https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88953
--- Comment #2 from Jan Kossmann <Jan.Kossmann at hpi dot de> --- Created attachment 45483 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45483&action=edit Preprocessed file and minimal cpp example This archive contains the preprocessed *.ii file, a .cpp and .hpp file. I was unable to reduce the file size of the *.ii file below 1000 KB because I had to include a boost header. However, the .cpp and .hpp files are combined only 10 LOC.