class LlvmAT6 < Formula desc "Next-gen compiler infrastructure" homepage "https://llvm.org/" url "https://releases.llvm.org/6.0.1/llvm-6.0.1.src.tar.xz" sha256 "b6d6c324f9c71494c0ccaf3dac1f16236d970002b42bb24a6c9e1634f7d0f4e2" bottle do cellar :any rebuild 1 sha256 "18a2a7fddfb7c3b7566547703414a84ea2464e875646da68a676b7b4db26961c" => :mojave sha256 "678c82b80c002acc096a4eb9d4554adeae839751e780831a953e21cbd8f368aa" => :high_sierra sha256 "9c243e27f8d49570e3fc0378605fa627ab6e57049d6d6e1376c9bbd88aa1f902" => :sierra sha256 "ae87b1ab1ca1994f18891831d36b23cff4ecb271265d7629b6c19f2a968f22ba" => :el_capitan end # Clang cannot find system headers if Xcode CLT is not installed pour_bottle? do reason "The bottle needs the Xcode CLT to be installed." satisfy { MacOS::CLT.installed? } end keg_only :versioned_formula option "with-toolchain", "Build with Toolchain to facilitate overriding system compiler" option "with-lldb", "Build LLDB debugger" option "with-python@2", "Build bindings against Homebrew's Python 2" deprecated_option "with-python" => "with-python@2" # https://llvm.org/docs/GettingStarted.html#requirement depends_on "cmake" => :build depends_on "libffi" if MacOS.version <= :snow_leopard depends_on "python@2" else depends_on "python@2" => :optional end if build.with? "lldb" depends_on "swig" if MacOS.version >= :lion depends_on :codesign => [{ :identity => "lldb_codesign", :with => "LLDB", :url => "https://llvm.org/svn/llvm-project/lldb/trunk/docs/code-signing.txt", }] end # According to the official llvm readme, GCC 4.7+ is required fails_with :gcc_4_0 fails_with :gcc_4_2 ("4.3".."4.6").each do |n| fails_with :gcc => n end resource "clang" do url "https://releases.llvm.org/6.0.1/cfe-6.0.1.src.tar.xz" sha256 "7c243f1485bddfdfedada3cd402ff4792ea82362ff91fbdac2dae67c6026b667" end resource "clang-extra-tools" do url "https://releases.llvm.org/6.0.1/clang-tools-extra-6.0.1.src.tar.xz" sha256 "0d2e3727786437574835b75135f9e36f861932a958d8547ced7e13ebdda115f1" end resource "compiler-rt" do url "https://releases.llvm.org/6.0.1/compiler-rt-6.0.1.src.tar.xz" sha256 "f4cd1e15e7d5cb708f9931d4844524e4904867240c306b06a4287b22ac1c99b9" end resource "libcxx" do url "https://releases.llvm.org/6.0.1/libcxx-6.0.1.src.tar.xz" sha256 "7654fbc810a03860e6f01a54c2297a0b9efb04c0b9aa0409251d9bdb3726fc67" end resource "libunwind" do url "https://releases.llvm.org/6.0.1/libunwind-6.0.1.src.tar.xz" sha256 "a8186c76a16298a0b7b051004d0162032b9b111b857fbd939d71b0930fd91b96" end resource "lld" do url "https://releases.llvm.org/6.0.1/lld-6.0.1.src.tar.xz" sha256 "e706745806921cea5c45700e13ebe16d834b5e3c0b7ad83bf6da1f28b0634e11" end resource "lldb" do url "https://releases.llvm.org/6.0.1/lldb-6.0.1.src.tar.xz" sha256 "6b8573841f2f7b60ffab9715c55dceff4f2a44e5a6d590ac189d20e8e7472714" end resource "openmp" do url "https://releases.llvm.org/6.0.1/openmp-6.0.1.src.tar.xz" sha256 "66afca2b308351b180136cf899a3b22865af1a775efaf74dc8a10c96d4721c5a" end resource "polly" do url "https://releases.llvm.org/6.0.1/polly-6.0.1.src.tar.xz" sha256 "e7765fdf6c8c102b9996dbb46e8b3abc41396032ae2315550610cf5a1ecf4ecc" end def install # Apple's libstdc++ is too old to build LLVM ENV.libcxx if ENV.compiler == :clang if build.with? "python@2" ENV.prepend_path "PATH", Formula["python@2"].opt_libexec/"bin" end (buildpath/"tools/clang").install resource("clang") (buildpath/"tools/clang/tools/extra").install resource("clang-extra-tools") (buildpath/"projects/openmp").install resource("openmp") (buildpath/"projects/libcxx").install resource("libcxx") (buildpath/"projects/libunwind").install resource("libunwind") (buildpath/"tools/lld").install resource("lld") (buildpath/"tools/polly").install resource("polly") if build.with? "lldb" if build.with? "python@2" pyhome = `python-config --prefix`.chomp ENV["PYTHONHOME"] = pyhome pylib = "#{pyhome}/lib/libpython2.7.dylib" pyinclude = "#{pyhome}/include/python2.7" end (buildpath/"tools/lldb").install resource("lldb") # Building lldb requires a code signing certificate. # The instructions provided by llvm creates this certificate in the # user's login keychain. Unfortunately, the login keychain is not in # the search path in a superenv build. The following three lines add # the login keychain to ~/Library/Preferences/com.apple.security.plist, # which adds it to the superenv keychain search path. mkdir_p "#{ENV["HOME"]}/Library/Preferences" username = ENV["USER"] system "security", "list-keychains", "-d", "user", "-s", "/Users/#{username}/Library/Keychains/login.keychain" end (buildpath/"projects/compiler-rt").install resource("compiler-rt") # compiler-rt has some iOS simulator features that require i386 symbols # I'm assuming the rest of clang needs support too for 32-bit compilation # to work correctly, but if not, perhaps universal binaries could be # limited to compiler-rt. llvm makes this somewhat easier because compiler-rt # can almost be treated as an entirely different build from llvm. ENV.permit_arch_flags args = %W[ -DLIBOMP_ARCH=x86_64 -DLINK_POLLY_INTO_TOOLS=ON -DLLVM_BUILD_EXTERNAL_COMPILER_RT=ON -DLLVM_BUILD_LLVM_DYLIB=ON -DLLVM_ENABLE_EH=ON -DLLVM_ENABLE_FFI=ON -DLLVM_ENABLE_LIBCXX=ON -DLLVM_ENABLE_RTTI=ON -DLLVM_INCLUDE_DOCS=OFF -DLLVM_INSTALL_UTILS=ON -DLLVM_OPTIMIZED_TABLEGEN=ON -DLLVM_TARGETS_TO_BUILD=all -DWITH_POLLY=ON -DFFI_INCLUDE_DIR=#{Formula["libffi"].opt_lib}/libffi-#{Formula["libffi"].version}/include -DFFI_LIBRARY_DIR=#{Formula["libffi"].opt_lib} ] args << "-DLLVM_CREATE_XCODE_TOOLCHAIN=ON" if build.with? "toolchain" if build.with?("lldb") && build.with?("python@2") args << "-DLLDB_RELOCATABLE_PYTHON=ON" args << "-DPYTHON_LIBRARY=#{pylib}" args << "-DPYTHON_INCLUDE_DIR=#{pyinclude}" end mkdir "build" do system "cmake", "-G", "Unix Makefiles", "..", *(std_cmake_args + args) system "make" system "make", "install" system "make", "install-xcode-toolchain" if build.with? "toolchain" end (share/"clang/tools").install Dir["tools/clang/tools/scan-{build,view}"] (share/"cmake").install "cmake/modules" inreplace "#{share}/clang/tools/scan-build/bin/scan-build", "$RealBin/bin/clang", "#{bin}/clang" bin.install_symlink share/"clang/tools/scan-build/bin/scan-build", share/"clang/tools/scan-view/bin/scan-view" man1.install_symlink share/"clang/tools/scan-build/man/scan-build.1" # install llvm python bindings (lib/"python2.7/site-packages").install buildpath/"bindings/python/llvm" (lib/"python2.7/site-packages").install buildpath/"tools/clang/bindings/python/clang" end def caveats; <<~EOS To use the bundled libc++ please add the following LDFLAGS: LDFLAGS="-L#{opt_lib} -Wl,-rpath,#{opt_lib}" EOS end test do assert_equal prefix.to_s, shell_output("#{bin}/llvm-config --prefix").chomp (testpath/"omptest.c").write <<~EOS #include <stdlib.h> #include <stdio.h> #include <omp.h> int main() { #pragma omp parallel num_threads(4) { printf("Hello from thread %d, nthreads %d\\n", omp_get_thread_num(), omp_get_num_threads()); } return EXIT_SUCCESS; } EOS clean_version = version.to_s[/(\d+\.?)+/] system "#{bin}/clang", "-L#{lib}", "-fopenmp", "-nobuiltininc", "-I#{lib}/clang/#{clean_version}/include", "omptest.c", "-o", "omptest" testresult = shell_output("./omptest") sorted_testresult = testresult.split("\n").sort.join("\n") expected_result = <<~EOS Hello from thread 0, nthreads 4 Hello from thread 1, nthreads 4 Hello from thread 2, nthreads 4 Hello from thread 3, nthreads 4 EOS assert_equal expected_result.strip, sorted_testresult.strip (testpath/"test.c").write <<~EOS #include <stdio.h> int main() { printf("Hello World!\\n"); return 0; } EOS (testpath/"test.cpp").write <<~EOS #include <iostream> int main() { std::cout << "Hello World!" << std::endl; return 0; } EOS # Testing Command Line Tools if MacOS::CLT.installed? libclangclt = Dir["/Library/Developer/CommandLineTools/usr/lib/clang/#{MacOS::CLT.version.to_i}*"].last { |f| File.directory? f } system "#{bin}/clang++", "-v", "-nostdinc", "-I/Library/Developer/CommandLineTools/usr/include/c++/v1", "-I#{libclangclt}/include", "-I/usr/include", # need it because /Library/.../usr/include/c++/v1/iosfwd refers to <wchar.h>, which CLT installs to /usr/include "test.cpp", "-o", "testCLT++" assert_includes MachO::Tools.dylibs("testCLT++"), "/usr/lib/libc++.1.dylib" assert_equal "Hello World!", shell_output("./testCLT++").chomp system "#{bin}/clang", "-v", "-nostdinc", "-I/usr/include", # this is where CLT installs stdio.h "test.c", "-o", "testCLT" assert_equal "Hello World!", shell_output("./testCLT").chomp end # Testing Xcode if MacOS::Xcode.installed? libclangxc = Dir["#{MacOS::Xcode.toolchain_path}/usr/lib/clang/#{DevelopmentTools.clang_version}*"].last { |f| File.directory? f } system "#{bin}/clang++", "-v", "-nostdinc", "-I#{MacOS::Xcode.toolchain_path}/usr/include/c++/v1", "-I#{libclangxc}/include", "-I#{MacOS.sdk_path}/usr/include", "test.cpp", "-o", "testXC++" assert_includes MachO::Tools.dylibs("testXC++"), "/usr/lib/libc++.1.dylib" assert_equal "Hello World!", shell_output("./testXC++").chomp system "#{bin}/clang", "-v", "-nostdinc", "-I#{MacOS.sdk_path}/usr/include", "test.c", "-o", "testXC" assert_equal "Hello World!", shell_output("./testXC").chomp end # link against installed libc++ # related to https://github.com/Homebrew/legacy-homebrew/issues/47149 system "#{bin}/clang++", "-v", "-nostdinc", "-std=c++11", "-stdlib=libc++", "-I#{MacOS::Xcode.toolchain_path}/usr/include/c++/v1", "-I#{libclangxc}/include", "-I#{MacOS.sdk_path}/usr/include", "-L#{lib}", "-Wl,-rpath,#{lib}", "test.cpp", "-o", "test" assert_includes MachO::Tools.dylibs("test"), "#{opt_lib}/libc++.1.dylib" assert_equal "Hello World!", shell_output("./test").chomp end end