Trying to build RXTXSerial.dll from the open source

[HowardZ]

Hello everyone,

I am trying to rebuild the RXTXComm.jar, RXTXSerial.dll, and RXTXParallel.dll from the GNU open source code.

For those interested, SUN dropped all support for COM port I/O in java, and the RXTX project has been filling in the need. It works on Windows, Linux, and Mac.

I am trying to build it on Windows Vista using the excellent Netbeans development environment.

The source comes with procedures to rebuild it using MinGW and MinGW's make. Using this makefile, I have made a Netbeans makefile - it only works when clicking to Build-All. If I click to compile just one .c file, it has difficulties.

The most perplexing part is the $(LINK.cc) which would not work, so I commented it out and put in its place the MinGW's make statement that came with the open source code.

It would be nice to use Msys make since this is the only one that supposedly works properly with Netbeans.

Anyway, what I have does work when clicking on build-all icon. It is surprising that the Netbeans generated RXTXComm.jar and RXTXSeriall.dll are larger file sizes than those generated with the open source MinGW procedures. Even more perplexing is the RXTXParallel.dll file is considerably smaller file size. I have tested that my RXTXComm.jar and RXTXSerial.dll works ok on my vista system. I don't even have a parallel port on my vista laptop, so that one I have not tested.

I made two Netbeans projects, one for making the RXTXComm.jar file - this works well except that the jar file is larger.l The second Netbeans project is to make the two dll files. This second project is the more difficult to set up one. I have minGW and Msys installed.

Find below the makefile in Netbeans - any suggestions for improvements will be appreciated. I do not really understand the makefile and gcc options as these came from the open source code provided MinGW makefile.