1 files changed, 2 insertions, 1 deletions
diff --git a/rules.mak b/rules.mak
index 094dc0924d..5941b73eb5 100644
--- a/rules.mak
+++ b/rules.mak
@@ -39,7 +39,8 @@ quiet-command = $(if $(V),$1,$(if $(2),@echo $2 && $1, @$1))
 cc-option = $(if $(shell $(CC) $1 $2 -S -o /dev/null -xc /dev/null \
               >/dev/null 2>&1 && echo OK), $2, $3)
 
-set-vpath = $(if $1,$(foreach PATTERN,%.c %.h %.S, $(eval vpath $(PATTERN) $1)))
+VPATH_SUFFIXES = %.c %.h %.S %.m %.mak %.texi
+set-vpath = $(if $1,$(foreach PATTERN,$(VPATH_SUFFIXES), $(eval vpath $(PATTERN) $1)))
 
 # Generate timestamp files for .h include files