undefined reference to `bn_is_zero'

[emk]

My builds of iron-based projects are still failing with something related to the BN_is_zero problem, despite running cargo update:

Installing Rust and Cargo
62.41s$ curl -sL https://static.rust-lang.org/dist/rust-nightly-x86_64-unknown-linux-gnu.tar.gz | tar --strip-components=1 -C ~/rust -xzf -
7.53s$ curl -sL https://static.rust-lang.org/cargo-dist/cargo-nightly-x86_64-unknown-linux-gnu.tar.gz | tar --strip-components=1 -C ~/rust -xzf -
0.01s0.01s0.13s$ rustc --version
rustc 0.12.0-nightly (dc987adfc 2014-10-04 23:42:07 +0000)
0.03s$ cargo --version
cargo 0.0.1-pre-nightly (f0762df 2014-10-03 01:57:14 +0000)
before_script
9.14s$ cargo update
    Updating git repository `https://github.com/iron/router.git`
    Updating git repository `https://github.com/iron/logger.git`
    Updating git repository `https://github.com/iron/iron.git`
    Updating git repository `https://github.com/conduit-rust/route-recognizer.rs.git`
    Updating git repository `https://github.com/servo/rust-url.git`
    Updating git repository `https://github.com/lifthrasiir/rust-encoding`
    Updating git repository `https://github.com/reem/rust-error.git`
    Updating git repository `https://github.com/reem/rust-typeable.git`
    Updating git repository `https://github.com/reem/rust-replace-map.git`
    Updating git repository `https://github.com/reem/rust-typemap.git`
    Updating git repository `https://github.com/reem/rust-phantom.git`
    Updating git repository `https://github.com/reem/rust-unsafe-any.git`
    Updating git repository `https://github.com/reem/rust-http-content-type.git`
    Updating git repository `https://github.com/sfackler/rust-phf.git`
    Updating git repository `https://github.com/chris-morgan/rust-http.git`
    Updating git repository `https://github.com/sfackler/rust-openssl.git`
    Updating git repository `https://github.com/reem/rust-plugin.git`
37.53s$ cargo build
   Compiling phantom v0.0.0 (https://github.com/reem/rust-phantom.git#deb5acfe)
   Compiling route-recognizer v0.1.0 (https://github.com/conduit-rust/route-recognizer.rs.git#9dfb3413)
   Compiling encoding v0.1.0 (https://github.com/lifthrasiir/rust-encoding#97e5a566)
   Compiling phf_mac v0.0.0 (https://github.com/sfackler/rust-phf.git#a1b50302)
   Compiling typeable v0.0.1 (https://github.com/reem/rust-typeable.git#55154e18)
   Compiling replace-map v0.0.1 (https://github.com/reem/rust-replace-map.git#140217a7)
   Compiling unsafe-any v0.1.0 (https://github.com/reem/rust-unsafe-any.git#75cff194)
   Compiling openssl v0.0.0 (https://github.com/sfackler/rust-openssl.git#40c69488)
   Compiling phf v0.0.0 (https://github.com/sfackler/rust-phf.git#a1b50302)
   Compiling error v0.0.0 (https://github.com/reem/rust-error.git#a04b3213)
   Compiling typemap v0.0.0 (https://github.com/reem/rust-typemap.git#895f26e2)
   Compiling plugin v0.0.0 (https://github.com/reem/rust-plugin.git#19b97b79)
   Compiling url v0.1.0 (https://github.com/servo/rust-url.git#55b18b79)
   Compiling http v0.1.0-pre (https://github.com/chris-morgan/rust-http.git#bd06bef0)
   Compiling generator v0.1.0 (https://github.com/reem/rust-http-content-type.git#6f656bbe)
   Compiling content_type v0.1.0 (https://github.com/reem/rust-http-content-type.git#6f656bbe)
   Compiling iron v0.0.1 (https://github.com/iron/iron.git#2cefd9a0)
   Compiling router v0.1.0 (https://github.com/iron/router.git#6911bf35)
   Compiling logger v0.1.0 (https://github.com/iron/logger.git#7ace037e)
   Compiling heroku-rust-cargo-hello v1.0.0 (file:///home/travis/build/emk/heroku-rust-cargo-hello)
error: linking with `cc` failed: exit code: 1
note: cc '-m64' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-o' '/home/travis/build/emk/heroku-rust-cargo-hello/target/hello' '/home/travis/build/emk/heroku-rust-cargo-hello/target/hello.o' '-Wl,--whole-archive' '-lmorestack' '-Wl,--no-whole-archive' '-nodefaultlibs' '-fno-lto' '-Wl,--gc-sections' '-pie' '-Wl,--as-needed' '/home/travis/build/emk/heroku-rust-cargo-hello/target/deps/librouter-6398087b87453241.rlib' '/home/travis/build/emk/heroku-rust-cargo-hello/target/deps/libroute-recognizer-e21fcedb311c4a38.rlib' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-lnative-4e7c5e5c' '/home/travis/build/emk/heroku-rust-cargo-hello/target/deps/liblogger-6a39d0e2c1e16083.rlib' '/home/travis/build/emk/heroku-rust-cargo-hello/target/deps/libiron-94e197af3c7f7b9d.rlib' '/home/travis/build/emk/heroku-rust-cargo-hello/target/deps/libcontent_type-b3fc4f01bc3dcbfb.rlib' '/home/travis/build/emk/heroku-rust-cargo-hello/target/deps/libphf-4fc01267f85abb4e.rlib' '/home/travis/build/emk/heroku-rust-cargo-hello/target/deps/liberror-e5e02eafec1ab2f1.rlib' '/home/travis/build/emk/heroku-rust-cargo-hello/target/deps/libtypeable-d0d1baca4b0d6107.rlib' '/home/travis/build/emk/heroku-rust-cargo-hello/target/deps/libreplace-map-d1de898a4eb569a5.rlib' '-L' '/home/travis/build/emk/heroku-rust-cargo-hello/target/deps' '-lgenerator-e170cac01c08bdc6' '-L' '/home/travis/build/emk/heroku-rust-cargo-hello/target/deps' '-lphf_mac-78b8694be35c3487' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-lrustc-4e7c5e5c' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-lgraphviz-4e7c5e5c' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-ltime-4e7c5e5c' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-lgetopts-4e7c5e5c' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-lflate-4e7c5e5c' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-lrustc_back-4e7c5e5c' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-lsyntax-4e7c5e5c' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-lfmt_macros-4e7c5e5c' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-ldebug-4e7c5e5c' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-larena-4e7c5e5c' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-lterm-4e7c5e5c' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-lrustc_llvm-4e7c5e5c' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-lrbml-4e7c5e5c' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-lserialize-4e7c5e5c' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-llog-4e7c5e5c' '/home/travis/build/emk/heroku-rust-cargo-hello/target/deps/libplugin-f845a6ab531c9346.rlib' '/home/travis/build/emk/heroku-rust-cargo-hello/target/deps/libtypemap-3fdac74be380d9e4.rlib' '/home/travis/build/emk/heroku-rust-cargo-hello/target/deps/libunsafe-any-411b26d39a73c121.rlib' '/home/travis/build/emk/heroku-rust-cargo-hello/target/deps/libphantom-da5bb593d3eb3a9e.rlib' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-lregex-4e7c5e5c' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-lstd-4e7c5e5c' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-lsync-4e7c5e5c' '-L' '/home/travis/rust/lib/rustlib/x86_64-unknown-linux-gnu/lib' '-lrustrt-4e7c5e5c' '-L' '/home/travis/build/emk/heroku-rust-cargo-hello/target' '-L' '/home/travis/build/emk/heroku-rust-cargo-hello/target/deps' '-L' '/home/travis/build/emk/heroku-rust-cargo-hello/target/native/http-b27c1e7938f5a5d0' '-L' '/home/travis/build/emk/heroku-rust-cargo-hello/target/native/openssl-fbe75530f7eda428' '-L' '/home/travis/build/emk/heroku-rust-cargo-hello/.rust' '-L' '/home/travis/build/emk/heroku-rust-cargo-hello' '-Wl,--whole-archive' '-Wl,-Bstatic' '-Wl,--no-whole-archive' '-Wl,-Bdynamic' '-lssl' '-lcrypto' '-lrt' '-lpthread' '-lrt' '-ldl' '-lm' '-ldl' '-lpthread' '-lgcc_s' '-lpthread' '-lc' '-lm' '-lcompiler-rt'
note: /home/travis/build/emk/heroku-rust-cargo-hello/target/deps/libgenerator-e170cac01c08bdc6.so: undefined reference to `bn_is_zero'
collect2: ld returned 1 exit status

It looks like @reem is following up at the Rust level, but in case it helps, my toy project is here.

Thank you for the lovely library!

[vhbit]

@emk check if the problem is fixed in commit above

[emk]

I've queued up a build on Rust CI. If this turns green in the next 15 minutes or so, we're good. (I may or may not be around.)

Thank you for looking into this problem!

[vhbit]

I believe it wouldn't help :-) Rust CI uses Travis and on Travis there were no problems with bn_is_zero even before this patch

[reem]

@vhbit Iron was erroring, so it should fail. Unfortunately I just simultaneously patched rust-http-content-type to not use rust-openssl. I'll reset the change and see if we can fix this.

[reem]

@vhbit Tried building with your fork, looks green! I knew I must have munged something up with linking.

[vhbit]

ok, creating PR then

[emk]

My apologies, I thought the change had already been merged.

I'll run another build in an hour or so, when I get back. Thank you, everybody!

[emk]

Still failing with errors about bn_is_zero as of 9:30am Eastern. So indirect dependencies on rust-openssl via iron aren't picking up either fix at the moment. I imagine that you both know this, already. :-)