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|
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file LICENSE.rst or https://cmake.org/licensing for details.
# 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}-Determine-Fortran OPTIONAL)
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 FC
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 "Arguments 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:
# ftn: Cray fortran compiler wrapper
# gfortran: putative GNU Fortran 95+ compiler (in progress)
# frt: Fujitsu Fortran compiler
# pathf90/pathf95/pathf2003: PathScale Fortran compiler
# pgfortran: Portland Group Fortran compilers
# nvfortran: NVHPC Fotran compiler
# flang: Flang Fortran compiler
# xlf: IBM (AIX) Fortran compiler
# 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
# ifx: Intel Fortran LLVM-based compiler
# ifort: Intel Classic Fortran compiler
# nagfor: NAG Fortran compiler
# lfortran: LFortran Fortran Compiler
#
# GNU is last to be searched,
# so if you paid for a compiler it is picked by default.
set(CMAKE_Fortran_COMPILER_LIST
ftn
ifx ifort nvfortran pgfortran lf95 xlf fort
flang lfortran frt nagfor
gfortran
)
# Vendor-specific compiler names.
set(_Fortran_COMPILER_NAMES_LCC lfortran gfortran)
set(_Fortran_COMPILER_NAMES_GNU gfortran)
set(_Fortran_COMPILER_NAMES_Intel ifort ifc efc ifx)
set(_Fortran_COMPILER_NAMES_Absoft af95 af90 af77)
set(_Fortran_COMPILER_NAMES_PGI pgf95 pgfortran pgf90 pgf77)
set(_Fortran_COMPILER_NAMES_Flang flang)
set(_Fortran_COMPILER_NAMES_LLVMFlang flang)
set(_Fortran_COMPILER_NAMES_PathScale pathf2003 pathf95 pathf90)
set(_Fortran_COMPILER_NAMES_XL xlf)
set(_Fortran_COMPILER_NAMES_VisualAge xlf95 xlf90 xlf)
set(_Fortran_COMPILER_NAMES_NAG nagfor)
set(_Fortran_COMPILER_NAMES_NVHPC nvfortran)
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_FIRST
# Get verbose output to help distinguish compilers.
"-v"
# Try compiling to an object file only, with verbose output.
"-v -c"
)
set(CMAKE_Fortran_COMPILER_ID_TEST_FLAGS
# Try compiling to an object file only.
"-c"
# Intel on windows does not preprocess by default.
"-fpp"
# LFortran does not preprocess by default.
"--cpp-infer"
)
endif()
if(CMAKE_Fortran_COMPILER_TARGET)
set(CMAKE_Fortran_COMPILER_ID_TEST_FLAGS_FIRST "-v -c --target=${CMAKE_Fortran_COMPILER_TARGET}")
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 output regular expressions.
list(APPEND CMAKE_Fortran_COMPILER_ID_MATCH_VENDORS CCur)
set(CMAKE_Fortran_COMPILER_ID_MATCH_VENDOR_REGEX_CCur "Concurrent Fortran [0-9]+ Compiler")
# 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")
# Match the link line from xcodebuild output of the form
# Ld ...
# ...
# /path/to/cc ...CompilerIdFortran/...
# to extract the compiler front-end for the language.
set(CMAKE_Fortran_COMPILER_ID_TOOL_MATCH_REGEX "\nLd[^\n]*(\n[ \t]+[^\n]*)*\n[ \t]+([^ \t\r\n]+)[^\r\n]*-o[^\r\n]*CompilerIdFortran/(\\./)?(CompilerIdFortran.xctest/)?CompilerIdFortran[ \t\n\\\"]")
set(CMAKE_Fortran_COMPILER_ID_TOOL_MATCH_INDEX 2)
set(_version_info "")
foreach(m IN ITEMS MAJOR MINOR PATCH TWEAK)
set(_COMP "_${m}")
string(APPEND _version_info "
#if defined(COMPILER_VERSION${_COMP})")
foreach(d RANGE 1 8)
string(APPEND _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()
string(APPEND _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)
_cmake_find_compiler_sysroot(Fortran)
# Fall back to old is-GNU test.
if(NOT CMAKE_Fortran_COMPILER_ID)
execute_process(COMMAND ${CMAKE_Fortran_COMPILER} ${CMAKE_Fortran_COMPILER_ID_FLAGS_LIST} -E "${CMAKE_ROOT}/Modules/CMakeTestGNU.c"
OUTPUT_VARIABLE CMAKE_COMPILER_OUTPUT RESULT_VARIABLE CMAKE_COMPILER_RETURN)
if(NOT CMAKE_COMPILER_RETURN)
if(CMAKE_COMPILER_OUTPUT MATCHES "THIS_IS_GNU")
set(CMAKE_Fortran_COMPILER_ID "GNU")
message(CONFIGURE_LOG
"Determining if the Fortran compiler is GNU succeeded with "
"the following output:\n${CMAKE_COMPILER_OUTPUT}\n\n")
else()
message(CONFIGURE_LOG
"Determining if the Fortran compiler is GNU failed with "
"the following output:\n${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()
# Fall back for GNU MINGW, which is not always detected correctly
# (__MINGW32__ is defined for the C language, but perhaps not for Fortran!)
if(CMAKE_Fortran_COMPILER_ID MATCHES "GNU" AND NOT CMAKE_Fortran_PLATFORM_ID)
execute_process(COMMAND ${CMAKE_Fortran_COMPILER} ${CMAKE_Fortran_COMPILER_ID_FLAGS_LIST} -E "${CMAKE_ROOT}/Modules/CMakeTestGNU.c"
OUTPUT_VARIABLE CMAKE_COMPILER_OUTPUT RESULT_VARIABLE CMAKE_COMPILER_RETURN)
if(NOT CMAKE_COMPILER_RETURN)
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()
# Set old compiler and platform id variables.
if(CMAKE_Fortran_COMPILER_ID MATCHES "GNU")
set(CMAKE_COMPILER_IS_GNUG77 1)
endif()
endif()
if("${CMAKE_Fortran_COMPILER_ID};${CMAKE_Fortran_SIMULATE_ID}" STREQUAL "LLVMFlang;MSVC")
# With LLVMFlang targeting the MSVC ABI we link using lld-link.
# Detect the implicit link information from the compiler driver
# so we can explicitly pass it to the linker.
include(${CMAKE_ROOT}/Modules/CMakeParseImplicitLinkInfo.cmake)
set(_LLVMFlang_COMMAND "${CMAKE_Fortran_COMPILER}" "-###" ${CMAKE_CURRENT_LIST_DIR}/CMakeFortranCompilerABI.F)
if(CMAKE_Fortran_COMPILER_TARGET)
list(APPEND _LLVMFlang_COMMAND --target=${CMAKE_Fortran_COMPILER_TARGET})
endif()
execute_process(COMMAND ${_LLVMFlang_COMMAND}
OUTPUT_VARIABLE _LLVMFlang_OUTPUT
ERROR_VARIABLE _LLVMFlang_OUTPUT
RESULT_VARIABLE _LLVMFlang_RESULT)
string(JOIN "\" \"" _LLVMFlang_COMMAND ${_LLVMFlang_COMMAND})
message(CONFIGURE_LOG
"Running the Fortran compiler: \"${_LLVMFlang_COMMAND}\"\n"
"${_LLVMFlang_OUTPUT}"
)
if(_LLVMFlang_RESULT EQUAL 0)
cmake_parse_implicit_link_info("${_LLVMFlang_OUTPUT}"
CMAKE_Fortran_IMPLICIT_LINK_LIBRARIES
CMAKE_Fortran_IMPLICIT_LINK_DIRECTORIES
CMAKE_Fortran_IMPLICIT_LINK_FRAMEWORK_DIRECTORIES
log
"${CMAKE_Fortran_IMPLICIT_OBJECT_REGEX}"
LANGUAGE Fortran)
message(CONFIGURE_LOG
"Parsed Fortran implicit link information:\n"
"${log}\n"
)
set(_CMAKE_Fortran_IMPLICIT_LINK_INFORMATION_DETERMINED_EARLY 1)
if("x${CMAKE_Fortran_COMPILER_ARCHITECTURE_ID}" STREQUAL "xARM64" AND CMAKE_Fortran_COMPILER_VERSION VERSION_LESS 18.0)
# LLVMFlang < 18.0 does not add `-defaultlib:` fields to object
# files to specify link dependencies on its runtime libraries.
# For now, we add them ourselves.
list(APPEND CMAKE_Fortran_IMPLICIT_LINK_LIBRARIES "clang_rt.builtins-aarch64.lib")
endif()
endif()
unset(_LLVMFlang_COMMAND)
unset(_LLVMFlang_OUTPUT)
unset(_LLVMFlang_RESULT)
endif()
if (NOT _CMAKE_TOOLCHAIN_LOCATION)
get_filename_component(_CMAKE_TOOLCHAIN_LOCATION "${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 (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 ${CMAKE_MATCH_1})
endif ()
endif()
endif ()
set(_CMAKE_PROCESSING_LANGUAGE "Fortran")
include(CMakeFindBinUtils)
include(Compiler/${CMAKE_Fortran_COMPILER_ID}-FindBinUtils OPTIONAL)
unset(_CMAKE_PROCESSING_LANGUAGE)
if(CMAKE_Fortran_XL_CPP)
set(_SET_CMAKE_Fortran_XL_CPP
"set(CMAKE_Fortran_XL_CPP \"${CMAKE_Fortran_XL_CPP}\")")
endif()
if(CMAKE_Fortran_COMPILER_SYSROOT)
string(CONCAT _SET_CMAKE_Fortran_COMPILER_SYSROOT
"set(CMAKE_Fortran_COMPILER_SYSROOT \"${CMAKE_Fortran_COMPILER_SYSROOT}\")\n"
"set(CMAKE_COMPILER_SYSROOT \"${CMAKE_Fortran_COMPILER_SYSROOT}\")")
else()
set(_SET_CMAKE_Fortran_COMPILER_SYSROOT "")
endif()
if(MSVC_Fortran_ARCHITECTURE_ID)
set(SET_MSVC_Fortran_ARCHITECTURE_ID
"set(MSVC_Fortran_ARCHITECTURE_ID ${MSVC_Fortran_ARCHITECTURE_ID})")
endif()
if(CMAKE_Fortran_COMPILER_ID STREQUAL "NVHPC")
set(CMAKE_Fortran_VENDOR_SOURCE_FILE_EXTENSIONS ";cuf;CUF")
endif()
# configure variables set in this file for fast reload later on
configure_file(${CMAKE_ROOT}/Modules/CMakeFortranCompiler.cmake.in
${CMAKE_PLATFORM_INFO_DIR}/CMakeFortranCompiler.cmake
@ONLY
)
set(CMAKE_Fortran_COMPILER_ENV_VAR "FC")
|
