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-rw-r--r--lib/getopt.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/lib/getopt.c b/lib/getopt.c
index 71799c9b6d..a33d196015 100644
--- a/lib/getopt.c
+++ b/lib/getopt.c
@@ -206,11 +206,10 @@ static char *posixly_correct;
whose names are inconsistent. */
#ifndef getenv
-extern char *getenv();
+extern char *getenv(const char *);
#endif
-static char *my_index(str, chr) const char *str;
-int chr;
+static char *my_index(const char *str, int chr)
{
while (*str) {
if (*str == chr)