Re: (visual) diff for large files

[michael <cs@networkingnewsletter.org.uk>]

On Fri, 2008-05-02 at 18:54 -0500, Sergio Cuéllar Valdés wrote:
> 2008/5/2 michael <cs@networkingnewsletter.org.uk>:
> >  I had a quick try (before above patch) but it fails on headers:
> >
> >
> >  michael@ratty:~/src/bsd-diff/bin$ gcc --version
> >  gcc (GCC) 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)
> >  Copyright (C) 2006 Free Software Foundation, Inc.
> >  This is free software; see the source for copying conditions.  There is
> >  NO
> >  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
> >  PURPOSE.
> >
> >
> >  michael@ratty:~/src/bsd-diff/bin$ make
> >  cd adb; make  SEPFLAG=-i
> >  make[1]: Entering directory `/home/michael/src/bsd-diff/bin/adb'
> >  cc -O -DNUM_SYMS_CACHE=50   -c -o access.o access.c
> >  In file included from access.c:1:
> >  defs.h:15:25: error: machine/reg.h: No such file or directory
> >  In file included from access.c:1:
> >  defs.h:194: warning: conflicting types for built-in function 'round'
> >  access.c: In function 'acces':
> >  access.c:69: error: 'errno' undeclared (first use in this function)
> >  access.c:69: error: (Each undeclared identifier is reported only once
> >  access.c:69: error: for each function it appears in.)
> >  access.c: In function 'setovmap':
> >  access.c:142: error: 'NOVL' undeclared (first use in this function)
> >  access.c:148: error: invalid use of undefined type 'struct ovlhdr'
> >  make[1]: *** [access.o] Error 1
> >  make[1]: Leaving directory `/home/michael/src/bsd-diff/bin/adb'
> >  make: *** [adb] Error 2
> 
> Hello,
> 
> those errors seem very different of what I get. This are the steps I made:
> 
> 1.  I have unpacked the file file8.tar.gz (MD5:
> 77397e6d554361c127592b1fea2d776f)  in the directory bsd-src.
> 2.  Go to bin/diff directory, where there are the following files:
>       * diff.c
>       * diffdir.c
>       * diff.h
>       * diffh.c
>       * diffreg.c
>       * Makefile
> 

Yes now I am in the right dir and apply your patch and compile I get
some execs but it still falls over with large (2.5GB) input files:

michael@ratty:/tmp/xxdiff_files
$ /home/michael/src/bsd-diff/bin/diff/diff OLDrun.log.part4
run.log.part4
diff: OLDrun.log.part4: Value too large for defined data type