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tetex: patch off-by-one to fix segfault

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Fixes #32264.

Patch based on one from Fedora texlive-2007-66 source rpm.

References:
https://bugzilla.redhat.com/show_bug.cgi?id=754517
http://tug.org/pipermail/tex-k/2011-July/002317.html
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=633011
https://www.mail-archive.com/tetex@dbs.uni-hannover.de/msg00968.html

Redhat discussion suggests this happens when using -Wl,-z,relro
(or other linker flags) that change the default memory layout.
This commit is contained in:
Will Dietz 2017-12-09 15:46:13 -06:00
parent 80b6ef9f19
commit 5c81453477
2 changed files with 13 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
pkgs/tools/typesetting/tex/tetex/default.nix
View file

@ -26,7 +26,7 @@ stdenv.mkDerivation {
find ./ -name "config.guess" -exec rm {} \; -exec ln -s ${automake}/share/automake-*/config.guess {} \;
'' else null;
patches = [ ./environment.patch ./getline.patch ./clang.patch ];
patches = [ ./environment.patch ./getline.patch ./clang.patch ./extramembot.patch ];
setupHook = ./setup-hook.sh;

12
pkgs/tools/typesetting/tex/tetex/extramembot.patch Normal file
View file

@ -0,0 +1,12 @@
diff -up texlive-2007/texk/web2c/tex.ch.extramembot texlive-2007/texk/web2c/tex.ch
--- texlive-2007/texk/web2c/tex.ch.extramembot 2006-12-19 02:11:11.000000000 +0100
+++ texlive-2007/texk/web2c/tex.ch 2011-11-30 12:03:32.052795763 +0100
@@ -365,7 +365,7 @@ for i:=@'177 to @'377 do xchr[i]:=i;
{Initialize enc\TeX\ data.}
for i:=0 to 255 do mubyte_read[i]:=null;
for i:=0 to 255 do mubyte_write[i]:=0;
-for i:=0 to 128 do mubyte_cswrite[i]:=null;
+for i:=0 to 127 do mubyte_cswrite[i]:=null;
mubyte_keep := 0; mubyte_start := false;
write_noexpanding := false; cs_converting := false;
special_printing := false; message_printing := false;