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-rw-r--r--coreutils/sum.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/coreutils/sum.c b/coreutils/sum.c
index a75dd32..65478b0 100644
--- a/coreutils/sum.c
+++ b/coreutils/sum.c
@@ -74,7 +74,7 @@ static unsigned sum_file(const char *file, const unsigned type)
#undef buf
}
-int sum_main(int argc, char **argv);
+int sum_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int sum_main(int argc, char **argv)
{
unsigned n;