class LlvmAT7 < Formula desc "Next-gen compiler infrastructure" homepage "https://llvm.org/" url "https://releases.llvm.org/7.1.0/llvm-7.1.0.src.tar.xz" sha256 "1bcc9b285074ded87b88faaedddb88e6b5d6c331dfcfb57d7f3393dd622b3764" bottle do cellar :any sha256 "5140804e0811f7fd438e4f71f482b1009e59626704ed4c203180ddeeec4679de" => :mojave sha256 "b5ea5a124052b61ae6209346ab7626c2042c0c697d67f4d3a1d2350abd72d24b" => :high_sierra sha256 "7cf4cfc283d47db73b00b73a3ad50c058cc9abf897829db25bf1f83726f15e2d" => :sierra 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 # https://llvm.org/docs/GettingStarted.html#requirement depends_on "cmake" => :build depends_on :xcode => :build depends_on "libffi" resource "clang" do url "https://releases.llvm.org/7.1.0/cfe-7.1.0.src.tar.xz" sha256 "e97dc472aae52197a4d5e0185eb8f9e04d7575d2dc2b12194ddc768e0f8a846d" end resource "clang-extra-tools" do url "https://releases.llvm.org/7.1.0/clang-tools-extra-7.1.0.src.tar.xz" sha256 "1ce0042c48ecea839ce67b87e9739cf18e7a5c2b3b9a36d177d00979609b6451" end resource "compiler-rt" do url "https://releases.llvm.org/7.1.0/compiler-rt-7.1.0.src.tar.xz" sha256 "057bdac0581215b5ceb39edfd5bbef9eb79578f16a8908349f3066251fba88d8" end resource "libcxx" do url "https://releases.llvm.org/7.1.0/libcxx-7.1.0.src.tar.xz" sha256 "4442b408eaea3c1e4aa2cf21da38aba9f0856b4b522b1c3d555c3251af62b04e" end resource "libunwind" do url "https://releases.llvm.org/7.1.0/libunwind-7.1.0.src.tar.xz" sha256 "174a7fc9eb7422c8ea96993649be0f80ca5937f3fe000c40c3d15b1074d7ad0c" end resource "lld" do url "https://releases.llvm.org/7.1.0/lld-7.1.0.src.tar.xz" sha256 "a10f274a0a09408eaf9c088dec6fb2254f7d641221437763c94546cbfe595867" end resource "openmp" do url "https://releases.llvm.org/7.1.0/openmp-7.1.0.src.tar.xz" sha256 "1ee73aa1eef4ef7f75c96b24bf02445440602064c0074891ca5344a63f1fe5b5" end resource "polly" do url "https://releases.llvm.org/7.1.0/polly-7.1.0.src.tar.xz" sha256 "305454f72db5e30def3f48e2dc56ce62f9c52c3b9278b8f357a093a588b6139b" end def install # Apple's libstdc++ is too old to build LLVM ENV.libcxx if ENV.compiler == :clang (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") (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} -DLLVM_CREATE_XCODE_TOOLCHAIN=ON ] mkdir "build" do system "cmake", "-G", "Unix Makefiles", "..", *(std_cmake_args + args) system "make" system "make", "install" system "make", "install-xcode-toolchain" end (share/"cmake").install "cmake/modules" (share/"clang/tools").install Dir["tools/clang/tools/scan-{build,view}"] # scan-build is in Perl, so the @ in our path needs to be escaped inreplace "#{share}/clang/tools/scan-build/bin/scan-build", "$RealBin/bin/clang", "#{bin}/clang".gsub("@", "\\@") 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 #include #include 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 int main() { printf("Hello World!\\n"); return 0; } EOS (testpath/"test.cpp").write <<~EOS #include 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 , 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