Arch Linux

I tried to email the gcc maintainer from two emails but arch linux mail server thought I was spamming :)

Anyway, llvm fails to compile with gcc7.

/home/hussam/cache/llvm/src/llvm-
4.0.0.src/tools/lldb/include/lldb/Utility/TaskPool.h:122:12: error:
‘bind’ is not a member of ‘std’
std::bind(std::forward<F>(f), std::forward<Args>(args)...));


I added #include <functional> to
/home/hussam/cache/llvm/src/llvm-
4.0.0.src/tools/lldb/source/Utility/TaskPool.cpp
before
#include "lldb/Utility/TaskPool.h"
which fixed the build error.

They made the headers a bit more independent in gcc7 if I understand
correctly.
In case you end up needing to rebuild llvm after gcc7 goes to core, this may help.