vpath bug

[Ulvr, John]

I have the following makefile:

vpath %.c c:/usr/Leviticus/cm/RTCS2.76/SOURCE/APPS

default : binfile.o

%.o: %.c
        echo "building .o file"   $<  $@


When I run it, I get the following error:
make: *** No rule to make target `binfile.o', needed by `default'.  Stop.
even though binfile.c exists in that directory

If I change the makefile to read:

vpath %.c c:/usr/Leviticus/cm/RTCS2.76\SOURCE/APPS              (notice one
slash has changed!)

default : binfile.o

%.o: %.c
        echo "building .o file"   $<  $@

I get the following output:
echo "building .o file"   /usr/Leviticus/cm/RTCS2.76\SOURCE/APPS/binfile.c
binfile.o
building .o file /usr/Leviticus/cm/RTCS2.76SOURCE/APPS/binfile.c binfile.o



This is a problem, as many commands intererate
/usr/Leviticus/cm/RTCS2.76\SOURCE/APPS/ as
usr/Leveviticus/cm/RTCS2.76SOURCE/APPS/...  The worst part is, there's no
way around this problem that I can think of except for a really ugly subst
command.

I am running gnu make v3.79.1.  This bug occurs with both MAKE_MODE=unix and
MAKE_MODE undefined.

John