Remove optarg, opterr, and optind definitions to quell -Wshadow warnings

They are by POSIX definition made available with unistd.h

Reported by: clang 3.8.0, gcc 5.3.0
Signed-off-by: Ngie Cooper <yanegomi@gmail.com>

diff --git a/drill/configure.ac b/drill/configure.ac
index b7fe2aee07a8e8ee85bb6047886bfb1cb33c478d..a11d131fffdf59c684327809549e48104c3b7f5e 100644 (file)
--- a/drill/configure.ac
+++ b/drill/configure.ac
@@ -258,9 +258,6 @@ AH_BOTTOM([
 #include <ws2tcpip.h>
 #endif
 
-extern char *optarg;
-extern int optind, opterr;
-
 #ifndef EXIT_FAILURE
 #define EXIT_FAILURE  1
 #endif