Index: src/of_asprintf.m
==================================================================
--- src/of_asprintf.m
+++ src/of_asprintf.m
@@ -24,10 +24,12 @@
 #include <wchar.h>
 
 #import "OFString.h"
 #import "OFAutoreleasePool.h"
 #import "asprintf.h"
+
+#import "macros.h"
 
 #define MAX_SUBFORMAT_LEN 64
 
 struct context {
 	const char *format;
@@ -234,10 +236,19 @@
 			ctx->i += 2;
 			ctx->lengthModifier = LENGTH_MODIFIER_LL;
 		} else
 			ctx->i--;
 
+		break;
+#endif
+#ifdef OF_IOS
+	case 'q': /* iOS uses this for PRI?64 */
+		if (!appendSubformat(ctx, ctx->format + ctx->i, 1))
+			return false;
+
+		ctx->lengthModifier = LENGTH_MODIFIER_LL;
+
 		break;
 #endif
 	default:
 		ctx->i--;