class Gcc < Formula desc "GNU compiler collection" homepage "https://gcc.gnu.org/" url "https://ftp.gnu.org/gnu/gcc/gcc-9.2.0/gcc-9.2.0.tar.xz" mirror "https://ftpmirror.gnu.org/gcc/gcc-9.2.0/gcc-9.2.0.tar.xz" sha256 "ea6ef08f121239da5695f76c9b33637a118dcf63e24164422231917fa61fb206" revision 1 head "https://gcc.gnu.org/git/gcc.git" bottle do sha256 "e1a6cd0d52fb715431063657cec4e3578170079168b612a6998d321d778330b1" => :catalina sha256 "12951cda5ca32814387a1106fdaea9c4d4dd55e9c27f0dc7c044ab5e00dca695" => :mojave sha256 "fd0945c648c9a6672892a9b17ce3108dd6b8319aaf67c2718290ea0d13e22f1b" => :high_sierra end # The bottles are built on systems with the CLT installed, and do not work # out of the box on Xcode-only systems due to an incorrect sysroot. pour_bottle? do reason "The bottle needs the Xcode CLT to be installed." satisfy { MacOS::CLT.installed? } end depends_on "gmp" depends_on "isl" depends_on "libmpc" depends_on "mpfr" # GCC bootstraps itself, so it is OK to have an incompatible C++ stdlib cxxstdlib_check :skip # Fix system headers for Catalina SDK # (otherwise __OSX_AVAILABLE_STARTING ends up undefined) if DevelopmentTools.clang_build_version >= 1100 patch do url "https://raw.githubusercontent.com/Homebrew/formula-patches/b8b8e65e/gcc/9.2.0-catalina.patch" sha256 "0b8d14a7f3c6a2f0d2498526e86e088926671b5da50a554ffa6b7f73ac4f132b" end end def version_suffix if build.head? "HEAD" else version.to_s.slice(/\d/) end end def install # GCC will suffer build errors if forced to use a particular linker. ENV.delete "LD" # We avoiding building: # - Ada, which requires a pre-existing GCC Ada compiler to bootstrap # - Go, currently not supported on macOS # - BRIG languages = %w[c c++ objc obj-c++ fortran] osmajor = `uname -r`.split(".").first pkgversion = "Homebrew GCC #{pkg_version} #{build.used_options*" "}".strip args = %W[ --build=x86_64-apple-darwin#{osmajor} --prefix=#{prefix} --libdir=#{lib}/gcc/#{version_suffix} --disable-nls --enable-checking=release --enable-languages=#{languages.join(",")} --program-suffix=-#{version_suffix} --with-gmp=#{Formula["gmp"].opt_prefix} --with-mpfr=#{Formula["mpfr"].opt_prefix} --with-mpc=#{Formula["libmpc"].opt_prefix} --with-isl=#{Formula["isl"].opt_prefix} --with-system-zlib --with-pkgversion=#{pkgversion} --with-bugurl=https://github.com/Homebrew/homebrew-core/issues ] # Xcode 10 dropped 32-bit support args << "--disable-multilib" if DevelopmentTools.clang_build_version >= 1000 # Ensure correct install names when linking against libgcc_s; # see discussion in https://github.com/Homebrew/legacy-homebrew/pull/34303 inreplace "libgcc/config/t-slibgcc-darwin", "@shlib_slibdir@", "#{HOMEBREW_PREFIX}/lib/gcc/#{version_suffix}" mkdir "build" do if !MacOS::CLT.installed? # For Xcode-only systems, we need to tell the sysroot path args << "--with-native-system-header-dir=/usr/include" args << "--with-sysroot=#{MacOS.sdk_path}" elsif MacOS.version >= :mojave # System headers are no longer located in /usr/include args << "--with-native-system-header-dir=/usr/include" args << "--with-sysroot=/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk" end system "../configure", *args # Use -headerpad_max_install_names in the build, # otherwise updated load commands won't fit in the Mach-O header. # This is needed because `gcc` avoids the superenv shim. system "make", "BOOT_LDFLAGS=-Wl,-headerpad_max_install_names" system "make", "install" bin.install_symlink bin/"gfortran-#{version_suffix}" => "gfortran" end # Handle conflicts between GCC formulae and avoid interfering # with system compilers. # Rename man7. Dir.glob(man7/"*.7") { |file| add_suffix file, version_suffix } # Even when we disable building info pages some are still installed. info.rmtree end def add_suffix(file, suffix) dir = File.dirname(file) ext = File.extname(file) base = File.basename(file, ext) File.rename file, "#{dir}/#{base}-#{suffix}#{ext}" end test do (testpath/"hello-c.c").write <<~EOS #include <stdio.h> int main() { puts("Hello, world!"); return 0; } EOS system "#{bin}/gcc-#{version_suffix}", "-o", "hello-c", "hello-c.c" assert_equal "Hello, world!\n", `./hello-c` (testpath/"hello-cc.cc").write <<~EOS #include <iostream> int main() { std::cout << "Hello, world!" << std::endl; return 0; } EOS system "#{bin}/g++-#{version_suffix}", "-o", "hello-cc", "hello-cc.cc" assert_equal "Hello, world!\n", `./hello-cc` (testpath/"test.f90").write <<~EOS integer,parameter::m=10000 real::a(m), b(m) real::fact=0.5 do concurrent (i=1:m) a(i) = a(i) + fact*b(i) end do write(*,"(A)") "Done" end EOS system "#{bin}/gfortran", "-o", "test", "test.f90" assert_equal "Done\n", `./test` end end