pcre_internal.h includes the relevant definitions that configure would
make.

SUPPORT_UCP is only used for UTF-8 locales, so only built on Unix-alikes.

diff -u /home/ripley/src/pcre-7.4/pcre_internal.h ./pcre_internal.h
--- pcre_internal.h   2007-09-13 10:22:27.000000000 +0100
+++ ./pcre_internal.h   2007-10-03 14:48:02.000000000 +0100
@@ -67,6 +67,24 @@
 #endif


+/* Get the definitions provided by running "configure" */
+
+#include <config.h>
+#define HAVE_MEMMOVE 1
+#ifndef NEWLINE
+#define NEWLINE '\n'
+#define LINK_SIZE 2
+#define MATCH_LIMIT 10000000
+#define MATCH_LIMIT_RECURSION MATCH_LIMIT
+#define MAX_DUPLENGTH 30000
+#define MAX_NAME_COUNT 10000
+#define MAX_NAME_SIZE 32
+#define POSIX_MALLOC_THRESHOLD 10
+#ifdef SUPPORT_UTF8
+#define SUPPORT_UCP
+#endif
+#endif
+
 /* Standard C headers plus the external interface definition. The only time
 setjmp and stdarg are used is when NO_RECURSE is set. */