net-libs/nDPI: fixes problem with libcache.h

This particular file is later used in building net-analyzer/ntopng,
but it's placed in a third-party folder in nDPI package.
This commit changes this library location.

Package-Manager: Portage-2.3.20, Repoman-2.3.6

net-libs/nDPI/files/nDPI-2.2-libcache-include.patch

@@ -0,0 +1,32 @@
+--- src/include/Makefile.am.orig	2018-01-22 21:24:17.802100061 +0100
++++ src/include/Makefile.am	2018-01-22 21:24:30.080100801 +0100
+@@ -7,4 +7,5 @@
+ 		ndpi_protocol_ids.h \
+ 		ndpi_protocols.h \
+ 		ndpi_win32.h \
+-		ndpi_includes.h
++		ndpi_includes.h \
++		libcache.h
+--- src/include/ndpi_typedefs.h.orig	2018-01-22 21:27:35.994112009 +0100
++++ src/include/ndpi_typedefs.h	2018-01-22 21:27:47.463112701 +0100
+@@ -25,7 +25,7 @@
+ #define __NDPI_TYPEDEFS_H__
+
+ #include "ndpi_define.h"
+-#include "../lib/third_party/include/libcache.h"
++#include "libcache.h"
+
+ #define BT_ANNOUNCE
+ #define SNAP_EXT
+--- src/lib/Makefile.am.orig	2018-01-22 21:34:57.055138600 +0100
++++ src/lib/Makefile.am	2018-01-22 21:35:10.431139406 +0100
+@@ -12,7 +12,8 @@
+ 			     ../include/ndpi_includes.h \
+ 			     ../include/ndpi_protocol_ids.h \
+ 			     ../include/ndpi_protocols.h \
+-			     ../include/ndpi_typedefs.h
++			     ../include/ndpi_typedefs.h \
++			     ../include/libcache.h
+
+ libndpi_la_SOURCES = ndpi_content_match.c.inc \
+ 		     ndpi_main.c \

net-libs/nDPI/nDPI-2.2.ebuild

@@ -20,6 +20,9 @@ RDEPEND="${DEPEND}"
 src_prepare() {
 	sed -e "s/@NDPI_MAJOR@/$(get_version_component_range 1)/g;s/@NDPI_MINOR@/$(get_version_component_range 2)/g;s/@NDPI_PATCH@/$(get_version_component_range 3)/g;s/@NDPI_VERSION_SHORT@/${PV}/g" < "${S}/configure.seed" > "${S}/configure.ac" || die
 
+	mv "${S}/src/lib/third_party/include/libcache.h" "${S}/src/include"
+	epatch "${FILESDIR}/${P}-libcache-include.patch"
+
 	default
 	eautoreconf
 }