qcow: Use bdrv_(p)write_sync for metadata writes

[qemu.git] / rules.mak

diff --git a/rules.mak b/rules.mak
index 77a801b4986ef6cbd237a99b68521dec084acdd1..5d9f684c24b68ddc0247c72e82693811c697e5b6 100644 (file)
--- a/rules.mak
+++ b/rules.mak
@@ -11,16 +11,17 @@ MAKEFLAGS += -rR
 %.m:
 %.mak:
 
-QEMU_CFLAGS += -MMD -MP -MT $@
+# Flags for dependency generation
+QEMU_DGFLAGS += -MMD -MP -MT $@
 
 %.o: %.c $(GENERATED_HEADERS)
-       $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(CFLAGS) -c -o $@ $<,"  CC    $(TARGET_DIR)$@")
+       $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<,"  CC    $(TARGET_DIR)$@")
 
 %.o: %.S
-       $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(CFLAGS) -c -o $@ $<,"  AS    $(TARGET_DIR)$@")
+       $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<,"  AS    $(TARGET_DIR)$@")
 
 %.o: %.m
-       $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(CFLAGS) -c -o $@ $<,"  OBJC  $(TARGET_DIR)$@")
+       $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<,"  OBJC  $(TARGET_DIR)$@")
 
 LINK = $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ $(1) $(ARLIBS_BEGIN) $(ARLIBS) $(ARLIBS_END) $(LIBS),"  LINK  $(TARGET_DIR)$@")
 
@@ -46,3 +47,6 @@ cc-option = $(if $(shell $(CC) $1 $2 -S -o /dev/null -xc /dev/null \
 %.h-timestamp: %.mak
        $(call quiet-command, sh $(SRC_PATH)/create_config < $< > $@, "  GEN   $*.h")
        @cmp $@ $*.h >/dev/null 2>&1 || cp $@ $*.h
+
+# will delete the target of a rule if commands exit with a nonzero exit status
+.DELETE_ON_ERROR: