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Date:	Tue, 03 Oct 2000 17:54:38 -0700
To:	cygwin AT sourceware DOT cygnus DOT com
From:	Chad Loder <cloder AT acm DOT org>
Subject:	Cygpath, backslashes, and sh.exe
In-Reply-To:	<003101c02d8c$500db1c0$3c5350d8@guinness>
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	<200010032207 DOT e93M7bh18034 AT laxmls02 DOT socal DOT rr DOT com>
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Hi all. Thanks for your help with cygpath (I *did* look in 
the FAQ, I just didn't know what to look for). :)

cygpath *seems* to be doing the right thing (it's hard
to tell), but there is some sort of problem with
backslashes. I have a rule like this:

%.obj : %.cpp
	$(CC) $(CPPFLAGS) $(shell cygpath -w $<)

The idea is that this will invoke sh.exe with something like:

 /c/VC98/bin/cl.exe /Fo:globref.obj c:\r7\jni\src\globref.cpp

But instead it seems to do:

 /c/VC98/bin/cl.exe /Fo:globref.obj c:r7jnisrcglobref.cpp

which causes the compiler to bomb out with:

 fatal error C1083: Cannot open source file: 'c:r7jnisrcglobref.cpp': No
such file or  directory

I figured I need to escape the backslashes before passing them
to a shell command. So I tried things like:

%.obj : %.cpp
	$(CC) $(CPPFLAGS) $(subst,\\,\\\\,$(shell cygpath -w $<))

but the subst function seems to just return an empty string (this
happens even when I use something without backslashes,
like $(subst,a,b,whatever).

Has anyone run into this?

Thanks,
	c

	c

At 05:50 PM 10/3/2000 -0500, you wrote:
>Chad:
>
>    Hey, no problem.  Let me know if you run into other problems.  My
>company uses it's own make system under cygwin as well.  We also use Visual
>C++ as the compiler.
>
>cheers,
>-Matt



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