gcc/build

   1 #!/bin/sh -e
   2
   3 export CFLAGS="-O2 -pipe -march=westmere -ftree-vectorize"
   4 export CXXFLAGS="$CFLAGS"
   5
   6 # Make sure gmp is built with generic options.
   7 cp gcc/gmp/configfsf.guess gcc/gmp/config.guess
   8 cp gcc/gmp/configfsf.sub   gcc/gmp/config.sub
   9
  10 # Use lib not lib64 by default.
  11 sed '/m64=/s/lib64/lib/' gcc/gcc/config/i386/t-linux64 > _
  12 mv -f _ gcc/gcc/config/i386/t-linux64
  13 sed 's/lib64/lib/' gcc/gcc/config/i386/linux64.h > _
  14 mv -f _ gcc/gcc/config/i386/linux64.h
  15
  16 # Build must happen outside of gcc source.
  17 mkdir -p gcc-build
  18 cd gcc-build
  19
  20 # Grab the system's GCC version.
  21 gcc_version=$(gcc -dumpversion) || gcc_version=null
  22
  23 # Skip the bootstrap process if we are able.
  24 case $2 in "$gcc_version"*)
  25     printf '%s\n' "Minor version difference, disabling bootstrap."
  26     bootstrap=--disable-bootstrap
  27 esac
  28
  29 ../gcc/configure \
  30     --prefix=/usr \
  31     --libexecdir=/usr/lib \
  32     --mandir=/usr/share/man \
  33     --infodir=/usr/share/info \
  34     --disable-multilib \
  35     --disable-symvers \
  36     --disable-libmpx \
  37     --disable-libmudflap \
  38     --disable-libsanitizer \
  39     --disable-werror \
  40     --disable-fixed-point \
  41     --disable-libstdcxx-pch \
  42     --disable-nls \
  43     --enable-checking=release \
  44     --enable-__cxa_atexit \
  45     --enable-default-pie \
  46     --enable-default-ssp \
  47     --enable-shared \
  48     --enable-threads \
  49     --enable-tls \
  50     --enable-languages=c,c++ \
  51     --without-included-gettext \
  52     --with-zstd=no \
  53     --with-system-zlib \
  54     --build=x86_64-pc-linux-gnu \
  55     "${bootstrap:---enable-bootstrap}"
  56
  57 make
  58 make DESTDIR="$1" install
  59
  60 # Save 35MB.
  61 find "$1" -name libgtkpeer.a  -exec rm -f {} +
  62 find "$1" -name libgjsmalsa.a -exec rm -f {} +
  63 find "$1" -name libgij.a      -exec rm -f {} +
  64
  65 ln -sf gcc "$1/usr/bin/cc"
  66 cp -f ../c99 "$1/usr/bin"
  67
  68 # Symlink for LTO.
  69 {
  70     mkdir -p "$1/usr/lib/bfd-plugins"
  71
  72     ln -s "/usr/lib/gcc/x86_64-pc-linux-gnu/$2/liblto_plugin.so" \
  73           "$1/usr/lib/bfd-plugins/liblto_plugin.so"
  74 }