Move libvlc link to libvlc-sys
Romain Roffé
parent
34bd7b2988
commit
55310d8bd3
|
|
@ -21,9 +21,6 @@ crate-type = ["rlib"]
|
|||
libc = "0.2"
|
||||
libvlc-sys = { path = "libvlc-sys" }
|
||||
|
||||
[target.'cfg(target_os = "windows")'.build-dependencies]
|
||||
vswhom = "0.1.0"
|
||||
|
||||
[features]
|
||||
default = []
|
||||
use-bindgen = ["libvlc-sys/use-bindgen"]
|
||||
|
|
|
|||
115
build.rs
115
build.rs
|
|
@ -1,115 +0,0 @@
|
|||
fn main() {
|
||||
#[cfg(target_os = "windows")]
|
||||
windows::link_vlc();
|
||||
|
||||
println!("cargo:rustc-link-lib=vlc");
|
||||
}
|
||||
|
||||
#[cfg(target_os = "windows")]
|
||||
mod windows {
|
||||
#[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))]
|
||||
compile_error!("Only x86 and x86_64 are supported at the moment. Adding support for other architectures should be trivial.");
|
||||
|
||||
use std::env;
|
||||
use std::ffi::OsString;
|
||||
use std::fs;
|
||||
use std::path::{Path, PathBuf};
|
||||
use std::process::Command;
|
||||
|
||||
use vswhom::VsFindResult;
|
||||
|
||||
pub fn link_vlc() {
|
||||
let vlc_path = vlc_path();
|
||||
|
||||
let out_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
|
||||
|
||||
let vs = VsFindResult::search().expect("Could not locate Visual Studio");
|
||||
let vs_exe_path = PathBuf::from(
|
||||
vs.vs_exe_path
|
||||
.expect("Could not retrieve executable path for Visual Studio"),
|
||||
);
|
||||
|
||||
generate_lib_from_dll(&out_dir, &vs_exe_path, &vlc_path);
|
||||
println!("cargo:rustc-link-search=native={}", out_dir.display());
|
||||
// NOTE: Without this directive, linking fails with:
|
||||
// ```
|
||||
// error LNK2019: unresolved external symbol vsnprintf referenced in function _{MangledSymbolName}
|
||||
// msvcrt.lib(vsnprintf.obj) : error LNK2001: unresolved external symbol vsnprintf
|
||||
// msvcrt.lib(vsnprintf.obj) : error LNK2001: unresolved external symbol _vsnprintf
|
||||
// ```
|
||||
// https://stackoverflow.com/a/34230122
|
||||
println!("cargo:rustc-link-lib=dylib=legacy_stdio_definitions");
|
||||
}
|
||||
|
||||
fn generate_lib_from_dll(out_dir: &Path, vs_exe_path: &Path, vlc_path: &Path) {
|
||||
// https://wiki.videolan.org/GenerateLibFromDll/
|
||||
|
||||
let vs_dumpbin = vs_exe_path.join("dumpbin.exe");
|
||||
let vs_lib = vs_exe_path.join("lib.exe");
|
||||
let vlc_def_path = out_dir.join("libvlc.def");
|
||||
let vlc_import_lib = out_dir.join("vlc.lib");
|
||||
|
||||
let libvlc = vlc_path.join("libvlc.dll");
|
||||
let exports = Command::new(vs_dumpbin)
|
||||
.current_dir(out_dir)
|
||||
.arg("/EXPORTS")
|
||||
.arg(libvlc.display().to_string().trim_end_matches(r"\"))
|
||||
.output()
|
||||
.unwrap();
|
||||
let exports = String::from_utf8(exports.stdout).unwrap();
|
||||
|
||||
let mut vlc_def = String::from("EXPORTS\n");
|
||||
for line in exports.lines() {
|
||||
if let Some(line) = line.get(26..) {
|
||||
if line.starts_with("libvlc_") {
|
||||
vlc_def.push_str(line);
|
||||
vlc_def.push_str("\r\n");
|
||||
}
|
||||
}
|
||||
}
|
||||
fs::write(&vlc_def_path, vlc_def.into_bytes()).unwrap();
|
||||
|
||||
// FIXME: Handle paths with spaces in them.
|
||||
Command::new(vs_lib)
|
||||
.current_dir(out_dir)
|
||||
.arg("/NOLOGO")
|
||||
.args(&[
|
||||
format!(
|
||||
r#"/DEF:{}"#,
|
||||
vlc_def_path.display().to_string().trim_end_matches(r"\")
|
||||
),
|
||||
format!(
|
||||
r#"/OUT:{}"#,
|
||||
vlc_import_lib.display().to_string().trim_end_matches(r"\")
|
||||
),
|
||||
format!(
|
||||
"/MACHINE:{}",
|
||||
match target_arch().as_str() {
|
||||
"x86" => "x86",
|
||||
"x86_64" => "x64",
|
||||
_ => unreachable!(),
|
||||
}
|
||||
),
|
||||
])
|
||||
.spawn()
|
||||
.unwrap();
|
||||
}
|
||||
|
||||
fn vlc_path() -> PathBuf {
|
||||
#[allow(unused_assignments)]
|
||||
let arch_path: Option<OsString> = match target_arch().as_str() {
|
||||
"x86" => env::var_os("VLC_LIB_DIR_X86"),
|
||||
"x86_64" => env::var_os("VLC_LIB_DIR_X86_64"),
|
||||
_ => unreachable!(),
|
||||
};
|
||||
|
||||
arch_path
|
||||
.or_else(|| env::var_os("VLC_LIB_DIR"))
|
||||
.map(PathBuf::from)
|
||||
.expect("VLC_LIB_DIR not set")
|
||||
}
|
||||
|
||||
fn target_arch() -> String {
|
||||
env::var("CARGO_CFG_TARGET_ARCH").unwrap()
|
||||
}
|
||||
}
|
||||
|
|
@ -24,6 +24,9 @@ libc = "0.2"
|
|||
bindgen = {version = "0.59", optional = true }
|
||||
pkg-config = "0.3"
|
||||
|
||||
[target.'cfg(target_os = "windows")'.build-dependencies]
|
||||
vswhom = "0.1.0"
|
||||
|
||||
[features]
|
||||
default = []
|
||||
use-bindgen = ["bindgen"]
|
||||
|
|
|
|||
|
|
@ -46,14 +46,126 @@ fn copy_pregenerated_bindings()
|
|||
.expect("Couldn't find pregenerated bindings!");
|
||||
}
|
||||
|
||||
fn main() {
|
||||
#[cfg(feature = "bindgen")]
|
||||
{
|
||||
generate_bindings();
|
||||
#[cfg(target_os = "windows")]
|
||||
mod windows {
|
||||
#[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))]
|
||||
compile_error!("Only x86 and x86_64 are supported at the moment. Adding support for other architectures should be trivial.");
|
||||
|
||||
use std::env;
|
||||
use std::ffi::OsString;
|
||||
use std::fs;
|
||||
use std::path::{Path, PathBuf};
|
||||
use std::process::Command;
|
||||
|
||||
use vswhom::VsFindResult;
|
||||
|
||||
pub fn link_vlc() {
|
||||
let vlc_path = vlc_path();
|
||||
|
||||
let out_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
|
||||
|
||||
let vs = VsFindResult::search().expect("Could not locate Visual Studio");
|
||||
let vs_exe_path = PathBuf::from(
|
||||
vs.vs_exe_path
|
||||
.expect("Could not retrieve executable path for Visual Studio"),
|
||||
);
|
||||
|
||||
generate_lib_from_dll(&out_dir, &vs_exe_path, &vlc_path);
|
||||
println!("cargo:rustc-link-search=native={}", out_dir.display());
|
||||
// NOTE: Without this directive, linking fails with:
|
||||
// ```
|
||||
// error LNK2019: unresolved external symbol vsnprintf referenced in function _{MangledSymbolName}
|
||||
// msvcrt.lib(vsnprintf.obj) : error LNK2001: unresolved external symbol vsnprintf
|
||||
// msvcrt.lib(vsnprintf.obj) : error LNK2001: unresolved external symbol _vsnprintf
|
||||
// ```
|
||||
// https://stackoverflow.com/a/34230122
|
||||
println!("cargo:rustc-link-lib=dylib=legacy_stdio_definitions");
|
||||
}
|
||||
|
||||
fn generate_lib_from_dll(out_dir: &Path, vs_exe_path: &Path, vlc_path: &Path) {
|
||||
// https://wiki.videolan.org/GenerateLibFromDll/
|
||||
|
||||
let vs_dumpbin = vs_exe_path.join("dumpbin.exe");
|
||||
let vs_lib = vs_exe_path.join("lib.exe");
|
||||
let vlc_def_path = out_dir.join("libvlc.def");
|
||||
let vlc_import_lib = out_dir.join("vlc.lib");
|
||||
|
||||
let libvlc = vlc_path.join("libvlc.dll");
|
||||
let exports = Command::new(vs_dumpbin)
|
||||
.current_dir(out_dir)
|
||||
.arg("/EXPORTS")
|
||||
.arg(libvlc.display().to_string().trim_end_matches(r"\"))
|
||||
.output()
|
||||
.unwrap();
|
||||
let exports = String::from_utf8(exports.stdout).unwrap();
|
||||
|
||||
let mut vlc_def = String::from("EXPORTS\n");
|
||||
for line in exports.lines() {
|
||||
if let Some(line) = line.get(26..) {
|
||||
if line.starts_with("libvlc_") {
|
||||
vlc_def.push_str(line);
|
||||
vlc_def.push_str("\r\n");
|
||||
}
|
||||
}
|
||||
}
|
||||
fs::write(&vlc_def_path, vlc_def.into_bytes()).unwrap();
|
||||
|
||||
// FIXME: Handle paths with spaces in them.
|
||||
Command::new(vs_lib)
|
||||
.current_dir(out_dir)
|
||||
.arg("/NOLOGO")
|
||||
.args(&[
|
||||
format!(
|
||||
r#"/DEF:{}"#,
|
||||
vlc_def_path.display().to_string().trim_end_matches(r"\")
|
||||
),
|
||||
format!(
|
||||
r#"/OUT:{}"#,
|
||||
vlc_import_lib.display().to_string().trim_end_matches(r"\")
|
||||
),
|
||||
format!(
|
||||
"/MACHINE:{}",
|
||||
match target_arch().as_str() {
|
||||
"x86" => "x86",
|
||||
"x86_64" => "x64",
|
||||
_ => unreachable!(),
|
||||
}
|
||||
),
|
||||
])
|
||||
.spawn()
|
||||
.unwrap();
|
||||
}
|
||||
|
||||
fn vlc_path() -> PathBuf {
|
||||
#[allow(unused_assignments)]
|
||||
let arch_path: Option<OsString> = match target_arch().as_str() {
|
||||
"x86" => env::var_os("VLC_LIB_DIR_X86"),
|
||||
"x86_64" => env::var_os("VLC_LIB_DIR_X86_64"),
|
||||
_ => unreachable!(),
|
||||
};
|
||||
|
||||
arch_path
|
||||
.or_else(|| env::var_os("VLC_LIB_DIR"))
|
||||
.map(PathBuf::from)
|
||||
.expect("VLC_LIB_DIR not set")
|
||||
}
|
||||
|
||||
fn target_arch() -> String {
|
||||
env::var("CARGO_CFG_TARGET_ARCH").unwrap()
|
||||
}
|
||||
}
|
||||
|
||||
fn main() {
|
||||
// Binding generation
|
||||
#[cfg(feature = "bindgen")]
|
||||
generate_bindings();
|
||||
|
||||
#[cfg(not(feature = "bindgen"))]
|
||||
{
|
||||
copy_pregenerated_bindings();
|
||||
}
|
||||
|
||||
// Link
|
||||
#[cfg(target_os = "windows")]
|
||||
windows::link_vlc();
|
||||
|
||||
println!("cargo:rustc-link-lib=vlc");
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue