From f8a0bbff1bb98eee95658fa81e276e9630a67468 Mon Sep 17 00:00:00 2001
From: Guenter Obiltschnig <guenter.obiltschnig@appinf.com>
Date: Sat, 11 Feb 2017 12:03:37 +0100
Subject: [PATCH] fixed GH #1581: Cannot find 'pcre.h' when using
 POCO_UNBUNDLED, a non-system PCRE, and CMake

Index: Foundation/include/Poco/RegularExpression.h
--- Foundation/include/Poco/RegularExpression.h.orig
+++ Foundation/include/Poco/RegularExpression.h
@@ -47,18 +47,6 @@
 #include <vector>
 
 
-//
-// Copy these definitions from pcre.h
-// to avoid pulling in the entire header file
-//
-extern "C"
-{
-	struct real_pcre;
-	typedef struct real_pcre pcre;
-	struct pcre_extra;
-}
-
-
 namespace Poco {
 
 
@@ -229,8 +217,10 @@ class Foundation_API RegularExpression (protected)
 	std::string::size_type substOne(std::string& subject, std::string::size_type offset, const std::string& replacement, int options) const;
 
 private:
-	pcre*       _pcre;
-	pcre_extra* _extra;
+	// Note: to avoid a dependency on the pcre.h header the following are
+	// declared as void* and casted to the correct type in the implementation file.
+	void* _pcre;  // Actual type is pcre*
+	void* _extra; // Actual type is struct pcre_extra*
 	
 	static const int OVEC_SIZE;