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-rw-r--r--compat/getprogname.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/compat/getprogname.c b/compat/getprogname.c
index 80a496da..50afbace 100644
--- a/compat/getprogname.c
+++ b/compat/getprogname.c
@@ -16,14 +16,14 @@
#include <sys/types.h>
+#include <errno.h>
+
#include "compat.h"
#if defined(HAVE_PROGRAM_INVOCATION_SHORT_NAME)
const char *
getprogname(void)
{
- extern char *program_invocation_short_name;
-
return (program_invocation_short_name);
}
#elif defined(HAVE___PROGNAME)