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-rw-r--r--libavcodec/libxvidff.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/libxvidff.c b/libavcodec/libxvidff.c
index 834e02d..97e0d0c 100644
--- a/libavcodec/libxvidff.c
+++ b/libavcodec/libxvidff.c
@@ -85,7 +85,7 @@ void xvid_correct_framerate(AVCodecContext *avctx);
* *prefix can be a character constant; *filename will be allocated internally.
* @return file descriptor of opened file (or -1 on error)
* and opened file name in **filename. */
-int ff_tempfile(char *prefix, char **filename) {
+int ff_tempfile(const char *prefix, char **filename) {
int fd=-1;
#if !HAVE_MKSTEMP
*filename = tempnam(".", prefix);
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