pkg:setup
ENV.delete "LD"
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 ]
args << "--disable-multilib" if DevelopmentTools.clang_build_version >= 1000
inreplace "libgcc/config/t-slibgcc-darwin", "@shlib_slibdir@", "#{HOMEBREW_PREFIX}/lib/gcc/#{version_suffix}"
mkdir "build" && cd build
if !MacOS::CLT.installed?
args << "--with-native-system-header-dir=/usr/include"
args << "--with-sysroot=#{MacOS.sdk_path}"
elsif MacOS.version >= :mojave
args << "--with-native-system-header-dir=/usr/include"
args << "--with-sysroot=/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk"
end
PKG_CONF=../configure pkg:configure *args
make BOOT_LDFLAGS=-Wl,-headerpad_max_DESTDIR=${PKG_DEST} install_names
make DESTDIR=${PKG_DEST} install
bin.install_symlink bin/"gfortran-#{version_suffix}" => "gfortran"