tree 7669891463a02315532a92a34bd6322e74e5e991
parent c8cb6bcdf009e94c12c6e256b8e24a9bc5fdaf05
author Rich Felker <dalias@aerifal.cx> 1351191132 -0400
committer Rich Felker <dalias@aerifal.cx> 1351191132 -0400

configure: test not just compiling but linking with -march/-mtune

pcc wrongly passes any option beginning with -m to the linker, and
will break at link time if these options were added to CFLAGS. testing
linking lets us catch this at configure time and skip them.