diff -up poco-1.6.1-all/Foundation/include/Poco/RegularExpression.h.pcrefix poco-1.6.1-all/Foundation/include/Poco/RegularExpression.h
--- poco-1.6.1-all/Foundation/include/Poco/RegularExpression.h.pcrefix	2015-08-04 01:20:55.000000000 -0400
+++ poco-1.6.1-all/Foundation/include/Poco/RegularExpression.h	2016-01-29 23:29:45.618056950 -0500
@@ -27,6 +27,9 @@
 #include <vector>
 
 
+#ifdef POCO_UNBUNDLED
+#include <pcre.h>
+#else
 //
 // Copy these definitions from pcre.h
 // to avoid pulling in the entire header file
@@ -37,6 +40,7 @@ extern "C"
 	typedef struct real_pcre8_or_16 pcre;
 	struct pcre_extra;
 }
+#endif
 
 
 namespace Poco {