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https://github.com/libsdl-org/SDL.git
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Merge 96ec8ae9f7 into 1bf6279fc7
This commit is contained in:
Anonymous Maarten
GitHub
commit
78c4eeafa6
2 changed files with 120 additions and 94 deletions
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@ -101,13 +101,13 @@ function(SDL_detect_linker)
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endfunction()
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function(read_absolute_symlink DEST PATH)
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file(READ_SYMLINK "${PATH}" p)
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if(NOT IS_ABSOLUTE "${p}")
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file(READ_SYMLINK "${PATH}" target)
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if(NOT IS_ABSOLUTE "${target}")
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get_filename_component(pdir "${PATH}" DIRECTORY)
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set(p "${pdir}/${p}")
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set(target "${pdir}/${target}")
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endif()
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get_filename_component(p "${p}" ABSOLUTE)
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set("${DEST}" "${p}" PARENT_SCOPE)
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get_filename_component(target "${target}" ABSOLUTE)
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set("${DEST}" "${target}" PARENT_SCOPE)
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endfunction()
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function(win32_implib_identify_dll DEST IMPLIB)
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@ -181,8 +181,89 @@ function(get_actual_target)
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set("${dst}" "${target}" PARENT_SCOPE)
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endfunction()
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function(elf_read_soname SONAME LIBRARY)
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# Parse SONAME from library using `readelf`
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set(result "${SONAME}-NOTFOUND")
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if(EXISTS "${LIBRARY}")
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find_program(READELF_BIN NAMES readelf)
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if(READELF_BIN)
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execute_process(COMMAND "${READELF_BIN}" -d "${LIBRARY}" RESULTS_VARIABLE readelf_result OUTPUT_VARIABLE readelf_output)
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if(readelf_result EQUAL 0 AND readelf_output)
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string(REGEX MATCH "\\(SONAME\\).*\\[([0-9A-Za-z_.-]+)\\]" soname "${readelf_output}")
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if(soname)
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set(result "${CMAKE_MATCH_1}")
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endif()
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endif()
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endif()
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endif()
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message(DEBUG "elf_read_soname(\"${LIBRARY}\") -> ${SONAME}")
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set("${SONAME}" "${result}" PARENT_SCOPE)
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endfunction()
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function(library_soname_from_symlink SONAME LIBRARY)
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# 1. Find the target library a file might be symbolic linking to
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# 2. find all other files in the same folder that symbolic link to it
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# 3. sort all these files, and select the 1st item on Linux, and last on macOS
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set(result "${SONAME}-NOTFOUND")
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if(EXISTS "${LIBRARY}")
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get_filename_component(abs_library "${LIBRARY}" ABSOLUTE)
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while(IS_SYMLINK "${abs_library}")
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read_absolute_symlink(abs_library "${abs_library}")
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endwhile()
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if(APPLE)
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set(valid_shared_library_regex "\\.[0-9]+\\.dylib$")
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else()
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set(valid_shared_library_regex "\\.so\\.([0-9.]+)?[0-9]$")
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endif()
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get_filename_component(libdir "${abs_library}" DIRECTORY)
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file(GLOB subfiles "${libdir}/*")
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set(similar_files "${abs_library}")
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foreach(subfile ${subfiles})
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if(IS_SYMLINK "${subfile}")
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read_absolute_symlink(subfile_target "${subfile}")
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while(IS_SYMLINK "${subfile_target}")
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read_absolute_symlink(subfile_target "${subfile_target}")
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endwhile()
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get_filename_component(subfile_target "${subfile_target}" ABSOLUTE)
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if(subfile_target STREQUAL abs_library AND subfile MATCHES "${valid_shared_library_regex}")
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list(APPEND similar_files "${subfile}")
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endif()
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endif()
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endforeach()
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list(SORT similar_files)
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if(APPLE)
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list(REVERSE similar_files)
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endif()
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message(DEBUG "files that are similar to \"${abs_library}\": ${similar_files}")
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list(GET similar_files 0 item)
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get_filename_component(result "${item}" NAME)
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endif()
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message(DEBUG "library_soname_from_symlink(${LIBRARY}) -> ${result}")
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set(${SONAME} "${result}" PARENT_SCOPE)
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endfunction()
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function(library_soname_from_path DEST LIBRARY)
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set(result "${DEST}-NOTFOUND")
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if(WIN32)
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win32_implib_identify_dll(result "${LIBRARY}")
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else()
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# 1. On elf platforms, if readelf is available, parse the output of `readelf -d` and return the "(SONAME)" line
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# 2. Else:
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# 1. Find the target library a file might be symbolic linking to
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# 2. find all other files in the same folder that symbolic link to it
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# 3. sort all these files, and select the 1st item on Linux, and last on macOS
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if(UNIX AND NOT APPLE)
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elf_read_soname(result "${LIBRARY}")
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endif()
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if(NOT result)
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library_soname_from_symlink(result "${LIBRARY}")
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endif()
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endif()
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set("${DEST}" "${result}" PARENT_SCOPE)
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endfunction()
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function(target_get_dynamic_library DEST TARGET)
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set(result)
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set(result "${DEST}-NOTFOUND")
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get_actual_target(TARGET)
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if(WIN32)
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# Use the target dll of the import library
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@ -200,17 +281,13 @@ function(target_get_dynamic_library DEST TARGET)
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endforeach()
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foreach(prop_to_check ${props_to_check})
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if(NOT result)
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get_target_property(propvalue "${TARGET}" ${prop_to_check})
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if(propvalue AND EXISTS "${propvalue}")
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win32_implib_identify_dll(result "${propvalue}" NOTFATAL)
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endif()
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if(result)
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break()
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endif()
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endforeach()
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else()
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if(UNIX AND NOT APPLE)
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find_program(READELF_BIN NAMES readelf)
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endif()
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# 1. find the target library a file might be symbolic linking to
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# 2. if readelf is available, parse the output of `readelf -d` and output the "(SONAME)" line
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# 3. Else:
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@ -223,57 +300,29 @@ function(target_get_dynamic_library DEST TARGET)
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foreach (config_type ${CMAKE_CONFIGURATION_TYPES} RELEASE DEBUG RELWITHDEBINFO MINSIZEREL)
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list(APPEND location_properties IMPORTED_LOCATION_${config_type})
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endforeach()
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if(APPLE)
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set(valid_shared_library_regex "\\.[0-9]+\\.dylib$")
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else()
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set(valid_shared_library_regex "\\.so\\.([0-9.]+)?[0-9]")
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endif()
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if(UNIX AND NOT APPLE)
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foreach(location_property ${location_properties})
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if(NOT result)
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get_target_property(library_path "${TARGET}" ${location_property})
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message(DEBUG "get_target_property(${TARGET} ${location_property}) -> ${library_path}")
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if(EXISTS "${library_path}")
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if(READELF_BIN)
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execute_process(COMMAND "${READELF_BIN}" -d "${library_path}" RESULTS_VARIABLE readelf_result OUTPUT_VARIABLE readelf_output)
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if(readelf_output)
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string(REGEX MATCH "\\(SONAME\\).*\\[([0-9A-Za-z_.-]+)\\]" soname "${readelf_output}")
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if(soname)
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set(result "${CMAKE_MATCH_1}")
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if(library_path AND EXISTS "${library_path}")
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elf_read_soname(result "${library_path}")
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if(result)
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break()
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endif()
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endif()
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endforeach()
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endif()
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if(NOT result)
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get_filename_component(library_path "${library_path}" ABSOLUTE)
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while (IS_SYMLINK "${library_path}")
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read_absolute_symlink(library_path "${library_path}")
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endwhile()
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message(DEBUG "${TARGET} -> ${library_path}")
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get_filename_component(libdir "${library_path}" DIRECTORY)
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file(GLOB subfiles "${libdir}/*")
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set(similar_files "${library_path}")
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foreach(subfile ${subfiles})
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if(IS_SYMLINK "${subfile}")
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read_absolute_symlink(subfile_target "${subfile}")
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while(IS_SYMLINK "${subfile_target}")
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read_absolute_symlink(subfile_target "${subfile_target}")
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endwhile()
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get_filename_component(subfile_target "${subfile_target}" ABSOLUTE)
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if(subfile_target STREQUAL library_path AND subfile MATCHES "${valid_shared_library_regex}")
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list(APPEND similar_files "${subfile}")
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foreach(location_property ${location_properties})
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get_target_property(library_path "${TARGET}" ${location_property})
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if(library_path AND EXISTS "${library_path}")
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library_soname_from_symlink(result "${library_path}")
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message(DEBUG "result=${result}")
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if(result)
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break()
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endif()
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endif()
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endforeach()
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list(SORT similar_files)
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message(DEBUG "files that are similar to \"${library_path}\"=${similar_files}")
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if(APPLE)
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list(REVERSE similar_files)
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endif()
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list(GET similar_files 0 item)
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get_filename_component(result "${item}" NAME)
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endif()
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endif()
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endif()
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endforeach()
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endif()
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if(result)
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string(TOLOWER "${result}" result_lower)
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@ -5,7 +5,7 @@ macro(check_c_source_compiles_static SOURCE VAR)
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set(CMAKE_TRY_COMPILE_TARGET_TYPE "${saved_CMAKE_TRY_COMPILE_TARGET_TYPE}")
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endmacro()
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macro(FindLibraryAndSONAME _LIB)
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function(FindLibraryAndSONAME _LIB)
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cmake_parse_arguments(_FLAS "" "" "LIBDIRS" ${ARGN})
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string(TOUPPER ${_LIB} _UPPERLNAME)
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@ -15,39 +15,18 @@ macro(FindLibraryAndSONAME _LIB)
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# FIXME: fail FindLibraryAndSONAME when library is not shared.
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if(${_LNAME}_LIB MATCHES ".*\\${CMAKE_SHARED_LIBRARY_SUFFIX}.*" AND NOT ${_LNAME}_LIB MATCHES ".*\\${CMAKE_STATIC_LIBRARY_SUFFIX}.*")
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set(${_LNAME}_SHARED TRUE)
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set(${_LNAME}_SHARED TRUE PARENT_SCOPE)
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library_soname_from_path(soname "${${_LNAME}_LIB}")
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else()
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set(${_LNAME}_SHARED FALSE)
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endif()
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if(${_LNAME}_LIB)
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# reduce the library name for shared linking
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get_filename_component(_LIB_REALPATH ${${_LNAME}_LIB} REALPATH) # resolves symlinks
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get_filename_component(_LIB_LIBDIR ${_LIB_REALPATH} DIRECTORY)
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get_filename_component(_LIB_JUSTNAME ${_LIB_REALPATH} NAME)
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if(APPLE)
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string(REGEX REPLACE "(\\.[0-9]*)\\.[0-9\\.]*dylib$" "\\1.dylib" _LIB_REGEXD "${_LIB_JUSTNAME}")
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else()
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string(REGEX REPLACE "(\\.[0-9]*)\\.[0-9\\.]*$" "\\1" _LIB_REGEXD "${_LIB_JUSTNAME}")
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endif()
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if(NOT EXISTS "${_LIB_LIBDIR}/${_LIB_REGEXD}")
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set(_LIB_REGEXD "${_LIB_JUSTNAME}")
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endif()
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set(${_LNAME}_LIBDIR "${_LIB_LIBDIR}")
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message(STATUS "dynamic lib${_LIB} -> ${_LIB_REGEXD}")
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set(${_LNAME}_LIB_SONAME ${_LIB_REGEXD})
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set(${_LNAME}_SHARED FALSE PARENT_SCOPE)
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set(soname "${_LNAME}_LIB_SONAME-NOTFOUND" PARENT_SCOPE)
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endif()
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set(${_LNAME}_LIB_SONAME "${soname}" PARENT_SCOPE)
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message(DEBUG "DYNLIB soname: ${soname}")
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message(DEBUG "DYNLIB OUTPUTVAR: ${_LIB} ... ${_LNAME}_LIB")
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message(DEBUG "DYNLIB ORIGINAL LIB: ${_LIB} ... ${${_LNAME}_LIB}")
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message(DEBUG "DYNLIB REALPATH LIB: ${_LIB} ... ${_LIB_REALPATH}")
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message(DEBUG "DYNLIB JUSTNAME LIB: ${_LIB} ... ${_LIB_JUSTNAME}")
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message(DEBUG "DYNLIB SONAME LIB: ${_LIB} ... ${_LIB_REGEXD}")
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endmacro()
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message(DEBUG "DYNLIB SONAME LIB: ${_LIB} ... $soname}")
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endfunction()
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macro(CheckDLOPEN)
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check_symbol_exists(dlopen "dlfcn.h" HAVE_DLOPEN_IN_LIBC)
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@ -121,8 +100,6 @@ macro(CheckALSA)
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endif()
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endif()
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if(NOT HAVE_ALSA_SHARED)
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#FIXME: remove this line and property generate sdl3.pc
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list(APPEND SDL_PC_PRIVATE_REQUIRES alsa)
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sdl_link_dependency(alsa LIBS ALSA::ALSA CMAKE_MODULE ALSA PKG_CONFIG_SPECS "${ALSA_PKG_CONFIG_SPEC}")
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endif()
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set(HAVE_SDL_AUDIO TRUE)
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