package/glmark2: drm-glesv2 needs libdrm

Fixes:
http://autobuild.buildroot.net/results/58a/58a498fac83cbb55b252ab54cd8db04570bb5ec9/

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
[yann.morin.1998@free.fr: comment on same line as depends-on]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 5b401925baa99bc5a8c1a1f2f55ad51b3a05fc5a)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/glmark2/Config.in

@@ -7,6 +7,7 @@ config BR2_PACKAGE_GLMARK2_FLAVOR_DRM_GLESV2
 	depends on BR2_PACKAGE_HAS_LIBEGL
 	depends on BR2_PACKAGE_HAS_LIBGLES
 	depends on BR2_PACKAGE_HAS_UDEV
+	depends on BR2_TOOLCHAIN_HAS_THREADS  # libpthread-stubs -> libdrm
 	select BR2_PACKAGE_GLMARK2_FLAVOR_ANY
 
 config BR2_PACKAGE_GLMARK2_FLAVOR_DRM_GL
@@ -61,6 +62,7 @@ config BR2_PACKAGE_GLMARK2
 	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # C++14
 	depends on BR2_PACKAGE_GLMARK2_FLAVOR_ANY
 	select BR2_PACKAGE_JPEG
+	select BR2_PACKAGE_LIBDRM if BR2_PACKAGE_GLMARK2_FLAVOR_DRM_GLESV2
 	select BR2_PACKAGE_LIBPNG
 	select BR2_PACKAGE_WAYLAND_PROTOCOLS if BR2_PACKAGE_GLMARK2_FLAVOR_WAYLAND_GL
 	select BR2_PACKAGE_WAYLAND_PROTOCOLS if BR2_PACKAGE_GLMARK2_FLAVOR_WAYLAND_GLESV2

package/glmark2/glmark2.mk

@@ -11,7 +11,7 @@ GLMARK2_LICENSE_FILES = COPYING COPYING.SGI
 GLMARK2_DEPENDENCIES = host-pkgconf jpeg libegl libpng
 
 ifeq ($(BR2_PACKAGE_GLMARK2_FLAVOR_DRM_GLESV2),y)
-GLMARK2_DEPENDENCIES += libgles udev
+GLMARK2_DEPENDENCIES += libdrm libgles udev
 GLMARK2_FLAVORS += drm-glesv2
 endif