Mention that strcasestr doesn't exist on AIX

Issue: #325

diff --git a/strcasestr.c b/strcasestr.c
index a93b6af22a763f9a608190a32cc018a91e39cdc9..2f51ab8ee2bfc836fbc9bf65e08be68ba0afcae1 100644 (file)
--- a/strcasestr.c
+++ b/strcasestr.c
@@ -7,6 +7,7 @@
 #include <stdlib.h>
 #include <ctype.h>
 
+/* IBM AIX 7.1 still misses strcasestr */
 char *strcasestr(const char *s1, const char *s2)
 {
         register const char *s = s1;