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include(CMakeDependentOption)
macro(detect_fortran_compiler)
# Enable Fortran here, as enabling locally might be undefined,
# see https://cmake.org/cmake/help/v3.12/command/enable_language.html
# "... it must be called in the highest directory common to all targets using the named language..."
CMAKE_DEPENDENT_OPTION(GT_TESTS_REQUIRE_FORTRAN_COMPILER "CMake will abort if no fortran compiler can be found"
OFF "BUILD_TESTING" OFF)
include(CheckLanguage)
check_language(Fortran)
if(CMAKE_Fortran_COMPILER OR GT_TESTS_REQUIRE_FORTRAN_COMPILER)
enable_language(Fortran)
else()
message(WARNING "Fortran Compiler has not been found. Tests using fortran will not be built!")
endif()
endmacro(detect_fortran_compiler)
macro(detect_c_compiler)
# Enable C here, as enabling locally might be undefined,
# see https://cmake.org/cmake/help/v3.12/command/enable_language.html
# "... it must be called in the highest directory common to all targets using the named language..."
CMAKE_DEPENDENT_OPTION(GT_TESTS_REQUIRE_C_COMPILER "CMake will abort if no C compiler can be found"
OFF "BUILD_TESTING" OFF)
include(CheckLanguage)
check_language(C)
if(CMAKE_C_COMPILER OR GT_TESTS_REQUIRE_C_COMPILER)
enable_language(C)
else()
message(WARNING "C Compiler has not been found. Tests using C will not be built!")
endif()
endmacro(detect_c_compiler)
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