[Mesa-dev] [mesa build system] glsl builtin_functions.cpp change breaks entire compilation

[tom fogal]

Tobias Jakobi wrote:
> Some further testing shows that the LDFLAGS seem to cause the problem. 
> More specifically the '--as-needed' which is passed to the linker.

As needed should probably be removed from the link line when we're 
linking with g++.

Last I looked into such issues, I found that the flag is incognizant of 
static initializers, and thus is not valid for C++.  I got the 
impression it was fine for C.. but in retrospect I can't remember why, 
it's not like C lacks static variables.  Worth another googling round.

> I don't know how to fix this, but I figure it could become a problem for 
> a lot more users since more and more distros seem to use '--as-needed' 
> by default.

If that's the case, it's a distro bug; they shouldn't be adding 
--as-needed to packages unless they're certain there's no C++ code.

-tom