CMake/Modules/CMakeDetermineFortranCompil...

138 lines
6.2 KiB
CMake

# determine the compiler to use for C programs
# NOTE, a generator may set CMAKE_C_COMPILER before
# loading this file to force a compiler.
# use environment variable CCC first if defined by user, next use
# the cmake variable CMAKE_GENERATOR_CC 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
# 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.
# NOTE for testing purposes this list is DUPLICATED in
# CMake/Source/CMakeLists.txt, IF YOU CHANGE THIS LIST,
# PLEASE UPDATE THAT FILE AS WELL!
SET(CMAKE_Fortran_COMPILER_LIST
ifort ifc efc f95 pgf95 lf95 xlf95 fort gfortran g95 f90
pgf90 xlf90 epcf90 fort77 frt pgf77 xlf fl32 af77 g77 f77
)
ENDIF(CMAKE_Fortran_COMPILER_INIT)
# Find the compiler.
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)
ENDIF(NOT CMAKE_Fortran_COMPILER)
MARK_AS_ADVANCED(CMAKE_Fortran_COMPILER)
FIND_PROGRAM(CMAKE_AR NAMES ar )
FIND_PROGRAM(CMAKE_RANLIB NAMES ranlib)
IF(NOT CMAKE_RANLIB)
SET(CMAKE_RANLIB : CACHE INTERNAL "noop for ranlib")
ENDIF(NOT CMAKE_RANLIB)
MARK_AS_ADVANCED(CMAKE_RANLIB)
# Build a small source file to identify the compiler.
IF(${CMAKE_GENERATOR} MATCHES "Visual Studio")
SET(CMAKE_Fortran_COMPILER_ID_RUN 1)
SET(CMAKE_Fortran_PLATFORM_ID "Windows")
# TODO: Set the compiler id. It is probably MSVC but
# the user may be using an integrated Intel compiler.
# SET(CMAKE_Fortran_COMPILER_ID "MSVC")
ENDIF(${CMAKE_GENERATOR} MATCHES "Visual Studio")
IF(NOT CMAKE_Fortran_COMPILER_ID_RUN)
SET(CMAKE_Fortran_COMPILER_ID_RUN 1)
# Try to identify the compiler.
SET(CMAKE_Fortran_COMPILER_ID)
INCLUDE(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerId.cmake)
CMAKE_DETERMINE_COMPILER_ID(Fortran FFLAGS ${CMAKE_ROOT}/Modules/CMakeFortranCompilerId.F90)
# Fall back to old is-GNU test.
IF(NOT CMAKE_Fortran_COMPILER_ID)
EXEC_PROGRAM(${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("${CMAKE_Fortran_PLATFORM_ID}" MATCHES "MinGW")
ENDIF(NOT CMAKE_Fortran_COMPILER_ID_RUN)
# configure variables set in this file for fast reload later on
CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CMakeFortranCompiler.cmake.in
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeFortranCompiler.cmake IMMEDIATE)
MARK_AS_ADVANCED(CMAKE_AR)
SET(CMAKE_Fortran_COMPILER_ENV_VAR "FC")