CMake/Modules/CMakeDetermineFortranCompiler.cmake
Brad King 38aab37962 Set CMAKE_<lang>_COMPILER_ID for VS generators
Currently the VS generators do not support Intel C/C++ .icproj files and
the MS tools do not include a Fortran compiler.  Therefore we can always
set the C and CXX compiler IDs to "MSVC" and the Fortran ID to "Intel".

This fixes a regression in support for the Intel Fortran compiler under
the VS plugin introduced by commit cd43636c (Modernize Intel compiler
info on Windows, 2010-12-16).  The commit moved the compiler information
into platform files that only load when the proper compiler id is set.
It worked for the NMake Makefiles generator but not for the VS IDE
generator because it did not set the compiler id.
2011-09-02 08:56:01 -04:00

229 lines
10 KiB
CMake

#=============================================================================
# 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
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(CMAKE_Fortran_FLAGS_ENV_INIT)
IF(EXISTS ${CMAKE_Fortran_COMPILER_INIT})
ELSE(EXISTS ${CMAKE_Fortran_COMPILER_INIT})
MESSAGE(FATAL_ERROR "Could not find compiler set in environment variable FC:\n$ENV{FC}.")
ENDIF(EXISTS ${CMAKE_Fortran_COMPILER_INIT})
ENDIF($ENV{FC} MATCHES ".+")
# 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(NOT CMAKE_Fortran_COMPILER_INIT)
ENDIF(CMAKE_GENERATOR_FC)
# finally list compilers to try
IF(CMAKE_Fortran_COMPILER_INIT)
SET(CMAKE_Fortran_COMPILER_LIST ${CMAKE_Fortran_COMPILER_INIT})
ELSE(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: 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 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 pgf90 pgf77)
SET(_Fortran_COMPILER_NAMES_PathScale pathf2003 pathf95 pathf90)
SET(_Fortran_COMPILER_NAMES_XL xlf)
SET(_Fortran_COMPILER_NAMES_VisualAge xlf95 xlf90 xlf)
# Prefer vendors matching the C and C++ compilers.
SET(CMAKE_Fortran_COMPILER_LIST
${_Fortran_COMPILER_NAMES_${CMAKE_C_COMPILER_ID}}
${_Fortran_COMPILER_NAMES_${CMAKE_CXX_COMPILER_ID}}
${CMAKE_Fortran_COMPILER_LIST})
LIST(REMOVE_DUPLICATES CMAKE_Fortran_COMPILER_LIST)
ENDIF(CMAKE_Fortran_COMPILER_INIT)
# Look for directories containing the C and C++ compilers.
SET(_Fortran_COMPILER_HINTS)
FOREACH(lang C CXX)
IF(CMAKE_${lang}_COMPILER AND IS_ABSOLUTE "${CMAKE_${lang}_COMPILER}")
GET_FILENAME_COMPONENT(_hint "${CMAKE_${lang}_COMPILER}" PATH)
IF(IS_DIRECTORY "${_hint}")
LIST(APPEND _Fortran_COMPILER_HINTS "${_hint}")
ENDIF()
SET(_hint)
ENDIF()
ENDFOREACH()
# Find the compiler.
IF(_Fortran_COMPILER_HINTS)
# Prefer directories containing C and C++ compilers.
LIST(REMOVE_DUPLICATES _Fortran_COMPILER_HINTS)
FIND_PROGRAM(CMAKE_Fortran_COMPILER
NAMES ${CMAKE_Fortran_COMPILER_LIST}
PATHS ${_Fortran_COMPILER_HINTS}
NO_DEFAULT_PATH
DOC "Fortran compiler")
ENDIF()
FIND_PROGRAM(CMAKE_Fortran_COMPILER NAMES ${CMAKE_Fortran_COMPILER_LIST} DOC "Fortran compiler")
IF(CMAKE_Fortran_COMPILER_INIT AND NOT CMAKE_Fortran_COMPILER)
SET(CMAKE_Fortran_COMPILER "${CMAKE_Fortran_COMPILER_INIT}" CACHE FILEPATH "Fortran compiler" FORCE)
ENDIF(CMAKE_Fortran_COMPILER_INIT AND NOT CMAKE_Fortran_COMPILER)
ELSE(NOT CMAKE_Fortran_COMPILER)
# we only get here if CMAKE_Fortran_COMPILER was specified using -D or a pre-made CMakeCache.txt
# (e.g. via ctest) or set in CMAKE_TOOLCHAIN_FILE
# if CMAKE_Fortran_COMPILER is a list of length 2, use the first item as
# CMAKE_Fortran_COMPILER and the 2nd one as CMAKE_Fortran_COMPILER_ARG1
LIST(LENGTH CMAKE_Fortran_COMPILER _CMAKE_Fortran_COMPILER_LIST_LENGTH)
IF("${_CMAKE_Fortran_COMPILER_LIST_LENGTH}" EQUAL 2)
LIST(GET CMAKE_Fortran_COMPILER 1 CMAKE_Fortran_COMPILER_ARG1)
LIST(GET CMAKE_Fortran_COMPILER 0 CMAKE_Fortran_COMPILER)
ENDIF("${_CMAKE_Fortran_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_Fortran_COMPILER_PATH "${CMAKE_Fortran_COMPILER}" PATH)
IF(NOT _CMAKE_USER_Fortran_COMPILER_PATH)
FIND_PROGRAM(CMAKE_Fortran_COMPILER_WITH_PATH NAMES ${CMAKE_Fortran_COMPILER})
MARK_AS_ADVANCED(CMAKE_Fortran_COMPILER_WITH_PATH)
IF(CMAKE_Fortran_COMPILER_WITH_PATH)
SET(CMAKE_Fortran_COMPILER ${CMAKE_Fortran_COMPILER_WITH_PATH}
CACHE STRING "Fortran compiler" FORCE)
ENDIF(CMAKE_Fortran_COMPILER_WITH_PATH)
ENDIF(NOT _CMAKE_USER_Fortran_COMPILER_PATH)
ENDIF(NOT CMAKE_Fortran_COMPILER)
MARK_AS_ADVANCED(CMAKE_Fortran_COMPILER)
# Build a small source file to identify the compiler.
IF(${CMAKE_GENERATOR} MATCHES "Visual Studio")
SET(CMAKE_Fortran_COMPILER_ID_RUN 1)
SET(CMAKE_Fortran_PLATFORM_ID "Windows")
SET(CMAKE_Fortran_COMPILER_ID "Intel")
ENDIF(${CMAKE_GENERATOR} MATCHES "Visual Studio")
IF(NOT CMAKE_Fortran_COMPILER_ID_RUN)
SET(CMAKE_Fortran_COMPILER_ID_RUN 1)
# Each entry in this list is a set of extra flags to try
# adding to the compile line to see if it helps produce
# a valid identification executable.
SET(CMAKE_Fortran_COMPILER_ID_TEST_FLAGS
# Try compiling to an object file only.
"-c"
# Intel on windows does not preprocess by default.
"-fpp"
)
# Table of per-vendor compiler id flags with expected output.
LIST(APPEND CMAKE_Fortran_COMPILER_ID_VENDORS Compaq)
SET(CMAKE_Fortran_COMPILER_ID_VENDOR_FLAGS_Compaq "-what")
SET(CMAKE_Fortran_COMPILER_ID_VENDOR_REGEX_Compaq "Compaq Visual Fortran")
LIST(APPEND CMAKE_Fortran_COMPILER_ID_VENDORS NAG) # Numerical Algorithms Group
SET(CMAKE_Fortran_COMPILER_ID_VENDOR_FLAGS_NAG "-V")
SET(CMAKE_Fortran_COMPILER_ID_VENDOR_REGEX_NAG "NAG Fortran Compiler")
# Try to identify the compiler.
SET(CMAKE_Fortran_COMPILER_ID)
INCLUDE(${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${CMAKE_COMPILER_OUTPUT}\n\n")
ELSE("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_GNU.*" )
FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"Determining if the Fortran compiler is GNU failed with "
"the following output:\n${CMAKE_COMPILER_OUTPUT}\n\n")
ENDIF("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_GNU.*" )
IF(NOT CMAKE_Fortran_PLATFORM_ID)
IF("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_MINGW.*" )
SET(CMAKE_Fortran_PLATFORM_ID "MinGW")
ENDIF("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_MINGW.*" )
IF("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_CYGWIN.*" )
SET(CMAKE_Fortran_PLATFORM_ID "Cygwin")
ENDIF("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_CYGWIN.*" )
ENDIF(NOT CMAKE_Fortran_PLATFORM_ID)
ENDIF(NOT CMAKE_COMPILER_RETURN)
ENDIF(NOT CMAKE_Fortran_COMPILER_ID)
# Set old compiler and platform id variables.
IF("${CMAKE_Fortran_COMPILER_ID}" MATCHES "GNU")
SET(CMAKE_COMPILER_IS_GNUG77 1)
ENDIF("${CMAKE_Fortran_COMPILER_ID}" MATCHES "GNU")
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("${CMAKE_Fortran_PLATFORM_ID}" MATCHES "MinGW")
ENDIF(NOT CMAKE_Fortran_COMPILER_ID_RUN)
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
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeFortranCompiler.cmake
@ONLY IMMEDIATE # IMMEDIATE must be here for compatibility mode <= 2.0
)
SET(CMAKE_Fortran_COMPILER_ENV_VAR "FC")