2004-10-04  Vincent Celier  <celier@gnat.com>

	* mlib-tgt-tru64.adb, mlib-tgt-aix.adb, mlib-tgt-irix.adb,
	mlib-tgt-hpux.adb, mlib-tgt-linux.adb, mlib-tgt-solaris.adb,
	mlib-tgt-vms-alpha.adb, mlib-tgt-vms-ia64.adb, mlib-tgt-mingw.adb,
	mlib-tgt-vxworks.adb, mlib-tgt.adb (Build_Dynamic_Library): New
	parameter Options_2.

	* mlib-prj.ads, mlib-prj.adb (Build_Library): Call
	Build_Dynamic_Library with an empty Options_2.

	* mlib-utl.ads, mlib-utl.adb (Gcc): Parameter Options_2 has no
	default anymore.

	* makegpr.adb (Get_Imported_Directories.add): Remove trailing
	directory separator, if any.
	(Gprmake): Do not allow mains on the command line for library projects.
	Do not attempt to link when the project is a library project.
	(Library_Opts): New table to store Library_Options.
	(Build_Library): If Library_Options is specified, pass these options
	when building a shared library.

From-SVN: r88490