0.3.0: converge relibc to upstream 0.6.0 + Red Bear patches

tests/stdlib/qsort.c

@@ -0,0 +1,33 @@
+#include <stdio.h>
+#include <stddef.h>
+#include <stdlib.h>
+
+#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
+
+int values[] = { 23, 16, 8, 4, 42, 15 };
+
+int cmpfunc (const void * a_ptr, const void * b_ptr) {
+    int a = *(const int *)a_ptr;
+    int b = *(const int *)b_ptr;
+    return a - b;
+}
+
+int main () {
+    size_t i;
+
+    printf("Before: ");
+    for(i = 0; i < ARRAY_SIZE(values); i++) {
+        printf("%d ", values[i]);
+    }
+    printf("\n");
+
+    qsort(values, ARRAY_SIZE(values), sizeof(int), cmpfunc);
+
+    printf("After: ");
+    for(i = 0; i < ARRAY_SIZE(values); i++) {
+        printf("%d ", values[i]);
+    }
+    printf("\n");
+
+    return 0;
+}