[CMake] Add compiler options and target helpers

1 files changed, 184 insertions, 0 deletions

diff --git a/rcc/cmake/modules/AddRCC.cmake b/rcc/cmake/modules/AddRCC.cmake
new file mode 100644
index 0000000..11bd92e
--- /dev/null
+++ b/rcc/cmake/modules/AddRCC.cmake
@@ -0,0 +1,184 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+include_guard(GLOBAL)
+include(GNUInstallDirs)
+include(HandleRCCOptions)
+
+macro(rcc_configure_output_directories)
+  set(RCC_RUNTIME_OUTPUT_INTDIR "${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin")
+  set(RCC_LIBRARY_OUTPUT_INTDIR "${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib")
+  set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${RCC_RUNTIME_OUTPUT_INTDIR}")
+  set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${RCC_LIBRARY_OUTPUT_INTDIR}")
+  set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${RCC_LIBRARY_OUTPUT_INTDIR}")
+endmacro()
+
+function(rcc_set_output_directory target)
+  if(WIN32 OR CYGWIN)
+    set(moduleDir "${RCC_RUNTIME_OUTPUT_INTDIR}")
+  else()
+    set(moduleDir "${RCC_LIBRARY_OUTPUT_INTDIR}")
+  endif()
+  if(NOT CMAKE_CFG_INTDIR STREQUAL ".")
+    foreach(buildMode IN LISTS CMAKE_CONFIGURATION_TYPES)
+      string(TOUPPER "${buildMode}" configSuffix)
+      if(RCC_RUNTIME_OUTPUT_INTDIR)
+        string(REPLACE "${CMAKE_CFG_INTDIR}" "${buildMode}" binaryDir "${RCC_RUNTIME_OUTPUT_INTDIR}")
+        set_target_properties(${target} PROPERTIES RUNTIME_OUTPUT_DIRECTORY_${configSuffix} "${binaryDir}")
+      endif()
+      if(RCC_LIBRARY_OUTPUT_INTDIR)
+        string(REPLACE "${CMAKE_CFG_INTDIR}" "${buildMode}" libraryDir "${RCC_LIBRARY_OUTPUT_INTDIR}")
+        set_target_properties(${target} PROPERTIES ARCHIVE_OUTPUT_DIRECTORY_${configSuffix} "${libraryDir}")
+      endif()
+      if(moduleDir)
+        string(REPLACE "${CMAKE_CFG_INTDIR}" "${buildMode}" configModuleDir "${moduleDir}")
+        set_target_properties(${target} PROPERTIES LIBRARY_OUTPUT_DIRECTORY_${configSuffix} "${configModuleDir}")
+      endif()
+    endforeach()
+  else()
+    if(RCC_RUNTIME_OUTPUT_INTDIR)
+      set_target_properties(${target} PROPERTIES RUNTIME_OUTPUT_DIRECTORY "${RCC_RUNTIME_OUTPUT_INTDIR}")
+    endif()
+    if(RCC_LIBRARY_OUTPUT_INTDIR)
+      set_target_properties(${target} PROPERTIES ARCHIVE_OUTPUT_DIRECTORY "${RCC_LIBRARY_OUTPUT_INTDIR}")
+    endif()
+    if(moduleDir)
+      set_target_properties(${target} PROPERTIES LIBRARY_OUTPUT_DIRECTORY "${moduleDir}")
+    endif()
+  endif()
+endfunction()
+
+function(rcc_update_pch target)
+  if(RCC_REQUIRES_RTTI OR RCC_REQUIRES_EH)
+    set(arg_DISABLE_PCH_REUSE ON)
+  endif()
+  get_target_property(sources ${target} SOURCES)
+  foreach(source IN LISTS sources)
+    get_filename_component(extension "${source}" EXT)
+    if(extension STREQUAL ".c" AND NOT arg_PRECOMPILE_HEADERS)
+      set(arg_DISABLE_PCH_REUSE ON)
+    elseif(extension STREQUAL ".mm")
+      set(arg_DISABLE_PCH_REUSE ON)
+    endif()
+  endforeach()
+  get_target_property(targetType ${target} TYPE)
+  if(targetType STREQUAL "EXECUTABLE")
+    get_target_property(positionIndependent ${target} POSITION_INDEPENDENT_CODE)
+    if(positionIndependent)
+      set(arg_DISABLE_PCH_REUSE ON)
+    endif()
+  endif()
+
+  set(pchPriority 0)
+  foreach(library IN LISTS arg_LINK_LIBS)
+    if(TARGET ${library})
+      get_target_property(libraryPriority ${library} RCC_PCH_PRIORITY)
+      get_target_property(libraryPCHDisabled ${library} DISABLE_PRECOMPILE_HEADERS)
+      if(libraryPriority GREATER pchPriority AND NOT libraryPCHDisabled)
+        set(pchPriority "${libraryPriority}")
+        set(pchReuse "${library}")
+      endif()
+    endif()
+  endforeach()
+  if(arg_PRECOMPILE_HEADERS)
+    message(DEBUG "Adding PCH ${arg_PRECOMPILE_HEADERS} for ${target} (prio ${pchPriority})")
+    target_precompile_headers(${target} PRIVATE "$<$<COMPILE_LANGUAGE:CXX>:${arg_PRECOMPILE_HEADERS}>")
+    if(NOT arg_DISABLE_PCH_REUSE)
+      math(EXPR pchPriority "${pchPriority} + 1")
+      set_target_properties(${target} PROPERTIES RCC_PCH_PRIORITY "${pchPriority}")
+    endif()
+  elseif(pchReuse AND NOT arg_DISABLE_PCH_REUSE)
+    message(DEBUG "Using PCH ${pchReuse} for ${target} (prio ${pchPriority})")
+    target_precompile_headers(${target} REUSE_FROM ${pchReuse})
+  else()
+    message(DEBUG "Using NO PCH for ${target}")
+  endif()
+endfunction()
+
+function(rcc_setup_rpath target)
+  if(CMAKE_INSTALL_RPATH)
+    return()
+  endif()
+  set(extraLibraryDir "")
+  if(RCC_INSTALL_PREFIX AND NOT RCC_INSTALL_PREFIX STREQUAL CMAKE_INSTALL_PREFIX)
+    set(extraLibraryDir "${RCC_LIBRARY_DIR}")
+  elseif(RCC_BUILD_LIBRARY_DIR)
+    set(extraLibraryDir "${RCC_LIBRARY_DIR}")
+  endif()
+  get_target_property(targetType ${target} TYPE)
+  if(targetType STREQUAL "EXECUTABLE")
+    set(installDirectory "${CMAKE_INSTALL_FULL_BINDIR}")
+  else()
+    set(installDirectory "${CMAKE_INSTALL_FULL_LIBDIR}")
+  endif()
+  file(RELATIVE_PATH relativeLibraryDir "${installDirectory}" "${CMAKE_INSTALL_FULL_LIBDIR}")
+
+  if(APPLE)
+    set(installName INSTALL_NAME_DIR "@rpath")
+    set(installRpath "@loader_path/${relativeLibraryDir}" ${extraLibraryDir})
+  elseif(CMAKE_SYSTEM_NAME MATCHES "AIX" AND BUILD_SHARED_LIBS)
+    set(installRpath "${RCC_LIBRARY_OUTPUT_INTDIR}" "${CMAKE_INSTALL_FULL_LIBDIR}" ${extraLibraryDir})
+  elseif(UNIX)
+    set(buildRpath "\$ORIGIN/../lib" ${extraLibraryDir})
+    set(installRpath "\$ORIGIN/${relativeLibraryDir}")
+    if(CMAKE_SYSTEM_NAME MATCHES "FreeBSD|DragonFly")
+      target_link_options(${target} PRIVATE "LINKER:-z,origin")
+    endif()
+    if(RCC_LINKER_IS_GNULD AND RCC_LIBRARY_OUTPUT_INTDIR)
+      target_link_options(${target} PRIVATE "LINKER:-rpath-link,${RCC_LIBRARY_OUTPUT_INTDIR}")
+    endif()
+  else()
+    return()
+  endif()
+  if("${CMAKE_BUILD_RPATH}" STREQUAL "")
+    if(CMAKE_SYSTEM_NAME MATCHES "Darwin|AIX")
+      set_target_properties(${target} PROPERTIES BUILD_WITH_INSTALL_RPATH ON)
+    else()
+      set_property(TARGET ${target} APPEND PROPERTY BUILD_RPATH "${buildRpath}")
+    endif()
+  endif()
+  set_target_properties(${target} PROPERTIES INSTALL_RPATH "${installRpath}" ${installName})
+endfunction()
+
+function(rcc_configure_target target)
+  rcc_apply_options(${target})
+  rcc_set_output_directory(${target})
+  rcc_update_pch(${target})
+  get_target_property(targetType ${target} TYPE)
+  if(targetType MATCHES "^(EXECUTABLE|SHARED_LIBRARY|MODULE_LIBRARY)$" AND NOT arg_NO_INSTALL_RPATH)
+    rcc_setup_rpath(${target})
+  endif()
+  if(targetType STREQUAL "SHARED_LIBRARY")
+    if(MSVC)
+      set_target_properties(${target} PROPERTIES PREFIX "")
+    endif()
+    if(UNIX)
+      set_target_properties(${target} PROPERTIES
+        VERSION "${RCC_VERSION_MAJOR}.${RCC_VERSION_MINOR}"
+        SOVERSION "${RCC_VERSION_MAJOR}.${RCC_VERSION_MINOR}")
+    endif()
+  endif()
+endfunction()
+
+function(add_rcc_library name)
+  cmake_parse_arguments(PARSE_ARGV 1 arg "DISABLE_PCH_REUSE;NO_INSTALL_RPATH" "" "LINK_LIBS;PRECOMPILE_HEADERS")
+  add_library(${name} ${arg_UNPARSED_ARGUMENTS})
+  target_link_libraries(${name} PUBLIC RCCHeaders ${arg_LINK_LIBS})
+  rcc_configure_target(${name})
+  install(TARGETS ${name} EXPORT RCCTargets
+    ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+    LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+    RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}")
+endfunction()
+
+function(add_rcc_executable name)
+  cmake_parse_arguments(PARSE_ARGV 1 arg "DISABLE_PCH_REUSE;NO_INSTALL_RPATH" "" "LINK_LIBS;PRECOMPILE_HEADERS")
+  add_executable(${name} ${arg_UNPARSED_ARGUMENTS})
+  target_link_libraries(${name} PRIVATE RCCHeaders ${arg_LINK_LIBS})
+  rcc_configure_target(${name})
+endfunction()
+
+function(add_rcc_tool name)
+  add_rcc_executable(${name} ${ARGN})
+  install(TARGETS ${name} EXPORT RCCTargets
+    RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}")
+endfunction()