Building Cmm with -g3 is broken
When compiling .cmm
sources with --enable-debug-info=3
Cabal will invoke GHC with -optc-g3
to GHC. GHC then passes this to the C compiler when preprocessing the source. This is problematic since cpp
retains #define
directives in its output when invoked with -g3
, which confuses the C-- lexer.
I think the best way to fix this is to prevent Cabal
from passing -optc-g3
to GHC, although I'm not entirely sure.