mirror of
https://github.com/ZDoom/zdoom-macos-deps.git
synced 2024-11-25 13:21:05 +00:00
401 lines
14 KiB
CMake
401 lines
14 KiB
CMake
|
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
||
|
|
# file Copyright.txt or https://cmake.org/licensing for details.
|
||
|
|
|
||
|
|
#[=======================================================================[.rst:
|
||
|
|
FortranCInterface
|
||
|
|
-----------------
|
||
|
|
|
||
|
|
Fortran/C Interface Detection
|
||
|
|
|
||
|
|
This module automatically detects the API by which C and Fortran
|
||
|
|
languages interact.
|
||
|
|
|
||
|
|
Module Variables
|
||
|
|
^^^^^^^^^^^^^^^^
|
||
|
|
|
||
|
|
Variables that indicate if the mangling is found:
|
||
|
|
|
||
|
|
``FortranCInterface_GLOBAL_FOUND``
|
||
|
|
Global subroutines and functions.
|
||
|
|
|
||
|
|
``FortranCInterface_MODULE_FOUND``
|
||
|
|
Module subroutines and functions (declared by "MODULE PROCEDURE").
|
||
|
|
|
||
|
|
This module also provides the following variables to specify
|
||
|
|
the detected mangling, though a typical use case does not need
|
||
|
|
to reference them and can use the `Module Functions`_ below.
|
||
|
|
|
||
|
|
``FortranCInterface_GLOBAL_PREFIX``
|
||
|
|
Prefix for a global symbol without an underscore.
|
||
|
|
|
||
|
|
``FortranCInterface_GLOBAL_SUFFIX``
|
||
|
|
Suffix for a global symbol without an underscore.
|
||
|
|
|
||
|
|
``FortranCInterface_GLOBAL_CASE``
|
||
|
|
The case for a global symbol without an underscore,
|
||
|
|
either ``UPPER`` or ``LOWER``.
|
||
|
|
|
||
|
|
``FortranCInterface_GLOBAL__PREFIX``
|
||
|
|
Prefix for a global symbol with an underscore.
|
||
|
|
|
||
|
|
``FortranCInterface_GLOBAL__SUFFIX``
|
||
|
|
Suffix for a global symbol with an underscore.
|
||
|
|
|
||
|
|
``FortranCInterface_GLOBAL__CASE``
|
||
|
|
The case for a global symbol with an underscore,
|
||
|
|
either ``UPPER`` or ``LOWER``.
|
||
|
|
|
||
|
|
``FortranCInterface_MODULE_PREFIX``
|
||
|
|
Prefix for a module symbol without an underscore.
|
||
|
|
|
||
|
|
``FortranCInterface_MODULE_MIDDLE``
|
||
|
|
Middle of a module symbol without an underscore that appears
|
||
|
|
between the name of the module and the name of the symbol.
|
||
|
|
|
||
|
|
``FortranCInterface_MODULE_SUFFIX``
|
||
|
|
Suffix for a module symbol without an underscore.
|
||
|
|
|
||
|
|
``FortranCInterface_MODULE_CASE``
|
||
|
|
The case for a module symbol without an underscore,
|
||
|
|
either ``UPPER`` or ``LOWER``.
|
||
|
|
|
||
|
|
``FortranCInterface_MODULE__PREFIX``
|
||
|
|
Prefix for a module symbol with an underscore.
|
||
|
|
|
||
|
|
``FortranCInterface_MODULE__MIDDLE``
|
||
|
|
Middle of a module symbol with an underscore that appears
|
||
|
|
between the name of the module and the name of the symbol.
|
||
|
|
|
||
|
|
``FortranCInterface_MODULE__SUFFIX``
|
||
|
|
Suffix for a module symbol with an underscore.
|
||
|
|
|
||
|
|
``FortranCInterface_MODULE__CASE``
|
||
|
|
The case for a module symbol with an underscore,
|
||
|
|
either ``UPPER`` or ``LOWER``.
|
||
|
|
|
||
|
|
Module Functions
|
||
|
|
^^^^^^^^^^^^^^^^
|
||
|
|
|
||
|
|
.. command:: FortranCInterface_HEADER
|
||
|
|
|
||
|
|
The ``FortranCInterface_HEADER`` function is provided to generate a
|
||
|
|
C header file containing macros to mangle symbol names::
|
||
|
|
|
||
|
|
FortranCInterface_HEADER(<file>
|
||
|
|
[MACRO_NAMESPACE <macro-ns>]
|
||
|
|
[SYMBOL_NAMESPACE <ns>]
|
||
|
|
[SYMBOLS [<module>:]<function> ...])
|
||
|
|
|
||
|
|
It generates in ``<file>`` definitions of the following macros::
|
||
|
|
|
||
|
|
#define FortranCInterface_GLOBAL (name,NAME) ...
|
||
|
|
#define FortranCInterface_GLOBAL_(name,NAME) ...
|
||
|
|
#define FortranCInterface_MODULE (mod,name, MOD,NAME) ...
|
||
|
|
#define FortranCInterface_MODULE_(mod,name, MOD,NAME) ...
|
||
|
|
|
||
|
|
These macros mangle four categories of Fortran symbols, respectively:
|
||
|
|
|
||
|
|
* Global symbols without '_': ``call mysub()``
|
||
|
|
* Global symbols with '_' : ``call my_sub()``
|
||
|
|
* Module symbols without '_': ``use mymod; call mysub()``
|
||
|
|
* Module symbols with '_' : ``use mymod; call my_sub()``
|
||
|
|
|
||
|
|
If mangling for a category is not known, its macro is left undefined.
|
||
|
|
All macros require raw names in both lower case and upper case.
|
||
|
|
|
||
|
|
The options are:
|
||
|
|
|
||
|
|
``MACRO_NAMESPACE``
|
||
|
|
Replace the default ``FortranCInterface_`` prefix with a given
|
||
|
|
namespace ``<macro-ns>``.
|
||
|
|
|
||
|
|
``SYMBOLS``
|
||
|
|
List symbols to mangle automatically with C preprocessor definitions::
|
||
|
|
|
||
|
|
<function> ==> #define <ns><function> ...
|
||
|
|
<module>:<function> ==> #define <ns><module>_<function> ...
|
||
|
|
|
||
|
|
If the mangling for some symbol is not known then no preprocessor
|
||
|
|
definition is created, and a warning is displayed.
|
||
|
|
|
||
|
|
``SYMBOL_NAMESPACE``
|
||
|
|
Prefix all preprocessor definitions generated by the ``SYMBOLS``
|
||
|
|
option with a given namespace ``<ns>``.
|
||
|
|
|
||
|
|
.. command:: FortranCInterface_VERIFY
|
||
|
|
|
||
|
|
The ``FortranCInterface_VERIFY`` function is provided to verify
|
||
|
|
that the Fortran and C/C++ compilers work together::
|
||
|
|
|
||
|
|
FortranCInterface_VERIFY([CXX] [QUIET])
|
||
|
|
|
||
|
|
It tests whether a simple test executable using Fortran and C (and C++
|
||
|
|
when the CXX option is given) compiles and links successfully. The
|
||
|
|
result is stored in the cache entry ``FortranCInterface_VERIFIED_C``
|
||
|
|
(or ``FortranCInterface_VERIFIED_CXX`` if ``CXX`` is given) as a boolean.
|
||
|
|
If the check fails and ``QUIET`` is not given the function terminates with a
|
||
|
|
fatal error message describing the problem. The purpose of this check
|
||
|
|
is to stop a build early for incompatible compiler combinations. The
|
||
|
|
test is built in the ``Release`` configuration.
|
||
|
|
|
||
|
|
Example Usage
|
||
|
|
^^^^^^^^^^^^^
|
||
|
|
|
||
|
|
.. code-block:: cmake
|
||
|
|
|
||
|
|
include(FortranCInterface)
|
||
|
|
FortranCInterface_HEADER(FC.h MACRO_NAMESPACE "FC_")
|
||
|
|
|
||
|
|
This creates a "FC.h" header that defines mangling macros ``FC_GLOBAL()``,
|
||
|
|
``FC_GLOBAL_()``, ``FC_MODULE()``, and ``FC_MODULE_()``.
|
||
|
|
|
||
|
|
.. code-block:: cmake
|
||
|
|
|
||
|
|
include(FortranCInterface)
|
||
|
|
FortranCInterface_HEADER(FCMangle.h
|
||
|
|
MACRO_NAMESPACE "FC_"
|
||
|
|
SYMBOL_NAMESPACE "FC_"
|
||
|
|
SYMBOLS mysub mymod:my_sub)
|
||
|
|
|
||
|
|
This creates a "FCMangle.h" header that defines the same ``FC_*()``
|
||
|
|
mangling macros as the previous example plus preprocessor symbols
|
||
|
|
``FC_mysub`` and ``FC_mymod_my_sub``.
|
||
|
|
|
||
|
|
Additional Manglings
|
||
|
|
^^^^^^^^^^^^^^^^^^^^
|
||
|
|
|
||
|
|
FortranCInterface is aware of possible ``GLOBAL`` and ``MODULE`` manglings
|
||
|
|
for many Fortran compilers, but it also provides an interface to specify
|
||
|
|
new possible manglings. Set the variables::
|
||
|
|
|
||
|
|
FortranCInterface_GLOBAL_SYMBOLS
|
||
|
|
FortranCInterface_MODULE_SYMBOLS
|
||
|
|
|
||
|
|
before including FortranCInterface to specify manglings of the symbols
|
||
|
|
``MySub``, ``My_Sub``, ``MyModule:MySub``, and ``My_Module:My_Sub``.
|
||
|
|
For example, the code:
|
||
|
|
|
||
|
|
.. code-block:: cmake
|
||
|
|
|
||
|
|
set(FortranCInterface_GLOBAL_SYMBOLS mysub_ my_sub__ MYSUB_)
|
||
|
|
# ^^^^^ ^^^^^^ ^^^^^
|
||
|
|
set(FortranCInterface_MODULE_SYMBOLS
|
||
|
|
__mymodule_MOD_mysub __my_module_MOD_my_sub)
|
||
|
|
# ^^^^^^^^ ^^^^^ ^^^^^^^^^ ^^^^^^
|
||
|
|
include(FortranCInterface)
|
||
|
|
|
||
|
|
tells FortranCInterface to try given ``GLOBAL`` and ``MODULE`` manglings.
|
||
|
|
(The carets point at raw symbol names for clarity in this example but
|
||
|
|
are not needed.)
|
||
|
|
#]=======================================================================]
|
||
|
|
|
||
|
|
#-----------------------------------------------------------------------------
|
||
|
|
# Execute at most once in a project.
|
||
|
|
if(FortranCInterface_SOURCE_DIR)
|
||
|
|
return()
|
||
|
|
endif()
|
||
|
|
|
||
|
|
cmake_policy(PUSH)
|
||
|
|
cmake_policy(SET CMP0007 NEW)
|
||
|
|
|
||
|
|
#-----------------------------------------------------------------------------
|
||
|
|
# Verify that C and Fortran are available.
|
||
|
|
foreach(lang C Fortran)
|
||
|
|
if(NOT CMAKE_${lang}_COMPILER_LOADED)
|
||
|
|
message(FATAL_ERROR
|
||
|
|
"FortranCInterface requires the ${lang} language to be enabled.")
|
||
|
|
endif()
|
||
|
|
endforeach()
|
||
|
|
|
||
|
|
#-----------------------------------------------------------------------------
|
||
|
|
set(FortranCInterface_SOURCE_DIR ${CMAKE_ROOT}/Modules/FortranCInterface)
|
||
|
|
|
||
|
|
# MinGW's make tool does not always like () in the path
|
||
|
|
if("${CMAKE_GENERATOR}" MATCHES "MinGW" AND
|
||
|
|
"${FortranCInterface_SOURCE_DIR}" MATCHES "[()]")
|
||
|
|
file(COPY ${FortranCInterface_SOURCE_DIR}/
|
||
|
|
DESTINATION ${CMAKE_BINARY_DIR}/CMakeFiles/FortranCInterfaceMinGW)
|
||
|
|
set(FortranCInterface_SOURCE_DIR ${CMAKE_BINARY_DIR}/CMakeFiles/FortranCInterfaceMinGW)
|
||
|
|
endif()
|
||
|
|
|
||
|
|
# Create the interface detection project if it does not exist.
|
||
|
|
if(NOT FortranCInterface_BINARY_DIR)
|
||
|
|
set(FortranCInterface_BINARY_DIR ${CMAKE_BINARY_DIR}/CMakeFiles/FortranCInterface)
|
||
|
|
include(${FortranCInterface_SOURCE_DIR}/Detect.cmake)
|
||
|
|
endif()
|
||
|
|
|
||
|
|
# Load the detection results.
|
||
|
|
include(${FortranCInterface_BINARY_DIR}/Output.cmake)
|
||
|
|
|
||
|
|
#-----------------------------------------------------------------------------
|
||
|
|
function(FortranCInterface_HEADER file)
|
||
|
|
# Parse arguments.
|
||
|
|
if(IS_ABSOLUTE "${file}")
|
||
|
|
set(FILE "${file}")
|
||
|
|
else()
|
||
|
|
set(FILE "${CMAKE_CURRENT_BINARY_DIR}/${file}")
|
||
|
|
endif()
|
||
|
|
set(MACRO_NAMESPACE "FortranCInterface_")
|
||
|
|
set(SYMBOL_NAMESPACE)
|
||
|
|
set(SYMBOLS)
|
||
|
|
set(doing)
|
||
|
|
foreach(arg ${ARGN})
|
||
|
|
if("x${arg}" MATCHES "^x(SYMBOLS|SYMBOL_NAMESPACE|MACRO_NAMESPACE)$")
|
||
|
|
set(doing "${arg}")
|
||
|
|
elseif("x${doing}" MATCHES "^x(SYMBOLS)$")
|
||
|
|
list(APPEND "${doing}" "${arg}")
|
||
|
|
elseif("x${doing}" MATCHES "^x(SYMBOL_NAMESPACE|MACRO_NAMESPACE)$")
|
||
|
|
set("${doing}" "${arg}")
|
||
|
|
set(doing)
|
||
|
|
else()
|
||
|
|
message(AUTHOR_WARNING "Unknown argument: \"${arg}\"")
|
||
|
|
endif()
|
||
|
|
endforeach()
|
||
|
|
|
||
|
|
# Generate macro definitions.
|
||
|
|
set(HEADER_CONTENT)
|
||
|
|
set(_desc_GLOBAL "/* Mangling for Fortran global symbols without underscores. */")
|
||
|
|
set(_desc_GLOBAL_ "/* Mangling for Fortran global symbols with underscores. */")
|
||
|
|
set(_desc_MODULE "/* Mangling for Fortran module symbols without underscores. */")
|
||
|
|
set(_desc_MODULE_ "/* Mangling for Fortran module symbols with underscores. */")
|
||
|
|
foreach(macro GLOBAL GLOBAL_ MODULE MODULE_)
|
||
|
|
if(FortranCInterface_${macro}_MACRO)
|
||
|
|
string(APPEND HEADER_CONTENT "
|
||
|
|
${_desc_${macro}}
|
||
|
|
#define ${MACRO_NAMESPACE}${macro}${FortranCInterface_${macro}_MACRO}
|
||
|
|
")
|
||
|
|
endif()
|
||
|
|
endforeach()
|
||
|
|
|
||
|
|
# Generate symbol mangling definitions.
|
||
|
|
if(SYMBOLS)
|
||
|
|
string(APPEND HEADER_CONTENT "
|
||
|
|
/*--------------------------------------------------------------------------*/
|
||
|
|
/* Mangle some symbols automatically. */
|
||
|
|
")
|
||
|
|
endif()
|
||
|
|
foreach(f ${SYMBOLS})
|
||
|
|
if("${f}" MATCHES ":")
|
||
|
|
# Module symbol name. Parse "<module>:<function>" syntax.
|
||
|
|
string(REPLACE ":" ";" pieces "${f}")
|
||
|
|
list(GET pieces 0 module)
|
||
|
|
list(GET pieces 1 function)
|
||
|
|
string(TOUPPER "${module}" m_upper)
|
||
|
|
string(TOLOWER "${module}" m_lower)
|
||
|
|
string(TOUPPER "${function}" f_upper)
|
||
|
|
string(TOLOWER "${function}" f_lower)
|
||
|
|
if("${function}" MATCHES "_")
|
||
|
|
set(form "_")
|
||
|
|
else()
|
||
|
|
set(form "")
|
||
|
|
endif()
|
||
|
|
if(FortranCInterface_MODULE${form}_MACRO)
|
||
|
|
string(APPEND HEADER_CONTENT "#define ${SYMBOL_NAMESPACE}${module}_${function} ${MACRO_NAMESPACE}MODULE${form}(${m_lower},${f_lower}, ${m_upper},${f_upper})\n")
|
||
|
|
else()
|
||
|
|
message(AUTHOR_WARNING "No FortranCInterface mangling known for ${f}")
|
||
|
|
endif()
|
||
|
|
else()
|
||
|
|
# Global symbol name.
|
||
|
|
if("${f}" MATCHES "_")
|
||
|
|
set(form "_")
|
||
|
|
else()
|
||
|
|
set(form "")
|
||
|
|
endif()
|
||
|
|
string(TOUPPER "${f}" f_upper)
|
||
|
|
string(TOLOWER "${f}" f_lower)
|
||
|
|
if(FortranCInterface_GLOBAL${form}_MACRO)
|
||
|
|
string(APPEND HEADER_CONTENT "#define ${SYMBOL_NAMESPACE}${f} ${MACRO_NAMESPACE}GLOBAL${form}(${f_lower}, ${f_upper})\n")
|
||
|
|
else()
|
||
|
|
message(AUTHOR_WARNING "No FortranCInterface mangling known for ${f}")
|
||
|
|
endif()
|
||
|
|
endif()
|
||
|
|
endforeach()
|
||
|
|
|
||
|
|
# Store the content.
|
||
|
|
configure_file(${FortranCInterface_SOURCE_DIR}/Macro.h.in ${FILE} @ONLY)
|
||
|
|
endfunction()
|
||
|
|
|
||
|
|
function(FortranCInterface_VERIFY)
|
||
|
|
# Check arguments.
|
||
|
|
|
||
|
|
set(lang C)
|
||
|
|
set(quiet 0)
|
||
|
|
set(verify_cxx 0)
|
||
|
|
foreach(arg ${ARGN})
|
||
|
|
if("${arg}" STREQUAL "QUIET")
|
||
|
|
set(quiet 1)
|
||
|
|
elseif("${arg}" STREQUAL "CXX")
|
||
|
|
set(lang CXX)
|
||
|
|
set(verify_cxx 1)
|
||
|
|
else()
|
||
|
|
message(FATAL_ERROR
|
||
|
|
"FortranCInterface_VERIFY - called with unknown argument:\n ${arg}")
|
||
|
|
endif()
|
||
|
|
endforeach()
|
||
|
|
|
||
|
|
if(NOT CMAKE_${lang}_COMPILER_LOADED)
|
||
|
|
message(FATAL_ERROR
|
||
|
|
"FortranCInterface_VERIFY(${lang}) requires ${lang} to be enabled.")
|
||
|
|
endif()
|
||
|
|
|
||
|
|
# Build the verification project if not yet built.
|
||
|
|
if(NOT DEFINED FortranCInterface_VERIFIED_${lang})
|
||
|
|
set(_desc "Verifying Fortran/${lang} Compiler Compatibility")
|
||
|
|
message(CHECK_START "${_desc}")
|
||
|
|
|
||
|
|
cmake_policy(GET CMP0056 _FortranCInterface_CMP0056)
|
||
|
|
if(_FortranCInterface_CMP0056 STREQUAL "NEW")
|
||
|
|
set(_FortranCInterface_EXE_LINKER_FLAGS "-DCMAKE_EXE_LINKER_FLAGS:STRING=${CMAKE_EXE_LINKER_FLAGS}")
|
||
|
|
else()
|
||
|
|
set(_FortranCInterface_EXE_LINKER_FLAGS "")
|
||
|
|
endif()
|
||
|
|
|
||
|
|
# Build a sample project which reports symbols.
|
||
|
|
set(CMAKE_TRY_COMPILE_CONFIGURATION Release)
|
||
|
|
try_compile(FortranCInterface_VERIFY_${lang}_COMPILED
|
||
|
|
${FortranCInterface_BINARY_DIR}/Verify${lang}
|
||
|
|
${FortranCInterface_SOURCE_DIR}/Verify
|
||
|
|
VerifyFortranC # project name
|
||
|
|
VerifyFortranC # target name
|
||
|
|
CMAKE_FLAGS -DVERIFY_CXX=${verify_cxx}
|
||
|
|
-DCMAKE_VERBOSE_MAKEFILE=ON
|
||
|
|
"-DCMAKE_C_FLAGS:STRING=${CMAKE_C_FLAGS}"
|
||
|
|
"-DCMAKE_CXX_FLAGS:STRING=${CMAKE_CXX_FLAGS}"
|
||
|
|
"-DCMAKE_Fortran_FLAGS:STRING=${CMAKE_Fortran_FLAGS}"
|
||
|
|
"-DCMAKE_C_FLAGS_RELEASE:STRING=${CMAKE_C_FLAGS_RELEASE}"
|
||
|
|
"-DCMAKE_CXX_FLAGS_RELEASE:STRING=${CMAKE_CXX_FLAGS_RELEASE}"
|
||
|
|
"-DCMAKE_Fortran_FLAGS_RELEASE:STRING=${CMAKE_Fortran_FLAGS_RELEASE}"
|
||
|
|
${_FortranCInterface_EXE_LINKER_FLAGS}
|
||
|
|
OUTPUT_VARIABLE _output)
|
||
|
|
file(WRITE "${FortranCInterface_BINARY_DIR}/Verify${lang}/output.txt" "${_output}")
|
||
|
|
|
||
|
|
# Report results.
|
||
|
|
if(FortranCInterface_VERIFY_${lang}_COMPILED)
|
||
|
|
message(CHECK_PASS "Success")
|
||
|
|
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
|
||
|
|
"${_desc} passed with the following output:\n${_output}\n\n")
|
||
|
|
set(FortranCInterface_VERIFIED_${lang} 1 CACHE INTERNAL "Fortran/${lang} compatibility")
|
||
|
|
else()
|
||
|
|
message(CHECK_FAIL "Failed")
|
||
|
|
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
|
||
|
|
"${_desc} failed with the following output:\n${_output}\n\n")
|
||
|
|
set(FortranCInterface_VERIFIED_${lang} 0 CACHE INTERNAL "Fortran/${lang} compatibility")
|
||
|
|
endif()
|
||
|
|
unset(FortranCInterface_VERIFY_${lang}_COMPILED CACHE)
|
||
|
|
endif()
|
||
|
|
|
||
|
|
# Error if compilers are incompatible.
|
||
|
|
if(NOT FortranCInterface_VERIFIED_${lang} AND NOT quiet)
|
||
|
|
file(READ "${FortranCInterface_BINARY_DIR}/Verify${lang}/output.txt" _output)
|
||
|
|
string(REPLACE "\n" "\n " _output "${_output}")
|
||
|
|
message(FATAL_ERROR
|
||
|
|
"The Fortran compiler:\n ${CMAKE_Fortran_COMPILER}\n"
|
||
|
|
"and the ${lang} compiler:\n ${CMAKE_${lang}_COMPILER}\n"
|
||
|
|
"failed to compile a simple test project using both languages. "
|
||
|
|
"The output was:\n ${_output}")
|
||
|
|
endif()
|
||
|
|
endfunction()
|
||
|
|
|
||
|
|
# Restore including context policies.
|
||
|
|
cmake_policy(POP)
|