configure: Don't try to detect clang by $CC
authorAnton Mitrofanov <BugMaster@narod.ru>
Mon, 22 May 2017 20:59:32 +0000 (23:59 +0300)
committerHenrik Gramner <henrik@gramner.com>
Tue, 23 May 2017 14:57:45 +0000 (16:57 +0200)
commitf1ac7122645bbeb56e7a4401f71a7055cb2431c4
treed68e1faf5c6f0dcc5df2e2e7a4d9154b23cb9a75
parentb4d811df4fd7dbb9220fe2c8f2a2c2a6ba2bbc87
configure: Don't try to detect clang by $CC

Only check if option -Werror=unknown-warning-option is supported before adding it
configure