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authorEric Andersen <andersen@codepoet.org>2001-01-11 11:42:17 +0000
committerEric Andersen <andersen@codepoet.org>2001-01-11 11:42:17 +0000
commitae97a89e1a1a9833080dccc81f6cd26784e1b964 (patch)
tree6ff1ddc7e3980591c7fd0bbd5d9b8ac82da12886 /libc/unistd/getopt.c
parentabdc3e4d06db2b9d93c509774fc7c4fde918ec8e (diff)
A large update from Manuel Novoa III <mnovoa3@bellsouth.net>.
Diffstat (limited to 'libc/unistd/getopt.c')
-rw-r--r--libc/unistd/getopt.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/libc/unistd/getopt.c b/libc/unistd/getopt.c
index 83a9ad69c..a850d9bde 100644
--- a/libc/unistd/getopt.c
+++ b/libc/unistd/getopt.c
@@ -13,13 +13,18 @@
* and ommision of whitespace between option and arg.
*/
+/*
+ * Modified by Manuel Novoa III on 1/5/01 to use weak symbols.
+ * Programs needing long options will link gnu_getopt instead.
+ */
+
#include <stdio.h>
#include <string.h>
-int opterr = 1; /* error => print message */
-int optind = 1; /* next argv[] index */
-int optopt = 1; /* Set for unknown arguments */
-char *optarg = NULL; /* option parameter if any */
+int opterr __attribute__ ((__weak__)) = 1; /* error => print message */
+int optind __attribute__ ((__weak__)) = 1; /* next argv[] index */
+int optopt __attribute__ ((__weak__)) = 1; /* Set for unknown arguments */
+char *optarg __attribute__ ((__weak__)) = NULL; /* option parameter if any */
static int Err(name, mess, c) /* returns '?' */
char *name; /* program name argv[0] */
@@ -34,6 +39,9 @@ int c; /* defective option letter */
return '?'; /* erroneous-option marker */
}
+extern int getopt (int argc, char *const *argv, const char *optstring)
+ __attribute__ ((__weak__));
+
int getopt (int argc, char *const *argv, const char *optstring)
{
static int sp = 1; /* position within argument */