https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82686
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |documentation Status|UNCONFIRMED |NEW Last reconfirmed| |2017-10-24 CC| |doko at gcc dot gnu.org Component|bootstrap |web Ever confirmed|0 |1 --- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- --enable-objc-gc requires you to provide boehm-gc yourself now. Quoting the installation instructions: @item --enable-objc-gc Specify that an additional variant of the GNU Objective-C runtime library is built, using an external build of the Boehm-Demers-Weiser garbage collector (@uref{http://www.hboehm.info/gc/}). This library needs to be available for each multilib variant, unless configured with @option{--enable-objc-gc=@samp{auto}} in which case the build of the additional runtime library is skipped when not available and the build continues. This change should have been mentioned in gcc-7/changes.html but it doesn't seem to be. Otherwise it's behaving as expected (thus not a bug). Matthias, can you amend changes.html?