libs: replace libepoxy-stub with real libepoxy

The libepoxy-stub provided a hardcoded stub that returned 0/NULL for
every epoxy_egl_extension_supported, epoxy_has_gl_extension, and
epoxy_gl_version call, plus a fake epoxyConfig.cmake. KWin and Qt6
Wayland code paths were never able to detect GL/EGL extensions or
negotiate GL versions, which broke the KWin rendering pipeline silently.

Replace it with the real libepoxy (anholt/libepoxy fork) — the full
upstream C source, built against Mesa EGL/GLES2, that registers
epoxy::epoxy in CMake, provides libepoxy.pc, and produces the real
epoxy_gl_version / epoxy_has_gl_extension / epoxy_egl_*_supported
runtime values. Recipe bumped to 0.2.3 with v6.0 2026 description.

Also: protected-recipes.toml [libs] no longer lists the stub.

local/recipes/libs/libepoxy-stub/recipe.toml

@@ -1,66 +0,0 @@
-#TODO: libepoxy stub — provides epoxy::epoxy cmake target for KWin linking
-[source]
-path = "source"
-
-[build]
-template = "custom"
-script = """
-DYNAMIC_INIT
-
-mkdir -p "${COOKBOOK_STAGE}/usr/include/epoxy"
-mkdir -p "${COOKBOOK_STAGE}/usr/lib/cmake/epoxy"
-
-cat > "${COOKBOOK_STAGE}/usr/include/epoxy/egl.h" << 'EOF'
-#pragma once
-#include <EGL/egl.h>
-#include <EGL/eglext.h>
-static inline int epoxy_egl_extension_supported(const char *ext) { (void)ext; return 0; }
-EOF
-
-cat > "${COOKBOOK_STAGE}/usr/include/epoxy/gl.h" << 'EOF'
-#pragma once
-#include <GLES2/gl2.h>
-#include <GLES2/gl2ext.h>
-static inline int epoxy_gl_version(void) { return 20; }
-static inline int epoxy_has_gl_extension(const char *ext) { (void)ext; return 0; }
-EOF
-
-cat > "${COOKBOOK_STAGE}/usr/include/epoxy/glx.h" << 'EOF'
-#pragma once
-EOF
-
-cat > "${COOKBOOK_STAGE}/usr/include/epoxy/gl_generated.h" << 'EOF'
-#pragma once
-EOF
-
-cat > "${COOKBOOK_STAGE}/usr/include/epoxy/egl_generated.h" << 'EOF'
-#pragma once
-EOF
-
-cat > stub_epoxy.c << 'CEOF'
-int epoxy_egl_extensions_string(void) { return 0; }
-int epoxy_has_egl_extension(const char *ext) { (void)ext; return 0; }
-int epoxy_gl_version(void) { return 20; }
-int epoxy_has_gl_extension(const char *ext) { (void)ext; return 0; }
-int epoxy_glx_version(void) { return 0; }
-int epoxy_has_glx_extension(const char *ext) { (void)ext; return 0; }
-CEOF
-
-x86_64-unknown-redox-gcc -shared -fPIC -o "${COOKBOOK_STAGE}/usr/lib/libepoxy.so" stub_epoxy.c
-
-cat > "${COOKBOOK_STAGE}/usr/lib/cmake/epoxy/epoxyConfig.cmake" << 'EOF'
-if(NOT TARGET epoxy::epoxy)
-    add_library(epoxy::epoxy SHARED IMPORTED)
-    set_target_properties(epoxy::epoxy PROPERTIES
-        IMPORTED_LOCATION "${CMAKE_CURRENT_LIST_DIR}/../../../lib/libepoxy.so"
-        INTERFACE_INCLUDE_DIRECTORIES "${CMAKE_CURRENT_LIST_DIR}/../../../include"
-    )
-endif()
-set(epoxy_FOUND TRUE)
-EOF
-
-cat > "${COOKBOOK_STAGE}/usr/lib/cmake/epoxy/epoxyConfigVersion.cmake" << 'EOF'
-set(PACKAGE_VERSION "1.5.10")
-set(PACKAGE_VERSION_COMPATIBLE TRUE)
-EOF
-"""

local/recipes/libs/libepoxy/recipe.toml

@@ -16,3 +16,7 @@ cookbook_meson \
     -Dx11=false \
     -Degl=yes
 """
+
+[package]
+version = "0.2.3"
+description = "libepoxy — OpenGL/GLES/EGL function pointer manager. Real upstream source (v6.0 2026 fork of anholt/libepoxy) compiled against Mesa EGL/GLES2 for KWin and Qt6 Wayland on Redox. Replaces the prior libepoxy-stub that returned hardcoded zeros."

recipes/libs/libepoxy-stub

@@ -1 +0,0 @@
-../../local/recipes/libs/libepoxy-stub