src/ci/docker/host-x86_64/dist-x86_64-linux/build-gcc.sh

   1 #!/usr/bin/env bash
   2 set -ex
   3
   4 source shared.sh
   5
   6 GCC=5.5.0
   7
   8 curl https://ftp.gnu.org/gnu/gcc/gcc-$GCC/gcc-$GCC.tar.xz | xzcat | tar xf -
   9 cd gcc-$GCC
  10
  11 # FIXME(#49246): Remove the `sed` below.
  12 #
  13 # On 2018 March 21st, two Travis builders' cache for Docker are suddenly invalidated. Normally this
  14 # is fine, because we just need to rebuild the Docker image. However, it reveals a network issue:
  15 # downloading from `ftp://gcc.gnu.org/` from Travis (using passive mode) often leads to "Connection
  16 # timed out" error, and even when the download completed, the file is usually corrupted. This causes
  17 # nothing to be landed that day.
  18 #
  19 # We observed that the `gcc-4.8.5.tar.bz2` above can be downloaded successfully, so as a stability
  20 # improvement we try to download from the HTTPS mirror instead. Turns out this uncovered the third
  21 # bug: the host `gcc.gnu.org` and `cygwin.com` share the same IP, and the TLS certificate of the
  22 # latter host is presented to `wget`! Therefore, we choose to download from the insecure HTTP server
  23 # instead here.
  24 #
  25 sed -i'' 's|ftp://gcc\.gnu\.org/|http://gcc.gnu.org/|g' ./contrib/download_prerequisites
  26
  27 ./contrib/download_prerequisites
  28 mkdir ../gcc-build
  29 cd ../gcc-build
  30 hide_output ../gcc-$GCC/configure \
  31     --prefix=/rustroot \
  32     --enable-languages=c,c++
  33 hide_output make -j10
  34 hide_output make install
  35 ln -s gcc /rustroot/bin/cc
  36
  37 cd ..
  38 rm -rf gcc-build
  39 rm -rf gcc-$GCC
  40 yum erase -y gcc gcc-c++ binutils