Add various packages and patches for build system improvements

- Introduced valgrind with a patch to respect flags and updated its configuration.
- Added Vulkan ICD loader with CMake build configuration.
- Implemented Waf build system with a custom build script and configuration.
- Included Wayland protocols with Meson build system.
- Added xcb-util-keysyms with autotools configuration.
- Introduced Yasm with multiple patches for compatibility and improvements.
- Added Yelp tools and XSL with Meson build configurations and necessary patches for POSIX compliance.

extra/glib2/0001-glib-compile-schemas-Remove-noisy-deprecation-warnin.patch

@@ -0,0 +1,40 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Jan Alexander Steffens (heftig)" <jan.steffens@gmail.com>
+Date: Fri, 7 Jan 2022 18:59:10 +0000
+Subject: [PATCH] glib-compile-schemas: Remove noisy deprecation warnings
+
+While the warnings are useful for developers, Arch Linux users also see
+them when glib-compile-schemas gets run after upgrades, where they just
+add noise.
+
+The alternative to this patch would be redirecting the compiler's stderr
+to /dev/null, but that might also suppress more useful errors or
+warnings we want users to see.
+---
+ gio/glib-compile-schemas.c | 13 -------------
+ 1 file changed, 13 deletions(-)
+
+diff --git a/gio/glib-compile-schemas.c b/gio/glib-compile-schemas.c
+index 81e675f53e8b..1a10a8d098c5 100644
+--- a/gio/glib-compile-schemas.c
++++ b/gio/glib-compile-schemas.c
+@@ -1232,19 +1232,6 @@ parse_state_start_schema (ParseState  *state,
+       return;
+     }
+ 
+-  if (path && (g_str_has_prefix (path, "/apps/") ||
+-               g_str_has_prefix (path, "/desktop/") ||
+-               g_str_has_prefix (path, "/system/")))
+-    {
+-      gchar *message = NULL;
+-      message = g_strdup_printf (_("Warning: Schema “%s” has path “%s”.  "
+-                                   "Paths starting with "
+-                                   "“/apps/”, “/desktop/” or “/system/” are deprecated."),
+-                                 id, path);
+-      g_printerr ("%s\n", message);
+-      g_free (message);
+-    }
+-
+   state->schema_state = schema_state_new (path, gettext_domain,
+                                           extends, extends_name, list_of);
+ 

extra/glib2/0002-gdesktopappinfo-Add-more-known-terminals.patch

@@ -0,0 +1,51 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Fabian Bornschein <fabiscafe@mailbox.org>
+Date: Wed, 19 Feb 2025 09:05:01 +0100
+Subject: [PATCH] gdesktopappinfo: Add more known terminals
+
+---
+ gio/gdesktopappinfo.c        | 3 +++
+ gio/tests/desktop-app-info.c | 9 +++++++++
+ 2 files changed, 12 insertions(+)
+
+diff --git a/gio/gdesktopappinfo.c b/gio/gdesktopappinfo.c
+index 1e5a752ac6d9..4569e272b1cc 100644
+--- a/gio/gdesktopappinfo.c
++++ b/gio/gdesktopappinfo.c
+@@ -2720,6 +2720,9 @@ prepend_terminal_to_vector (int          *argc,
+     const char *exec_arg;
+   } known_terminals[] = {
+     { "xdg-terminal-exec", NULL },
++    { "ghostty", "-e" },
++    { "ptyxis", "--" },
++    { "app.devsuite.Ptyxis", "--" },
+     { "kgx", "-e" },
+     { "gnome-terminal", "--" },
+     { "mate-terminal", "-x" },
+diff --git a/gio/tests/desktop-app-info.c b/gio/tests/desktop-app-info.c
+index aa705f9a4c0e..ae3272c56040 100644
+--- a/gio/tests/desktop-app-info.c
++++ b/gio/tests/desktop-app-info.c
+@@ -1418,6 +1418,12 @@ get_terminal_divider (const char *terminal_name)
+ {
+   if (g_str_equal (terminal_name, "xdg-terminal-exec"))
+     return NULL;
++  if (g_str_equal (terminal_name, "ghostty"))
++    return "-e";
++  if (g_str_equal (terminal_name, "ptyxis"))
++    return "--";
++  if (g_str_equal (terminal_name, "app.devsuite.Ptyxis"))
++    return "--";
+   if (g_str_equal (terminal_name, "kgx"))
+     return "-e";
+   if (g_str_equal (terminal_name, "gnome-terminal"))
+@@ -1940,6 +1946,9 @@ main (int   argc,
+   guint i;
+   const gchar *supported_terminals[] = {
+     "xdg-terminal-exec",
++    "ghostty",
++    "ptyxis",
++    "app.devsuite.Ptyxis",
+     "kgx",
+     "gnome-terminal",
+     "mate-terminal",

extra/glib2/gio-querymodules.toml

@@ -0,0 +1,11 @@
+[hook]
+name = "gio-querymodules"
+description = "Update the GIO module cache"
+
+[when]
+phase = "post"
+operation = ["install", "update", "remove"]
+paths = ["usr/lib/gio/modules/*.so"]
+
+[exec]
+command = "gio-querymodules /usr/lib/gio/modules"

extra/glib2/glib-compile-schemas.toml

@@ -0,0 +1,14 @@
+[hook]
+name = "glib-compile-schemas"
+description = "Compile GSettings XML schema files"
+
+[when]
+phase = "post"
+operation = ["install", "update", "remove"]
+paths = [
+  "usr/share/glib-2.0/schemas/*.xml",
+  "usr/share/glib-2.0/schemas/*.override",
+]
+
+[exec]
+command = "glib-compile-schemas /usr/share/glib-2.0/schemas"

extra/glib2/glib2.toml

@@ -0,0 +1,68 @@
+[build]
+type = "meson"
+
+[build.flags]
+build_dir = "build"
+configure = [
+    "-Ddtrace=disabled",
+    "-Dglib_debug=disabled",
+    "-Dintrospection=enabled",
+    "-Dman-pages=enabled",
+    "-Dselinux=disabled",
+    "-Dsysprof=disabled",
+    "-Dsystemtap=disabled",
+]
+post_install = [
+    'install -Dt "$DESTDIR/usr/share/depot.d/hooks" -m644 $DEPOT_SPECDIR/gio-querymodules.toml',
+    """install -Dt "$DESTDIR/usr/share/depot.d/hooks" -m644 $DEPOT_SPECDIR/glib-compile-schemas.toml""",
+    'touch "$DESTDIR/usr/lib/gio/modules/.keep"',
+    'python -m compileall -d /usr/share/glib-2.0/codegen "$DESTDIR/usr/share/glib-2.0/codegen"',
+    'python -O -m compileall -d /usr/share/glib-2.0/codegen  "$DESTDIR/usr/share/glib-2.0/codegen"',
+]
+skip_tests = true 
+
+[dependencies]
+build = [
+    "gettext",
+    "meson",
+    "libelf",
+    "shared-mime-info",
+    "python",
+    "python-docutils",
+    "python-packaging",
+    "util-linux",
+    "gobject-introspection",
+]
+runtime = [
+    "sh",
+    "glibc",
+    "libffi",
+    "pcre2",
+    "util-linux",
+    "zlib-ng",
+]
+
+[[manual_sources]]
+files = [
+    "0001-glib-compile-schemas-Remove-noisy-deprecation-warnin.patch",
+    "0002-gdesktopappinfo-Add-more-known-terminals.patch",
+    "gio-querymodules.toml",
+    "glib-compile-schemas.toml"
+]
+
+[package]
+description = "Low-level core library that forms the basis for projects such as GTK and GNOME."
+homepage = "https://gitlab.gnome.org/GNOME/glib"
+license = "LGPL-2.1-or-later"
+name = "glib2"
+version = "2.86.4"
+
+[[source]]
+extract_dir = "$name-$version"
+patches = [
+    "0001-glib-compile-schemas-Remove-noisy-deprecation-warnin.patch",
+    "0002-gdesktopappinfo-Add-more-known-terminals.patch",
+]
+url = "https://download.gnome.org/sources/glib/2.86/glib-$version.tar.xz"
+sha256 = "md5:f2233a826c952aaae42b4a61611a06a4" 
+post_extract = [ "