ports: Add gtk3 port

ports/libxml2/build.sh

@@ -0,0 +1,26 @@
+#!/bin/bash ../install.sh
+
+NAME='libxml2'
+VERSION='2.15.1'
+DOWNLOAD_URL="https://gitlab.gnome.org/GNOME/libxml2/-/archive/v$VERSION/libxml2-v$VERSION.tar.gz#0a5ebf8fa131585748d661ae692503483aff39d9b29b6c4b342cd80d422f246c"
+TAR_CONTENT="libxml2-v$VERSION"
+DEPENDENCIES=('zlib' 'libiconv')
+CONFIGURE_OPTIONS=(
+	'-Dprefix=/usr'
+)
+
+configure() {
+	meson setup \
+		--reconfigure \
+		--cross-file "$MESON_CROSS_FILE" \
+		"${CONFIGURE_OPTIONS[@]}" \
+		build || exit 1
+}
+
+build() {
+	meson compile -C build || exit 1
+}
+
+install() {
+	meson install --destdir="$BANAN_SYSROOT" -C build || exit 1
+}

ports/libxml2/patches/0001-disable-tests.patch

@@ -0,0 +1,24 @@
+diff -ruN libxml2-2.15.1/meson.build libxml2-2.15.1-banan_os/meson.build
+--- libxml2-2.15.1/meson.build	2025-10-16 16:23:05.000000000 +0300
++++ libxml2-2.15.1-banan_os/meson.build	2025-11-05 21:14:49.833303459 +0200
+@@ -502,19 +502,7 @@
+ 
+ ## tests
+ 
+-checks = {
+-    'runsuite': [],
+-    'runtest': threads_dep,
+-    'runxmlconf': [],
+-# Disabled for now, see #694
+-#    'testModule': [],
+-    'testapi': [],
+-    'testchar': [],
+-    'testdict': [],
+-    'testlimits': [],
+-    'testparser': [],
+-    'testrecurse': [],
+-}
++checks = {}
+ 
+ foreach check, deps : checks
+     exe = executable(