Build fails on MacOS

[tomplex]

Hey all,

I'm pretty new to Rust so please forgive me if there's something simple I'm missing.

I'm trying to run the example in the docs with a shapefile I have locally, but the build fails, suggesting that it can't find GDAL.

Here's the error:

$ cargo build
   Compiling gdal-sys v0.3.0
   Compiling thiserror-impl v1.0.22
error: failed to run custom build command for `gdal-sys v0.3.0`

Caused by:
  process didn't exit successfully: `/Users/tom/dev/rust/geocsv/target/debug/build/gdal-sys-be9ea9545f8d6e9b/build-script-build` (exit code: 101)
--- stdout
cargo:rerun-if-env-changed=GDAL_STATIC
cargo:rerun-if-env-changed=GDAL_DYNAMIC
cargo:rerun-if-env-changed=GDAL_INCLUDE_DIR
cargo:rerun-if-env-changed=GDAL_LIB_DIR
cargo:rerun-if-env-changed=GDAL_HOME
cargo:rerun-if-env-changed=GDAL_VERSION
cargo:rerun-if-env-changed=GDAL_NO_PKG_CONFIG
cargo:rerun-if-env-changed=PKG_CONFIG
cargo:rerun-if-env-changed=PKG_CONFIG_PATH_x86_64-apple-darwin
cargo:rerun-if-env-changed=PKG_CONFIG_PATH_x86_64_apple_darwin
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-apple-darwin
cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR_x86_64_apple_darwin
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-apple-darwin
cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_x86_64_apple_darwin
cargo:rerun-if-env-changed=HOST_PKG_CONFIG_SYSROOT_DIR
cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR

--- stderr
thread 'main' panicked at 'No GDAL version detected', /Users/tom/.cargo/registry/src/github.com-1ecc6299db9ec823/gdal-sys-0.3.0/build.rs:202:13
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

warning: build failed, waiting for other jobs to finish...
error: build failed

But I have gdal installed:

$ gdal-config --prefix
/usr/local/Cellar/gdal/3.2.0_1
$ gdal-config --version
3.2.0

After looking at the error message's environment variable suggestions, I tried setting some variables which looked promising...

$ gdal-config --cflags
-I/usr/local/Cellar/gdal/3.2.0_1/include
$ gdal-config --libs
-L/usr/local/Cellar/gdal/3.2.0_1/lib -lgdal
$ export GDAL_INCLUDE_DIR=/usr/local/Cellar/gdal/3.2.0_1/include
$ export GDAL_LIB_DIR=/usr/local/Cellar/gdal/3.2.0_1/lib
$ export GDAL_HOME=/usr/local/Cellar/gdal/3.2.0_1
$ cargo build
... error ...

But it's possible I'm setting them incorrectly.

What am I missing?

Thanks!

[jdroenner]

i think you need pkg-config. maybe @michaelkirk can help here?

[tomplex]

running brew install pkg-config allowed the build to proceed. Thanks for your response!

[michaelkirk]

I've created #137 to track the work I'm going to do for better error messages when missing pkg-config.