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.