games-strategy/widelands uses its own cflags to compile. Here's an example: g++ -pipe -Wall -I/usr/include/SDL -D_REENTRANT -finline-functions -ffast-math -funroll-loops -funroll-all-loops -fexpensive-optimizations -O3 -DNDEBUG -Isrc -Isrc/ui/ui_fs_menus -Isrc/ui/ui_basic -Isrc/editor -Isrc/editor/ui_menus -Isrc/editor/tools -MMD -MP -MF src/native-release/main.o.d -c -o src/native-release/main.o src/main.cc The comments in the Makefile mention that -fomit-frame-pointers breaks exceptions so I suppose flag-o-matic should filter it out before appending the user CFLAGS to the ones used to compile. Never used flag-o-matic or even eclasses before and I don't quite have time ATM to learn how so I'll leave it in the hands of you devs for now and possibly post a couple line patch in the future if you guys don't get around to this for a while.
Thanks, fixed