audio: un-defer pipewire + wireplumber in redbear-full

Both now build for x86_64-unknown-redox against the ported relibc surface:
- wireplumber recipe: fix meson option types for 0.4.14 (doc feature; tests/
  tools/daemon are booleans, not features) — configure was erroring out.
- pcre2: build the static archive with -fPIC so it links into WirePlumber's
  shared PipeWire modules (via glib); matches expat/icu/libffi. Fixes the
  R_X86_64_32S-in-shared-object link failure.
- config/redbear-full.toml: re-add pipewire + wireplumber to packages[] and
  [files]; drop the TODO(audio) deferral.
- bump relibc submodule pointer to the ported C-runtime surface.

config/redbear-full.toml

@@ -82,10 +82,9 @@ packages = [
     "plasma-framework", "plasma-workspace", "plasma-desktop",
     "kde-cli-tools", "kf6-attica",
     "zbus",
-    # TODO(audio): pipewire + wireplumber deferred — the PipeWire audio stack
-    # needs deeper Redox porting (alloca decl via meson, MAP_LOCKED/mmap flags,
-    # and more Linux-isms). Audio is NOT required for the SDDM login / desktop
-    # session; re-add once the port is complete. "pipewire", "wireplumber",
+    # PipeWire audio stack — ported to Redox via real relibc primitives
+    # (CPU affinity, gettid, statfs, iface ioctls) rather than disabled modules.
+    "pipewire", "wireplumber",
 ]
 
 # Convenience meta-group referencing the entire desktop. Useful as a single
@@ -241,8 +240,8 @@ zbus = {}
 # StatusNotifierWatcher — session-bus system-tray broker. D-Bus activated via
 # redbear-dbus-services (inherited), consistent with redbear-notifications.
 redbear-statusnotifierwatcher = {}
-# pipewire = {}      # deferred — see packages[] TODO(audio)
-# wireplumber = {}   # deferred — see packages[] TODO(audio)
+pipewire = {}
+wireplumber = {}
 
 # AMD GPU display
 amdgpu = {}

local/recipes/libs/wireplumber/recipe.toml

@@ -105,15 +105,15 @@ export LDFLAGS="--sysroot=${COOKBOOK_SYSROOT}"
 # Disable the Linux-specific optional integrations. Keep the core
 # session manager, the C library, and the command-line tools.
 cookbook_meson \\
-    -Ddocs=disabled \\
-    -Dtests=disabled \\
+    -Ddoc=disabled \\
+    -Dtests=false \\
     -Dsystemd=disabled \\
     -Delogind=disabled \\
     -Dsystemd-system-service=false \\
     -Dsystemd-user-service=false \\
     -Dintrospection=disabled \\
-    -Dtools=enabled \\
-    -Ddaemon=enabled \\
+    -Dtools=true \\
+    -Ddaemon=true \\
     -Dmodules=true \\
     -Ddbus-tests=false \\
     -Dsystem-lua=false

recipes/libs/pcre2/recipe.toml

@@ -13,5 +13,11 @@ autotools_recursive_regenerate
 template = "custom"
 script = """
 DYNAMIC_STATIC_INIT
+# Build the static archive with position-independent code so it can be linked
+# into shared objects (e.g. WirePlumber's PipeWire modules pull pcre2 in via
+# glib). Without -fPIC the R_X86_64_32S relocations in libpcre2-8.a are
+# rejected when producing a .so. Matches the expat/icu/libffi recipes.
+export CFLAGS="${CFLAGS} -fPIC"
+export CXXFLAGS="${CXXFLAGS} -fPIC"
 cookbook_configure
 """