qcow2: Inform block layer about discard boundaries

[mirror_qemu.git] / Makefile

diff --git a/Makefile b/Makefile
index ba92f9eefec611077eac50a3b3b1f5a2b41b00a8..50b4b3afb966ade060d08916e20a6a530de32e85 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -185,7 +185,7 @@ qemu-version.h: FORCE
                                printf '""\n'; \
                        fi; \
                fi) > $@.tmp)
-       $(call quiet-command, cmp --quiet $@ $@.tmp || mv $@.tmp $@)
+       $(call quiet-command, cmp -s $@ $@.tmp || mv $@.tmp $@)
 
 config-host.h: config-host.h-timestamp
 config-host.h-timestamp: config-host.mak
@@ -225,8 +225,9 @@ dtc/%:
 $(SUBDIR_RULES): libqemuutil.a libqemustub.a $(common-obj-y) $(qom-obj-y) $(crypto-aes-obj-$(CONFIG_USER_ONLY))
 
 ROMSUBDIR_RULES=$(patsubst %,romsubdir-%, $(ROMS))
+# Only keep -O and -g cflags
 romsubdir-%:
-       $(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C pc-bios/$* V="$(V)" TARGET_DIR="$*/",)
+       $(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C pc-bios/$* V="$(V)" TARGET_DIR="$*/" CFLAGS="$(filter -O% -g%,$(CFLAGS))",)
 
 ALL_SUBDIRS=$(TARGET_DIRS) $(patsubst %,pc-bios/%, $(ROMS))