Propertys in Ant are immutable, so you can't reset the value (with vanilla Ant - ant-contrib may let you).
Depending on what you need the system property for, though, you may be able to use <sysproperty>. Kajsa -----Original Message----- From: query [mailto:[EMAIL PROTECTED] Sent: Thursday, April 19, 2007 8:26 AM To: ant Subject: Settting environment variables Hi, I am having a set of ANT build files. I want to change "Path" and "include" environment variables only in build file. I tried the following options to reset "include" variable in the build file. <property environment="env"/> 1.<exec executable="cmd"> <env key="include" path="${new.includepath}"/> </exec> 2.<property name="${env.include}" value="${new.includepath}"/> 3.<property name="env.include" value="${new.includepath}"/> 4.<property name="env.${include}" value="${new.includepath}"/> When I tried to echo "include" variable in the same build file, it is still showing the default old settings. Is there any other way to modify the environment variables only for some instance and not for other? --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]