The mentioned auto-generated file is no more part of the

GCC sources, it's auto-generated in $(builddir) during build.

	PR target/92055
	* contrib/gcc_update (files_and_dependencies): Remove
	entry for gcc/config/avr/t-multilib.

ChangeLog

+2020-01-14  Georg-Johann Lay  <avr@gjlay.de>
+
+	The mentioned auto-generated file is no more part of the
+
+	GCC sources, it's auto-generated in $(builddir) during build.
+
+	PR target/92055
+	* contrib/gcc_update (files_and_dependencies): Remove
+	entry for gcc/config/avr/t-multilib.
+
 2020-01-14  Anatoly Sokolov <aesok@dol.ru>
 
 	* MAINTAINERS: Update my email address.

contrib/gcc_update

@@ -82,7 +82,6 @@ gcc/fixinc/fixincl.x: gcc/fixinc/fixincl.tpl gcc/fixinc/inclhack.def
 gcc/config/aarch64/aarch64-tune.md: gcc/config/aarch64/aarch64-cores.def gcc/config/aarch64/gentune.sh
 gcc/config/arm/arm-tune.md: gcc/config/arm/arm-cpus.in gcc/config/arm/parsecpu.awk
 gcc/config/arm/arm-tables.opt: gcc/config/arm/arm-cpus.in gcc/config/arm/parsecpu.awk
-gcc/config/avr/t-multilib: gcc/config/avr/avr-mcus.def gcc/config/avr/genmultilib.awk
 gcc/config/c6x/c6x-tables.opt: gcc/config/c6x/c6x-isas.def gcc/config/c6x/genopt.sh
 gcc/config/c6x/c6x-sched.md: gcc/config/c6x/c6x-sched.md.in gcc/config/c6x/gensched.sh
 gcc/config/c6x/c6x-mult.md: gcc/config/c6x/c6x-mult.md.in gcc/config/c6x/genmult.sh