Enable UTF and UCP support in PCRE

src/private/pcre_src/config.h

@@ -324,13 +324,13 @@ sure both macros are undefined; an emulation function will then be used. */
 /* #undef SUPPORT_PCREGREP_JIT */
 
 /* Define to any value to enable support for Unicode properties. */
-/* #undef SUPPORT_UCP */
+#define SUPPORT_UCP
 
 /* Define to any value to enable support for the UTF-8/16/32 Unicode encoding.
    This will work even in an EBCDIC environment, but it is incompatible with
    the EBCDIC macro. That is, PCRE can support *either* EBCDIC code *or*
    ASCII/UTF-8/16/32, but not both at once. */
-/* #undef SUPPORT_UTF */
+#define SUPPORT_UTF
 
 /* Define to any value for valgrind support to find invalid memory reads. */
 /* #undef SUPPORT_VALGRIND */

test/misc.nim

@@ -0,0 +1,5 @@
+import unittest, nre
+
+suite "Misc tests":
+  test "unicode":
+    check("".find(re("", "8")).match == "")

test/testall.nim

@@ -6,3 +6,4 @@ import split
 import match
 import replace
 import escape
+import misc