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build.rs
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build.rs
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use std::env;
use std::fs;
use std::fs::File;
use std::io::Write;
use std::path::Path;
use std::process::Command;
extern crate gcc;
extern crate bindgen;
fn main() {
update_submodules();
patch_wxc_glue();
build_libwxc();
export_linker_flags();
generate_unsafe_rs();
generate_other_rs();
}
fn update_submodules() {
println!("build.rs : update submodules");
let curr_dir_str = env::var("CARGO_MANIFEST_DIR").unwrap();
let curr_dir = Path::new(&curr_dir_str);
Command::new("git").arg("submodule").arg("update").arg("--init")
.current_dir(&curr_dir).status().unwrap();
println!("build.rs : update submodules - done");
}
fn path_exists(path: &Path) -> bool {
match fs::metadata(path) {
Ok(_) => true,
Err(_) => false
}
}
fn build_libwxc() {
println!("build.rs : check if libwxc already exists");
let out_dir = env::var("OUT_DIR").unwrap();
let dest_path = Path::new(&out_dir).join("libwxc.a");
if path_exists(&dest_path) {
//no need to rebuild libwxc.a
//just export linker flags
println!("cargo:rustc-link-search=native={}", &out_dir);
println!("cargo:rustc-link-lib=static=wxc");
println!("build.rs : libwxc already exists");
return;
}
println!("build.rs : build libwxc");
let files = vec![
"apppath.cpp",
"dragimage.cpp",
"eljaccelerator.cpp",
"eljartprov.cpp",
"eljbitmap.cpp",
"eljbrush.cpp",
"eljbusyinfo.cpp",
"eljbutton.cpp",
"eljcalendarctrl.cpp",
"eljcaret.cpp",
"eljcheckbox.cpp",
"eljchecklistbox.cpp",
"eljchoice.cpp",
"eljclipboard.cpp",
"eljcoldata.cpp",
"eljcolour.cpp",
"eljcolourdlg.cpp",
"eljcombobox.cpp",
"eljconfigbase.cpp",
"eljcontrol.cpp",
"eljctxhelp.cpp",
"eljcursor.cpp",
"eljdataformat.cpp",
"eljdatetime.cpp",
"eljdc.cpp",
"eljdcsvg.cpp",
"eljdialog.cpp",
"eljdirdlg.cpp",
"eljdnd.cpp",
"eljdrawing.cpp",
"eljevent.cpp",
"eljfiledialog.cpp",
"eljfilehist.cpp",
"eljfindrepldlg.cpp",
"eljfont.cpp",
"eljfontdata.cpp",
"eljfontdlg.cpp",
"eljframe.cpp",
"eljgauge.cpp",
"eljgrid.cpp",
"eljhelpcontroller.cpp",
"eljicnbndl.cpp",
"eljicon.cpp",
"eljimage.cpp",
"eljimagelist.cpp",
"eljlayoutconstraints.cpp",
"eljlistbox.cpp",
"eljlistctrl.cpp",
"eljlocale.cpp",
"eljlog.cpp",
"eljmask.cpp",
"eljmdi.cpp",
"eljmenu.cpp",
"eljmenubar.cpp",
"eljmessagedialog.cpp",
"eljmime.cpp",
"eljminiframe.cpp",
"eljnotebook.cpp",
"eljpalette.cpp",
"eljpanel.cpp",
"eljpen.cpp",
"eljprintdlg.cpp",
"eljprinting.cpp",
"eljprocess.cpp",
"eljradiobox.cpp",
"eljradiobutton.cpp",
"eljrc.cpp",
"eljregion.cpp",
"eljregioniter.cpp",
"eljsash.cpp",
"eljscrollbar.cpp",
"eljscrolledwindow.cpp",
"eljsingleinst.cpp",
"eljsizer.cpp",
"eljslider.cpp",
"eljspinctrl.cpp",
"eljsplitterwindow.cpp",
"eljstaticbox.cpp",
"eljstaticline.cpp",
"eljstatictext.cpp",
"eljstatusbar.cpp",
"eljsystemsettings.cpp",
"eljtextctrl.cpp",
"eljtimer.cpp",
"eljtipwnd.cpp",
"eljtglbtn.cpp",
"eljtoolbar.cpp",
"eljvalidator.cpp",
"eljwindow.cpp",
"eljwizard.cpp",
"ewxw_main.cpp",
"extra.cpp",
"glcanvas.cpp",
"graphicscontext.cpp",
"image.cpp",
"managed.cpp",
"mediactrl.cpp",
"previewframe.cpp",
"printout.cpp",
"sckaddr.cpp",
"socket.cpp",
"sound.cpp",
"stc.cpp",
"std.cpp",
"taskbaricon.cpp",
"textstream.cpp",
"treectrl.cpp",
"wrapper.cpp",
];
let mut config = gcc::Config::new();
for flag in wx_config(&["--cxxflags"]).split_whitespace() {
config.flag(flag);
}
for file in files {
config.file(format!("wxHaskell/wxc/src/cpp/{}", file));
}
config
.include("wxHaskell/wxc/src/include")
.compile("libwxc.a");
println!("build.rs : build libwxc - done");
}
fn wx_config(args: &[&str]) -> String {
let output = Command::new("wx-config")
.args(args)
.output()
.unwrap();
let flags = String::from_utf8_lossy(&output.stdout);
flags.to_string()
}
fn export_linker_flags() {
println!("build.rs : export global linker flags");
//returns some like
//-L/usr/lib64 -pthread -lwx_gtk2u_xrc-3.0 -lwx_gtk2u_webview-3.0 -lwx_gtk2u_stc-3.0
//-lwx_gtk2u_richtext-3.0 -lwx_gtk2u_ribbon-3.0 -lwx_gtk2u_propgrid-3.0 -lwx_gtk2u_aui-3.0
//-lwx_gtk2u_gl-3.0 -lwx_gtk2u_media-3.0 -lwx_gtk2u_html-3.0 -lwx_gtk2u_qa-3.0
//-lwx_gtk2u_adv-3.0 -lwx_gtk2u_core-3.0 -lwx_baseu_xml-3.0 -lwx_baseu_net-3.0 -lwx_baseu-3.0
for flag in wx_config(&["--libs", "all"]).split_whitespace() {
if flag.starts_with("-L") {
println!("cargo:rustc-link-search=native={}", &flag[2..]);
} else if flag.starts_with("-l") {
println!("cargo:rustc-link-lib=dylib={}", &flag[2..]);
}
}
println!("cargo:rustc-link-lib=dylib=stdc++");
println!("build.rs : export global linker flags - done");
}
struct BindgenLogger;
impl bindgen::Logger for BindgenLogger {
fn error(&self, msg: &str) {
println!("bindgen error: {}", msg);
}
fn warn(&self, msg: &str) {
println!("bindgen warning: {}", msg);
}
}
fn generate_unsafe_rs() {
println!("build.rs : generate unsafe rs");
let logger = BindgenLogger;
let mut bindings = bindgen::builder();
bindings.forbid_unknown_types();
bindings.log(&logger);
for flag in wx_config(&["--cxxflags"]).split_whitespace() {
bindings.clang_arg(flag);
}
let args = [
"-x", "c++",
"--include", "stdint.h",
"--include", "time.h",
"wxHaskell/wxc/src/include/wxc.h"
];
for flag in args.iter() {
bindings.clang_arg(*flag);
}
match bindgen::get_include_dir() {
Some(path) => {
bindings.clang_arg("-I");
bindings.clang_arg(path);
}
None => (),
}
bindings.match_pat("wxc");
let binding = bindings.generate().unwrap();
let root_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
let unsafe_rs = Path::new(&root_dir).join("src").join("_unsafe.rs");
let mut file = File::create(&unsafe_rs).unwrap();
file.write_all("/* added by build.rs */\n".as_bytes()).unwrap();
file.write_all("use libc::*;\n\n".as_bytes()).unwrap();
binding.write(Box::new(file)).unwrap();
println!("build.rs : generate unsafe rs - done");
}
fn patch_wxc_glue() {
println!("build.rs : patching wxHaskell/wxc/src/include/wxc_glue.h");
//patch -N -p1 -i ../wxc/wxc_glue_h.patch
let root_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
let wxhaskel_dir = Path::new(&root_dir).join("wxHaskell");
Command::new("patch")
.current_dir(wxhaskel_dir)
.args(&["-N", "-p1", "-i", "../wxc/wxc_glue_h.patch"])
.status()
.unwrap();
println!("build.rs : patching wxHaskell/wxc/src/include/wxc_glue.h - done");
}
fn generate_other_rs() {
println!("build.rs : running src/codegen.py");
Command::new("python")
.args(&["src/codegen.py", "wxHaskell/wxc/src/include/wxc.h"])
.status()
.unwrap();
println!("build.rs : running src/codegen.py - done");
}