[erlang-questions] creating linked in drivers for Erlang on OSX using gcc

Matt Stancliff <>
Mon Mar 17 23:41:17 CET 2008


On Mar 17, 2008, at 03:52, Tim Watson wrote:

> We'd tried with -bundle and -fno-common previously and it didn't work.
> Finally, my co-conspiritor tried renaming the output files to .so
> instead of .dylib and guess what!? It works.
>
> Thanks for your help. I'd love to know why the file extension alone
> causes a problem though.

   If you look at the Erlang source code, you'll find .so is the
hardcoded extension:
#define FILE_EXT     ".so"    /* extension appended to the filename */
in
erts/emulator/drivers/unix/unix_ddll_drv.c

   Also, there is a good explanation of .dylib versus .bundle  
versus .so at:
http://www.finkproject.org/doc/porting/shared.php


-Matt
-- 
Matt Stancliff                    San Jose, CA
AIM: seijimr              iPhone: 678-591-9337
"The best way to predict the future is to invent it." --Alan Kay




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