build, qt: Add libglvnd package to support OpenGL on Linux

See https://gitlab.freedesktop.org/glvnd/libglvnd

depends/packages/libglvnd.mk

@@ -0,0 +1,28 @@
+package := libglvnd
+$(package)_version := 1.4.0
+$(package)_download_path := https://gitlab.freedesktop.org/glvnd/$(package)/-/archive/v$($(package)_version)
+$(package)_file_name := $(package)-v$($(package)_version).tar.bz2
+$(package)_sha256_hash := fdf395391d95f270528dbff6ce2ee54c186753d286ad62e0da5f62c6f67ba915
+
+define $(package)_set_vars
+  $(package)_config_opts := --enable-option-checking --disable-dependency-tracking
+  $(package)_config_opts += --enable-shared --disable-static
+  $(package)_config_opts += --disable-x11 --disable-gles1
+endef
+
+define $(package)_config_cmds
+  ./autogen.sh && \
+  $($(package)_autoconf)
+endef
+
+define $(package)_build_cmds
+  $(MAKE)
+endef
+
+define $(package)_stage_cmds
+  $(MAKE) DESTDIR=$($(package)_staging_dir) install
+endef
+
+define $(package)_postprocess_cmds
+  rm lib/*.la
+endef

depends/packages/packages.mk

@@ -5,7 +5,7 @@ qrencode_android_packages = qrencode
 qrencode_darwin_packages = qrencode
 qrencode_mingw32_packages = qrencode
 
-qt_linux_packages:=qt expat libxcb xcb_proto libXau xproto freetype fontconfig libxkbcommon libxcb_util libxcb_util_render libxcb_util_keysyms libxcb_util_image libxcb_util_wm
+qt_linux_packages:=qt expat libxcb xcb_proto libXau xproto freetype fontconfig libxkbcommon libxcb_util libxcb_util_render libxcb_util_keysyms libxcb_util_image libxcb_util_wm libglvnd
 qt_android_packages=qt
 qt_darwin_packages=qt
 qt_mingw32_packages=qt

depends/packages/qt.mk

@@ -4,7 +4,7 @@ $(package)_download_path=https://download.qt.io/official_releases/qt/5.15/$($(pa
 $(package)_suffix=everywhere-opensource-src-$($(package)_version).tar.xz
 $(package)_file_name=qtbase-$($(package)_suffix)
 $(package)_sha256_hash=26394ec9375d52c1592bd7b689b1619c6b8dbe9b6f91fdd5c355589787f3a0b6
-$(package)_linux_dependencies=freetype fontconfig libxcb libxkbcommon libxcb_util libxcb_util_render libxcb_util_keysyms libxcb_util_image libxcb_util_wm
+$(package)_linux_dependencies=freetype fontconfig libxcb libxkbcommon libxcb_util libxcb_util_render libxcb_util_keysyms libxcb_util_image libxcb_util_wm libglvnd
 $(package)_qt_libs=corelib network widgets gui plugins testlib
 $(package)_linguist_tools = lrelease lupdate lconvert
 $(package)_patches = qt.pro