ok! can you also test guicast/Makefile additions? two new cases for ppc and one for i386 (netbsd/freebsd uses this as architecture on 32bit x86). Should be relatively safe to land... 

Tested on both the old Debian 9.1 32-bit and the new Debian 11.0 32-bit.  No problems.  Checked into GIT these differences.
8,11d7
< ifeq ($(OBJDIR), i386)
< BOOTSTRAPFLAGS := -DBOOTSTRAP="\"objcopy -B i386 -I binary -O elf32-i386\""
< endif
<
26,36d21
<
< ifeq ($(OBJDIR), ppc64)
< BOOTSTRAPFLAGS := -DBOOTSTRAP="\"objcopy -B powerpc -I binary -O elf64-powerpc\""
< endif
<
< ifeq ($(OBJDIR), ppc)
< BOOTSTRAPFLAGS := -DBOOTSTRAP="\"objcopy -B powerpc -I binary -O elf32-powerpc\""
< endif