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Diffstat (limited to 'rules.mak')
-rw-r--r--rules.mak21
1 files changed, 21 insertions, 0 deletions
diff --git a/rules.mak b/rules.mak
index 54ac88ab3..ca95351d9 100644
--- a/rules.mak
+++ b/rules.mak
@@ -1,4 +1,16 @@
+# Don't use implicit rules or variables
+# we have explicit rules for everything
+MAKEFLAGS += -rR
+
+# Files with this suffixes are final, don't try to generate them
+# using implicit rules
+%.d:
+%.h:
+%.c:
+%.m:
+%.mak:
+
%.o: %.c
$(call quiet-command,$(CC) $(QEMU_CFLAGS) $(CFLAGS) -c -o $@ $<," CC $(TARGET_DIR)$@")
@@ -23,3 +35,12 @@ 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)
+
+# Generate timestamp files for .h include files
+
+%.h: %.h-timestamp
+ @test -f $@ || cp $< $@
+
+%.h-timestamp: %.mak
+ $(call quiet-command, $(SRC_PATH)/create_config < $< > $@, " GEN $*.h")
+ @cmp $@ $*.h >/dev/null 2>&1 || cp $@ $*.h