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#! /bin/sh
### The Nice compiler
###
### Copyright 2006 Daniel Bonniot
### The Java Virtual Machine can be specified in the JAVA environment variable.
### Arguments prefixed by -J will be passed to the JVM.
## Locating Nice home
find_home()
{
PRG="$0"
# Resolve symlinks.
while [ -h "$PRG" ]; do
lsResult=`ls -ld "$PRG"`
# According to linux expr, ^ is implicit
# at the beginning of the second string and must be omitted
link=`expr "$lsResult" : '.*-> \(.*\)$'`
if expr "$link" : '/.*' > /dev/null; then
PRG="$link"
else
PRG="`dirname $PRG`/$link"
fi
done
APPHOME=`expr "$PRG" : '\(.*\)/bin'`
if [ -z "${APPHOME}" ];
then APPHOME=`dirname "$PRG"`/..
fi
}
## Parsing special command line arguments
java=${JAVA-java -Xms32M}
scriptName="$0"
progname=`basename $scriptName`
experimental=false
while true; do
case "x$1" in
x-J*)
java="${java} `expr substr \"$1\" 3 1000`";;
x-e)
experimental=true ;;
*) break;;
esac
shift
done
if [ -z "$NICEC_JAR" ]; then
find_home "$scriptName"
NICEC_JAR=${APPHOME}/share/java/nice.jar
fi
# Having a trailing ":" at the end of CLASSPATH seems to act as ":." on some platforms.
# We don't want that by default (if CLASSPATH is empty).
if [ -z "${CLASSPATH}" ]; then
CLASSPATH=${NICEC_JAR}
else
CLASSPATH=${NICEC_JAR}:${CLASSPATH}
fi
if [ $experimental = true ]; then
CLASSPATH=${APPHOME}/classes:${APPHOME}/classes.old:${CLASSPATH}
fi
export CLASSPATH
case $progname in
nicedoc) class=nice.tools.doc.dispatch ;;
niceunit) class=nice.tools.unit.console.dispatch ;;
nicec) class=nice.tools.compiler.console.dispatch
system_args="--runtime=${NICEC_JAR}"
gcj="`which gcj 2>/dev/null`"
# Check the string found is really a file
# This is a work-around for a bug in OS X:
# `which gcj` returns 0 (success) and prints "no gcj in $PATH"
if [ -f "$gcj" ]; then
system_args="${system_args} --native-compiler=${gcj}"
fi
esac
# Certain JVMs seem to exit by throwing SIGHUP, thus replacing the exit code
# with 129.
# This happens only when running inside Emacs with Sun's 1.4.2_04-b05.
trap "" HUP
exec ${java} $class ${system_args} "$@"
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