Modules/CMakeDetermineFortranCompiler.cmake - third_party/cmake - Git at Google


 #=============================================================================
 # Copyright 2004-2009 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.)

 # determine the compiler to use for Fortran programs
 # NOTE, a generator may set CMAKE_Fortran_COMPILER before
 # loading this file to force a compiler.
 # use environment variable FC first if defined by user, next use
 # the cmake variable CMAKE_GENERATOR_FC which can be defined by a generator
 # as a default compiler

 include(${CMAKE_ROOT}/Modules/CMakeDetermineCompiler.cmake)
 include(Platform/${CMAKE_SYSTEM_NAME}-Fortran OPTIONAL)
 if(NOT CMAKE_Fortran_COMPILER_NAMES)
   set(CMAKE_Fortran_COMPILER_NAMES f95)
 endif()

 if(${CMAKE_GENERATOR} MATCHES "Visual Studio")
 elseif("${CMAKE_GENERATOR}" MATCHES "Xcode")
   set(CMAKE_Fortran_COMPILER_XCODE_TYPE sourcecode.fortran.f90)
   _cmake_find_compiler_path(Fortran)
 else()
   if(NOT CMAKE_Fortran_COMPILER)
     # prefer the environment variable CC
     if($ENV{FC} MATCHES ".+")
       get_filename_component(CMAKE_Fortran_COMPILER_INIT $ENV{FC} PROGRAM PROGRAM_ARGS CMAKE_Fortran_FLAGS_ENV_INIT)
       if(CMAKE_Fortran_FLAGS_ENV_INIT)
         set(CMAKE_Fortran_COMPILER_ARG1 "${CMAKE_Fortran_FLAGS_ENV_INIT}" CACHE STRING "First argument to Fortran compiler")
       endif()
       if(EXISTS ${CMAKE_Fortran_COMPILER_INIT})
       else()
         message(FATAL_ERROR "Could not find compiler set in environment variable FC:\n$ENV{FC}.")
       endif()
     endif()

     # next try prefer the compiler specified by the generator
     if(CMAKE_GENERATOR_FC)
       if(NOT CMAKE_Fortran_COMPILER_INIT)
         set(CMAKE_Fortran_COMPILER_INIT ${CMAKE_GENERATOR_FC})
       endif()
     endif()

     # finally list compilers to try
     if(NOT CMAKE_Fortran_COMPILER_INIT)
       # Known compilers:
       #  f77/f90/f95: generic compiler names
       #  g77: GNU Fortran 77 compiler
       #  gfortran: putative GNU Fortran 95+ compiler (in progress)
       #  fort77: native F77 compiler under HP-UX (and some older Crays)
       #  frt: Fujitsu F77 compiler
       #  pathf90/pathf95/pathf2003: PathScale Fortran compiler
       #  pgf77/pgf90/pgf95/pgfortran: Portland Group F77/F90/F95 compilers
       #  xlf/xlf90/xlf95: IBM (AIX) F77/F90/F95 compilers
       #  lf95: Lahey-Fujitsu F95 compiler
       #  fl32: Microsoft Fortran 77 "PowerStation" compiler
       #  af77: Apogee F77 compiler for Intergraph hardware running CLIX
       #  epcf90: "Edinburgh Portable Compiler" F90
       #  fort: Compaq (now HP) Fortran 90/95 compiler for Tru64 and Linux/Alpha
       #  ifc: Intel Fortran 95 compiler for Linux/x86
       #  efc: Intel Fortran 95 compiler for IA64
       #
       #  The order is 95 or newer compilers first, then 90,
       #  then 77 or older compilers, gnu is always last in the group,
       #  so if you paid for a compiler it is picked by default.
       set(CMAKE_Fortran_COMPILER_LIST
         ifort ifc af95 af90 efc f95 pathf2003 pathf95 pgf95 pgfortran lf95 xlf95
         fort gfortran gfortran-4 g95 f90 pathf90 pgf90 xlf90 epcf90 fort77
         frt pgf77 xlf fl32 af77 g77 f77
         )

       # Vendor-specific compiler names.
       set(_Fortran_COMPILER_NAMES_GNU       gfortran gfortran-4 g95 g77)
       set(_Fortran_COMPILER_NAMES_Intel     ifort ifc efc)
       set(_Fortran_COMPILER_NAMES_Absoft    af95 af90 af77)
       set(_Fortran_COMPILER_NAMES_PGI       pgf95 pgfortran pgf90 pgf77)
       set(_Fortran_COMPILER_NAMES_PathScale pathf2003 pathf95 pathf90)
       set(_Fortran_COMPILER_NAMES_XL        xlf)
       set(_Fortran_COMPILER_NAMES_VisualAge xlf95 xlf90 xlf)
     endif()

     _cmake_find_compiler(Fortran)

   else()
     _cmake_find_compiler_path(Fortran)
   endif()
   mark_as_advanced(CMAKE_Fortran_COMPILER)

   # 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 executable.
   set(CMAKE_Fortran_COMPILER_ID_TEST_FLAGS
     # Try compiling to an object file only.
     "-c"

     # Intel on windows does not preprocess by default.
     "-fpp"
     )
 endif()

 # Build a small source file to identify the compiler.
 if(NOT CMAKE_Fortran_COMPILER_ID_RUN)
   set(CMAKE_Fortran_COMPILER_ID_RUN 1)

   # Table of per-vendor compiler id flags with expected output.
   list(APPEND CMAKE_Fortran_COMPILER_ID_VENDORS Compaq)
   set(CMAKE_Fortran_COMPILER_ID_VENDOR_FLAGS_Compaq "-what")
   set(CMAKE_Fortran_COMPILER_ID_VENDOR_REGEX_Compaq "Compaq Visual Fortran")
   list(APPEND CMAKE_Fortran_COMPILER_ID_VENDORS NAG) # Numerical Algorithms Group
   set(CMAKE_Fortran_COMPILER_ID_VENDOR_FLAGS_NAG "-V")
   set(CMAKE_Fortran_COMPILER_ID_VENDOR_REGEX_NAG "NAG Fortran Compiler")

   # Try to identify the compiler.
   set(CMAKE_Fortran_COMPILER_ID)
   include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerId.cmake)
   CMAKE_DETERMINE_COMPILER_ID(Fortran FFLAGS CMakeFortranCompilerId.F)

   # Fall back to old is-GNU test.
   if(NOT CMAKE_Fortran_COMPILER_ID)
     exec_program(${CMAKE_Fortran_COMPILER}
       ARGS ${CMAKE_Fortran_COMPILER_ID_FLAGS_LIST} -E "\"${CMAKE_ROOT}/Modules/CMakeTestGNU.c\""
       OUTPUT_VARIABLE CMAKE_COMPILER_OUTPUT RETURN_VALUE CMAKE_COMPILER_RETURN)
     if(NOT CMAKE_COMPILER_RETURN)
       if("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_GNU.*" )
         set(CMAKE_Fortran_COMPILER_ID "GNU")
         file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
           "Determining if the Fortran compiler is GNU succeeded with "
           "the following output:\n${CMAKE_COMPILER_OUTPUT}\n\n")
       else()
         file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
           "Determining if the Fortran compiler is GNU failed with "
           "the following output:\n${CMAKE_COMPILER_OUTPUT}\n\n")
       endif()
       if(NOT CMAKE_Fortran_PLATFORM_ID)
         if("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_MINGW.*" )
           set(CMAKE_Fortran_PLATFORM_ID "MinGW")
         endif()
         if("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_CYGWIN.*" )
           set(CMAKE_Fortran_PLATFORM_ID "Cygwin")
         endif()
       endif()
     endif()
   endif()

   # Set old compiler and platform id variables.
   if("${CMAKE_Fortran_COMPILER_ID}" MATCHES "GNU")
     set(CMAKE_COMPILER_IS_GNUG77 1)
   endif()
   if("${CMAKE_Fortran_PLATFORM_ID}" MATCHES "MinGW")
     set(CMAKE_COMPILER_IS_MINGW 1)
   elseif("${CMAKE_Fortran_PLATFORM_ID}" MATCHES "Cygwin")
     set(CMAKE_COMPILER_IS_CYGWIN 1)
   endif()
 endif()

 if (NOT _CMAKE_TOOLCHAIN_LOCATION)
   get_filename_component(_CMAKE_TOOLCHAIN_LOCATION "${CMAKE_Fortran_COMPILER}" PATH)
 endif ()

 # if we have a fortran cross compiler, they have usually some prefix, like
 # e.g. powerpc-linux-gfortran, arm-elf-gfortran or i586-mingw32msvc-gfortran , optionally
 # with a 3-component version number at the end (e.g. arm-eabi-gcc-4.5.2).
 # The other tools of the toolchain usually have the same prefix
 # NAME_WE cannot be used since then this test will fail for names like
 # "arm-unknown-nto-qnx6.3.0-gcc.exe", where BASENAME would be
 # "arm-unknown-nto-qnx6" instead of the correct "arm-unknown-nto-qnx6.3.0-"
 if (CMAKE_CROSSCOMPILING  AND NOT _CMAKE_TOOLCHAIN_PREFIX)

   if("${CMAKE_Fortran_COMPILER_ID}" MATCHES "GNU")
     get_filename_component(COMPILER_BASENAME "${CMAKE_Fortran_COMPILER}" NAME)
     if (COMPILER_BASENAME MATCHES "^(.+-)g?fortran(-[0-9]+\\.[0-9]+\\.[0-9]+)?(\\.exe)?$")
       set(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_MATCH_1})
     endif ()

     # if "llvm-" is part of the prefix, remove it, since llvm doesn't have its own binutils
     # but uses the regular ar, objcopy, etc. (instead of llvm-objcopy etc.)
     if ("${_CMAKE_TOOLCHAIN_PREFIX}" MATCHES "(.+-)?llvm-$")
       set(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_MATCH_1})
     endif ()
   endif()

 endif ()

 include(CMakeFindBinUtils)

 if(MSVC_Fortran_ARCHITECTURE_ID)
   set(SET_MSVC_Fortran_ARCHITECTURE_ID
     "set(MSVC_Fortran_ARCHITECTURE_ID ${MSVC_Fortran_ARCHITECTURE_ID})")
 endif()
 # configure variables set in this file for fast reload later on
 configure_file(${CMAKE_ROOT}/Modules/CMakeFortranCompiler.cmake.in
   ${CMAKE_PLATFORM_INFO_DIR}/CMakeFortranCompiler.cmake
   @ONLY
   )
 set(CMAKE_Fortran_COMPILER_ENV_VAR "FC")

	#=============================================================================
	# Copyright 2004-2009 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.)

	# determine the compiler to use for Fortran programs
	# NOTE, a generator may set CMAKE_Fortran_COMPILER before
	# loading this file to force a compiler.
	# use environment variable FC first if defined by user, next use
	# the cmake variable CMAKE_GENERATOR_FC which can be defined by a generator
	# as a default compiler

	include(${CMAKE_ROOT}/Modules/CMakeDetermineCompiler.cmake)
	include(Platform/${CMAKE_SYSTEM_NAME}-Fortran OPTIONAL)
	if(NOT CMAKE_Fortran_COMPILER_NAMES)
	set(CMAKE_Fortran_COMPILER_NAMES f95)
	endif()

	if(${CMAKE_GENERATOR} MATCHES "Visual Studio")
	elseif("${CMAKE_GENERATOR}" MATCHES "Xcode")
	set(CMAKE_Fortran_COMPILER_XCODE_TYPE sourcecode.fortran.f90)
	_cmake_find_compiler_path(Fortran)
	else()
	if(NOT CMAKE_Fortran_COMPILER)
	# prefer the environment variable CC
	if($ENV{FC} MATCHES ".+")
	get_filename_component(CMAKE_Fortran_COMPILER_INIT $ENV{FC} PROGRAM PROGRAM_ARGS CMAKE_Fortran_FLAGS_ENV_INIT)
	if(CMAKE_Fortran_FLAGS_ENV_INIT)
	set(CMAKE_Fortran_COMPILER_ARG1 "${CMAKE_Fortran_FLAGS_ENV_INIT}" CACHE STRING "First argument to Fortran compiler")
	endif()
	if(EXISTS ${CMAKE_Fortran_COMPILER_INIT})
	else()
	message(FATAL_ERROR "Could not find compiler set in environment variable FC:\n$ENV{FC}.")
	endif()
	endif()

	# next try prefer the compiler specified by the generator
	if(CMAKE_GENERATOR_FC)
	if(NOT CMAKE_Fortran_COMPILER_INIT)
	set(CMAKE_Fortran_COMPILER_INIT ${CMAKE_GENERATOR_FC})
	endif()
	endif()

	# finally list compilers to try
	if(NOT CMAKE_Fortran_COMPILER_INIT)
	# Known compilers:
	# f77/f90/f95: generic compiler names
	# g77: GNU Fortran 77 compiler
	# gfortran: putative GNU Fortran 95+ compiler (in progress)
	# fort77: native F77 compiler under HP-UX (and some older Crays)
	# frt: Fujitsu F77 compiler
	# pathf90/pathf95/pathf2003: PathScale Fortran compiler
	# pgf77/pgf90/pgf95/pgfortran: Portland Group F77/F90/F95 compilers
	# xlf/xlf90/xlf95: IBM (AIX) F77/F90/F95 compilers
	# lf95: Lahey-Fujitsu F95 compiler
	# fl32: Microsoft Fortran 77 "PowerStation" compiler
	# af77: Apogee F77 compiler for Intergraph hardware running CLIX
	# epcf90: "Edinburgh Portable Compiler" F90
	# fort: Compaq (now HP) Fortran 90/95 compiler for Tru64 and Linux/Alpha
	# ifc: Intel Fortran 95 compiler for Linux/x86
	# efc: Intel Fortran 95 compiler for IA64
	#
	# The order is 95 or newer compilers first, then 90,
	# then 77 or older compilers, gnu is always last in the group,
	# so if you paid for a compiler it is picked by default.
	set(CMAKE_Fortran_COMPILER_LIST
	ifort ifc af95 af90 efc f95 pathf2003 pathf95 pgf95 pgfortran lf95 xlf95
	fort gfortran gfortran-4 g95 f90 pathf90 pgf90 xlf90 epcf90 fort77
	frt pgf77 xlf fl32 af77 g77 f77
	)

	# Vendor-specific compiler names.
	set(_Fortran_COMPILER_NAMES_GNU gfortran gfortran-4 g95 g77)
	set(_Fortran_COMPILER_NAMES_Intel ifort ifc efc)
	set(_Fortran_COMPILER_NAMES_Absoft af95 af90 af77)
	set(_Fortran_COMPILER_NAMES_PGI pgf95 pgfortran pgf90 pgf77)
	set(_Fortran_COMPILER_NAMES_PathScale pathf2003 pathf95 pathf90)
	set(_Fortran_COMPILER_NAMES_XL xlf)
	set(_Fortran_COMPILER_NAMES_VisualAge xlf95 xlf90 xlf)
	endif()

	_cmake_find_compiler(Fortran)

	else()
	_cmake_find_compiler_path(Fortran)
	endif()
	mark_as_advanced(CMAKE_Fortran_COMPILER)

	# 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 executable.
	set(CMAKE_Fortran_COMPILER_ID_TEST_FLAGS
	# Try compiling to an object file only.
	"-c"

	# Intel on windows does not preprocess by default.
	"-fpp"
	)
	endif()

	# Build a small source file to identify the compiler.
	if(NOT CMAKE_Fortran_COMPILER_ID_RUN)
	set(CMAKE_Fortran_COMPILER_ID_RUN 1)

	# Table of per-vendor compiler id flags with expected output.
	list(APPEND CMAKE_Fortran_COMPILER_ID_VENDORS Compaq)
	set(CMAKE_Fortran_COMPILER_ID_VENDOR_FLAGS_Compaq "-what")
	set(CMAKE_Fortran_COMPILER_ID_VENDOR_REGEX_Compaq "Compaq Visual Fortran")
	list(APPEND CMAKE_Fortran_COMPILER_ID_VENDORS NAG) # Numerical Algorithms Group
	set(CMAKE_Fortran_COMPILER_ID_VENDOR_FLAGS_NAG "-V")
	set(CMAKE_Fortran_COMPILER_ID_VENDOR_REGEX_NAG "NAG Fortran Compiler")

	# Try to identify the compiler.
	set(CMAKE_Fortran_COMPILER_ID)
	include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerId.cmake)
	CMAKE_DETERMINE_COMPILER_ID(Fortran FFLAGS CMakeFortranCompilerId.F)

	# Fall back to old is-GNU test.
	if(NOT CMAKE_Fortran_COMPILER_ID)
	exec_program(${CMAKE_Fortran_COMPILER}
	ARGS ${CMAKE_Fortran_COMPILER_ID_FLAGS_LIST} -E "\"${CMAKE_ROOT}/Modules/CMakeTestGNU.c\""
	OUTPUT_VARIABLE CMAKE_COMPILER_OUTPUT RETURN_VALUE CMAKE_COMPILER_RETURN)
	if(NOT CMAKE_COMPILER_RETURN)
	if("${CMAKE_COMPILER_OUTPUT}" MATCHES ".THIS_IS_GNU." )
	set(CMAKE_Fortran_COMPILER_ID "GNU")
	file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
	"Determining if the Fortran compiler is GNU succeeded with "
	"the following output:\n${CMAKE_COMPILER_OUTPUT}\n\n")
	else()
	file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
	"Determining if the Fortran compiler is GNU failed with "
	"the following output:\n${CMAKE_COMPILER_OUTPUT}\n\n")
	endif()
	if(NOT CMAKE_Fortran_PLATFORM_ID)
	if("${CMAKE_COMPILER_OUTPUT}" MATCHES ".THIS_IS_MINGW." )
	set(CMAKE_Fortran_PLATFORM_ID "MinGW")
	endif()
	if("${CMAKE_COMPILER_OUTPUT}" MATCHES ".THIS_IS_CYGWIN." )
	set(CMAKE_Fortran_PLATFORM_ID "Cygwin")
	endif()
	endif()
	endif()
	endif()

	# Set old compiler and platform id variables.
	if("${CMAKE_Fortran_COMPILER_ID}" MATCHES "GNU")
	set(CMAKE_COMPILER_IS_GNUG77 1)
	endif()
	if("${CMAKE_Fortran_PLATFORM_ID}" MATCHES "MinGW")
	set(CMAKE_COMPILER_IS_MINGW 1)
	elseif("${CMAKE_Fortran_PLATFORM_ID}" MATCHES "Cygwin")
	set(CMAKE_COMPILER_IS_CYGWIN 1)
	endif()
	endif()

	if (NOT _CMAKE_TOOLCHAIN_LOCATION)
	get_filename_component(_CMAKE_TOOLCHAIN_LOCATION "${CMAKE_Fortran_COMPILER}" PATH)
	endif ()

	# if we have a fortran cross compiler, they have usually some prefix, like
	# e.g. powerpc-linux-gfortran, arm-elf-gfortran or i586-mingw32msvc-gfortran , optionally
	# with a 3-component version number at the end (e.g. arm-eabi-gcc-4.5.2).
	# The other tools of the toolchain usually have the same prefix
	# NAME_WE cannot be used since then this test will fail for names like
	# "arm-unknown-nto-qnx6.3.0-gcc.exe", where BASENAME would be
	# "arm-unknown-nto-qnx6" instead of the correct "arm-unknown-nto-qnx6.3.0-"
	if (CMAKE_CROSSCOMPILING AND NOT _CMAKE_TOOLCHAIN_PREFIX)

	if("${CMAKE_Fortran_COMPILER_ID}" MATCHES "GNU")
	get_filename_component(COMPILER_BASENAME "${CMAKE_Fortran_COMPILER}" NAME)
	if (COMPILER_BASENAME MATCHES "^(.+-)g?fortran(-[0-9]+\\.[0-9]+\\.[0-9]+)?(\\.exe)?$")
	set(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_MATCH_1})
	endif ()

	# if "llvm-" is part of the prefix, remove it, since llvm doesn't have its own binutils
	# but uses the regular ar, objcopy, etc. (instead of llvm-objcopy etc.)
	if ("${_CMAKE_TOOLCHAIN_PREFIX}" MATCHES "(.+-)?llvm-$")
	set(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_MATCH_1})
	endif ()
	endif()

	endif ()

	include(CMakeFindBinUtils)

	if(MSVC_Fortran_ARCHITECTURE_ID)
	set(SET_MSVC_Fortran_ARCHITECTURE_ID
	"set(MSVC_Fortran_ARCHITECTURE_ID ${MSVC_Fortran_ARCHITECTURE_ID})")
	endif()
	# configure variables set in this file for fast reload later on
	configure_file(${CMAKE_ROOT}/Modules/CMakeFortranCompiler.cmake.in
	${CMAKE_PLATFORM_INFO_DIR}/CMakeFortranCompiler.cmake
	@ONLY
	)
	set(CMAKE_Fortran_COMPILER_ENV_VAR "FC")