import("//llvm/utils/gn/build/symbol_exports.gni")
import("//llvm/version.gni")

# This build file is just enough to get check-clang to pass, it's missing
# several things from the CMake build:
# - a build target copying the Python bindings
# - the GN build doesn't have LIBCLANG_BUILD_STATIC

action("linker_script_to_exports") {
  script = "linker-script-to-export-list.py"
  inputs = [ "libclang.map" ]
  outputs = [ "$target_gen_dir/libclang.exports" ]
  args = [
    rebase_path(inputs[0], root_build_dir),
    rebase_path(outputs[0], root_build_dir),
  ]
}

symbol_exports("exports") {
  deps = [ ":linker_script_to_exports" ]
  exports_file = "$target_gen_dir/libclang.exports"
}

shared_library("libclang") {
  configs += [ "//llvm/utils/gn/build:clang_code" ]
  deps = [
    "//clang/include/clang/Config",
    "//clang/lib/AST",
    "//clang/lib/Basic",
    "//clang/lib/ExtractAPI",
    "//clang/lib/Frontend",
    "//clang/lib/Headers",
    "//clang/lib/Index",
    "//clang/lib/Lex",
    "//clang/lib/Sema",
    "//clang/lib/Tooling",
    "//llvm/include/llvm/Config:llvm-config",
    "//llvm/lib/IR",
    "//llvm/lib/Support",
    "//llvm/lib/Target:TargetsToBuild",
    "//llvm/lib/TargetParser",
  ]
  if (current_os == "win" || current_os == "mac") {
    deps += [ ":exports" ]
  } else {
    inputs = [ "libclang.map" ]
    ldflags =
        [ "-Wl,--version-script," + rebase_path(inputs[0], root_build_dir) ]
  }

  defines = []

  if (host_os == "win") {
    defines += [ "_CINDEX_LIB_" ]
  }

  sources = [
    "../../include/clang-c/Index.h",
    "BuildSystem.cpp",
    "CIndex.cpp",
    "CIndexCXX.cpp",
    "CIndexCodeCompletion.cpp",
    "CIndexDiagnostic.cpp",
    "CIndexDiagnostic.h",
    "CIndexHigh.cpp",
    "CIndexInclusionStack.cpp",
    "CIndexUSRs.cpp",
    "CIndexer.cpp",
    "CIndexer.h",
    "CXComment.cpp",
    "CXCompilationDatabase.cpp",
    "CXCursor.cpp",
    "CXCursor.h",
    "CXExtractAPI.cpp",
    "CXIndexDataConsumer.cpp",
    "CXLoadedDiagnostic.cpp",
    "CXLoadedDiagnostic.h",
    "CXSourceLocation.cpp",
    "CXSourceLocation.h",
    "CXStoredDiagnostic.cpp",
    "CXString.cpp",
    "CXString.h",
    "CXTranslationUnit.h",
    "CXType.cpp",
    "CXType.h",
    "FatalErrorHandler.cpp",
    "Index_Internal.h",
    "Indexing.cpp",
    "Obsolete.cpp",
    "Rewrite.cpp",
  ]
  if (host_os == "mac") {
    ldflags = [
      "-Wl,-compatibility_version,1",
      "-Wl,-current_version,$llvm_version",

      # See llvm_setup_rpath() in CMake.
      "-Wl,-install_name,@rpath/libclang.dylib",
      "-Wl,-rpath,@loader_path/../lib",
    ]
  }
}