-fonly causes GDC to crash

[Gregor Richards]

Jarrett Billingsley wrote:
> In an attempt to get MiniD to compile under the new GDC 0.20, I found out 
> about the -fonly flag from DSSS.  It's what DSSS uses to "resolve circular 
> dependencies."
> 
> Here's the thing -- I have no idea what this flag does.  I can't find 
> documentation for it anywhere.  I did "gdc -v --help" and -fonly doesn't 
> appear anywhere in the output.
> 
> This is the only way I have ever heard of anyone successfully compiling 
> MiniD using GDC short of combining the two files which mutually import one 
> another.
> 
> All I can get it to do is to give me an error.  Even in the simplest 
> possible case:
> 
> gdc -fonly=test.d
> 
> I get the error:
> 
> Assertion failed: an_output_module, file 
> ../../gcc-3.4.2-20040916-1/gcc/d/d-lang
> .cc, line 907
> 
> This application has requested the Runtime to terminate it in an unusual 
> way.
> Please contact the application's support team for more information.
> dtest.d:0: internal compiler error: Aborted
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://www.mingw.org/bugs.shtml> for instructions.
> 
> Did this appear in 0.20?  Am I using it wrong? 
> 
> 

-fonly is only documented in that it's used from the gdmd wrapper.

Basically: gdc -c <EVERY .d file> <-fonly=the .d file you want to compile>

Otherwise it will only parse one at a time. It's ... weird.

  - Gregor Richards