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Date:	Sun, 5 Oct 2003 15:48:25 -0400 (EDT)
From:	Igor Pechtchanski <pechtcha AT cs DOT nyu DOT edu>
Reply-To:	cygwin AT cygwin DOT com
To:	Cliff Hones <cliff AT aonix DOT co DOT uk>
cc:	cygwin AT cygwin DOT com
Subject:	Re: cygpath hangs from postinstall scripts when called like $(cygpath
	-S) but not otherwise
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On Sat, 4 Oct 2003, Cliff Hones wrote:

> Igor Pechtchanski wrote:
>
> > Oh, and this might explain why I'm not seeing the hang on my machine:
> >
> > $ cygcheck /bin/cygpath.exe
> > C:/cygwin/bin/cygpath.exe
> >   C:/cygwin/bin\cygwin1.dll
> >     C:\WINNT\System32\KERNEL32.dll
> >       C:\WINNT\System32\NTDLL.DLL
> >   C:\WINNT\System32\SHELL32.DLL
> >     C:\WINNT\System32\GDI32.DLL
> >       C:\WINNT\System32\USER32.DLL
> >     C:\WINNT\System32\ADVAPI32.DLL
> >       C:\WINNT\System32\RPCRT4.DLL
> >     C:\WINNT\System32\SHLWAPI.DLL
> >     C:\WINNT\System32\COMCTL32.DLL
> > $ cygpath --version
> > cygpath (cygwin) 1.29
> > Path Conversion Utility
> > Copyright 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
> > Compiled on Sep 20 2003
> > $ cygcheck -cd cygwin
> > Cygwin Package Information
> > Package              Version
> > cygwin               1.5.5-1
> > $ uname -a
> > CYGWIN_NT-5.0 pechtcha 1.5.5(0.94/3/2) 2003-09-20 16:31 i686 unknown unknown Cygwin
> > $
> >
> > I'm running on Win2k, which may be significant.
>
> Well, that is strange.  I am also on Win2k, and cygcheck --version
> shows exactly the same output as yours (which isn't surprising - my
> machine is pretty well up to date).
>
> Having said that, I've never experienced the hangup which others are
> reporting - though I have seen the postinstall script in question
> take ages to complete on an older, slower NT box.
>
> The dependence is coming from shlwapi.dll.  Here is some info:
>
> $ ls -l /d/winnt/system32/shlwapi.dll
> -rwxrwxr-x+   1 Administ SYSTEM     395264 Jul 13 16:05 /d/winnt/system32/shlwapi.dll
>
> $ cygcheck /d/winnt/system32/shlwapi.dll
> D:/winnt/system32/shlwapi.dll
>   D:/winnt/system32\msvcrt.dll
>     D:/winnt/system32\KERNEL32.dll
>       D:/winnt/system32\NTDLL.DLL
>   D:/winnt/system32\GDI32.dll
>     D:/winnt/system32\USER32.DLL
>   D:/winnt/system32\ADVAPI32.dll
>     D:/winnt/system32\RPCRT4.DLL
>
> I suspect you will see something different.  I guess if on some Windows
> systems shlwapi.dll has a dependence on msvcrt.dll, it is not safe
> to call this from any cygwin app.
>
> -- Cliff

Bingo.  I think we have different service packs applied or something.  I'm
getting the following on my machine:

$ cygcheck -s | head -5

Cygwin Win95/NT Configuration Diagnostics
Current System Time: Sun Oct 05 15:46:24 2003

Windows 2000 Professional Ver 5.0 Build 2195 Service Pack 2
$ ls -l /mnt/c/WINNT/system32/shlwapi.dll
-rwxrwxr-x+   1 Administ SYSTEM     300816 Oct 20  2000 /mnt/c/WINNT/system32/shlwapi.dll*
$ cygcheck /mnt/c/WINNT/system32/shlwapi.dll
c:/WINNT/system32/shlwapi.dll
  c:/WINNT/system32\GDI32.dll
    c:/WINNT/system32\NTDLL.DLL
    c:/WINNT/system32\KERNEL32.DLL
    c:/WINNT/system32\USER32.DLL
  c:/WINNT/system32\ADVAPI32.dll
    c:/WINNT/system32\RPCRT4.DLL
$

Curiously enough,

$ cygcheck /cygdrive/c/WINNT/system32/shlwapi.dll
C:/cygwin/cygdrive/c/WINNT/system32/shlwapi.dll - Cannot open
$

It looks like cygcheck's mount processing code doesn't understand the
cygdrive prefix...
	Igor
-- 
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