static build of netcdf

Author: magnusuMET

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "netcdf-sys/source"]
+	path = netcdf-sys/source
+	url = https://github.com/Unidata/netcdf-c.git

Cargo.toml

@@ -16,6 +16,7 @@ readme = "README.md"
 [features]
 default = ["ndarray"]
 memory = ["netcdf-sys/memio"]
+static = ["netcdf-sys/static"]
 
 [dependencies]
 lazy_static = "1.4.0"
@@ -27,3 +28,4 @@ structopt = "0.3.3"
 
 [dependencies.netcdf-sys]
 version = "0.2.1"
+path = "netcdf-sys"

netcdf-sys/Cargo.toml

@@ -14,8 +14,18 @@ edition = "2018"
 links = "netcdf"
 build = "build.rs"
 
+[dependencies]
+hdf5-sys = { git = "https://github.com/magnusuMET/hdf5-rust.git", branch = "feature/static_build", features = ["hl", "threadsafe", "deprecated"] }
+libz-sys = { version = "1.0.25", optional = true }
+
 [dev-dependencies]
 lazy_static = "1.4.0"
 
+[build-dependencies]
+cmake = "0.1.42"
+
 [features]
+default = ["libz"]
 memio = []
+static = ["libz-sys/static", "hdf5-sys/static"]
+libz = ["libz-sys"]

netcdf-sys/build.rs

@@ -1,4 +1,48 @@
+macro_rules! feature {
+    ($feature:expr) => {
+        std::env::var(concat!("CARGO_FEATURE_", $feature))
+    };
+}
+
 fn main() {
+    println!("cargo:rerun-if-changed=build.rs");
+    if feature!("STATIC").is_ok() {
+        build();
+        return;
+    }
+    // Link to the system netcdf
     println!("cargo:rustc-link-lib=netcdf");
     println!("cargo:rerun-if-changed=build.rs");
 }
+
+fn build() {
+    let hdf5_incdir = std::env::var("DEP_HDF5_INCLUDE").unwrap();
+    let hdf5_lib = std::env::var("DEP_HDF5_LIBRARY").unwrap();
+    let hdf5_hl_lib = std::env::var("DEP_HDF5_HL_LIBRARY").unwrap();
+
+
+    let netcdf = cmake::Config::new("source")
+        .define("BUILD_SHARED_LIBS", "OFF")
+        .define("NC_FIND_SHARED_LIBS", "OFF")
+        .define("BUILD_UTILITIES", "OFF")
+        .define("ENABLE_EXAMPLES", "OFF")
+        .define("ENABLE_DAP_REMOTE_TESTS", "OFF")
+        .define("ENABLE_TESTS", "OFF")
+        .define("ENABLE_EXTREME_NUMBERS", "OFF")
+        .define("ENABLE_PARALLEL_TESTS", "OFF")
+        .define("ENABLE_FILTER_TESTING", "OFF")
+        .define("ENABLE_BASH_SCRIPT_TESTING", "OFF")
+        //
+        .define("HDF5_C_LIBRARY", &hdf5_lib)
+        .define("HDF5_HL_LIBRARY", &hdf5_hl_lib)
+        .define("HDF5_INCLUDE_DIR", hdf5_incdir)
+        //
+        .define("ENABLE_DAP", "OFF") // TODO: feature flag, requires curl
+        //
+        .profile("RelWithDebInfo") // TODO: detect opt-level
+        .very_verbose(true)
+        .build();
+
+    println!("cargo:rustc-link-lib=static=netcdf");
+    println!("cargo:rustc-link-search=native={}/lib", netcdf.display());
+}

netcdf-sys/source

@@ -1,6 +1,8 @@
 #![allow(non_upper_case_globals)]
 #![allow(non_camel_case_types)]
 
+extern crate hdf5_sys;
+
 mod netcdf_bindings;
 mod netcdf_const;
 pub use netcdf_bindings::*;

netcdf-sys/src/lib.rs

@@ -13,12 +13,10 @@ pub struct nc_vlen_t {
 }
 
 pub type nclong = c_int;
-#[link(name = "netcdf")]
 extern "C" {
     pub static mut ncerr: c_int;
     pub static mut ncopts: c_int;
 }
-#[link(name = "netcdf")]
 extern "C" {
     pub fn nc_inq_libvers() -> *const c_char;
     pub fn nc_strerror(ncerr: c_int) -> *const c_char;