[dmd-cxx] fix Issue 20113 - Cannot find source code for runtime library file 'object.d' when the path contains '~'

[ibuclaw]

Backport of #10284.

[dlang-bot]

Thanks for your pull request, @ibuclaw!

Bugzilla references

Auto-close	Bugzilla	Severity	Description
✓	20113	normal	Cannot find source code for runtime library file 'object.d' when the path contains '~'

Testing this PR locally

If you don't have a local development environment setup, you can use Digger to test this PR:

dub fetch digger
dub run digger -- build "dmd-cxx + dmd#10309"

[ibuclaw]

Should probably fix OSX builds too...

bool CTFloat::isNaN(real_t r)
{
#if __APPLE__
#if __MAC_OS_X_VERSION_MAX_ALLOWED >= 1080
    return __inline_isnanl(r);
#else
    return __inline_isnan(r);
#endif
#elif __FreeBSD__ || __OpenBSD__
    return isnan(r);
#else
    #undef isnan
    return ::isnan(r);   <-- Error line here.
#endif
}

Apparently __APPLE__ is not a recognized macro anymore?

[ibuclaw]

Apparently APPLE is not a recognized macro anymore?

Ah, no, it's not OSX, it's just clang on linux... Should be reproducible locally then.