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#=============================================================================
# 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(NOT $ENV{FC} STREQUAL "")
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")
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