[Debian-science-sagemath] GAP: issue related to compressed manual.six: PATCHES: reproducing issue

[Bill Allombert]

On Mon, Dec 12, 2016 at 10:19:18PM +0100, Bill Allombert wrote:
> On Mon, Dec 12, 2016 at 06:06:37PM +0100, Bill Allombert wrote:
> > On Sun, Dec 11, 2016 at 11:15:00PM +0000, Ximin Luo wrote:
> > > Did you remove test.w before trying the tests? I think it is still
> > > somehow autpgrp-related. Also the "corrupted" messages seem to be
> > > separate from the actual failure of "no method found":
> > 
> > I agree with you. But the "corrupted" messages are still a bug even
> > if they do not affect Sage.
> 
> I can reproduce this bug using a pristine gap installation without any
> Debian stuff:
> 
> rm -f workspace file file.gz
> echo "abcdefgh" > file
> gzip file
> echo 'SaveWorkspace("workspace");' | bin/*/gap -q -b
> echo 'ReadLine(InputTextFile("file"));' | bin/*/gap -q -b
> echo 'ReadLine(InputTextFile("file"));' | bin/*/gap -q -b -L workspace
> 
> I will report it upstream.

Upstream send me the attached patch which fix this problem.
Please confirm this address the original issue.

Cheers,
-- 
Bill. <ballombe at debian.org>

Imagine a large red swirl here. 
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Index: gap-4r8p6/src/sysfiles.c
===================================================================
--- gap-4r8p6.orig/src/sysfiles.c
+++ gap-4r8p6/src/sysfiles.c
@@ -2332,7 +2332,7 @@ Int HasAvailableBytes( UInt fid )
       syBuf[fid].fp == -1)
     return -1;
 
-  if (syBuf[fid].bufno > 0)
+  if (syBuf[fid].bufno >= 0)
     {
       bufno = syBuf[fid].bufno;
       if (syBuffers[bufno].bufstart < syBuffers[bufno].buflen)