LINKER_LANGUAGE CXX for macOS AppleClang with Make

Author: scivision

CMakeLists.txt

@@ -23,6 +23,8 @@ set(CMAKE_C_STANDARD 99)
 set(CMAKE_CXX_STANDARD 20)
 # we use c++20 features in some examples
 
+option(dev "developer mode")
+
 message(STATUS "${PROJECT_NAME} CMake ${CMAKE_VERSION}")
 
 include(cmake/compilers.cmake)

README.md

@@ -49,7 +49,7 @@ ctest --test-dir build
 
 Note the use of CMake target property
 [LINKER_LANGUAGE](https://cmake.org/cmake/help/latest/prop_tgt/LINKER_LANGUAGE.html)
-necessary for CMake with Intel oneAPI on Linux / macOS.
+necessary for CMake with Intel oneAPI or NVIDIA HPC SDK on Linux.
 
 * C main program with Fortran library: `LINKER_LANGUAGE C`
 * C++ main program with Fortran library: `LINKER_LANGUAGE CXX`

cmake/abi_check/CMakeLists.txt

@@ -10,7 +10,7 @@ add_library(addtwo OBJECT addtwo.cpp)
 target_include_directories(addtwo PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 
 add_executable(main_f main.f90 $<TARGET_OBJECTS:addone> $<TARGET_OBJECTS:addtwo>)
-set_property(TARGET main_f PROPERTY LINKER_LANGUAGE Fortran)
+set_property(TARGET main_f PROPERTY LINKER_LANGUAGE ${linker_lang})
 
 add_test(NAME Fortran_main COMMAND main_f)
 

cmake/compilers.cmake

@@ -2,14 +2,29 @@ include(CheckIncludeFile)
 include(CheckSymbolExists)
 include(CheckIncludeFileCXX)
 
+if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.24 AND CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang" AND CMAKE_GENERATOR STREQUAL "Unix Makefiles")
+  # otherwise failed to link since -lc++ is missing
+  set(linker_lang CXX)
+elseif(NOT CMAKE_GENERATOR MATCHES "Visual Studio")
+  # IntelLLVM|NVHPC need Fortran.
+  # For other compilers (except as above) don't need it set, but Fortran doesn't hurt.
+  set(linker_lang Fortran)
+endif()
+
 # --- abi check: C++ and Fortran compiler ABI compatibility
 
 block()
 
-if(NOT DEFINED abi_compile)
+if(dev AND NOT DEFINED abi_compile AND CMAKE_VERSION VERSION_GREATER_EQUAL 3.25)
 
   message(CHECK_START "checking that C, C++, and Fortran compilers can link")
-  try_compile(abi_compile ${CMAKE_CURRENT_BINARY_DIR}/abi_compile ${CMAKE_CURRENT_LIST_DIR}/abi_check abi_check)
+
+  try_compile(abi_compile
+  PROJECT abi_check
+  SOURCE_DIR ${CMAKE_CURRENT_LIST_DIR}/abi_check
+  CMAKE_FLAGS -Dlinker_lang=${linker_lang}
+  )
+
 
 if(abi_compile)
   message(CHECK_PASS "OK")

test/array/CMakeLists.txt

@@ -9,8 +9,7 @@ add_test(NAME CPP_array COMMAND cxx_f_array)
 add_library(fortran_array OBJECT array.f90)
 
 add_executable(fortran_cpp_array lib.c lib.cpp $<TARGET_OBJECTS:fortran_array>)
-if(NOT CMAKE_GENERATOR MATCHES "Visual Studio")
-  set_property(TARGET fortran_cpp_array PROPERTY LINKER_LANGUAGE Fortran)
-endif()
+set_property(TARGET fortran_cpp_array PROPERTY LINKER_LANGUAGE ${linker_lang})
+
 
 add_test(NAME Fortran_CPP_array COMMAND fortran_cpp_array)

test/bool/CMakeLists.txt

@@ -19,7 +19,7 @@ add_test(NAME Cpp_Fortran_bool COMMAND cxx_fortran_bool)
 
 add_executable(fortran_cxx_bool main.f90)
 target_link_libraries(fortran_cxx_bool PRIVATE bool_cxx)
-set_property(TARGET fortran_cxx_bool PROPERTY LINKER_LANGUAGE Fortran)
+set_property(TARGET fortran_cxx_bool PROPERTY LINKER_LANGUAGE ${linker_lang})
 add_test(NAME Fortran_Cpp_bool COMMAND fortran_cxx_bool)
 
 add_executable(fortran_c_bool main.f90)

test/error/CMakeLists.txt

@@ -20,7 +20,7 @@ COMMAND ${CMAKE_COMMAND} -Dexe=$<TARGET_FILE:cxx_fortran_error> -Dexp_code=42 -P
 add_library(cpp_err OBJECT ${PROJECT_SOURCE_DIR}/src/error/lib.cpp)
 add_executable(fortran_cxx_error error_cpp.f90 $<TARGET_OBJECTS:cpp_err>)
 if(NOT CMAKE_GENERATOR MATCHES "Visual Studio")
-  set_property(TARGET fortran_cxx_error PROPERTY LINKER_LANGUAGE Fortran)
+  set_property(TARGET fortran_cxx_error PROPERTY LINKER_LANGUAGE ${linker_lang})
 endif()
 add_test(NAME Fortran_C++_error
 COMMAND ${CMAKE_COMMAND} -Dexe=$<TARGET_FILE:fortran_cxx_error> -Dexp_code=42 -P ${PROJECT_SOURCE_DIR}/cmake/test_error.cmake

test/exception/CMakeLists.txt

@@ -4,7 +4,7 @@ add_executable(exception_cpp exception.cpp $<TARGET_OBJECTS:raise_exception>)
 add_test(NAME exception_cpp_invalid_arg COMMAND exception_cpp notnumber)
 
 add_executable(exception_fortran exception.f90 $<TARGET_OBJECTS:raise_exception>)
-set_property(TARGET exception_fortran PROPERTY LINKER_LANGUAGE Fortran)
+set_property(TARGET exception_fortran PROPERTY LINKER_LANGUAGE ${linker_lang})
 add_test(NAME exception_fortran_invalid_arg COMMAND ${CMAKE_COMMAND} -E env $<TARGET_FILE:exception_fortran>)
 
 set_property(TEST exception_cpp_invalid_arg exception_fortran_invalid_arg

test/iso_fortran_binding/CMakeLists.txt

@@ -6,7 +6,7 @@ endif()
 
 if(HAVE_C_ALLOC_CHAR)
   add_executable(string_view string_view.f90 string_view.cpp)
-  set_property(TARGET string_view PROPERTY LINKER_LANGUAGE Fortran)
+  set_property(TARGET string_view PROPERTY LINKER_LANGUAGE ${linker_lang})
   add_test(NAME string_view COMMAND string_view)
 endif()
 

test/iterator/CMakeLists.txt

@@ -7,7 +7,7 @@ target_include_directories(int_iterator PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 if(NOT (APPLE AND "$ENV{GITHUB_ACTIONS}"))
 add_executable(int_iterator_fortran main.f90)
 target_link_libraries(int_iterator_fortran PRIVATE int_iterator)
-set_property(TARGET int_iterator_fortran PROPERTY LINKER_LANGUAGE Fortran)
+set_property(TARGET int_iterator_fortran PROPERTY LINKER_LANGUAGE ${linker_lang})
 add_test(NAME IntegerIteratorFortran COMMAND int_iterator_fortran)
 endif()