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<TITLE>RE: [plt-scheme] MrEd Graphics Questions</TITLE>
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<P><FONT SIZE=2>It seems the prebuild Ubuntu builds should take that into consideration.<BR>
<BR>
-----Original Message-----<BR>
From: Dimitris Vyzovitis [<A HREF="mailto:vyzo@media.mit.edu">mailto:vyzo@media.mit.edu</A>]<BR>
Sent: Fri 4/13/2007 10:37 PM<BR>
To: Williams, M. Douglas<BR>
Cc: plt-scheme@list.cs.brown.edu<BR>
Subject: RE: [plt-scheme] MrEd Graphics Questions<BR>
<BR>
On Fri, 13 Apr 2007, Williams, M. Douglas wrote:<BR>
<BR>
> One other thing. The PLoT package seems to be broken under version 369.8 on Ubuntu 6.10. I get the following message when I try executing any of my plot code.<BR>
><BR>
> Welcome to DrScheme, version 369.8-svn14mar2007 [3m].<BR>
> Language: Graphical (MrEd, includes MzScheme).<BR>
> ffi-lib: couldn't open "/usr/full-369.8/collects/plot/compiled/native/i386-linux/libplplot.so" (/usr/full-369.8/collects/plot/compiled/native/i386-linux/libplplot.so: undefined symbol: __stack_chk_fail_local)<BR>
><BR>
<BR>
In recent ubuntu versions, gcc is configured to compile with<BR>
-fstack-protector by default (pretty retarded).<BR>
<BR>
Either push -fno-stack-protector to CFLAGS or use gcc as the linker:<BR>
export MZSCHEME_DYNEXT_COMPILER_FLAGS=-fno-stack-protector<BR>
or<BR>
export MZSCHEME_DYNEXT_LINKER=/usr/bin/gcc<BR>
<BR>
Or you can use gentoo :p<BR>
<BR>
-- vyzo<BR>
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