Hello ZMQers,
I am starting a new job where we use Rust as the main language.
I am preparing myself by learning Rust the language and I would like to
write some ZMQ sample code using it.
I checked the website and there are lots of examples but there is not a
starting guide.
The only hint is to add the string "zmq = "0.9" under "[Dependencies]" in
the projects Cargo.toml file to get access to ZMQ libraries.
I installed Rust on a Windows machine.
After successfully executing "cargo new rust-zmq-hello-world" which creates
a a project of this name which compiles and runs fine like this:
PS C:\Users\opedroso\rust-zmq-hello-world> cargo check
Checking rust-zmq-hello-world v0.1.0
(C:\Users\opedroso\rust-zmq-hello-world)
Finished dev [unoptimized + debuginfo] target(s) in 1.57s
I then added the string above to my Cargo.toml project file. No other
changes.
After that when I execute "cargo check" or "cargo run" on this project
directory, I get this error:
PS C:\Users\opedroso\rust-zmq-hello-world> cargo check
Blocking waiting for file lock on package cache
Updating crates.io index
Blocking waiting for file lock on package cache
Blocking waiting for file lock on package cache
Compiling pkg-config v0.3.19
Compiling error-chain v0.10.0
Compiling toml v0.2.1
Compiling libc v0.2.94
Compiling bitflags v1.2.1
Compiling log v0.4.14
Compiling zmq v0.9.2
Checking cfg-if v1.0.0
Compiling metadeps v1.1.2
Compiling zmq-sys v0.11.0
error: failed to run custom build command for `zmq-sys v0.11.0`
Caused by:
process didn't exit successfully:
`C:\Users\opedroso\rust-zmq-hello-world\target\debug\build\zmq-sys-7f0b989f3761c178\build-script-main`
(exit code: 101)
--- stdout
cargo:rerun-if-env-changed=LIBZMQ_NO_PKG_CONFIG
cargo:rerun-if-env-changed=PKG_CONFIG
cargo:rerun-if-env-changed=LIBZMQ_STATIC
cargo:rerun-if-env-changed=LIBZMQ_DYNAMIC
cargo:rerun-if-env-changed=PKG_CONFIG_ALL_STATIC
cargo:rerun-if-env-changed=PKG_CONFIG_ALL_DYNAMIC
cargo:rerun-if-env-changed=PKG_CONFIG_PATH_x86_64-pc-windows-msvc
cargo:rerun-if-env-changed=PKG_CONFIG_PATH_x86_64_pc_windows_msvc
cargo:rerun-if-env-changed=HOST_PKG_CONFIG_PATH
cargo:rerun-if-env-changed=PKG_CONFIG_PATH
cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR_x86_64-pc-windows-msvc
cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR_x86_64_pc_windows_msvc
cargo:rerun-if-env-changed=HOST_PKG_CONFIG_LIBDIR
cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR
cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_x86_64-pc-windows-msvc
cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_x86_64_pc_windows_msvc
cargo:rerun-if-env-changed=HOST_PKG_CONFIG_SYSROOT_DIR
cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR
--- stderr
thread 'main' panicked at 'Unable to locate libzmq:
Failed to run `"pkg-config" "--libs" "--cflags" "libzmq" "libzmq >=
4.1"`: The system cannot find the file specified. (os error 2)',
C:\Users\opedroso\.cargo\registry\src\github.com-1ecc6299db9ec823\zmq-sys-0.11.0\build\pkg_config.rs:26
:17
note: run with `RUST_BACKTRACE=1` environment variable to display a
backtrace
Appreciate any pointers on passing this hurdle.
Best regards,
Osiris Pedroso
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