Re: C++ conversion status update

Pedro Alves
2016-01-20T11:10:26Z

On 01/19/2016 07:00 PM, John Baldwin wrote:
> On Monday, December 14, 2015 07:09:08 PM Pedro Alves wrote:
>> On 12/14/2015 02:40 PM, Yao Qi wrote:
>> Meanwhile, I tried a few BSD hosts on the compile farm and
>> wrote a few patches:
>>
>> https://github.com/palves/gdb/commits/palves/cxx-conversion-netbsd
>>
>> but haven't had a moment yet to drive them to completion. I probably should sync
>> up with Simon though, as I think I may be duplicating work he's done already.
>
> I started doing some test builds on FreeBSD with C++ today and ran into one
> unexpected thing that I'm not sure how to fix.

Thanks!

>
> I build gdb from git on my own for testing, but the gdb package for FreeBSD
> users is built from FreeBSD's ports framework. The framework sets default
> CFLAGS / CXXFLAGS values for the ports it builds (and each port can
> override or adjust those as needed). However, gdb uses CFLAGS instead of
> CXXFLAGS when building with C++. The default flags in FreeBSD's ports
> infrastructure include "-std=gnu89" in the default CFLAGS (but not in
> CXXFLAGS since it is a C-only flag). The CXXFLAGS set in the environment
> when ./configure was run do not appear to be honored in the generated
> gdb/Makefile and also don't appear to be used during the build of gdb
> itself.

Indeed, thanks for noticing this. I've sent a patch now:
https://sourceware.org/ml/gdb-patches/2016-01/msg00469.html

I've also pushed it to:
git@github.com:palves/gdb.git palves/cxx-conversion-attempt-part-2-no-fpermissive

(note there are a few more wip/pending C++ patches on that branch)

Could you give it a try?

Thanks,
Pedro Alves