On Sat, May 25, 2013 at 10:59 AM, Zoltán Tóth <zotw1980@xxxxxxxxx> wrote: > But that needs one to alter the g++ installation right? That is why it > is called "configuration"? > > I would like to provide my c++ source code with a make-file that > specifies sjlj EH, because I know it contains many 'throws', so it > needs cheap handling of exceptions. I may not be able to convince > users of my program to alter their g++ installation just in order to > compile my program. > > I guess it should be technically possible, as GNAT provides this option: > http://gcc.gnu.org/onlinedocs/gcc-4.6.4/gnat_ugn_unw/Exception-Handling-Control.html > But I could not find such (run-time) option for g++. Yes, it is technically possible. But, yes, there is no command line option for it. You could add one. In current mainline see default_except_unwind_info in gcc/common/common-targhooks.c. Ian
