[ros-diffs] [hyperion] 38784: modified tools/rbuild/backend/mingw/modulehandler.cpp Don't precompile headers with g++: g++ is stupid and, ironically, will precompile .h headers but not .hpp headers (it will mistake them for linker input files). Always use gcc instead Don't let gcc guess the language of the header, either: we detect "C++ modules" automatically in rbuild, use that for consistency