cmake-d/cmaked/CMakeDetermineDCompiler.cmake
2013-10-14 01:09:40 +02:00

146 lines
5.8 KiB
CMake

#
# CMakeD - CMake module for D Language
#
# Copyright (c) 2007, Selman Ulug <selman.ulug@gmail.com>
# Tim Burrell <tim.burrell@gmail.com>
#
# All rights reserved.
#
# See Copyright.txt for details.
#
# Modified from CMake 2.6.5 CMakeDetermineCCompiler.cmake
# See http://www.cmake.org/HTML/Copyright.html for details
#
# determine the compiler to use for D programs
# NOTE, a generator may set CMAKE_D_COMPILER before
# loading this file to force a compiler.
# use environment variable DC first if defined by user, next use
# the cmake variable CMAKE_GENERATOR_D which can be defined by a generator
# as a default compiler
IF(NOT CMAKE_D_COMPILER)
SET(CMAKE_D_COMPILER_INIT NOTFOUND)
# prefer the environment variable DC
IF($ENV{DC} MATCHES ".+")
GET_FILENAME_COMPONENT(CMAKE_D_COMPILER_INIT $ENV{DC} PROGRAM PROGRAM_ARGS CMAKE_D_FLAGS_ENV_INIT)
IF(CMAKE_D_FLAGS_ENV_INIT)
SET(CMAKE_D_COMPILER_ARG1 "${CMAKE_D_FLAGS_ENV_INIT}" CACHE STRING "First argument to D compiler")
ENDIF(CMAKE_D_FLAGS_ENV_INIT)
IF(NOT EXISTS ${CMAKE_D_COMPILER_INIT})
MESSAGE(FATAL_ERROR "Could not find compiler set in environment variable C:\n$ENV{DC}.")
ENDIF(NOT EXISTS ${CMAKE_D_COMPILER_INIT})
ENDIF($ENV{DC} MATCHES ".+")
# next try prefer the compiler specified by the generator
IF(CMAKE_GENERATOR_D)
IF(NOT CMAKE_D_COMPILER_INIT)
SET(CMAKE_D_COMPILER_INIT ${CMAKE_GENERATOR_D})
ENDIF(NOT CMAKE_D_COMPILER_INIT)
ENDIF(CMAKE_GENERATOR_D)
# finally list compilers to try
IF(CMAKE_D_COMPILER_INIT)
SET(CMAKE_D_COMPILER_LIST ${CMAKE_D_COMPILER_INIT})
ELSE(CMAKE_D_COMPILER_INIT)
SET(CMAKE_D_COMPILER_LIST ${_CMAKE_TOOLCHAIN_PREFIX}gdc ${_CMAKE_TOOLCHAIN_PREFIX}dmd)
ENDIF(CMAKE_D_COMPILER_INIT)
# Find the compiler.
IF (_CMAKE_USER_D_COMPILER_PATH)
FIND_PROGRAM(CMAKE_D_COMPILER NAMES ${CMAKE_D_COMPILER_LIST} PATHS ${_CMAKE_USER_D_COMPILER_PATH} DOC "D compiler" NO_DEFAULT_PATH)
ENDIF (_CMAKE_USER_D_COMPILER_PATH)
FIND_PROGRAM(CMAKE_D_COMPILER NAMES ${CMAKE_D_COMPILER_LIST} DOC "D compiler")
IF(CMAKE_D_COMPILER_INIT AND NOT CMAKE_D_COMPILER)
SET(CMAKE_D_COMPILER "${CMAKE_D_COMPILER_INIT}" CACHE FILEPATH "D compiler" FORCE)
ENDIF(CMAKE_D_COMPILER_INIT AND NOT CMAKE_D_COMPILER)
ELSE (NOT CMAKE_D_COMPILER)
# we only get here if CMAKE_D_COMPILER was specified using -D or a pre-made CMakeCache.txt
# (e.g. via ctest) or set in CMAKE_TOOLCHAIN_FILE
# if CMAKE_D_COMPILER is a list of length 2, use the first item as
# CMAKE_D_COMPILER and the 2nd one as CMAKE_D_COMPILER_ARG1
LIST(LENGTH CMAKE_D_COMPILER _CMAKE_D_COMPILER_LIST_LENGTH)
IF("${_CMAKE_D_COMPILER_LIST_LENGTH}" EQUAL 2)
LIST(GET CMAKE_D_COMPILER 1 CMAKE_D_COMPILER_ARG1)
LIST(GET CMAKE_D_COMPILER 0 CMAKE_D_COMPILER)
ENDIF("${_CMAKE_D_COMPILER_LIST_LENGTH}" EQUAL 2)
# if a compiler was specified by the user but without path,
# now try to find it with the full path
# if it is found, force it into the cache,
# if not, don't overwrite the setting (which was given by the user) with "NOTFOUND"
# if the C compiler already had a path, reuse it for searching the CXX compiler
GET_FILENAME_COMPONENT(_CMAKE_USER_D_COMPILER_PATH "${CMAKE_D_COMPILER}" PATH)
IF(NOT _CMAKE_USER_D_COMPILER_PATH)
FIND_PROGRAM(CMAKE_D_COMPILER_WITH_PATH NAMES ${CMAKE_D_COMPILER})
MARK_AS_ADVANCED(CMAKE_D_COMPILER_WITH_PATH)
IF(CMAKE_D_COMPILER_WITH_PATH)
SET(CMAKE_D_COMPILER ${CMAKE_D_COMPILER_WITH_PATH} CACHE STRING "D compiler" FORCE)
ENDIF(CMAKE_D_COMPILER_WITH_PATH)
ENDIF(NOT _CMAKE_USER_D_COMPILER_PATH)
ENDIF(NOT CMAKE_D_COMPILER)
MARK_AS_ADVANCED(CMAKE_D_COMPILER)
IF (NOT _CMAKE_TOOLCHAIN_LOCATION)
GET_FILENAME_COMPONENT(_CMAKE_TOOLCHAIN_LOCATION "${CMAKE_D_COMPILER}" PATH)
ENDIF (NOT _CMAKE_TOOLCHAIN_LOCATION)
# Build a small source file to identify the compiler.
IF(${CMAKE_GENERATOR} MATCHES "Visual Studio")
SET(CMAKE_D_COMPILER_ID_RUN 1)
SET(CMAKE_D_PLATFORM_ID "Windows")
# TODO: Set the compiler id. It is probably MSVC but
# the user may be using an integrated Intel compiler.
# SET(CMAKE_D_COMPILER_ID "MSVC")
ENDIF(${CMAKE_GENERATOR} MATCHES "Visual Studio")
IF(NOT CMAKE_D_COMPILER_ID_RUN)
SET(CMAKE_D_COMPILER_ID_RUN 1)
# Each entry in this list is a set of extra flags to try
# adding to the compile line to see if it helps produce
# a valid identification file.
SET(CMAKE_D_COMPILER_ID_TEST_FLAGS
# Try compiling to an object file only.
"-c"
)
# Try to identify the compiler.
SET(CMAKE_D_COMPILER_ID)
FIND_FILE(CMAKE_PLATFORM_ID_CONTENT_FILE CMakePlatformId.di.in
PATHS ${CMAKE_ROOT}/Modules ${CMAKE_MODULE_PATH})
FILE(READ ${CMAKE_PLATFORM_ID_CONTENT_FILE} CMAKE_D_COMPILER_ID_PLATFORM_CONTENT)
INCLUDE(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerId.cmake)
CMAKE_DETERMINE_COMPILER_ID(D DFLAGS CMakeDCompilerId.d)
# Set old compiler and platform id variables.
IF("${CMAKE_D_COMPILER_ID}" MATCHES "GNU")
SET(CMAKE_COMPILER_IS_GDC 1)
ENDIF("${CMAKE_D_COMPILER_ID}" MATCHES "GNU")
IF("${CMAKE_D_PLATFORM_ID}" MATCHES "MinGW")
SET(CMAKE_COMPILER_IS_MINGW 1)
ELSEIF("${CMAKE_D_PLATFORM_ID}" MATCHES "Cygwin")
SET(CMAKE_COMPILER_IS_CYGWIN 1)
ENDIF("${CMAKE_D_PLATFORM_ID}" MATCHES "MinGW")
ENDIF(NOT CMAKE_D_COMPILER_ID_RUN)
INCLUDE(CMakeFindBinUtils)
IF(MSVC_D_ARCHITECTURE_ID)
SET(SET_MSVC_D_ARCHITECTURE_ID
"SET(MSVC_D_ARCHITECTURE_ID ${MSVC_D_ARCHITECTURE_ID})")
ENDIF(MSVC_D_ARCHITECTURE_ID)
# configure variables set in this file for fast reload later on
FIND_FILE(CMAKE_D_COMPILER_CMAKE_IN CMakeDCompiler.cmake.in
PATHS ${CMAKE_ROOT} ${CMAKE_MODULE_PATH})
CONFIGURE_FILE(${CMAKE_D_COMPILER_CMAKE_IN}
${CMAKE_PLATFORM_INFO_DIR}/CMakeDCompiler.cmake
@ONLY IMMEDIATE # IMMEDIATE must be here for compatibility mode <= 2.0
)
SET(CMAKE_D_COMPILER_ENV_VAR "DC")