BSD Config

[Joakim]

On Monday, 11 November 2013 at 18:02:18 UTC, Tyro[17] wrote:
> Reason... I had every intention of volunteering to become the 
> so called build master for DMD. I thought it a bit presumptuous 
> to do such a thing without actually knowing how to build the 
> compiler on the supported platforms. I'm using DragonFlyBSD but 
> as far as I know it is 100% source/binary compatible with 
> FreeBSD.
As Walter said in that thread, you don't have to build everything 
yourself if you're the build master.  You're just responsible for 
the end product, which may simply mean prodding those responsible 
for the OS builds that you're unfamiliar with 
(http://forum.dlang.org/thread/l5ec4p$18p2$1@digitalmars.com#post-l5edpl:241a8i:241:40digitalmars.com).

DragonFly forked from FreeBSD 4 and the dmd2 FreeBSD port doesn't 
compile on anything less than FreeBSD 8.  Also, the dmd codebase 
hardcodes for FreeBSD, so even if some source would compile on 
DragonFly also, it won't until you add in the DragonFly name into 
the all the appropriate ifdefs.

> Either way, I've progressed well beyond this point. My current 
> problem is there are a number of undefined references to 
> Port::'et al' in the following files (list abbreviated to 
> remove eliminate all duplicates):
>
>     lexer.c: Port::strtold(char const*, char**)
>     lexer.c: Port::strtod(char const*, char**)
>     lexer.c: Port::strtof(char const*, char**)
>
>     mars.c: browse(char const*)
>
>     mtype.c: Port::snan
>     mtype.c: Port::ldbl_infinity
>     mtype.c: Port::ldbl_nan
>     mtype.c: Port::ldbl_max
>
>     blockopt.c: util_progress()
>
>     cgelem.c: util_progress()
>
>     constfold.c: Port::fmodl(long double, long double)
>     constfold.c: Port::ldbl_nan
>     constfold.c: Port::isNan(long double)
>
>     e2ir.c: Port::isSignallingNan(long double)
>
>     expression.c: Port::isNan(long double)
>     expression.c: Port::fequal(long double, long double)
>     expression.c: Port::strtold(char const*, char**)
>     expression.c: Port::isInfinity(double)
>
>     go.c: util_progress()
>
>     inifile.c: Port::strupr(char*)
>     inifile.c: Port::memicmp(char const*, char const* int)
>
>     doc.c: Port::memicmp(char const*, char const* int)
>
>     ctfeexpr.c: Port::isNan(long double)

This is because DragonFly is not included in the ifdefs.  Look at 
dmd2/root/port.c.  You'll see that all these Port::* functions 
are defined specifically for FreeBSD and the other supported 
platforms but DragonFly isn't mentioned anywhere.  You have to go 
through and add DragonFly into all the appropriate source files 
for it to work on DragonFly, not just for dmd but especially in 
druntime and a little bit in Phobos too.  It might make sense to 
add a general BSD define, but then you'll have to test that on 
all the other BSDs also.

In any case, none of this is required to be build master, as dmd 
only supports FreeBSD officially and that already works.

> I could start over with FreeBSD now that I know what the 
> problem with that system was. But after installing, configuring 
> and deleting three flavors of BSD for as many times as I did 
> starting on Wednesday of last week, I have no desire to do it 
> again. At least not right now.

If you are interested in volunteering for build master, none of 
this was necessary, so I wouldn't let it put you off.  I suggest 
you talk to Walter or Brad about what knowledge is required to do 
that job and figure out if you fit the bill.  You will not have 
to do any of the above porting work as build master, simply keep 
the trains running on time AFAIK. :)