summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--m4/ffmpeg.m42
1 files changed, 1 insertions, 1 deletions
diff --git a/m4/ffmpeg.m4 b/m4/ffmpeg.m4
index 4ea6301d9..d228de8a0 100644
--- a/m4/ffmpeg.m4
+++ b/m4/ffmpeg.m4
@@ -10,7 +10,7 @@ dnl It looks for ffmpeg, defines FFMPEG_CPPFLAGS and FFMPEG_LIBS.
dnl
AC_DEFUN([AM_PATH_FFMPEG], [
-AC_ARG_WITH(external-ffmpeg, AC_HELP_STRING([--with-external-ffmpeg], [use external ffmpeg library]),
+AC_ARG_WITH(external-ffmpeg, AC_HELP_STRING([--with-external-ffmpeg@<:@=DIR@:>@], [use external ffmpeg library]),
[external_ffmpeg="$withval"],
[external_ffmpeg="no"]
)