gdal 0.14.0

GDAL bindings for Rust
Documentation 
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use std::str::FromStr;

fn gdal_version_info() -> String {
    gdal_sys::gdal_version_docs_rs_wrapper()
}

fn main() {
    let gdal_version_string = gdal_version_info();
    println!("GDAL version string: \"{}\"", gdal_version_string);

    // this version string is the result of:
    // #define GDAL_COMPUTE_VERSION(maj,min,rev) ((maj)*1000000+(min)*10000+(rev)*100)
    // so we can get the parts by doing the following
    let gdal_version = i64::from_str(&gdal_version_string)
        .expect("Could not convert gdal version string into number.");
    let major = gdal_version / 1000000;
    let minor = (gdal_version - major * 1000000) / 10000;
    let patch = (gdal_version - major * 1000000 - minor * 10000) / 100;

    if major < 2 {
        panic!(
            "The GDAL crate requires a GDAL version >= 2.0.0. Found {}.{}.{}",
            major, minor, patch
        );
    }

    println!("cargo:rustc-cfg=gdal_{}", major);
    println!("cargo:rustc-cfg=gdal_{}_{}", major, minor);
    println!("cargo:rustc-cfg=gdal_{}_{}_{}", major, minor, patch);

    println!("cargo:rustc-cfg=major_is_{}", major);
    println!("cargo:rustc-cfg=minor_is_{}", minor);
    println!("cargo:rustc-cfg=patch_is_{}", patch);

    // we only support GDAL >= 2.0.
    for major in 2..=major {
        println!("cargo:rustc-cfg=major_ge_{}", major);
    }

    for minor in 0..=minor {
        println!("cargo:rustc-cfg=minor_ge_{}", minor);
    }

    for patch in 0..=patch {
        println!("cargo:rustc-cfg=patch_ge_{}", patch);
    }
}