diff -Naur scilab-4.1.2/m4/java.m4 scilab-4.1.2.new/m4/java.m4
--- scilab-4.1.2/m4/java.m4	2006-10-24 09:22:25.000000000 -0500
+++ scilab-4.1.2.new/m4/java.m4	2008-02-08 17:54:12.000000000 -0500
@@ -17,7 +17,7 @@
 	
 	AC_MSG_CHECKING([for java headers])
 	
-	_JTOPDIR=`echo "$_ACJNI_FOLLOWED" | sed -e 's://*:/:g' -e 's:/[[^/]]*$::'`
+	_JTOPDIR=$JAVA_HOME
 	case "$host_os" in
 		darwin*)
 			_JTOPDIR=`echo "$_JTOPDIR" | sed -e 's:/[[^/]]*$::'`