absolute pathnames not handled in b17.1 make

[Fergus Henderson]

Jay Brown, you wrote:
> 
> target_file: /users/dirx/file.vhd
> 	create_target_file commands
> 
> gmake: *** No rule to make target '/users/dirx/file.c', needed by
> 'target_file'. Stop

I'm not sure whether this is really related to the use of absolute
paths, because I have had a report from a user of a bug with a similar
symptom that didn't involve an absolute path:

	-----------------------------------------------------------------
	cd boehm_gc && PATH=/bin:../scripts:../util:$PATH MMAKE_VPATH=.
	MMAKE_DIR=../scripts ../scripts/mmake  PROF=$prof
	MAKEFLAGS=""; export MAKEFLAGS; \
	make  GRADE=asm_fast.gc PROF= libgc.a \
		libgc.a
	make: *** No rule to make target `gc_hdrs.h', needed by `alloc.o'. 
	Stop.
	make: *** [submake] Error 2
	make: *** [boehm_gc] Error 2
	-----------------------------------------------------------------
	doing a touch boehm_gc/*.[ch] means it goes further
	-----------------------------------------------------------------

In this case, the file `gc_hdrs.h' did exist, so make shouldn't
have needed a rule to create it.

> I also noticed that you cannot use drive letters when specifying full
> paths. It seems that this version of make does not like the colon.

Try `//c/dir' instead of `c:\dir'.

-- 
Fergus Henderson <fjh@cs.mu.oz.au>   |  "I have always known that the pursuit
WWW: < http://www.cs.mu.oz.au/~fjh >   |  of excellence is a lethal habit"
PGP: finger fjh@128.250.37.3         |     -- the last words of T. S. Garp.
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