behavior on Win depends on whether \ or / is used??

[Mark Galeck (CW)]

Hello,  this is a Windows question,

 

I have 2 subdirectories foobar0 and foobar1, and only in foobar1 there is a file foobar.s  . There is no file foobar.o . 

 

The makefile is:

 

 

SHELL=cmd.exe

           

vpath %.s .\foobar0 .\foobar1

 

%.o : %.s

            echo $<

 

foobar0\foobar.s:;

 

 

This behaves as expected:

 

C:\tmp>make foobar.o

echo .\foobar1/foobar.s

 

 

However, if I change all the backslashes to forward-slashes, then I get:

 

 

C:\tmp>make foobar.o

make: *** No rule to make target `foobar.s', needed by `foobar.o'.  Stop.

 

(this is just a small example, what I observe is that forward slash in directories, misbehaves with vpath on Windows)

 

Is this a bug in Windows make, or in my head? 

 

Mark