Updated the SWI-Prolog hooks file, simplifying the support for the graphical tracer by taking advantage of the new Logtalk "optimize" flag. Currently, in order to use the graphical tracer, it's necessary to turn off both the Logtalk "optimize" flag and the SWI-Prolog "optimise" flag (note the different spelling) and also to set a value for the "code_prefix" flag other than the default '$' before compiling the code that you want to debug.
Updated the SWI-Prolog hooks file, simplifying the support for the graphical tracer by taking advantage of the new Logtalk "optimize" flag. Currently, in order to use the graphical tracer, it's necessary to turn off both the Logtalk "optimize" flag and the SWI-Prolog "optimise" flag (note the different spelling) and also to set a value for the "code_prefix" flag other than the default '$' before compiling the code that you want to debug.

git-svn-id: 4c7b768bc2e2a56aa1c56b1b5a9454ba68342430@6186 ac9c905b-388a-4ddf-9b6a-4063a022bc57

LogtalkDotOrg/logtalk2,LogtalkDotOrg/logtalk2,LogtalkDotOrg/logtalk2,LogtalkDotOrg/logtalk2,LogtalkDotOrg/logtalk2