1 files changed, 5 insertions, 3 deletions

diff --git a/tools/make.inc b/tools/make.inc
index 25173ae7e0..471d98a9de 100644
--- a/tools/make.inc
+++ b/tools/make.inc
@@ -12,9 +12,11 @@ $(OBJDIR)/%.o: %.S
 # to cause an error code to get returned and thus stop the build
 $(DEPFILE): $(SOURCES)
         @rm -f $(DEPFILE)
-        @(for each in $(SOURCES); do \
-          obj=`echo $$each | sed -e 's/\.[cS]/.o/'`; \
-          $(CC) -MM -MT "$(OBJDIR)/$$obj" $(CFLAGS) $$each >> $(DEPFILE) 2>/dev/null; \
+        @(for each in $(SOURCES) x; do \
+          if test "x" != "$$each"; then \
+            obj=`echo $$each | sed -e 's/\.[cS]/.o/'`; \
+            $(CC) -MM -MT "$(OBJDIR)/$$obj" $(CFLAGS) $$each >> $(DEPFILE) 2>/dev/null; \
+          fi; \
         done; \
         echo "oo" >/dev/null )