https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52952
--- Comment #36 from Manuel López-Ibáñez <manu at gcc dot gnu.org> --- Latest patch: https://gcc.gnu.org/ml/gcc-patches/2014-11/msg00663.html Joseph pointed out that it does not handle escape sequences. The only solution I can think of is to open the file and re-parse the string. However, it doesn't seem trivial to re-use libcpp to parse a string given as a char *. Any ideas how to achieve this or a better alternative? Escape sequences are too common to ignore in a first implementation.