Thomas Munro <thomas.munro@xxxxxxxxx> writes: > On Wed, Dec 20, 2023 at 1:39 AM Dominique Devienne <ddevienne@xxxxxxxxx> wrote: >> Program received signal SIGSEGV, Segmentation fault. >> 0x00000000004232b8 in slash_yylex () > I think this might have to do with flex changing. Does it help if you > "make maintainer-clean"? If that doesn't fix it, please build with --enable-debug so that you can get a more detailed stack trace. regards, tom lane