[Bug d/87866] gdc fails to compile minimal test

[ibuclaw at gdcproject dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87866

--- Comment #1 from Iain Buclaw <ibuclaw at gdcproject dot org> ---
I backported a fix from the D sources so it should no longer segfault at least.

From what I can see, it should pick up the object.d source correctly.

    -nostdinc -I /vol/gcc/src/hg/trunk/local/libphobos/libdruntime 

Unless it really isn't in the -I path.