[FFmpeg-cvslog] configure: Silence lld-link when getting the version number

[Martin Storsjö]

ffmpeg | branch: master | Martin Storsjö <martin at martin.st> | Thu Nov  3 14:14:12 2016 +0200| [d1ef1b9eaa45043ea5df5a004fb37243e05da61d] | committer: Martin Storsjö

configure: Silence lld-link when getting the version number

In recent lld-link versions, this command prints the version to
stdout, but also prints an error to stderr:

$ lld-link -flavor gnu --version
LLD 4.0.0 (trunk 285641)
lld-link: error: no input files
lld-link: error: target emulation unknown: -m or at least one .o file required

Signed-off-by: Martin Storsjö <martin at martin.st>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d1ef1b9eaa45043ea5df5a004fb37243e05da61d
---

 configure | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure b/configure
index 9264bb5..23be425 100755
--- a/configure
+++ b/configure
@@ -3291,7 +3291,7 @@ probe_cc(){
         _type=lld-link
         # The link.exe mode doesn't have a switch for getting the version,
         # but we can force it back to gnu mode and get the version from there.
-        _ident=$($_cc -flavor gnu --version)
+        _ident=$($_cc -flavor gnu --version 2>/dev/null)
         _ld_o='-out:$@'
         _flags_filter=msvc_flags
         _ld_lib='lib%.a'