From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> commit 8ac3b5cd3e0521d92f9755e90d140382fc292510 upstream. The latest version of grep claims the egrep is now obsolete so the build now contains warnings that look like: egrep: warning: egrep is obsolescent; using grep -E fix this up by moving the vdso Makefile to use "grep -E" instead. Cc: Andy Lutomirski <luto@xxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Reviewed-by: Vincenzo Frascino <vincenzo.frascino@xxxxxxx> Link: https://lore.kernel.org/r/20220920170633.3133829-1-gregkh@xxxxxxxxxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- lib/vdso/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/lib/vdso/Makefile +++ b/lib/vdso/Makefile @@ -17,6 +17,6 @@ $(error ARCH_REL_TYPE_ABS is not set) endif quiet_cmd_vdso_check = VDSOCHK $@ - cmd_vdso_check = if $(OBJDUMP) -R $@ | egrep -h "$(ARCH_REL_TYPE_ABS)"; \ + cmd_vdso_check = if $(OBJDUMP) -R $@ | grep -E -h "$(ARCH_REL_TYPE_ABS)"; \ then (echo >&2 "$@: dynamic relocations are not supported"; \ rm -f $@; /bin/false); fi