Hi, A long time ago, Per added USE_MAPPED_LOCATION, but a full switch-over was held up by (fixable) PCH issues and by Ada maintainers who expect problems for GNAT if USE_MAPPED_LOCATION becomes the default.
The latest discussions I could find about this concluded that it should work for Ada too (http://gcc.gnu.org/ml/gcc/2004-10/msg00251.html). But when Per posted a patch to make it work, it was rejected anyway by GNAT maintainers because "we do not want to create a strong dependency between the Ada front-end and one particular GCC back-end notion of linemap/source location" (http://gcc.gnu.org/ml/gcc/2005-03/msg00924.html). Then, nothing happened... So now we have a half-completed conversion to USE_MAPPED_LOCATION which is currently broken (doesn't bootstrap for me with --enable-mapped-locations). Question: should USE_MAPPED_LOCATION be taken out again now? Or is anyone going to work on it to complete this project? Gr. Steven
