initial buildroot for linux 5.15

package/mesa3d-headers/Config.in

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+config BR2_PACKAGE_MESA3D_HEADERS
+	bool
+	help
+	  Mesa 3D, an open-source implementation of the OpenGL
+	  specification.
+
+	  This package only installs headers needed by other packages.
+
+	  http://mesa3d.org

package/mesa3d-headers/dri.pc

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+prefix=/usr
+libdir=${prefix}/lib
+includedir=${prefix}/include
+
+dridriverdir=/usr/lib/dri
+
+Name: dri
+Description: Direct Rendering Infrastructure
+Version: @VERSION@
+Cflags: -I${includedir}

package/mesa3d-headers/mesa3d-headers.hash

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+../mesa3d/mesa3d.hash

package/mesa3d-headers/mesa3d-headers.mk

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+################################################################################
+#
+# mesa3d-headers
+#
+################################################################################
+
+# mesa3d-headers is inherently incompatible with mesa3d, so error out
+# if both are enabled.
+ifeq ($(BR2_PACKAGE_MESA3D)$(BR2_PACKAGE_MESA3D_HEADERS),yy)
+$(error mesa3d-headers enabled, but mesa3d enabled too)
+endif
+
+# Not possible to directly refer to mesa3d variables, because of
+# first/second expansion trickery...
+MESA3D_HEADERS_VERSION = 21.1.8
+MESA3D_HEADERS_SOURCE = mesa-$(MESA3D_HEADERS_VERSION).tar.xz
+MESA3D_HEADERS_SITE = https://archive.mesa3d.org
+MESA3D_HEADERS_DL_SUBDIR = mesa3d
+MESA3D_HEADERS_LICENSE = MIT, SGI, Khronos
+MESA3D_HEADERS_LICENSE_FILES = docs/license.rst
+MESA3D_HEADERS_CPE_ID_VENDOR = mesa3d
+MESA3D_HEADERS_CPE_ID_PRODUCT = mesa
+
+# Only installs header files
+MESA3D_HEADERS_INSTALL_STAGING = YES
+MESA3D_HEADERS_INSTALL_TARGET = NO
+
+MESA3D_HEADERS_DIRS = KHR
+
+ifeq ($(BR2_PACKAGE_HAS_LIBGL),y)
+
+MESA3D_HEADERS_DIRS += GL
+
+ifeq ($(BR2_PACKAGE_XORG7),y)
+
+# Not using $(SED) because we do not want to work in-place, and $(SED)
+# contains -i.
+define MESA3D_HEADERS_BUILD_DRI_PC
+	sed -e 's:@VERSION@:$(MESA3D_HEADERS_VERSION):' \
+	    package/mesa3d-headers/dri.pc \
+	    >$(@D)/src/mesa/drivers/dri/dri.pc
+endef
+
+define MESA3D_HEADERS_INSTALL_DRI_PC
+	$(INSTALL) -D -m 0644 $(@D)/include/GL/internal/dri_interface.h \
+		$(STAGING_DIR)/usr/include/GL/internal/dri_interface.h
+	$(INSTALL) -D -m 0644 $(@D)/src/mesa/drivers/dri/dri.pc \
+		$(STAGING_DIR)/usr/lib/pkgconfig/dri.pc
+endef
+
+endif # Xorg
+
+endif # OpenGL
+
+ifeq ($(BR2_PACKAGE_HAS_LIBEGL),y)
+MESA3D_HEADERS_DIRS += EGL
+endif
+
+ifeq ($(BR2_PACKAGE_HAS_LIBGLES),y)
+MESA3D_HEADERS_DIRS += GLES GLES2
+endif
+
+ifeq ($(BR2_PACKAGE_HAS_LIBOPENCL),y)
+MESA3D_HEADERS_DIRS += CL
+endif
+
+define MESA3D_HEADERS_BUILD_CMDS
+	$(MESA3D_HEADERS_BUILD_DRI_PC)
+endef
+
+define MESA3D_HEADERS_INSTALL_STAGING_CMDS
+	$(foreach d,$(MESA3D_HEADERS_DIRS),\
+		cp -dpfr $(@D)/include/$(d) $(STAGING_DIR)/usr/include/ || exit 1$(sep))
+	$(MESA3D_HEADERS_INSTALL_DRI_PC)
+endef
+
+$(eval $(generic-package))