testRangeComparison() in test/test.cpp assumes that strncmp() used by uriCompareRangeA() will always return -1/0/1 values.

So it fails on AArch64:

UriSuite: 50/52
Comparing to yields -64, expected -1.
Comparing to yields 64, expected 1.
UriSuite: 51/52

Why? Simple. C standard says that strncmp() has to return <0/0/>0 values.

Upstream bug: https://sourceforge.net/p/uriparser/bugs/24/

Index: uriparser-0.8.1/src/UriCommon.c
===================================================================
--- uriparser-0.8.1.orig/src/UriCommon.c
+++ uriparser-0.8.1/src/UriCommon.c
@@ -98,7 +98,15 @@ int URI_FUNC(CompareRange)(
 		return -1;
 	}
 
-	return URI_STRNCMP(a->first, b->first, (a->afterLast - a->first));
+	diff = URI_STRNCMP(a->first, b->first, (a->afterLast - a->first));
+
+	if (diff > 0) {
+		return 1;
+	} else if (diff < 0) {
+		return -1;
+	}
+
+	return diff;
 }