James, being quite honest, it will be difficult for you to toggle difficulty by going to older versions. Likely your best bet if you really want to stay with the GNU Go engine, would be to toy around with some of configurations that are also exposed (which level in some cases just defines a preset for) here: https://www.gnu.org/software/gnugo/gnugo_3.html#SEC31 (see section Other options affecting strength and speed)
Best regards, On Fri, Jul 21, 2023 at 2:55 PM James Dempsey <james.e.demp...@gmail.com> wrote: > Thanks Luis, I replaced `-lang-c89` with `-std=c90` and that let me > compile successfully. > > I wanted to try compiling a weaker version :). Even with setting `--level` > for 3.8 I see no real difference in strength/rank. > > On Fri, Jul 21, 2023 at 4:47 PM Luis Felipe Strano Moraes < > luis.str...@gmail.com> wrote: > >> James, >> >> is there any reason why you are trying to build even older versions? >> >> The error there is that that specific compiler flag is not valid for this >> version of GCC. I'd guess you would have to look at how to switch it for >> something else to see if it would still build, this seems to be implying it >> should be using the C89 standard, which you can do in different ways now: >> https://gcc.gnu.org/onlinedocs/gcc/Standards.html >> "-ansi, -std=c90 or -std=iso9899:1990" >> >> I'm trying to chat with folks from GNU to see if we can sort out making a >> new release of GNU Go to at the very least solve some compilation issues >> and make it build again, hopefully have something happen soon on it. >> >> Best regards, >> >> >> On Fri, Jul 21, 2023 at 6:08 AM James Dempsey <james.e.demp...@gmail.com> >> wrote: >> >>> Hello, >>> >>> I'm experiencing another compilation issue, this time for GNU Go 2.6 on >>> Debian GNU/Linux 11 (bullseye). >>> >>> gcc is >>> >>> gcc (Debian 10.2.1-6) 10.2.1 20210110 >>> >>> >>> Error is: >>> >>> gcc -DHAVE_CONFIG_H -I. -I. -I.. -I../engine -I../interface -g -O2 >>>> -Wall -W -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wcast-align >>>> -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes >>>> -Wmissing-declarations -Wp,-lang-c89 -c sgf.c >>>> cc1: error: command-line option ‘-lang-c89’ is valid for the driver but >>>> not for C >>>> make[2]: *** [Makefile:155: sgf.o] Error 1 >>>> make[1]: *** [Makefile:158: all-recursive] Error 1 >>>> make: *** [Makefile:306: all-recursive-am] Error 2 >>> >>> >>> One again, not a C programmer and couldn't exactly make sense of the >>> answers I had searched for. Any help would be appreciated. >>> >>> Thank you. >>> _______________________________________________ >>> gnugo-devel mailing list >>> gnugo-devel@gnu.org >>> https://lists.gnu.org/mailman/listinfo/gnugo-devel >>> >> >> >> -- >> Luís Felipe Strano Moraes >> _______________________________________________ >> gnugo-devel mailing list >> gnugo-devel@gnu.org >> https://lists.gnu.org/mailman/listinfo/gnugo-devel >> > _______________________________________________ > gnugo-devel mailing list > gnugo-devel@gnu.org > https://lists.gnu.org/mailman/listinfo/gnugo-devel > -- Luís Felipe Strano Moraes
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