[PATCH] Fix optional variables in libargp
Fri Feb 18 13:30:05 GMT 2022
> I have successfully tested it on i386. Really, just remove PREFIX
> completely and it's okay. GetProcAddress() appears to be "clever" and adds
> the leading underscope by itself on i386. I don't know what you did wrong
> and why you could not reproduce the solution.
> However, i have one idea. After patching libargp you need to recompile your
> test case. Because it needs to pick up __declspec(dllexport).
Yes, I recompiled my example after rebuilding and reinstalling libargp. It
still doesn't work. I even rebooted too, to make sure I was using the
newly installed cygargp-0.dll and not a cached version.
I don't know why this should work for you, and not for me. I'm attaching
here the revised patch of yours with PREFIX removed, and the argp-ex2.c
source file that I'm building. Using this patch, I rebuild and reinstall
libargp. Then I get
$ gcc -o argp-ex2 argp-ex2.c -largp
$ ./argp-ex2.exe --help
Usage: argp-ex2 [OPTION...]
Argp example #2 -- a pretty minimal program using argp
-?, --help give this help list
--usage give a short usage message
Note there's no --version option or bug reporting email address. Do you
get a different result?
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