remove libxml2 as lib dependency

LibXml2 is not needed to compile the gstreamer backend for Phonon

multimedia/phonon-backend/gstreamer/Makefile

@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.22 2018/10/19 20:53:27 rsadowski Exp $
+# $OpenBSD: Makefile,v 1.23 2019/03/03 17:02:24 rsadowski Exp $
 
 COMMENT-main =	GStreamer-based Phonon backend
 COMMENT-icons =	GStreamer-based Phonon backend icons
@@ -12,6 +12,7 @@ MASTER_SITES =		https://download.kde.org/stable/phonon/phonon-backend-gstreamer/
 
 FULLPKGNAME-main =	${PKGNAME}
 FULLPKGPATH-main =	${PKGPATH},${FLAVOR},-main
+REVISION-main =		0
 
 # deconflict Qt4 and Qt5 versions by extracting common data
 MULTI_PACKAGES =	-main -icons
@@ -27,7 +28,6 @@ RUN_DEPENDS-main =	multimedia/gstreamer1/plugins-good \
 
 LIB_DEPENDS-icons =
 LIB_DEPENDS-main =	${LIB_DEPENDS} \
-			textproc/libxml \
 			multimedia/gstreamer1/core \
 			multimedia/gstreamer1/plugins-base
 

multimedia/phonon-backend/gstreamer/patches/patch-CMakeLists_txt

@@ -0,0 +1,17 @@
+$OpenBSD: patch-CMakeLists_txt,v 1.1 2019/03/03 17:02:25 rsadowski Exp $
+
+LibXml2 is not needed to compile the gstreamer backend for Phonon
+
+Index: CMakeLists.txt
+--- CMakeLists.txt.orig
++++ CMakeLists.txt
+@@ -50,9 +50,6 @@ macro_log_feature(GLIB2_FOUND "GLib2" "GLib 2 is requi
+ 
+ find_package(GObject REQUIRED)
+ 
+-find_package(LibXml2 REQUIRED)
+-macro_log_feature(LIBXML2_FOUND "LibXml2" "LibXml2 is required to compile the gstreamer backend for Phonon" "http://xmlsoft.org/downloads.html" TRUE)
+-
+ add_subdirectory(gstreamer)
+ 
+ macro_display_feature_log()

multimedia/phonon-backend/gstreamer/patches/patch-gstreamer_CMakeLists_txt

@@ -0,0 +1,15 @@
+$OpenBSD: patch-gstreamer_CMakeLists_txt,v 1.5 2019/03/03 17:02:25 rsadowski Exp $
+
+LibXml2 is not needed to compile the gstreamer backend for Phonon
+
+Index: gstreamer/CMakeLists.txt
+--- gstreamer/CMakeLists.txt.orig
++++ gstreamer/CMakeLists.txt
+@@ -20,7 +20,6 @@ include_directories(
+       ${GSTREAMER_PLUGIN_AUDIO_INCLUDE_DIR}
+       ${GSTREAMER_PLUGIN_PBUTILS_INCLUDE_DIR}
+       ${GLIB2_INCLUDE_DIR}
+-      ${LIBXML2_INCLUDE_DIR}
+       ${X11_X11_INCLUDE_PATH})
+ 
+ if(${PHONON_VERSION} VERSION_GREATER "4.6.49") # Pre-release 4.7 starts at 4.6.50