LENGTH)
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if("${_CMAKE_D_COMPILER_LIST_LENGTH}" EQUAL 2)
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list(GET CMAKE_D_COMPILER 1 CMAKE_D_COMPILER_ARG1)
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list(GET CMAKE_D_COMPILER 0 CMAKE_D_COMPILER)
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endif()
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# if a compiler was specified by the user but without path,
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# now try to find it with the full path
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# if it is found, force it into the cache,
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# if not, don't overwrite the setting (which was given by the user) with "NOTFOUND"
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# if the C compiler already had a path, reuse it for searching the CXX compiler
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get_filename_component(_CMAKE_USER_D_COMPILER_PATH "${CMAKE_D_COMPILER}" PATH)
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if(NOT _CMAKE_USER_D_COMPILER_PATH)
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find_program(CMAKE_D_COMPILER_WITH_PATH NAMES ${CMAKE_D_COMPILER})
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mark_as_advanced(CMAKE_D_COMPILER_WITH_PATH)
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if(CMAKE_D_COMPILER_WITH_PATH)
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set(CMAKE_D_COMPILER ${CMAKE_D_COMPILER_WITH_PATH} CACHE STRING "D compiler" FORCE)
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endif()
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endif()
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endif()
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mark_as_advanced(CMAKE_D_COMPILER)
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if(NOT _CMAKE_TOOLCHAIN_LOCATION)
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get_filename_component(_CMAKE_TOOLCHAIN_LOCATION "${CMAKE_D_COMPILER}" PATH)
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endif()
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# Build a small source file to identify the compiler.
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if(${CMAKE_GENERATOR} MATCHES "Visual Studio")
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set(CMAKE_D_COMPILER_ID_RUN 1)
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set(CMAKE_D_PLATFORM_ID "Windows")
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# TODO: Set the compiler id. It is probably MSVC but
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# the user may be using an integrated Intel compiler.
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# set(CMAKE_D_COMPILER_ID "MSVC")
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endif()
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if(NOT CMAKE_D_COMPILER_ID_RUN)
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set(CMAKE_D_COMPILER_ID_RUN 1)
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# Each entry in this list is a set of extra flags to try
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# adding to the compile line to see if it helps produce
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# a valid identification file.
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set(CMAKE_D_COMPILER_ID_TEST_FLAGS
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# Try compiling to an object file only.
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"-c"
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)
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# Try to identify the compiler.
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set(CMAKE_D_COMPILER_ID)
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find_file(CMAKE_PLATFORM_ID_CONTENT_FILE CMakePlatformId.di.in PATHS ${CMAKE_ROOT}/Modules
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${CMAKE_MODULE_PATH} NO_DEFAULT_PATH)
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file(READ ${CMAKE_PLATFORM_ID_CONTENT_FILE} CMAKE_D_COMPILER_ID_PLATFORM_CONTENT)
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find_file(CMAKE_D_COMPILER_ID_FILE_IN CMakeDCompilerId.d.in PATHS ${CMAKE_ROOT}/Modules
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${CMAKE_MODULE_PATH} NO_DEFAULT_PATH)
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# Workaround for bug http://public.kitware.com/Bug/view.php?id=14481
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# if CMAKE_MODULE_PATH is used, then patch ${CMAKE_ROOT}/Modules/CMakeDetermineCompilerId.cmake
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get_filename_component(CMAKE_D_COMPILER_ID_FILE_IN_PATH ${CMAKE_D_COMPILER_ID_FILE_IN} PATH)
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if(CMAKE_MAJOR_VERSION GREATER 2 OR CMAKE_D_COMPILER_ID_FILE_IN_PATH STREQUAL ${CMAKE_ROOT}/Modules)
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include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerId.cmake)
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else()
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file(READ ${CMAKE_ROOT}/Modules/CMakeDetermineCompilerId.cmake CMAKE_DETERMINE_COMPILER_ID_CMAKE_CONTENT)
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STRING(REPLACE "file(READ \${CMAKE_ROOT}/Modules/\${src}.in ID_CONTENT_IN)"
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"find_file(src_in \${src}.in PATHS \${CMAKE_ROOT}/Modules \${CMAKE_MODULE_PATH} NO_DEFAULT_PATH)
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file(READ \${src_in} ID_CONTENT_IN)
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unset(src_in CACHE)"
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CMAKE_DETERMINE_COMPILER_ID_CMAKE_CONTENT_PATCHED ${CMAKE_DETERMINE_COMPILER_ID_CMAKE_CONTENT})
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file(WRITE ${CMAKE_PLATFORM_INFO_DIR}/CMakeDetermineCompilerId.cmake
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${CMAKE_DETERMINE_COMPILER_ID_CMAKE_CONTENT_PATCHED})
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include(${CMAKE_PLATFORM_INFO_DIR}/CMakeDetermineCompilerId.cmake)
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endif()
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CMAKE_DETERMINE_COMPILER_ID(D DFLAGS CMakeDCompilerId.d)
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unset(CMAKE_D_COMPILER_ID_FILE_IN CACHE)
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unset(CMAKE_PLATFORM_ID_CONTENT_FILE CACHE)
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# Set old compiler and platform id variables.
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if("${CMAKE_D_COMPILER_ID}" MATCHES "GNU")
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set(CMAKE_COMPILER_IS_GDC 1)
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endif()
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if("${CMAKE_D_PLATFORM_ID}" MATCHES "MinGW")
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set(CMAKE_COMPILER_IS_MINGW 1)
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elseif("${CMAKE_D_PLATFORM_ID}" MATCHES "Cygwin")
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set(CMAKE_COMPILER_IS_CYGWIN 1)
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endif()
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endif()
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include(CMakeFindBinUtils)
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if(MSVC_D_ARCHITECTURE_ID)
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set(SET_MSVC_D_ARCHITECTURE_ID
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"set(MSVC_D_ARCHITECTURE_ID ${MSVC_D_ARCHITECTURE_ID})")
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endif()
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# configure variables set in this file for fast reload later on
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find_file(CMAKE_D_COMPILER_CMAKE_IN CMakeDCompiler.cmake.in PATHS ${CMAKE_ROOT}/Modules
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${CMAKE_MODULE_PATH} NO_DEFAULT_PATH)
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configure_file(${CMAKE_D_COMPILER_CMAKE_IN}
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${CMAKE_PLATFORM_INFO_DIR}/CMakeDCompiler.cmake
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@ONLY IMMEDIATE # IMMEDIATE must be here for compatibility mode <= 2.0
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)
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set(CMAKE_D_COMPILER_ENV_VAR "DC")
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