package/mesa3d-demos: add glut support

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/mesa3d-demos/mesa3d-demos.mk

@@ -12,7 +12,6 @@ MESA3D_DEMOS_DEPENDENCIES = host-pkgconf
 MESA3D_DEMOS_LICENSE = MIT
 
 MESA3D_DEMOS_CONF_OPTS += \
-	--without-glut \
 	--disable-osmesa \
 	--disable-gles1
 
@@ -58,6 +57,19 @@ else
 MESA3D_DEMOS_CONF_OPTS += --disable-freetype2
 endif
 
+ifeq ($(BR2_PACKAGE_LIBFREEGLUT),y)
+MESA3D_DEMOS_DEPENDENCIES += libfreeglut
+MESA3D_DEMOS_CONF_OPTS += --with-glut=$(STAGING_DIR)/usr
+# osmesa support depends on glut
+ifeq ($(BR2_PACKAGE_MESA3D_OSMESA),y)
+MESA3D_DEMOS_CONF_OPTS += --enable-osmesa
+else
+MESA3D_DEMOS_CONF_OPTS += --disable-osmesa
+endif
+else
+MESA3D_DEMOS_CONF_OPTS += --without-glut --disable-osmesa
+endif
+
 ifeq ($(BR2_PACKAGE_WAYLAND),y)
 MESA3D_DEMOS_DEPENDENCIES += wayland
 MESA3D_DEMOS_CONF_OPTS += --enable-wayland