From: "Darryl L. Pierce" <mcpierce@...>
Date: 2011-06-24T22:09:10+09:00
Subject: Re: Explicitly setting compiler to C++ in extconf.rb...

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On Fri, Jun 24, 2011 at 11:22:22AM +0900, Michael Edgar wrote:
> On Jun 23, 2011, at 10:07 PM, Darryl L. Pierce wrote:
>=20
> > On 06/23/2011 07:39 PM, Michael Edgar wrote:
> >>=20
> >> require 'mkmf'
> >> have_library('stdc++')
> >> create_makefile('laser/BasicBlock')
> >>=20
> >> That's a working extconf.rb for a gem I'm actively working on. Adding =
stdc++
> >> makes mkmf use g++ on my system.
> >=20
> > Hrm, no joy. It's still failing with the same error in mkmf.log.
>=20
>=20
> Just checked, and you're right - same thing happens to me if I insert
> a "have_header" for one of my header files. It's failing because mkmf
> is creating a file called "conftest.c" and not "conftest.cc" - changing t=
he
> name of the file makes it work. Ugh.
>=20
> It looks like a bug in mkmf.rb:407, in "cpp_command," it uses CONFTEST_C
> which ends in .c .

Ugh. So, for now, I'll have to ignore checking for the headers and just
file a bug against mkmf to support C++ header checks.

--=20
Darryl L. Pierce <mcpierce@gmail.com>
http://mcpierce.multiply.com/
"What do you care what people think, Mr. Feynman?"

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