One simple way to do it is: <task name="check_conditions"> <condition property="both_os" value="true"><and><equals arg1="LINUX" arg2="1"/><equals arg1="WINDOWS" arg2="1"/></and></condition> </task>
<task name="fail_on_both_os" if="both_os"> <fail message="Bad arguments- Both LINUX and WINDOWS are set"/> </task> <task name="starthere" depends="check_conditions,fail_on_both_os"> do stuff </task> However there are better ways to do what you're doing. Check out the property os.name for example. Cheers -Geoff -----Original Message----- From: Dmitry Trunikov [mailto:[EMAIL PROTECTED]] Sent: 21 June 2002 11:02 AM To: [EMAIL PROTECTED] Subject: conditional compilation 2 Hi ALL! I checked mail archive but didn't find answer for my question. My problem is following. I have java application that is built by ant. Application is OS depended therefore I pass target OS as build property: ant -DLINUX=1 or ant -DWINDOWS=1. I would like to add to build.xml some code that can does validation of input properties for mutual exclusion, i.e. command for build: ant -DLINUX=1 -DWINDOWS=1 is not valid. Thanx. -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
