gentoo-rust undefined references to git_* when compiling cargo-9999

Hey,
I just installed rust-bin-999 and tried to compile cargo-9999 from your overlay. I get the following result, no matter if dev-libs/libgit2 is installed ( I tried version 0.21.5 (stable) and 0.22.2) or not.
error: linking with `cc` failed: exit code: 1
note: "cc" "-Wl,--as-needed" "-m64" "-L" "/opt/rust-bin-999/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/cargo.o" "-o" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/cargo" "-Wl,--whole-archive" "-l" "morestack" "-Wl,--no-whole-archive" "-Wl,--gc-sections" "-pie" "-nodefaultlibs" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libgit2_curl-a9bbaf3bdf7c598a.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/libcargo-528c261914644864.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libregistry-a76c4faf8bbedd2b.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libtime-e758cbe877e9589d.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libdocopt-40f44425b0f8ac23.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libflate2-4d1fbb00be4a22dd.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libnum_cpus-676e37b6735f47f5.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libthreadpool-213781c0d8fba90b.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libfiletime-3f93a5541fe8597f.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libsemver-97eaa84569c2a87a.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libtar-1ebdf639011802e1.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libminiz_sys-d7e62e66665f9648.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libtoml-e4d393d734aaa578.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libcurl-8141f2804d7ef7aa.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libgit2-03ee595a041b0ca1.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/liburl-a4f53e129e04fc84.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libbitflags-518ea12e21428edd.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/librustc_serialize-9ef26f158d5284e0.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libmatches-68db25b520030534.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/liblibgit2_sys-8e2c644bdbba553e.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/liblibssh2_sys-7dc652acddd85de6.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libcurl_sys-dd89af55ea8cd7e5.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libopenssl_sys-5040130ff99796a0.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libglob-d67ece25280f9940.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/liblibz_sys-c145b8b5c75fd5a3.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libterm-1a85d6dfb646e607.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libstrsim-fb046b3f6ce0ea34.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libenv_logger-63352e48193fbb80.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libregex-3bea3061fd389532.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/liblog-54cf393d3c69686f.rlib" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/liblibc-2eda841eb12a3090.rlib" "/opt/rust-bin-999/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-11582ce5.rlib" "/opt/rust-bin-999/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcollections-11582ce5.rlib" "/opt/rust-bin-999/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_unicode-11582ce5.rlib" "/opt/rust-bin-999/lib/rustlib/x86_64-unknown-linux-gnu/lib/librand-11582ce5.rlib" "/opt/rust-bin-999/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-11582ce5.rlib" "/opt/rust-bin-999/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-11582ce5.rlib" "/opt/rust-bin-999/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-11582ce5.rlib" "-L" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug" "-L" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps" "-L" "/usr/lib64" "-L" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/build/libgit2-sys-8e2c644bdbba553e/out/lib" "-L" "/usr/lib64" "-L" "/usr/lib64" "-L" "/usr/lib64" "-L" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/build/miniz-sys-d7e62e66665f9648/out" "-L" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/build/num_cpus-676e37b6735f47f5/out" "-L" "/usr/lib64" "-L" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/build/openssl-sys-5040130ff99796a0/out" "-L" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/build/time-e758cbe877e9589d/out" "-L" "/opt/rust-bin-999/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-L" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/.rust/lib/x86_64-unknown-linux-gnu" "-L" "/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/lib/x86_64-unknown-linux-gnu" "-Wl,-Bstatic" "-Wl,-Bdynamic" "-l" "rt" "-l" "http_parser" "-l" "rt" "-l" "ssh2" "-l" "ssl" "-l" "dl" "-l" "z" "-l" "crypto" "-l" "dl" "-l" "z" "-l" "ssh2" "-l" "curl" "-l" "ssl" "-l" "crypto" "-l" "z" "-l" "c" "-l" "m" "-l" "dl" "-l" "pthread" "-l" "rt" "-l" "gcc_s" "-l" "pthread" "-l" "c" "-l" "m" "-l" "compiler-rt"
note: /var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_transport_register'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_transport_register'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_transport_smart'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_repository_open'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_repository_open'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_repository_init_ext'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_repository_open'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_repository_init_ext'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_repository_discover'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/flate2-0.2.7/src/crc.rs:30: error: undefined reference to 'mz_crc32'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/flate2-0.2.7/src/stream.rs:34: error: undefined reference to 'mz_deflateInit2'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/flate2-0.2.7/src/stream.rs:52: error: undefined reference to 'mz_inflateInit2'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/flate2-0.2.7/src/stream.rs:76: error: undefined reference to 'mz_inflate'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/flate2-0.2.7/src/stream.rs:120: error: undefined reference to 'mz_deflate'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/flate2-0.2.7/src/stream.rs:130: error: undefined reference to 'mz_deflateEnd'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/flate2-0.2.7/src/stream.rs:135: error: undefined reference to 'mz_inflateEnd'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/num_cpus-0.1.0/src/lib.rs:11: error: undefined reference to 'crates_io_get_num_cpus'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/error.rs:21: error: undefined reference to 'giterr_last'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_clone_init_options'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_clone'
<std macros>:137: error: undefined reference to 'git_remote_init_callbacks'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/remote.rs:341: error: undefined reference to 'git_remote_free'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/transport.rs:332: error: undefined reference to 'giterr_set_str'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/reference.rs:206: error: undefined reference to 'git_reference_free'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/buf.rs:65: error: undefined reference to 'git_buf_free'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_config_open_default'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_config_get_string'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_config_get_string_buf'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/config.rs:363: error: undefined reference to 'git_config_free'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_cred_default_new'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_cred_ssh_key_from_agent'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_cred_userpass_plaintext_new'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_cred_username_new'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/index.rs:192: error: undefined reference to 'git_index_entrycount'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/index.rs:198: error: undefined reference to 'git_index_get_byindex'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/index.rs:412: error: undefined reference to 'git_index_free'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/object.rs:19: error: undefined reference to 'git_object_id'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_object_peel'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/object.rs:117: error: undefined reference to 'git_object_free'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/oid.rs:76: error: undefined reference to 'git_oid_tostr'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/oid.rs:86: error: undefined reference to 'git_oid_equal'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/reference.rs:108: error: undefined reference to 'git_reference_target'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_remote_set_callbacks'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_remote_add_fetch'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_remote_fetch'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_revparse_single'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/repo.rs:191: error: undefined reference to 'git_repository_path'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/repo.rs:227: error: undefined reference to 'git_repository_workdir'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_remote_create_anonymous'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_reset'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_repository_head'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_submodule_foreach'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/submodule.rs:199: error: undefined reference to 'git_submodule_free'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/repo.rs:491: error: undefined reference to 'git_submodule_lookup'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_status_list_new'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_repository_index'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_repository_config'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_branch_lookup'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_object_lookup'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_reference_name_to_id'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_submodule_lookup'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/repo.rs:1174: error: undefined reference to 'git_repository_free'
<std macros>:1317: error: undefined reference to 'git_repository_init_init_options'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/status.rs:66: error: undefined reference to 'git_status_init_options'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/status.rs:242: error: undefined reference to 'git_status_byindex'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/status.rs:252: error: undefined reference to 'git_status_list_entrycount'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/status.rs:274: error: undefined reference to 'git_status_list_free'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/submodule.rs:42: error: undefined reference to 'git_submodule_url'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/submodule.rs:54: error: undefined reference to 'git_submodule_name'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/submodule.rs:61: error: undefined reference to 'git_submodule_path'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/submodule.rs:68: error: undefined reference to 'git_submodule_head_id'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_submodule_init'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/call.rs:14: error: undefined reference to 'git_submodule_open'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/lib.rs:325: error: undefined reference to 'git_libgit2_init'
/var/tmp/portage/dev-rust/cargo-9999/homedir/.cargo/registry/src/github.com-1ecc6299db9ec823/git2-0.2.11/src/lib.rs:330: error: undefined reference to 'git_libgit2_shutdown'
collect2: error: ld returned 1 exit status

error: aborting due to previous error
Could not compile `cargo`.

Caused by:
Process didn't exit successfully: `rustc src/bin/cargo.rs --crate-name cargo --crate-type bin -g --out-dir /var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug --emit=dep-info,link --target x86_64-unknown-linux-gnu -L dependency=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug -L dependency=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps --extern url=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/liburl-a4f53e129e04fc84.rlib --extern term=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libterm-1a85d6dfb646e607.rlib --extern libc=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/liblibc-2eda841eb12a3090.rlib --extern glob=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libglob-d67ece25280f9940.rlib --extern log=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/liblog-54cf393d3c69686f.rlib --extern filetime=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libfiletime-3f93a5541fe8597f.rlib --extern curl=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libcurl-8141f2804d7ef7aa.rlib --extern flate2=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libflate2-4d1fbb00be4a22dd.rlib --extern time=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libtime-e758cbe877e9589d.rlib --extern env_logger=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libenv_logger-63352e48193fbb80.rlib --extern num_cpus=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libnum_cpus-676e37b6735f47f5.rlib --extern regex=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libregex-3bea3061fd389532.rlib --extern rustc_serialize=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/librustc_serialize-9ef26f158d5284e0.rlib --extern toml=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libtoml-e4d393d734aaa578.rlib --extern libgit2_sys=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/liblibgit2_sys-8e2c644bdbba553e.rlib --extern docopt=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libdocopt-40f44425b0f8ac23.rlib --extern git2=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libgit2-03ee595a041b0ca1.rlib --extern git2_curl=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libgit2_curl-a9bbaf3bdf7c598a.rlib --extern threadpool=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libthreadpool-213781c0d8fba90b.rlib --extern registry=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libregistry-a76c4faf8bbedd2b.rlib --extern semver=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libsemver-97eaa84569c2a87a.rlib --extern tar=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/deps/libtar-1ebdf639011802e1.rlib --extern cargo=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/libcargo-528c261914644864.rlib -L native=/usr/lib64 -L native=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/build/libgit2-sys-8e2c644bdbba553e/out/lib -L native=/usr/lib64 -L native=/usr/lib64 -L native=/usr/lib64 -L native=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/build/miniz-sys-d7e62e66665f9648/out -L native=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/build/num_cpus-676e37b6735f47f5/out -L native=/usr/lib64 -L native=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/build/openssl-sys-5040130ff99796a0/out -L native=/var/tmp/portage/dev-rust/cargo-9999/work/cargo-9999/target/x86_64-unknown-linux-gnu/debug/build/time-e758cbe877e9589d/out` (exit code: 101)
Makefile:88: recipe for target 'cargo-x86_64-unknown-linux-gnu' failed
make: *** [cargo-x86_64-unknown-linux-gnu] Error 101
* ERROR: dev-rust/cargo-9999::rust failed (compile phase):
*   emake failed
Any idea what might be wrong?
Jun 13 '15 10:06 oleid
At first I didn't have it installed. Then, I tried the versions mentioned in the comment above. Same result.
Jun 13 '15 15:06 oleid
Looks like you also have some troubles with num_cpus and flate2 which has nothing to do with gitlib. Are you able to compile cargo manually?
Jun 13 '15 16:06 gentoo90
Interesting. Compiling manually works fine. Even when using options to configure and make, similar to the ones in the ebuild.
Jun 13 '15 16:06 oleid
similiar issues with cargo-ebuild, recompiled libgit2, disabled lto for it... still issue.
@oleid how did you solved your issue?
Apr 01 '19 08:04 okias
I suppose it is fixed now after libgit2 updated and separate cargo removed.
May 29 '20 10:05 o01eg