• Ben Gamari's avatar
    configure: Fix ar probed flags · 66d17995
    Ben Gamari authored
    FP_PROG_AR_ARGS appears to be probing for what flags to use to build an
    archive with an index. However, none of the flags that it probed
    previously were valid as they all started with `c`, which isn't a mode
    character. This went unnoticed until someone attempted to use LLVM ar
    since we have a special case for gnu ar.
    
    Additionally, we work around a bug in llvm-ar 5.0 where ar will exit
    with code 0 even if it fails to parse the command line. Silliness.
    
    I believe these should rather all be mode `q` however I'll need to test
    this on a few platforms to be certain.
    
    Test Plan: Validate on OS X, BSD, and Linux with binutils and llvm ar
    
    Reviewers: hvr
    
    Subscribers: rwbarton, thomie, erikd
    
    Differential Revision: https://phabricator.haskell.org/D4214
    66d17995
aclocal.m4 73.7 KB