From: hughw AT scoutsys DOT com (Hugh Winkler) Subject: dllwrap, JNI, and all that 16 Dec 1998 22:47:20 -0800 Message-ID: <006801be2908$49a2dd40$0c0aa8c0.cygnus.gnu-win32@harry.scoutsys.com> Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit To: Hi all, Thanks Mumit for the bintools, which I'm just getting my first exposure to. Very glad not to have to do the five-step program to build a relocatable dll for JNI. I can *almost* automatically build some JNI code using dllwrap. The showstopper is simply that the -U (the dlltool option to prepend underscore to interface library symbols) does not apply to the actual symbols in the dll file. VC prepends the underscore, gcc does not. -U is great if you're going to link to an interface library, but no help if someone is going to call Loadlibrary on your dll, on some names they expect to have leading underscores (i.e. the JVM). Is there actually an easy way, like throw some switch on some tool, to prepend the underscore? I can easily believe I've missed something. (I know two workarounds, that are not really practical for our situation. a) supply a .def file with changed names, and b)Conditionally compile in a prepended underscore to exported symbols.) If there's no easy way I've overlooked, I'll try to supply a fix, time permitting. (We're going to use cl for the time being). Should dlltool's -U actually change the symbols exported from the dll as well? Hugh Winkler Scout Systems, Inc. - For help on using this list (especially unsubscribing), send a message to "gnu-win32-request AT cygnus DOT com" with one line of text: "help".