File project.diff of Package PrusaSlicer

--- PrusaSlicer.spec.orig
+++ PrusaSlicer.spec
@@ -1,6 +1,7 @@
 #
 # spec file for package PrusaSlicer
 #
+# Copyright (c) 2026 SUSE LLC
 # Copyright (c) 2025 SUSE LLC and contributors
 #
 # All modifications and additions to the file contributed by third parties
@@ -151,6 +152,7 @@ export CC=gcc-%gcc_ver CXX=g++-%gcc_ver
 %cmake \
   -DCMAKE_CXX_STANDARD=17 \
   -DSLIC3R_EGL=ON \
+  -DSLIC3R_OPENGL_ES=ON \
   -DSLIC3R_FHS=ON \
   -DSLIC3R_GTK=3 \
   -DOPENVDB_FIND_MODULE_PATH=%{_libdir}/cmake/OpenVDB