https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66214
--- Comment #22 from Guille <guille at cal dot berkeley.edu> --- For what it's worth, I just checked again openssl-1.0.2d builds fine with 'gcc 6.0.0 20151108' on OSX 10.9.5. Checked it is running the right gcc (both with and without '-g'), configured with 'darwin-i386-cc' and 'darwin64-x86_64-cc'. I wasn't able to break it. (In reply to Magnus Fromreide from comment #21) > Odd. I have just tried with a freshly built gcc and openssl-1.0.2d and the > build still fails on line 351 (the definition of struct bn_gencb_st) > On the other hand, I am running x86_64-linux, not osx.