[GtkSourceView] Add builder (#347)

* [GtkSourceView] Add builder

* [GtkSourceView] Don't build tests

We don't want them and they are also broken when building for Windows

Author: giordano

G/GtkSourceView/build_tarballs.jl

@@ -0,0 +1,50 @@
+# Note that this script can accept some limited command-line arguments, run
+# `julia build_tarballs.jl --help` to see a usage message.
+using BinaryBuilder
+
+name = "GtkSourceView"
+version = v"4.4.0"
+
+# Collection of sources required to build GtkSourceView
+sources = [
+    "https://download.gnome.org/sources/gtksourceview/4.4/gtksourceview-$(version).tar.xz" =>
+    "9ddb914aef70a29a66acd93b4f762d5681202e44094d2d6370e51c9e389e689a",
+    "./bundled",
+]
+
+# Bash recipe for building across all platforms
+script = raw"""
+cd $WORKSPACE/srcdir/gtksourceview-*/
+
+# We need to run native `xmllint` and `glib-compile-resources`
+apk add libxml2-utils glib-dev
+
+# Don't build broken tests
+atomic_patch -p1 ../patches/meson_build_no_tests.patch
+
+mkdir build && cd build
+meson .. \
+    -Dgir=false \
+    --cross-file="${MESON_TARGET_TOOLCHAIN}"
+ninja -j${nproc}
+ninja install
+"""
+
+# These are the platforms we will build for by default, unless further
+# platforms are passed in on the command line
+platforms = supported_platforms()
+
+# The products that we will ensure are always built
+products = [
+    LibraryProduct("libgtksourceview-4", :libgtksourceview),
+]
+
+# Dependencies that must be installed before this package can be built
+dependencies = [
+    "Glib_jll",
+    "GTK3_jll",
+    "FriBidi_jll",
+]
+
+# Build the tarballs, and possibly a `build.jl` as well.
+build_tarballs(ARGS, name, version, sources, script, platforms, products, dependencies)

G/GtkSourceView/bundled/patches/meson_build_no_tests.patch

@@ -0,0 +1,13 @@
+--- a/meson.build
++++ b/meson.build
+@@ -265,8 +265,8 @@
+ subdir('data')
+ subdir('docs')
+ subdir('po')
+-subdir('tests')
+-subdir('testsuite')
++# subdir('tests')
++# subdir('testsuite')
+ 
+ summary = [
+   '',