+#include <stdlib.h>
+#include <string.h>
+
+/* Compare S1 (with size S1SIZE) and S2 (with length S2SIZE) according
+ to the LC_COLLATE locale. S1 and S2 are both blocks of memory with
+ nonzero sizes, and the last byte in each block must be a null byte.
+ Set errno to an error number if there is an error, and to zero
+ otherwise. */
+static inline int
+strcoll_loop (char const *s1, size_t s1size, char const *s2, size_t s2size)
+{
+ int diff;
+
+ while (! (errno = 0, (diff = strcoll (s1, s2)) || errno))
+ {
+ /* strcoll found no difference, but perhaps it was fooled by NUL
+ characters in the data. Work around this problem by advancing
+ past the NUL chars. */
+ size_t size1 = strlen (s1) + 1;
+ size_t size2 = strlen (s2) + 1;
+ s1 += size1;
+ s2 += size2;
+ s1size -= size1;
+ s2size -= size2;