complete overhaul of webtry work partition between jail and host

experimental/webtry/build

 #!/bin/sh
 
 # This script builds the webtry server; before compilation we need to create the code template
 # so that it contains all publicly available header files in skia/include.
 #
 # By default, the script expects to be run out of the skia/experimental/webtry directory; 
 # if we move directories around this can be overridden by setting the SKIA_ROOT and WEBTRY_ROOT
 # environment variables to point to the skia source tree and the webtry source tree, 
 # respectively.
 
 [ -z "$SKIA_ROOT" ] && SKIA_ROOT="../.."
 [ -z "$WEBTRY_ROOT" ] && WEBTRY_ROOT=`pwd`
 
+[ -z "$GOROOT" ] && export GOROOT=/home/webtry/go
+[ -z "$GOPATH" ] && export GOPATH=/home/webtry/golib
+
+PATH=$PATH:$GOROOT/bin
+
 cd ${SKIA_ROOT}/include
 echo "Creating compile template..."
 find core effects pathops  -maxdepth 1 -name "*.h" | sed "s#^[^\/]*\/##g" | sed "s/\(.*\)/#include \"\1\"/" | sort > ${WEBTRY_ROOT}/templates/template.cpp
 echo "SkBitmap source;" >> ${WEBTRY_ROOT}/templates/template.cpp
 echo "{{.Code}}" >> ${WEBTRY_ROOT}/templates/template.cpp
 cd ${WEBTRY_ROOT}
 echo "Building webtry..."
 go build webtry.go
 echo "Done!"