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-rw-r--r--src/3rdparty/autotrace/output.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/3rdparty/autotrace/output.c b/src/3rdparty/autotrace/output.c
index 098bb7e1d..ae44cde15 100644
--- a/src/3rdparty/autotrace/output.c
+++ b/src/3rdparty/autotrace/output.c
@@ -127,7 +127,7 @@ at_spline_writer *at_output_get_handler(gchar * filename)
return at_output_get_handler_by_suffix(ext);
}
-at_spline_writer *at_output_get_handler_by_suffix(gchar * suffix)
+at_spline_writer *at_output_get_handler_by_suffix(const gchar * suffix)
{
at_output_format_entry *format;
gchar *gsuffix;