1 files changed, 2 insertions, 0 deletions
diff --git a/imap.c b/imap.c
index 317a3394..315f5407 100644
--- a/imap.c
+++ b/imap.c
@@ -26,7 +26,9 @@
 #include <krb.h>
 #endif /* KERBEROS_V4 */
 
+#ifndef strstr		/* glibc-2.1 declares this as a macro */
 extern char *strstr();	/* needed on sysV68 R3V7.1. */
+#endif /* strstr */
 
 /* imap_version values */
 #define IMAP2		-1	/* IMAP2 or IMAP2BIS, RFC1176 */