--- a/mesa-demos.build	2022-08-10 20:14:25.481512367 +0000
+++ b/mesa-demos.build	2022-08-10 20:16:31.667580938 +0000
@@ -20,6 +20,7 @@
   ./configure \
     --enable-autotools \
     --prefix=/usr \
+    --disable-gles1 \
     --build=$ARCH-slackware-linux || exit 1
   make $NUMJOBS || exit 1
   # Install all the demos (including the pointless ones) at first, in a
@@ -27,7 +28,8 @@
   make install DESTDIR=$PKG/cruft || exit 1
   # Install gears and glinfo, as well as a few other demos:
   mkdir -p $PKG/usr/bin
-  for demo in eglinfo gears glinfo glthreads glxcontexts glxdemo glxgears \
+  for demo in eglinfo es2_info es2gears_x11 \
+    gears glinfo glthreads glxcontexts glxdemo glxgears \
     glxgears_fbconfig glxheads glxinfo glxpbdemo glxpixmap ; do
     mv --verbose $PKG/cruft/usr/bin/$demo $PKG/usr/bin
   done