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- Fix spurious rebuilds for (parallel) out-of-tree builds.

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Make sure that the directories are order-only prerequisites. Otherwise we
  may have object files created after the timestamp of the directory was
  updated which would lead to spurious rebuilds (as some of the dentries
  may be older than the dir itself).
This commit is contained in:
Bernhard Reutner-Fischer 2005-10-05 10:06:11 +00:00
parent 5c071bcf2f
commit 7abe709867
1 changed files with 12 additions and 8 deletions
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20
e2fsprogs/Makefile.in
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@ -7,9 +7,9 @@
E2FSPROGS_AR:=e2fsprogs.a
E2FSPROGS_DIR:=$(top_builddir)/e2fsprogs
E2FSPROGS_INC:=$(top_srcdir)/e2fsprogs
E2FSPROGS_SRC:=$(top_srcdir)/e2fsprogs
E2FSPROGS_CFLAGS := -I$(E2FSPROGS_INC) -include $(E2FSPROGS_INC)/e2fsbb.h
E2FSPROGS_CFLAGS := -I$(E2FSPROGS_SRC) -include $(E2FSPROGS_SRC)/e2fsbb.h
BLKID_SRC := cache.c dev.c devname.c devno.c blkid_getsize.c \
probe.c read.c resolve.c save.c tag.c
@ -42,13 +42,17 @@ UUID_OBJS := $(patsubst %.c,%.o, $(UUID_SRCS))
# for building out-of-tree we need to make sure that the directories to hold
# the object tree are created
$(patsubst %,$(E2FSPROGS_DIR)/%, blkid e2fsck e2p ext2fs uuid):
mkdir -p "$@"
@mkdir -p "$@"
$(patsubst %,$(E2FSPROGS_DIR)/%, $(BLKID_OBJS)):$(E2FSPROGS_DIR)/blkid
$(patsubst %,$(E2FSPROGS_DIR)/%, $(E2FSCK_OBJS)):$(E2FSPROGS_DIR)/e2fsck
$(patsubst %,$(E2FSPROGS_DIR)/%, $(E2P_OBJS)):$(E2FSPROGS_DIR)/e2p
$(patsubst %,$(E2FSPROGS_DIR)/%, $(EXT2FS_OBJS)):$(E2FSPROGS_DIR)/ext2fs
$(patsubst %,$(E2FSPROGS_DIR)/%, $(UUID_OBJS)):$(E2FSPROGS_DIR)/uuid
# make sure that the directories are order-only prerequisites. Otherwise we
# may have object files created after the timestamp of the directory was
# updated which would lead to spurious rebuilds (as some of the dentries
# may be older than the dir itself).
$(patsubst %,$(E2FSPROGS_DIR)/%, $(BLKID_OBJS)):|$(E2FSPROGS_DIR)/blkid
$(patsubst %,$(E2FSPROGS_DIR)/%, $(E2FSCK_OBJS)):|$(E2FSPROGS_DIR)/e2fsck
$(patsubst %,$(E2FSPROGS_DIR)/%, $(E2P_OBJS)):|$(E2FSPROGS_DIR)/e2p
$(patsubst %,$(E2FSPROGS_DIR)/%, $(EXT2FS_OBJS)):|$(E2FSPROGS_DIR)/ext2fs
$(patsubst %,$(E2FSPROGS_DIR)/%, $(UUID_OBJS)):|$(E2FSPROGS_DIR)/uuid
E2FSPROGS-y:=
E2FSPROGS-$(CONFIG_CHATTR) += chattr.o $(E2P_OBJS)