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