[FFmpeg-cvslog] configure: Check for -Werror parameters on clang

[Martin Storsjö]

ffmpeg | branch: release/0.10 | Martin Storsjö <martin at martin.st> | Tue Nov 13 19:01:51 2012 +0200| [c98d164a6a2c3d93bfb10d44c946bc3ed56f14e7] | committer: Luca Barbato

configure: Check for -Werror parameters on clang

Signed-off-by: Martin Storsjö <martin at martin.st>
(cherry picked from commit 9eded0fe412e610ee8944681d5c554b723463e96)
Signed-off-by: Luca Barbato <lu_zero at gentoo.org>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c98d164a6a2c3d93bfb10d44c946bc3ed56f14e7
---

 configure |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/configure b/configure
index 13066e2..e12b88d 100755
--- a/configure
+++ b/configure
@@ -3141,6 +3141,8 @@ elif enabled llvm_gcc; then
 elif enabled clang; then
     check_cflags -mllvm -stack-alignment=16
     check_cflags -Qunused-arguments
+    check_cflags -Werror=implicit-function-declaration
+    check_cflags -Werror=missing-prototypes
 elif enabled armcc; then
     # 2523: use of inline assembler is deprecated
     add_cflags -W${armcc_opt},--diag_suppress=2523