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-rw-r--r--combine-diff.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/combine-diff.c b/combine-diff.c
index d777e92..5cae5fb 100644
--- a/combine-diff.c
+++ b/combine-diff.c
@@ -419,8 +419,10 @@ static void combine_diff(const unsigned char *parent, unsigned int mode,
state.num_parent = num_parent;
state.n = n;
- xdi_diff_outf(&parent_file, result_file, consume_line, &state,
- &xpp, &xecfg);
+ if (xdi_diff_outf(&parent_file, result_file, consume_line, &state,
+ &xpp, &xecfg))
+ die("unable to generate combined diff for %s",
+ sha1_to_hex(parent));
free(parent_file.ptr);
/* Assign line numbers for this parent.