glibc/glibc-gethnamaddr-gcc5.patch

Index: glibc-2.23-276-gb65b205/resolv/gethnamaddr.c
===================================================================
--- glibc-2.23-276-gb65b205.orig/resolv/gethnamaddr.c
+++ glibc-2.23-276-gb65b205/resolv/gethnamaddr.c
@@ -68,6 +68,7 @@
 #include <errno.h>
 #include <stdlib.h>
 #include <string.h>
+#include <libc-internal.h>
 
 #define	MAXALIASES	35
 #define	MAXADDRS	35
@@ -864,10 +865,19 @@ addrsort (char **ap, int num)
 
 	p = ap;
 	for (i = 0; i < num; i++, p++) {
+	    DIAG_PUSH_NEEDS_COMMENT
+#if __GNUC_PREREQ (5, 0)
+	    /* GCC 5.0 warns about array subscript being above array bounds,
+	       but that's not entirely possible since i is limited to
+	       _res.nsort which is limited to MAXRESOLVSORT. This
+	       is likely PR/59124 which is still not fixed.  */
+	    DIAG_IGNORE_NEEDS_COMMENT (5.0, "-Warray-bounds")
+#endif
 	    for (j = 0 ; (unsigned)j < _res.nsort; j++)
 		if (_res.sort_list[j].addr.s_addr ==
 		    (((struct in_addr *)(*p))->s_addr & _res.sort_list[j].mask))
 			break;
+	    DIAG_POP_NEEDS_COMMENT
 	    aval[i] = j;
 	    if (needsort == 0 && i > 0 && j < aval[i-1])
 		needsort = i;