Date: Fri, 20 Oct 2017 21:38:25 -0700 From: Nathan Whitehorn <nwhitehorn@freebsd.org> To: freebsd-arch@freebsd.org Subject: Re: Making C++11 a hard requirement for FreeBSD Message-ID: <5d2efe50-62c4-d1af-db45-123d813f7acb@freebsd.org> In-Reply-To: <1723616.qgAo6xlX2y@ralph.baldwin.cx> References: <CANCZdfq5=KRp4NYKsc15gyS9C7CxrBFxcKQLPwnb_0oPb15vJw@mail.gmail.com> <CANCZdfrqoHh2_knYrmNZF5d=VFt5csuFu%2BkT5XpKKnH%2B0-Xbig@mail.gmail.com> <577d3900-76f2-2c52-8ada-b8fb1fe881be@freebsd.org> <1723616.qgAo6xlX2y@ralph.baldwin.cx>
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On 10/10/17 06:49, John Baldwin wrote: [...] >>> Let's focus on #1, the largest if not the only major problem. If I build, >>> say, a ppc64 system with an external toolchain right now, it boots and runs >>> fine. But the system is completely unusable since: >>> - There are no binary packages built for PPC64, because of project policy >>> preventing the use of native build systems >>> >>> >>> System is still usable w/o packages. People can still fire up custom >>> poudrier repos. We could also change project policy. This is is a specific >>> wrinkle for powerpc64 it seems. >> How would I do that? We can't run these natively, because the system >> ships without a compiler. And we can't cross-compile, because the ports >> tree does not support that. > The base/ ports _do_ cross-compile. See /usr/ports/base/README. You have to > build a world image using the external toolchain that can then be used as a > --sysroot with the external toolchain to build binutils and gcc packages. > These packages should then be able to be installed. To be clear, you would > build a world on an amd64 host with the foo-xtoolchain-gcc toolchain, install > it to some 'rootfs' directory, then build the base/ packages on the same > amd64 host but the generated packages can be installed on the target via > pkg install. In particular, we could automate building of the base/ packages > in the cluster and publish repositories that contain just binutils and gcc. > Has anyone managed to have this work recently? GCC seems to play quite poorly with our libc++ and I haven't managed to get base/gcc to build at all despite trying for a few days. I did get base/binutils and pkg to cross-compile after some tweaks, but base/gcc just won't go. -Nathan
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