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-rw-r--r--src/diff3.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/diff3.c b/src/diff3.c
index 343c055..3f51fb9 100644
--- a/src/diff3.c
+++ b/src/diff3.c
@@ -1045,7 +1045,7 @@ process_diff (char const *filea,
/* Skip tabs and spaces, and return the first character after them. */
-static char *
+static char * _GL_ATTRIBUTE_PURE
skipwhite (char *s)
{
while (*s == ' ' || *s == '\t')