bug#30756: gcc7 doesn't find stdlib.h

[Ludovic Courtès]

Mark H Weaver <address@hidden> skribis:

> On my own private branch, I worked around this problem by adding
> "-idirafter <LIBC>/include" to CXXFLAGS, but of course it's not a proper
> fix.  My workaround happens to be in Savannah on the
> 'reproduce-bug-29774' branch:
>
>   
> https://git.savannah.gnu.org/cgit/guix.git/commit/?h=reproduce-bug-29774&id=87022e2666c5e68e865eb160a4bd8e9cdcc1a955

Perhaps we could achieve the same effect by adding “-idirafter
LIBC/include” to the default spec file, under ‘cpp_options’?
(We’d achieve that by modifying the value of ‘cpp_options’ in
gcc/gcc.c.)

I suppose that would fix the include_next issue that Giel describes?

Ludo’.