Ben Gamari authored 7 years ago and Ben Gamari committed 7 years ago

It seems that some Apple LLVM wrappers emit multiple messages containing
the string "version", which we previously used to find the version
number.  For instance,

    Configured with: --prefix=/Applications/Xcode.app/Contents/...
    Apple LLVM version 9.0.0 (clang-900.0.37)
    Target: x86_64-apple-darwin16.7.0
    Thread model: posix
    InstalledDir: /Applications/Xcode.app/Contents/Developer/...
    Found CUDA installation: /usr/local/cuda, version 8.0

We now take care to only look at the first occurrence of this string.

New `sed` command due to @merijn.

Test Plan: Validate on all the compilers

Reviewers: austin, hvr

Subscribers: rwbarton, thomie, merijn, erikd

Differential Revision: https://phabricator.haskell.org/D4069