mirror of
https://github.com/Kitware/CMake.git
synced 2026-01-02 03:39:43 -06:00
e5d9fce03f
Divert LCC compiler as a new one, instead of treating it as GNU. Since old times, Elbrus C/C++/Fortran Compiler (LCC) by MCST has been passing checks for GNU compilers, so it has been identified as GNU. Now, with intent of seriously upstreaming its support, it has been added as a separate LCC compiler, and its version displays not a supported GCC version, but LCC version itself (e.g. LCC 1.25.19 instead of GNU 7.3.0). This commit adds its support for detection, and also converts basically every check like 'is this compiler GNU?' to 'is this compiler GNU or LCC?'. The only places where this check is untouched, is where it regards other platforms where LCC is unavailable (primarily non-Linux), and where it REALLY differs from GNU compiler. Note: this transition may break software that are already ported to Elbrus, but hardly relies that LCC will be detected as GNU; still such software is not known.
304 lines
12 KiB
CMake
304 lines
12 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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# determine the compiler to use for Fortran programs
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# NOTE, a generator may set CMAKE_Fortran_COMPILER before
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# loading this file to force a compiler.
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# use environment variable FC first if defined by user, next use
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# the cmake variable CMAKE_GENERATOR_FC which can be defined by a generator
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# as a default compiler
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include(${CMAKE_ROOT}/Modules/CMakeDetermineCompiler.cmake)
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include(Platform/${CMAKE_SYSTEM_NAME}-Determine-Fortran OPTIONAL)
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include(Platform/${CMAKE_SYSTEM_NAME}-Fortran OPTIONAL)
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if(NOT CMAKE_Fortran_COMPILER_NAMES)
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set(CMAKE_Fortran_COMPILER_NAMES f95)
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endif()
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if(${CMAKE_GENERATOR} MATCHES "Visual Studio")
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elseif("${CMAKE_GENERATOR}" MATCHES "Xcode")
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set(CMAKE_Fortran_COMPILER_XCODE_TYPE sourcecode.fortran.f90)
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_cmake_find_compiler_path(Fortran)
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else()
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if(NOT CMAKE_Fortran_COMPILER)
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# prefer the environment variable CC
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if(NOT $ENV{FC} STREQUAL "")
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get_filename_component(CMAKE_Fortran_COMPILER_INIT $ENV{FC} PROGRAM PROGRAM_ARGS CMAKE_Fortran_FLAGS_ENV_INIT)
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if(CMAKE_Fortran_FLAGS_ENV_INIT)
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set(CMAKE_Fortran_COMPILER_ARG1 "${CMAKE_Fortran_FLAGS_ENV_INIT}" CACHE STRING "Arguments to Fortran compiler")
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endif()
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if(EXISTS ${CMAKE_Fortran_COMPILER_INIT})
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else()
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message(FATAL_ERROR "Could not find compiler set in environment variable FC:\n$ENV{FC}.")
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endif()
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endif()
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# next try prefer the compiler specified by the generator
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if(CMAKE_GENERATOR_FC)
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if(NOT CMAKE_Fortran_COMPILER_INIT)
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set(CMAKE_Fortran_COMPILER_INIT ${CMAKE_GENERATOR_FC})
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endif()
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endif()
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# finally list compilers to try
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if(NOT CMAKE_Fortran_COMPILER_INIT)
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# Known compilers:
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# f77/f90/f95: generic compiler names
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# ftn: Cray fortran compiler wrapper
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# g77: GNU Fortran 77 compiler
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# gfortran: putative GNU Fortran 95+ compiler (in progress)
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# fort77: native F77 compiler under HP-UX (and some older Crays)
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# frt: Fujitsu F77 compiler
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# pathf90/pathf95/pathf2003: PathScale Fortran compiler
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# pgf77/pgf90/pgf95/pgfortran: Portland Group F77/F90/F95 compilers
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# flang: Flang Fortran compiler
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# xlf/xlf90/xlf95: IBM (AIX) F77/F90/F95 compilers
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# lf95: Lahey-Fujitsu F95 compiler
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# fl32: Microsoft Fortran 77 "PowerStation" compiler
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# af77: Apogee F77 compiler for Intergraph hardware running CLIX
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# epcf90: "Edinburgh Portable Compiler" F90
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# fort: Compaq (now HP) Fortran 90/95 compiler for Tru64 and Linux/Alpha
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# ifx: Intel Fortran LLVM-based compiler
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# ifort: Intel Classic Fortran compiler
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# ifc: Intel Fortran 95 compiler for Linux/x86
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# efc: Intel Fortran 95 compiler for IA64
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# nagfor: NAG Fortran compiler
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#
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# The order is 95 or newer compilers first, then 90,
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# then 77 or older compilers, gnu is always last in the group,
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# so if you paid for a compiler it is picked by default.
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if(CMAKE_HOST_WIN32)
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set(CMAKE_Fortran_COMPILER_LIST
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ifort ifx pgf95 pgfortran lf95 fort
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flang gfortran gfortran-4 g95 f90 pgf90
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pgf77 g77 f77 nag
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)
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else()
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set(CMAKE_Fortran_COMPILER_LIST
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ftn
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ifort ifc ifx efc pgf95 pgfortran lf95 xlf95 fort
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flang lfortran gfortran gfortran-4 g95 f90 pgf90
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frt pgf77 xlf g77 f77 nag
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)
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endif()
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# Vendor-specific compiler names.
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set(_Fortran_COMPILER_NAMES_LCC lfortran gfortran)
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set(_Fortran_COMPILER_NAMES_GNU gfortran gfortran-4 g95 g77)
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set(_Fortran_COMPILER_NAMES_Intel ifort ifc efc ifx)
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set(_Fortran_COMPILER_NAMES_Absoft af95 af90 af77)
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set(_Fortran_COMPILER_NAMES_PGI pgf95 pgfortran pgf90 pgf77)
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set(_Fortran_COMPILER_NAMES_Flang flang)
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set(_Fortran_COMPILER_NAMES_PathScale pathf2003 pathf95 pathf90)
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set(_Fortran_COMPILER_NAMES_XL xlf)
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set(_Fortran_COMPILER_NAMES_VisualAge xlf95 xlf90 xlf)
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set(_Fortran_COMPILER_NAMES_NAG nagfor)
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endif()
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_cmake_find_compiler(Fortran)
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else()
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_cmake_find_compiler_path(Fortran)
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endif()
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mark_as_advanced(CMAKE_Fortran_COMPILER)
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# Each entry in this list is a set of extra flags to try
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# adding to the compile line to see if it helps produce
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# a valid identification executable.
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set(CMAKE_Fortran_COMPILER_ID_TEST_FLAGS_FIRST
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# Get verbose output to help distinguish compilers.
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"-v"
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)
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set(CMAKE_Fortran_COMPILER_ID_TEST_FLAGS
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# Try compiling to an object file only.
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"-c"
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# Intel on windows does not preprocess by default.
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"-fpp"
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)
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endif()
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# Build a small source file to identify the compiler.
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if(NOT CMAKE_Fortran_COMPILER_ID_RUN)
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set(CMAKE_Fortran_COMPILER_ID_RUN 1)
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# Table of per-vendor compiler output regular expressions.
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list(APPEND CMAKE_Fortran_COMPILER_ID_MATCH_VENDORS CCur)
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set(CMAKE_Fortran_COMPILER_ID_MATCH_VENDOR_REGEX_CCur "Concurrent Fortran [0-9]+ Compiler")
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# Table of per-vendor compiler id flags with expected output.
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list(APPEND CMAKE_Fortran_COMPILER_ID_VENDORS Compaq)
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set(CMAKE_Fortran_COMPILER_ID_VENDOR_FLAGS_Compaq "-what")
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set(CMAKE_Fortran_COMPILER_ID_VENDOR_REGEX_Compaq "Compaq Visual Fortran")
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list(APPEND CMAKE_Fortran_COMPILER_ID_VENDORS NAG) # Numerical Algorithms Group
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set(CMAKE_Fortran_COMPILER_ID_VENDOR_FLAGS_NAG "-V")
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set(CMAKE_Fortran_COMPILER_ID_VENDOR_REGEX_NAG "NAG Fortran Compiler")
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# Match the link line from xcodebuild output of the form
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# Ld ...
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# ...
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# /path/to/cc ...CompilerIdFortran/...
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# to extract the compiler front-end for the language.
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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\\\"]")
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set(CMAKE_Fortran_COMPILER_ID_TOOL_MATCH_INDEX 2)
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set(_version_info "")
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foreach(m MAJOR MINOR PATCH TWEAK)
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set(_COMP "_${m}")
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string(APPEND _version_info "
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#if defined(COMPILER_VERSION${_COMP})")
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foreach(d 1 2 3 4 5 6 7 8)
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string(APPEND _version_info "
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# undef DEC
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# undef HEX
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# define DEC(n) DEC_${d}(n)
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# define HEX(n) HEX_${d}(n)
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# if COMPILER_VERSION${_COMP} == 0
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PRINT *, 'INFO:compiler_version${_COMP}_digit_${d}[0]'
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# elif COMPILER_VERSION${_COMP} == 1
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PRINT *, 'INFO:compiler_version${_COMP}_digit_${d}[1]'
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# elif COMPILER_VERSION${_COMP} == 2
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PRINT *, 'INFO:compiler_version${_COMP}_digit_${d}[2]'
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# elif COMPILER_VERSION${_COMP} == 3
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PRINT *, 'INFO:compiler_version${_COMP}_digit_${d}[3]'
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# elif COMPILER_VERSION${_COMP} == 4
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PRINT *, 'INFO:compiler_version${_COMP}_digit_${d}[4]'
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# elif COMPILER_VERSION${_COMP} == 5
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PRINT *, 'INFO:compiler_version${_COMP}_digit_${d}[5]'
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# elif COMPILER_VERSION${_COMP} == 6
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PRINT *, 'INFO:compiler_version${_COMP}_digit_${d}[6]'
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# elif COMPILER_VERSION${_COMP} == 7
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PRINT *, 'INFO:compiler_version${_COMP}_digit_${d}[7]'
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# elif COMPILER_VERSION${_COMP} == 8
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PRINT *, 'INFO:compiler_version${_COMP}_digit_${d}[8]'
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# elif COMPILER_VERSION${_COMP} == 9
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PRINT *, 'INFO:compiler_version${_COMP}_digit_${d}[9]'
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# endif
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")
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endforeach()
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string(APPEND _version_info "
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#endif")
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endforeach()
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set(CMAKE_Fortran_COMPILER_ID_VERSION_INFO "${_version_info}")
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unset(_version_info)
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unset(_COMP)
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# Try to identify the compiler.
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set(CMAKE_Fortran_COMPILER_ID)
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include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerId.cmake)
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CMAKE_DETERMINE_COMPILER_ID(Fortran FFLAGS CMakeFortranCompilerId.F)
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_cmake_find_compiler_sysroot(Fortran)
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# Fall back to old is-GNU test.
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if(NOT CMAKE_Fortran_COMPILER_ID)
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execute_process(COMMAND ${CMAKE_Fortran_COMPILER} ${CMAKE_Fortran_COMPILER_ID_FLAGS_LIST} -E "${CMAKE_ROOT}/Modules/CMakeTestGNU.c"
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OUTPUT_VARIABLE CMAKE_COMPILER_OUTPUT RESULT_VARIABLE CMAKE_COMPILER_RETURN)
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if(NOT CMAKE_COMPILER_RETURN)
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if(CMAKE_COMPILER_OUTPUT MATCHES "THIS_IS_GNU")
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set(CMAKE_Fortran_COMPILER_ID "GNU")
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Determining if the Fortran compiler is GNU succeeded with "
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"the following output:\n${CMAKE_COMPILER_OUTPUT}\n\n")
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else()
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Determining if the Fortran compiler is GNU failed with "
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"the following output:\n${CMAKE_COMPILER_OUTPUT}\n\n")
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endif()
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if(NOT CMAKE_Fortran_PLATFORM_ID)
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if(CMAKE_COMPILER_OUTPUT MATCHES "THIS_IS_MINGW")
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set(CMAKE_Fortran_PLATFORM_ID "MinGW")
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endif()
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if(CMAKE_COMPILER_OUTPUT MATCHES "THIS_IS_CYGWIN")
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set(CMAKE_Fortran_PLATFORM_ID "Cygwin")
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endif()
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endif()
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endif()
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endif()
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# Fall back for GNU MINGW, which is not always detected correctly
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# (__MINGW32__ is defined for the C language, but perhaps not for Fortran!)
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if(CMAKE_Fortran_COMPILER_ID MATCHES "GNU" AND NOT CMAKE_Fortran_PLATFORM_ID)
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execute_process(COMMAND ${CMAKE_Fortran_COMPILER} ${CMAKE_Fortran_COMPILER_ID_FLAGS_LIST} -E "${CMAKE_ROOT}/Modules/CMakeTestGNU.c"
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OUTPUT_VARIABLE CMAKE_COMPILER_OUTPUT RESULT_VARIABLE CMAKE_COMPILER_RETURN)
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if(NOT CMAKE_COMPILER_RETURN)
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if(CMAKE_COMPILER_OUTPUT MATCHES "THIS_IS_MINGW")
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set(CMAKE_Fortran_PLATFORM_ID "MinGW")
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endif()
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if(CMAKE_COMPILER_OUTPUT MATCHES "THIS_IS_CYGWIN")
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set(CMAKE_Fortran_PLATFORM_ID "Cygwin")
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endif()
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endif()
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endif()
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# Set old compiler and platform id variables.
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if(CMAKE_Fortran_COMPILER_ID MATCHES "GNU")
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set(CMAKE_COMPILER_IS_GNUG77 1)
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endif()
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endif()
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if (NOT _CMAKE_TOOLCHAIN_LOCATION)
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get_filename_component(_CMAKE_TOOLCHAIN_LOCATION "${CMAKE_Fortran_COMPILER}" PATH)
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endif ()
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# if we have a fortran cross compiler, they have usually some prefix, like
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# e.g. powerpc-linux-gfortran, arm-elf-gfortran or i586-mingw32msvc-gfortran , optionally
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# with a 3-component version number at the end (e.g. arm-eabi-gcc-4.5.2).
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# The other tools of the toolchain usually have the same prefix
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# NAME_WE cannot be used since then this test will fail for names like
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# "arm-unknown-nto-qnx6.3.0-gcc.exe", where BASENAME would be
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# "arm-unknown-nto-qnx6" instead of the correct "arm-unknown-nto-qnx6.3.0-"
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if (NOT _CMAKE_TOOLCHAIN_PREFIX)
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if(CMAKE_Fortran_COMPILER_ID MATCHES "GNU")
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get_filename_component(COMPILER_BASENAME "${CMAKE_Fortran_COMPILER}" NAME)
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if (COMPILER_BASENAME MATCHES "^(.+-)g?fortran(-[0-9]+\\.[0-9]+\\.[0-9]+)?(\\.exe)?$")
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set(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_MATCH_1})
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endif ()
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# if "llvm-" is part of the prefix, remove it, since llvm doesn't have its own binutils
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# but uses the regular ar, objcopy, etc. (instead of llvm-objcopy etc.)
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if ("${_CMAKE_TOOLCHAIN_PREFIX}" MATCHES "(.+-)?llvm-$")
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set(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_MATCH_1})
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endif ()
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endif()
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endif ()
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set(_CMAKE_PROCESSING_LANGUAGE "Fortran")
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include(CMakeFindBinUtils)
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include(Compiler/${CMAKE_Fortran_COMPILER_ID}-FindBinUtils OPTIONAL)
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unset(_CMAKE_PROCESSING_LANGUAGE)
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if(CMAKE_Fortran_XL_CPP)
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set(_SET_CMAKE_Fortran_XL_CPP
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"set(CMAKE_Fortran_XL_CPP \"${CMAKE_Fortran_XL_CPP}\")")
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endif()
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if(CMAKE_Fortran_COMPILER_SYSROOT)
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string(CONCAT _SET_CMAKE_Fortran_COMPILER_SYSROOT
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"set(CMAKE_Fortran_COMPILER_SYSROOT \"${CMAKE_Fortran_COMPILER_SYSROOT}\")\n"
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"set(CMAKE_COMPILER_SYSROOT \"${CMAKE_Fortran_COMPILER_SYSROOT}\")")
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else()
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set(_SET_CMAKE_Fortran_COMPILER_SYSROOT "")
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endif()
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if(CMAKE_Fortran_COMPILER_ARCHITECTURE_ID)
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set(_SET_CMAKE_Fortran_COMPILER_ARCHITECTURE_ID
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"set(CMAKE_Fortran_COMPILER_ARCHITECTURE_ID ${CMAKE_Fortran_COMPILER_ARCHITECTURE_ID})")
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else()
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set(_SET_CMAKE_Fortran_COMPILER_ARCHITECTURE_ID "")
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endif()
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if(MSVC_Fortran_ARCHITECTURE_ID)
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set(SET_MSVC_Fortran_ARCHITECTURE_ID
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"set(MSVC_Fortran_ARCHITECTURE_ID ${MSVC_Fortran_ARCHITECTURE_ID})")
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endif()
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# configure variables set in this file for fast reload later on
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configure_file(${CMAKE_ROOT}/Modules/CMakeFortranCompiler.cmake.in
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${CMAKE_PLATFORM_INFO_DIR}/CMakeFortranCompiler.cmake
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@ONLY
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)
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set(CMAKE_Fortran_COMPILER_ENV_VAR "FC")
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