2004-10-26 Vincent Celier <celier@gnat.com>
* prj-nmsc.adb (Language_Independent_Check): Do not forbid virtual
extension of library projects.
* prj-part.adb: If env var ADA_PROJECT_PATH is not defined, project
path defaults to ".:<prefix>/lib/gnat".
(Parse): For an extending all project, allow direct import of a project
that is virtually extended.
* prj-proc.adb (Imported_Or_Extended_Project_From): If a project with
the specified name is directly imported, return its ID. Otherwise, if
an extension of this project is imported, return the ID of the
extension.
From-SVN: r89662
