From mboxrd@z Thu Jan 1 00:00:00 1970 From: ng0 Subject: Re: rust: cargo build-system: how to handle libraries Date: Wed, 28 Dec 2016 09:24:22 +0000 Message-ID: <87eg0ss8xl.fsf@wasp.i-did-not-set--mail-host-address--so-tickle-me> References: <8760m5c4dv.fsf@wasp.i-did-not-set--mail-host-address--so-tickle-me> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:36894) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cMASw-0005dS-II for guix-devel@gnu.org; Wed, 28 Dec 2016 04:24:11 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cMASt-0000hq-6T for guix-devel@gnu.org; Wed, 28 Dec 2016 04:24:10 -0500 Received: from aibo.runbox.com ([91.220.196.211]:35414) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cMASt-0000he-05 for guix-devel@gnu.org; Wed, 28 Dec 2016 04:24:07 -0500 In-Reply-To: List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org Sender: "Guix-devel" To: David Craven Cc: guix-devel@gnu.org David Craven writes: >> We run (or this is the default) cargo with `--bin`, which is >> necessary for everything which needs to be compiled and features >> a Cargo.toml. > > All crates have a Cargo.toml file. The interesting crates are the ones with > a Cargo.lock file. > >> To "build" libraries, we have to explicitly tell cargo to not >> run/build/whatever with --bin ? > > Building libraries is currently not very useful at the moment, since they are > not meant to be libraries in the C sense, but in the sense that it's a > collection > of source code that can be reused in a rust project. One can create a library > in the C sense, but most crates do not do this and are not intended to be abi > compatible with C. > >> Or do I have to interprete what I read a while ago "we just need >> to copy the libraries to the store" as literally "if we encounter >> no Cargo.toml, let's copy everything to the store as is"? > > If we encounter no Cargo.lock file it generally means the above. > Thanks for your answer. But, ouch... note to self, packaging while hanging out with other people to watch streamed talks sometimes does not work out. The actual failure is different, the build system (currently) expects a Cargo.toml everywhere, and the folder `libc-test' doesn't seem to have one, breaking the build phase. phase `unpack' succeeded after 0.1 seconds starting phase `patch-usr-bin-file' phase `patch-usr-bin-file' succeeded after 0.0 seconds starting phase `patch-source-shebangs' patch-shebang: ./ci/docker/arm-linux-androideabi/accept-licenses.sh: warning: no binary for interpreter `expect' found in $PATH patch-shebang: ./ci/docker/arm-linux-androideabi/install-ndk.sh: changing `/bin/sh' to `/gnu/store/qkw4zrwfybxww8f56nkb6hggxambk89b-bash-4.4.0/bin/sh' patch-shebang: ./ci/docker/arm-linux-androideabi/install-sdk.sh: changing `/bin/sh' to `/gnu/store/qkw4zrwfybxww8f56nkb6hggxambk89b-bash-4.4.0/bin/sh' patch-shebang: ./ci/dox.sh: changing `/bin/sh' to `/gnu/store/qkw4zrwfybxww8f56nkb6hggxambk89b-bash-4.4.0/bin/sh' patch-shebang: ./ci/run.sh: changing `/bin/sh' to `/gnu/store/qkw4zrwfybxww8f56nkb6hggxambk89b-bash-4.4.0/bin/sh' phase `patch-source-shebangs' succeeded after 0.0 seconds starting phase `configure' phase `configure' succeeded after 0.0 seconds starting phase `patch-generated-file-shebangs' patch-shebang: ./ci/docker/arm-linux-androideabi/accept-licenses.sh: warning: no binary for interpreter `expect' found in $PATH phase `patch-generated-file-shebangs' succeeded after 0.0 seconds starting phase `build' error: failed to read `/tmp/guix-build-rust-libc-0.2.18.drv-0/libc-0.2.18/libc-test/Cargo.toml` Caused by: No such file or directory (os error 2) phase `build' failed after 0.5 seconds builder for `/gnu/store/wcn4kyhfmp6pi8kdpssdc3k90hkwwhrp-rust-libc-0.2.18.drv' failed with exit code 1 @ build-failed /gnu/store/wcn4kyhfmp6pi8kdpssdc3k90hkwwhrp-rust-libc-0.2.18.drv - 1 builder for `/gnu/store/wcn4kyhfmp6pi8kdpssdc3k90hkwwhrp-rust-libc-0.2.18.drv' failed with exit code 1 guix build: error: build failed: build of `/gnu/store/wcn4kyhfmp6pi8kdpssdc3k90hkwwhrp-rust-libc-0.2.18.drv' failed -- ♥Ⓐ ng0 PGP keys and more: https://n0is.noblogs.org/ http://ng0.chaosnet.org