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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
if(CMAKE_Fortran_COMPILER_FORCED)
# The compiler configuration was forced by the user.
# Assume the user has configured all compiler information.
set(CMAKE_Fortran_COMPILER_WORKS TRUE)
return()
endif()
include(CMakeTestCompilerCommon)
# Remove any cached result from an older CMake version.
# We now store this in CMakeFortranCompiler.cmake.
unset(CMAKE_Fortran_COMPILER_WORKS CACHE)
# Try to identify the ABI and configure it into CMakeFortranCompiler.cmake
include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerABI.cmake)
CMAKE_DETERMINE_COMPILER_ABI(Fortran ${CMAKE_ROOT}/Modules/CMakeFortranCompilerABI.F90)
if(CMAKE_Fortran_ABI_COMPILED)
# The compiler worked so skip dedicated test below.
set(CMAKE_Fortran_COMPILER_WORKS TRUE)
set(CMAKE_Fortran_COMPILER_SUPPORTS_F90 1)
message(STATUS "Check for working Fortran compiler: ${CMAKE_Fortran_COMPILER} - skipped")
else()
cmake_determine_compiler_abi(Fortran ${CMAKE_ROOT}/Modules/CMakeFortranCompilerABI.F)
if(CMAKE_Fortran_ABI_COMPILED)
set(CMAKE_Fortran_COMPILER_WORKS TRUE)
message(STATUS "Check for working Fortran 77 compiler: ${CMAKE_Fortran_COMPILER} - skipped")
endif()
endif()
# This file is used by EnableLanguage in cmGlobalGenerator to
# determine that the selected Fortran compiler can actually compile
# and link the most basic of programs. If not, a fatal error
# is set and cmake stops processing commands and will not generate
# any makefiles or projects.
if(NOT CMAKE_Fortran_COMPILER_WORKS)
PrintTestCompilerStatus("Fortran")
set(__TestCompiler_testFortranCompilerSource "
PROGRAM TESTFortran
PRINT *, 'Hello'
END
")
# Clear result from normal variable.
unset(CMAKE_Fortran_COMPILER_WORKS)
# Puts test result in cache variable.
try_compile(CMAKE_Fortran_COMPILER_WORKS
SOURCE_FROM_VAR testFortranCompiler.f __TestCompiler_testFortranCompilerSource
OUTPUT_VARIABLE OUTPUT)
unset(__TestCompiler_testFortranCompilerSource)
# Move result from cache to normal variable.
set(CMAKE_Fortran_COMPILER_WORKS ${CMAKE_Fortran_COMPILER_WORKS})
unset(CMAKE_Fortran_COMPILER_WORKS CACHE)
if(NOT CMAKE_Fortran_COMPILER_WORKS)
PrintTestCompilerResult(CHECK_FAIL "broken")
string(REPLACE "\n" "\n " _output "${OUTPUT}")
message(FATAL_ERROR "The Fortran compiler\n \"${CMAKE_Fortran_COMPILER}\"\n"
"is not able to compile a simple test program.\nIt fails "
"with the following output:\n ${_output}\n\n"
"CMake will not be able to correctly generate this project.")
endif()
PrintTestCompilerResult(CHECK_PASS "works")
endif()
# Test for Fortran 90 support by using an f90-specific construct.
if(NOT DEFINED CMAKE_Fortran_COMPILER_SUPPORTS_F90)
message(CHECK_START "Checking whether ${CMAKE_Fortran_COMPILER} supports Fortran 90")
set(__TestCompiler_testFortranCompilerSource "
PROGRAM TESTFortran90
integer stop ; stop = 1 ; do while ( stop .eq. 0 ) ; end do
END PROGRAM TESTFortran90
")
try_compile(CMAKE_Fortran_COMPILER_SUPPORTS_F90
SOURCE_FROM_VAR testFortranCompilerF90.f90 __TestCompiler_testFortranCompilerF90Source
OUTPUT_VARIABLE OUTPUT)
unset(__TestCompiler_testFortranCompilerF90Source)
if(CMAKE_Fortran_COMPILER_SUPPORTS_F90)
message(CHECK_PASS "yes")
set(CMAKE_Fortran_COMPILER_SUPPORTS_F90 1)
else()
message(CHECK_FAIL "no")
set(CMAKE_Fortran_COMPILER_SUPPORTS_F90 0)
endif()
unset(CMAKE_Fortran_COMPILER_SUPPORTS_F90 CACHE)
endif()
# Re-configure to save learned information.
configure_file(
${CMAKE_ROOT}/Modules/CMakeFortranCompiler.cmake.in
${CMAKE_PLATFORM_INFO_DIR}/CMakeFortranCompiler.cmake
@ONLY
)
include(${CMAKE_PLATFORM_INFO_DIR}/CMakeFortranCompiler.cmake)
if(CMAKE_Fortran_SIZEOF_DATA_PTR)
foreach(f ${CMAKE_Fortran_ABI_FILES})
include(${f})
endforeach()
unset(CMAKE_Fortran_ABI_FILES)
endif()
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