Sorry, i found bug https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94761 so I'll continue there tomorrow. On Fri, 16 Oct 2020, 11:39 pm William ML Leslie, < william.leslie.ttg@xxxxxxxxx> wrote: > Greetings, > > Please keep me CC'd as I'm not subscribed. > > I've been trying to build a cross compilation toolchain (for a new OS) > and ran into a confusing error while building gcc 10.2.0. While > building libgcc, it fails running libgcc/config.host as it gets passed > my target instead of the actual host. I traced this back to the root > Makefile.in, for which the `configure-target-libgcc` rule ends with: > > CONFIG_SITE=no-such-file $(SHELL) \ > $$s/$$module_srcdir/configure \ > --srcdir=$${topdir}/$$module_srcdir \ > $(TARGET_CONFIGARGS) --build=${build_alias} --host=${target_alias} \ > --target=${target_alias} \ > || exit 1 > > This is probably someone trying to be helpful when building a Canadian > Cross (host == target), however there is already a host_alias variable > defined at the very top of `Makefile.in`. When using a traditional > cross compiler, the host is equal to the build machine; but the > makefile ignores this case. > > Have I missed something, or should I send a patch for this? > > Snippet of make output where I hit this: > > Checking multilib configuration for libgcc... > mkdir -p -- i386-unknown-capros/libgcc > Configuring in i386-unknown-capros/libgcc > ... > checking for target glibc version... 0.0 > *** Configuration i386-unknown-capros not supported > Makefile:12629: recipe for target 'configure-target-libgcc' failed > make[1]: *** [configure-target-libgcc] Error 1 > make[1]: Leaving directory > '/extra/wleslie/xenv2/build/gcc-10.2.0/build-capros' > Makefile:954: recipe for target 'all' failed > make: *** [all] Error 2 > > -- > William Leslie > > Q: What is your boss's password? > A: "Authentication", clearly > > Notice: > Likely much of this email is, by the nature of copyright, covered > under copyright law. You absolutely MAY reproduce any part of it in > accordance with the copyright law of the nation you are reading this > in. Any attempt to DENY YOU THOSE RIGHTS would be illegal without > prior contractual agreement. >
