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From: beareq!quants4!schorr@WHEATIES.AI.MIT.EDU (Andrew Schorr)
Newsgroups: gnu.utils.bug
Subject: Problem with VPATH in GNU Make 3.44
Message-ID: <8903281426.AA02706@quants4>
Date: 28 Mar 89 14:26:25 GMT
Sender: daemon@tut.cis.ohio-state.edu
Distribution: gnu
Organization: GNUs Not Usenet
Lines: 33


Roland,

   I am experiencing the following problem with version 3.44 of GNU Make
(note that the problem is NOT present in version 3.25):

Directory test contains Makefile, test.c, and the sub-directory sun3.
Contents of Makefile:

   test: test.o
	   $(CC) -o $@ $^

   test.o: test.c
	   @ echo "$$< = $<"
	   $(CC) -c -o $@ $<

I have the following alias defined:
   alias Gmake     "gmake -C $ARCH -f ../Makefile 'VPATH=..' \!*"
where the environment variable ARCH is set to sun3 (and gmake is GNU Make 3.44).

With nothing in the sub-directory sun3, I enter:
   Gmake test
The output from gmake is:
   $< = test.c
   cc -c -o test.o test.c
   cpp: test.c: No such file or directory
   gmake: *** Error 2

In previous versions of GNU make, $< has the value ../test.c.


Thanks for your help,
Andrew Schorr <beareq!schorr@wheaties.ai.mit.edu>