CMake/Modules/CMakeParseLibraryArchitecture.cmake
Robert Maynard 764606e256 CMakeDetermineCompilerABI: Extract lib arch from implicit object file paths
The NVHPC compiler does not have any implicit link directories that can
be used to detect `CMAKE_LIBRARY_ARCHITECTURE`, but it does have
implicit object files.  Extract implicit object file paths from link
lines and check them for the `CMAKE_LIBRARY_ARCHITECTURE` pattern.

Issue: #22024
2021-04-05 17:41:10 -04:00

55 lines
1.7 KiB
CMake

# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
cmake_policy(PUSH)
cmake_policy(SET CMP0053 NEW)
cmake_policy(SET CMP0054 NEW)
# Function parse implicit linker options.
# This is used internally by CMake and should not be included by user
# code.
function(cmake_parse_library_architecture lang implicit_dirs implicit_objs output_var)
unset(library_arch)
# Detect library architecture directory name.
if(CMAKE_LIBRARY_ARCHITECTURE_REGEX)
foreach(dir IN LISTS implicit_dirs)
if("${dir}" MATCHES "/lib/${CMAKE_LIBRARY_ARCHITECTURE_REGEX}$")
get_filename_component(arch "${dir}" NAME)
set(library_arch "${arch}")
break()
endif()
endforeach()
foreach(obj IN LISTS implicit_objs)
get_filename_component(dir "${obj}" DIRECTORY)
if("${dir}" MATCHES "(/usr)+/lib/${CMAKE_LIBRARY_ARCHITECTURE_REGEX}$")
get_filename_component(arch "${dir}" NAME)
set(library_arch "${arch}")
break()
endif()
endforeach()
endif()
if(CMAKE_CXX_COMPILER_ID STREQUAL QCC)
foreach(dir ${implicit_dirs})
if (dir MATCHES "/lib$")
get_filename_component(assumedArchDir "${dir}" DIRECTORY)
get_filename_component(archParentDir "${assumedArchDir}" DIRECTORY)
if (archParentDir STREQUAL CMAKE_SYSROOT)
get_filename_component(archDirName "${assumedArchDir}" NAME)
set(library_arch "${archDirName}")
break()
endif()
endif()
endforeach()
endif()
# Return results.
if(library_arch)
set(${output_var} "${library_arch}" PARENT_SCOPE)
endif()
endfunction()
cmake_policy(POP)