CMake/Modules/CMakeDetermineFortranCompil...

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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
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# 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
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# 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")
set(_version_info "")
foreach(m MAJOR MINOR PATCH TWEAK)
set(_COMP "_${m}")
set(_version_info "${_version_info}
#if defined(COMPILER_VERSION${_COMP})")
foreach(d 1 2 3 4 5 6 7 8)
set(_version_info "${_version_info}
# undef DEC
# undef HEX
# define DEC(n) DEC_${d}(n)
# define HEX(n) HEX_${d}(n)
# if COMPILER_VERSION${_COMP} == 0
PRINT *, 'INFO:compiler_version${_COMP}_digit_${d}[0]'
# elif COMPILER_VERSION${_COMP} == 1
PRINT *, 'INFO:compiler_version${_COMP}_digit_${d}[1]'
# elif COMPILER_VERSION${_COMP} == 2
PRINT *, 'INFO:compiler_version${_COMP}_digit_${d}[2]'
# elif COMPILER_VERSION${_COMP} == 3
PRINT *, 'INFO:compiler_version${_COMP}_digit_${d}[3]'
# elif COMPILER_VERSION${_COMP} == 4
PRINT *, 'INFO:compiler_version${_COMP}_digit_${d}[4]'
# elif COMPILER_VERSION${_COMP} == 5
PRINT *, 'INFO:compiler_version${_COMP}_digit_${d}[5]'
# elif COMPILER_VERSION${_COMP} == 6
PRINT *, 'INFO:compiler_version${_COMP}_digit_${d}[6]'
# elif COMPILER_VERSION${_COMP} == 7
PRINT *, 'INFO:compiler_version${_COMP}_digit_${d}[7]'
# elif COMPILER_VERSION${_COMP} == 8
PRINT *, 'INFO:compiler_version${_COMP}_digit_${d}[8]'
# elif COMPILER_VERSION${_COMP} == 9
PRINT *, 'INFO:compiler_version${_COMP}_digit_${d}[9]'
# endif
")
endforeach()
set(_version_info "${_version_info}
#endif")
endforeach()
set(CMAKE_Fortran_COMPILER_ID_VERSION_INFO "${_version_info}")
unset(_version_info)
unset(_COMP)
# Try to identify the compiler.
set(CMAKE_Fortran_COMPILER_ID)
include(${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("${CMAKE_COMPILER_OUTPUT}" MATCHES "THIS_IS_CYGWIN")
set(CMAKE_Fortran_PLATFORM_ID "Cygwin")
endif()
endif()
endif()
endif()
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# Set old compiler and platform id variables.
if(CMAKE_Fortran_COMPILER_ID MATCHES "GNU")
set(CMAKE_COMPILER_IS_GNUG77 1)
endif()
if(CMAKE_Fortran_PLATFORM_ID MATCHES "MinGW")
set(CMAKE_COMPILER_IS_MINGW 1)
elseif(CMAKE_Fortran_PLATFORM_ID MATCHES "Cygwin")
set(CMAKE_COMPILER_IS_CYGWIN 1)
endif()
endif()
if (NOT _CMAKE_TOOLCHAIN_LOCATION)
get_filename_component(_CMAKE_TOOLCHAIN_LOCATION "${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 ${MSVC_Fortran_ARCHITECTURE_ID})")
endif()
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# configure variables set in this file for fast reload later on
configure_file(${CMAKE_ROOT}/Modules/CMakeFortranCompiler.cmake.in
Make platform information files specific to the CMake version At the top of a build tree we configure inside the CMakeFiles directory files such as "CMakeSystem.cmake" and "CMake<lang>Compiler.cmake" to save information detected about the system and compilers in use. The method of detection and the exact results store varies across CMake versions as things improve. This leads to problems when loading files configured by a different version of CMake. Previously we ignored such existing files only if the major.minor part of the CMake version component changed, and depended on the CMakeCache.txt to tell us the last version of CMake that wrote the files. This led to problems if the user deletes the CMakeCache.txt or we add required information to the files in a patch-level release of CMake (still a "feature point" release by modern CMake versioning convention). Ensure that we always have version-consistent platform information files by storing them in a subdirectory named with the CMake version. Every version of CMake will do its own system and compiler identification checks even when a build tree has already been configured by another version of CMake. Stored results will not clobber those from other versions of CMake which may be run again on the same tree in the future. Loaded results will match what the system and language modules expect. Rename the undocumented variable CMAKE_PLATFORM_ROOT_BIN to CMAKE_PLATFORM_INFO_DIR to clarify its purpose. The new variable points at the version-specific directory while the old variable did not.
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${CMAKE_PLATFORM_INFO_DIR}/CMakeFortranCompiler.cmake
@ONLY
)
set(CMAKE_Fortran_COMPILER_ENV_VAR "FC")