Bug#879212: llvm-toolchain-5.0: doesn't honour DEB_BUILD_OPTIONS=noopt

[Jakub Wilk]

Source: llvm-toolchain-5.0
Version: 1:5.0~+rc2-1

I tried rebuilding this package with DEB_BUILD_OPTIONS=noopt, but it 
didn't work: there code was still built with -O2.

-- 
Jakub Wilk