llvm34.rb

class Llvm34 < Formula
  desc "Next-gen compiler infrastructure"
  homepage "http://llvm.org/"

  stable do
    url "http://llvm.org/releases/3.4.2/llvm-3.4.2.src.tar.gz"
    sha256 "17038d47069ad0700c063caed76f0c7259628b0e79651ce2b540d506f2f1efd7"

    resource "clang" do
      url "http://llvm.org/releases/3.4.2/cfe-3.4.2.src.tar.gz"
      sha256 "5ba6f5772f8d00f445209356a7daf83c5bca2da5acd10de517ad2359ae95bc10"
    end

    resource "clang-tools-extra" do
      url "http://llvm.org/releases/3.4/clang-tools-extra-3.4.src.tar.gz"
      sha256 "ba85187551ae97fe1c8ab569903beae5ff0900e21233e5eb5389f6ceab1028b4"
    end

    resource "compiler-rt" do
      url "http://llvm.org/releases/3.4/compiler-rt-3.4.src.tar.gz"
      sha256 "f37c89b1383ce462d47537a0245ac798600887a9be9f63073e16b79ed536ab5c"
    end

    resource "polly" do
      url "http://llvm.org/releases/3.4/polly-3.4.src.tar.gz"
      sha256 "9f1a5fb73dddc0afe47a0f4108dea818e0d1d16485899141957f87f75fa50ee7"
    end

    resource "libcxx" do
      url "http://llvm.org/releases/3.4.2/libcxx-3.4.2.src.tar.gz"
      sha256 "826543ee2feb5d3313b0705145255ebb2ed8d52eace878279c2525ccde6e727c"
    end
  end

  bottle do
    revision 1
    sha256 "2cb08d19398c58824325d5d6535f239078e755d555d21ff00dc56aada694e3b2" => :yosemite
    sha256 "3cbe768ace7f2c21386ef1955e0a1388bfacdb70e2896944cd64e6cade2e7c74" => :mavericks
    sha256 "95009c6e37dc4e9da629bf9c844d676b34cce739ea635232132073baace71700" => :mountain_lion
  end

  head do
    url "http://llvm.org/git/llvm.git", :branch => "release_34"

    resource "clang" do
      url "http://llvm.org/git/clang.git", :branch => "release_34"
    end

    resource "clang-tools-extra" do
      url "http://llvm.org/git/clang-tools-extra.git", :branch => "release_34"
    end

    resource "compiler-rt" do
      url "http://llvm.org/git/compiler-rt.git", :branch => "release_34"
    end

    resource "polly" do
      url "http://llvm.org/git/polly.git", :branch => "release_34"
    end

    resource "libcxx" do
      url "http://llvm.org/git/libcxx.git", :branch => "release_34"
    end
  end

  resource "libcxxabi" do
    url "http://llvm.org/git/libcxxabi.git", :branch => "release_32"
  end if MacOS.version <= :snow_leopard

  patch :DATA

  option :universal
  option "with-asan", "Include support for -faddress-sanitizer (from compiler-rt)"
  option "without-shared", "Don't build LLVM as a shared library"
  option "with-all-targets", "Build all target backends"
  option "without-assertions", "Speeds up LLVM, but provides less debug information"

  deprecated_option "disable-shared" => "without-shared"
  deprecated_option "all-targets" => "with-all-targets"
  deprecated_option "disable-assertions" => "without-assertions"

  depends_on "gmp"
  depends_on "isl"
  depends_on "cloog"
  depends_on "libffi" => :recommended

  # version suffix
  def ver
    "3.4"
  end

  # LLVM installs its own standard library which confuses stdlib checking.
  cxxstdlib_check :skip

  def install
    clang_buildpath = buildpath/"tools/clang"
    libcxx_buildpath = buildpath/"projects/libcxx"
    libcxxabi_buildpath = buildpath/"libcxxabi" # build failure if put in projects due to no Makefile

    clang_buildpath.install resource("clang")
    libcxx_buildpath.install resource("libcxx")
    (buildpath/"tools/polly").install resource("polly")
    (buildpath/"tools/clang/tools/extra").install resource("clang-tools-extra")
    (buildpath/"projects/compiler-rt").install resource("compiler-rt") if build.with? "asan"

    if build.universal?
      ENV.permit_arch_flags
      ENV["UNIVERSAL"] = "1"
      ENV["UNIVERSAL_ARCH"] = Hardware::CPU.universal_archs.join(" ")
    end

    ENV["REQUIRES_RTTI"] = "1"

    install_prefix = lib/"llvm-#{ver}"

    args = [
      "--prefix=#{install_prefix}",
      "--enable-optimized",
      "--disable-bindings",
      "--with-gmp=#{Formula["gmp"].opt_prefix}",
      "--with-isl=#{Formula["isl"].opt_prefix}",
      "--with-cloog=#{Formula["cloog"].opt_prefix}",
    ]

    if build.include? "all-targets"
      args << "--enable-targets=all"
    else
      args << "--enable-targets=host"
    end

    args << "--enable-shared" unless build.include? "disable-shared"

    args << "--disable-assertions" if build.include? "disable-assertions"

    args << "--enable-libffi" if build.with? "libffi"

    system "./configure", *args
    system "make", "VERBOSE=1"
    system "make", "VERBOSE=1", "install"

    if MacOS.version <= :snow_leopard
      libcxxabi_buildpath.install resource("libcxxabi")

      cd libcxxabi_buildpath/"lib" do
        # Set rpath to save user from setting DYLD_LIBRARY_PATH
        inreplace "buildit", "-install_name /usr/lib/libc++abi.dylib", "-install_name #{install_prefix}/usr/lib/libc++abi.dylib"

        ENV["CC"] = "#{install_prefix}/bin/clang"
        ENV["CXX"] = "#{install_prefix}/bin/clang++"
        ENV["TRIPLE"] = "*-apple-*"
        system "./buildit"
        (install_prefix/"usr/lib").install "libc++abi.dylib"
        cp libcxxabi_buildpath/"include/cxxabi.h", install_prefix/"lib/c++/v1"
      end

      # Snow Leopard make rules hardcode libc++ and libc++abi path.
      # Change to Cellar path here.
      inreplace "#{libcxx_buildpath}/lib/buildit" do |s|
        s.gsub! "-install_name /usr/lib/libc++.1.dylib", "-install_name #{install_prefix}/usr/lib/libc++.1.dylib"
        s.gsub! "-Wl,-reexport_library,/usr/lib/libc++abi.dylib", "-Wl,-reexport_library,#{install_prefix}/usr/lib/libc++abi.dylib"
      end

      # On Snow Leopard and older system libc++abi is not shipped but
      # needed here. It is hard to tweak environment settings to change
      # include path as libc++ uses a custom build script, so just
      # symlink the needed header here.
      ln_s libcxxabi_buildpath/"include/cxxabi.h", libcxx_buildpath/"include"
    end

    # Putting libcxx in projects only ensures that headers are installed.
    # Manually "make install" to actually install the shared libs.
    libcxx_make_args = [
      # Use the built clang for building
      "CC=#{install_prefix}/bin/clang",
      "CXX=#{install_prefix}/bin/clang++",
      # Properly set deployment target, which is needed for Snow Leopard
      "MACOSX_DEPLOYMENT_TARGET=#{MacOS.version}",
      # The following flags are needed so it can be installed correctly.
      "DSTROOT=#{install_prefix}",
      "SYMROOT=#{libcxx_buildpath}",
    ]

    system "make", "-C", libcxx_buildpath, "install", *libcxx_make_args

    (share/"clang-#{ver}/tools").install Dir["tools/clang/tools/scan-{build,view}"]

    (lib/"python2.7/site-packages").install "bindings/python/llvm" => "llvm-#{ver}",
                                            clang_buildpath/"bindings/python/clang" => "clang-#{ver}"

    Dir.glob(install_prefix/"bin/*") do |exec_path|
      basename = File.basename(exec_path)
      bin.install_symlink exec_path => "#{basename}-#{ver}"
    end

    Dir.glob(install_prefix/"share/man/man1/*") do |manpage|
      basename = File.basename(manpage, ".1")
      man1.install_symlink manpage => "#{basename}-#{ver}.1"
    end
  end

  def caveats; <<-EOS.undent
    Extra tools are installed in #{opt_share}/clang-#{ver}

    To link to libc++, something like the following is required:
      CXX="clang++-#{ver} -stdlib=libc++"
      CXXFLAGS="$CXXFLAGS -nostdinc++ -I#{opt_lib}/llvm-#{ver}/include/c++/v1"
      LDFLAGS="$LDFLAGS -L#{opt_lib}/llvm-#{ver}/lib"
    EOS
  end

  test do
    system "#{bin}/llvm-config-#{ver}", "--version"
  end
end

__END__
diff --git a/Makefile.rules b/Makefile.rules
index fde77f9..3a9b81f 100644
--- a/Makefile.rules
+++ b/Makefile.rules
@@ -581,6 +581,17 @@ ifdef SHARED_LIBRARY
 ifneq ($(HOST_OS), $(filter $(HOST_OS), Cygwin MingW))
 ifneq ($(HOST_OS),Darwin)
   LD.Flags += $(RPATH) -Wl,'$$ORIGIN'
+else
+  ifeq ($(DARWIN_MAJVERS),4)
+    LD.Flags += -Wl,-dylib_install_name
+  else
+    LD.Flags += -Wl,-install_name
+  endif
+  ifdef LOADABLE_MODULE
+    LD.Flags += -Wl,"$(PROJ_libdir)/$(LIBRARYNAME)$(SHLIBEXT)"
+  else
+    LD.Flags += -Wl,"$(PROJ_libdir)/$(SharedPrefix)$(LIBRARYNAME)$(SHLIBEXT)"
+  endif
 endif
 endif
 endif
diff --git a/tools/llvm-shlib/Makefile b/tools/llvm-shlib/Makefile
index b912ea6..9c3a670 100644
--- a/tools/llvm-shlib/Makefile
+++ b/tools/llvm-shlib/Makefile
@@ -54,14 +54,6 @@ ifeq ($(HOST_OS),Darwin)
     # extra options to override libtool defaults 
     LLVMLibsOptions    := $(LLVMLibsOptions)  \
                          -Wl,-dead_strip
-
-    # Mac OS X 10.4 and earlier tools do not allow a second -install_name on command line
-    DARWIN_VERS := $(shell echo $(TARGET_TRIPLE) | sed 's/.*darwin\([0-9]*\).*/\1/')
-    ifneq ($(DARWIN_VERS),8)
-       LLVMLibsOptions    := $(LLVMLibsOptions)  \
-                            -Wl,-install_name \
-                            -Wl,"@rpath/lib$(LIBRARYNAME)$(SHLIBEXT)"
-    endif
 endif
 
 ifeq ($(HOST_OS), $(filter $(HOST_OS), DragonFly Linux FreeBSD GNU/kFreeBSD OpenBSD GNU Bitrig))
diff --git a/tools/lto/Makefile b/tools/lto/Makefile
index cedbee1..3a18141 100644
--- a/tools/lto/Makefile
+++ b/tools/lto/Makefile
@@ -41,14 +41,6 @@ ifeq ($(HOST_OS),Darwin)
     LLVMLibsOptions    := $(LLVMLibsOptions)  \
                          -Wl,-dead_strip
 
-    # Mac OS X 10.4 and earlier tools do not allow a second -install_name on command line
-    DARWIN_VERS := $(shell echo $(TARGET_TRIPLE) | sed 's/.*darwin\([0-9]*\).*/\1/')
-    ifneq ($(DARWIN_VERS),8)
-       LLVMLibsOptions    := $(LLVMLibsOptions)  \
-                            -Wl,-install_name \
-                            -Wl,"@executable_path/../lib/lib$(LIBRARYNAME)$(SHLIBEXT)"
-    endif
-
     # If we're doing an Apple-style build, add the LTO object path.
     ifeq ($(RC_XBS),YES)
        TempFile        := $(shell mkdir -p ${OBJROOT}/dSYMs ; mktemp ${OBJROOT}/dSYMs/llvm-lto.XXXXXX)