Re: Qt6 (x11/qt6-qtbase) fails to build with gcc12 (__extendhfsf2, __truncsfhf2)

[Niclas Rosenvik <nros%netbsd.org@localhost>]

On Mon, 2 Oct 2023 21:55:21 +0200
Rhialto <rhialto%falu.nl@localhost> wrote:

> On Mon 02 Oct 2023 at 21:26:35 +0200, Rhialto wrote:
> > So why are they still undefined...
> 
> If I manually add "-lgcc" near the end of the very long link command
> line in build file
> pkgsrc/x11/qt6-qtbase/default/qtbase-everywhere-src-6.5.2/src/corelib/CMakeFiles/Core.dir/link.txt
> that link step works ok. But the question remains of course why that
> would be needed; it shouldn't.
> 
> The problem recurs later when linking lib/libQt6Gui.so.6.5.2.
> 
> The lovely long command lines from .work.log for that failed attempt
> are below; but the gcc driver should normally add -lgcc by itself,
> right?
> 

I managed to get qt6-qtbase to build with gcc12 by building gcc12 with
the option always-libgcc on. pkgsrc gcc deletes libgcc_s.so built by
gcc12 if this is not on. I guess this is so that there won't be two
libgcc_s.so on the system. NetBSD has libgcc_s in /lib and /usr/lib,
but this libgcc_s is missing __extendhfsf2 etc.

/Niclas