CMake/Modules/CMakeDetermineFortranCompil...

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# 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)
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# 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(EXISTS ${CMAKE_Fortran_COMPILER_INIT})
ELSE(EXISTS ${CMAKE_Fortran_COMPILER_INIT})
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MESSAGE(FATAL_ERROR "Could not find compiler set in environment variable FC:\n$ENV{FC}.")
ENDIF(EXISTS ${CMAKE_Fortran_COMPILER_INIT})
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ENDIF($ENV{FC} MATCHES ".+")
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# 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)
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ENDIF(CMAKE_GENERATOR_FC)
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# if no compiler has been specified yet, then look for one
IF(NOT CMAKE_Fortran_COMPILER_INIT)
# if not in the envionment then search for the compiler in the path# 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
SET(CMAKE_Fortran_COMPILER_LIST ifort ifc efc f95 pgf95
lf95 xlf95 fort gfortran f90 pgf90 xlf90 epcf90 f77 fort77 frt pgf77 xlf fl32 af77 g77 )
FIND_PROGRAM(CMAKE_Fortran_COMPILER_FULLPATH NAMES ${CMAKE_Fortran_COMPILER_LIST} )
GET_FILENAME_COMPONENT(CMAKE_Fortran_COMPILER_INIT
${CMAKE_Fortran_COMPILER_FULLPATH} NAME)
SET(CMAKE_Fortran_COMPILER_FULLPATH "${CMAKE_Fortran_COMPILER_FULLPATH}" CACHE INTERNAL "full path to the compiler cmake found")
ENDIF(NOT CMAKE_Fortran_COMPILER_INIT)
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SET(CMAKE_Fortran_COMPILER ${CMAKE_Fortran_COMPILER_INIT} CACHE STRING "Fortran compiler")
ENDIF(NOT CMAKE_Fortran_COMPILER)
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MARK_AS_ADVANCED(CMAKE_Fortran_COMPILER)
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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)
IF(NOT CMAKE_COMPILER_IS_GNUG77_RUN)
# test to see if the Fortran compiler is gnu
IF(CMAKE_Fortran_FLAGS)
SET(CMAKE_BOOT_Fortran_FLAGS ${CMAKE_Fortran_FLAGS})
ELSE(CMAKE_Fortran_FLAGS)
SET(CMAKE_BOOT_Fortran_FLAGS $ENV{FFLAGS})
ENDIF(CMAKE_Fortran_FLAGS)
EXEC_PROGRAM(${CMAKE_Fortran_COMPILER} ARGS ${CMAKE_BOOT_Fortran_FLAGS} -E "\"${CMAKE_ROOT}/Modules/CMakeTestGNU.c\"" OUTPUT_VARIABLE CMAKE_COMPILER_OUTPUT RETURN_VALUE CMAKE_COMPILER_RETURN)
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SET(CMAKE_COMPILER_IS_GNUG77_RUN 1)
IF(NOT CMAKE_COMPILER_RETURN)
IF("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_GNU.*" )
SET(CMAKE_COMPILER_IS_GNUG77 1)
FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeOutput.log
"Determining if the Fortran compiler is GNU succeeded with "
"the following output:\n${CMAKE_COMPILER_OUTPUT}\n\n")
ELSE("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_GNU.*" )
FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeOutput.log
"Determining if the Fortran compiler is GNU failed with "
"the following output:\n${CMAKE_COMPILER_OUTPUT}\n\n")
ENDIF("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_GNU.*" )
IF("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_MINGW.*" )
SET(CMAKE_COMPILER_IS_MINGW 1)
ENDIF("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_MINGW.*" )
IF("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_CYGWIN.*" )
SET(CMAKE_COMPILER_IS_CYGWIN 1)
ENDIF("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_CYGWIN.*" )
ENDIF(NOT CMAKE_COMPILER_RETURN)
ENDIF(NOT CMAKE_COMPILER_IS_GNUG77_RUN)
# configure variables set in this file for fast reload later on
CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CMakeFortranCompiler.cmake.in
${CMAKE_BINARY_DIR}/CMakeFortranCompiler.cmake IMMEDIATE)
MARK_AS_ADVANCED(CMAKE_AR)
SET(CMAKE_Fortran_COMPILER_ENV_VAR "FC")