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-rw-r--r--diff.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/diff.c b/diff.c
index db4bd557b..2b89b1600 100644
--- a/diff.c
+++ b/diff.c
@@ -2302,6 +2302,10 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
options->detect_rename = 0;
else if (!strcmp(arg, "--relative"))
DIFF_OPT_SET(options, RELATIVE_NAME);
+ else if (!prefixcmp(arg, "--relative=")) {
+ DIFF_OPT_SET(options, RELATIVE_NAME);
+ options->prefix = arg + 11;
+ }
/* xdiff options */
else if (!strcmp(arg, "-w") || !strcmp(arg, "--ignore-all-space"))