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Issue#695 - Link liburing.a statically if present. #724

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Issue#695 - Link liburing.a statically if present. #724

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Issue#695 - Link liburing.a statically if present.
subains Oct 12, 2022
0600923
Inital commit of cxxrocksdb.
subains Oct 13, 2022
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28 changes: 16 additions & 12 deletions librocksdb_sys/build.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@ extern crate bindgen;
extern crate cc;
extern crate cmake;

use cc::Build;
use cc::{Build, Tool};
use cmake::Config;
use std::path::{Path, PathBuf};
use std::{env, str};
Expand Down Expand Up @@ -79,24 +79,29 @@ fn main() {
build.flag("-std=c++11");
build.flag("-fno-rtti");
}
link_cpp(&mut build);
build.warnings(false).compile("libcrocksdb.a");
}

fn link_cpp(build: &mut Build) {
let tool = build.get_compiler();
let stdlib = if tool.is_like_gnu() {
"libstdc++.a"

if tool.is_like_gnu() {
link_lib("libstdc++.a", &tool);
build.cpp_link_stdlib(None);
} else if tool.is_like_clang() {
"libc++.a"
link_lib("libc++.a", &tool);
build.cpp_link_stdlib(None);
} else {
// Don't link to c++ statically on windows.
return;
};

link_lib("liburing.a", &tool);

build.warnings(false).compile("libcrocksdb.a");
}

fn link_lib(lib: &str, tool: &Tool) {
let output = tool
.to_command()
.arg("--print-file-name")
.arg(stdlib)
.arg(lib)
.output()
.unwrap();
if !output.status.success() || output.stdout.is_empty() {
Expand All @@ -111,7 +116,7 @@ fn link_cpp(build: &mut Build) {
return;
}
// remove lib prefix and .a postfix.
let libname = &stdlib[3..stdlib.len() - 2];
let libname = &lib[3..lib.len() - 2];
// optional static linking
if cfg!(feature = "static_libcpp") {
println!("cargo:rustc-link-lib=static={}", &libname);
Expand All @@ -122,7 +127,6 @@ fn link_cpp(build: &mut Build) {
"cargo:rustc-link-search=native={}",
path.parent().unwrap().display()
);
build.cpp_link_stdlib(None);
}

fn build_rocksdb() -> Build {
Expand Down