[U-Boot-Users] [PATCH] Remove $(VERSION_FILE) from PHONY Target List

[Grant Erickson]

When building against non-local, non-disk-backed file systems (e.g. NFS,
tmpfs), the u-boot build can iterate forever, attempting to re-generate
"include/autoconf.mk". This occurs because $(VERSION_FILE) (aka
${ROOT}/u-boot/build/include/version_autogenerated.h) is always regarded as
out-of-date because it is in the .PHONY target list, even though it's a real
file and seems to need to be only created once and only once.

This patch removes $(VERSION_FILE) from the .PHONY target list and has been
verified to work with various flavors and builds of make-3.81 against NFS,
ext2fs, ext3fs and tmpfs file systems.

More detail at:

http://sourceforge.net/mailarchive/message.php?msg_id=C4180895.E556%25gerick
son%40nuovations.com

Signed-off-by: Grant Erickson <gerickson at nuovations.com>

---
diff --git a/Makefile b/Makefile
index e5b4210..50069b7 100644
--- a/Makefile
+++ b/Makefile
@@ -247,7 +247,7
 LIBS += api/libapi.a
 
 LIBS := $(addprefix $(obj),$(LIBS))
-.PHONY : $(LIBS) $(VERSION_FILE)
+.PHONY : $(LIBS)
 
 # Add GCC lib
 PLATFORM_LIBS += -L $(shell dirname `$(CC) $(CFLAGS)
-print-libgcc-file-name`) -lgcc