build failure from ghc cvs

[Simon Marlow]

Fixed in CVS.  If you're reporting bugs with the CVS HEAD sources, then
please use cvs-ghc at haskell.org.

Cheers,
	Simon 

> -----Original Message-----
> From: glasgow-haskell-bugs-bounces at haskell.org 
> [mailto:glasgow-haskell-bugs-bounces at haskell.org] On Behalf 
> Of Jeremy Shaw
> Sent: 02 February 2004 02:34
> To: glasgow-haskell-bugs at haskell.org
> Subject: build failure from ghc cvs
> 
> Hello, 
> 
> I tried build GHC from 2/1/2004 cvs and it failed with the 
> following error message:
> 
> main/SysTools.lhs:739:
>     Ambiguous occurrence `rawSystem'
>     It could refer to either `System.Cmd.rawSystem', imported 
> from System.Cmd at main/SysTools.lhs:112
> 		          or `SysTools.rawSystem', defined at 
> main/SysTools.lhs:785
> 
> main/SysTools.lhs:786: Variable not in scope: `withCString'
> 
> main/SysTools.lhs:787: Variable not in scope: `withMany'
> 
> main/SysTools.lhs:787: Variable not in scope: `withCString'
> 
> main/SysTools.lhs:788: Variable not in scope: `withArray0'
> 
> main/SysTools.lhs:788: Variable not in scope: `nullPtr'
> 
> main/SysTools.lhs:789: Variable not in scope: `throwErrnoIfMinus1'
> 
> main/SysTools.lhs:794:
>     Type constructor or class not in scope: `CString'
> 
> main/SysTools.lhs:794:
>     Type constructor or class not in scope: `Ptr'
> 
> main/SysTools.lhs:794:
>     Type constructor or class not in scope: `CString'
> <<ghc: 32696704 bytes, 9 GCs, 986470/1917080 avg/max bytes 
> residency (2 samples), 17M in use, 0.00 INIT (0.00 elapsed), 
> 0.27 MUT (0.40 elapsed), 0.10 GC (0.11 elapsed) :ghc>>
> make[3]: *** [stage1/main/SysTools.o] Error 1
> make[2]: *** [all] Error 1
> make[2]: Leaving directory `/home/toadx/src/fptools/ghc'
> make[1]: *** [build] Error 1
> make[1]: Leaving directory `/home/toadx/src/fptools'
> make: *** [build-stamp] Error 2
> 
> 
> 
> 
> I tried building with 5.04 and 6.2. (but not 6.2.1 or higher).
> 
> I reverted SysTools.lhs to version 1.112 and the problem went
> away. Here are the relevant cvs log entries and diffs.
> 
> 
> ----------------------------
> revision 1.113
> date: 2004/01/28 10:04:25;  author: simonpj;  state: Exp;  
> lines: +11 -3
> 	  ---------------------------------------
>   	 Fix the WinME/98/95 double-backslash bug
> 	  ---------------------------------------
> 
> 		Merge to stable branch, at least
> 		once we are sure it's right
> 
> Backslashes should not be escaped in command-line arguments 
> for rawSystem,
> on Win32.  This only actually causes failures on WinME/98/95, 
> and we can'te
> test that since we don't have it.  But this fix seems right 
> regardless.
> 
> There are extensive new comments in libraries/base/System/Cmd.hs which
> describe the issues.
> 
> 
> Index: SysTools.lhs
> ===================================================================
> RCS file: /cvs/fptools/ghc/compiler/main/SysTools.lhs,v
> retrieving revision 1.112
> retrieving revision 1.113
> diff -r1.112 -r1.113
> 766a767,776
> > --
> > -- In GHC 6.2.1 there's a correct implementation of rawSystem in the
> > -- library System.Cmd.  If we are compiling with an earlier 
> version of
> > -- GHC than this, we'd better have a copy of the correct 
> implementation
> > -- right here.
> > 
> > -- If you ever alter this code, you must alter 
> > --	libraries/base/System/Cmd.hs
> > -- at the same time!  There are also exensive comments in System.Cmd
> > -- thare are not repeated here -- go look!
> 768d777
> < #if __GLASGOW_HASKELL__ < 601
> 770c779
> < -- This code is copied from System.Cmd on GHC 6.1.
> ---
> > #if __GLASGOW_HASKELL__ < 621
> 813d821
> < 	escape '\\' str = '\\' : '\\' : str
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