spice uses std::list allocator, which requires gcc >= 6. There are no known autobuilder failures as we don't test toolchains as old as gcc 5. Signed-off-by: Julien Olivain <ju.o@free.fr> [Thomas: extracted from https://patchwork.ozlabs.org/project/buildroot/patch/20241122213809.176709-1-ju.o@free.fr/] Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> (cherry picked from commit e09811f97184a1e1320cfb49970c12858fc8a0f1) Signed-off-by: Thomas Perale <thomas.perale@mind.be>