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build.rs
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build.rs
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// SPDX-FileCopyrightText: 2022 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
// SPDX-FileContributor: Andrew Hayzen <andrew.hayzen@kdab.com>
//
// SPDX-License-Identifier: MIT OR Apache-2.0
fn main() {
let feature_qt_gui_enabled = std::env::var("CARGO_FEATURE_QT_GUI").is_ok();
let feature_qt_qml_enabled = std::env::var("CARGO_FEATURE_QT_QML").is_ok();
let mut qt_modules = vec!["Core".to_owned()];
if feature_qt_gui_enabled {
qt_modules.push("Gui".to_owned());
}
if feature_qt_qml_enabled {
qt_modules.push("Qml".to_owned());
}
let qtbuild = qt_build_utils::QtBuild::new(qt_modules).expect("Could not find Qt installation");
qtbuild.cargo_link_libraries();
// Required for tests
qt_build_utils::setup_linker();
// Find the Qt version and tell the Rust compiler
// this allows us to have conditional Rust code
println!(
"cargo:rustc-cfg=qt_version_major=\"{}\"",
qtbuild.version().major
);
let mut rust_bridges = vec![
"core/qbytearray",
"core/qcoreapplication",
"core/qdate",
"core/qdatetime",
"core/qhash/qhash_i32_qbytearray",
"core/qhash/qhash_qstring_qvariant",
"core/qlist/qlist_bool",
"core/qlist/qlist_f32",
"core/qlist/qlist_f64",
"core/qlist/qlist_i8",
"core/qlist/qlist_i16",
"core/qlist/qlist_i32",
"core/qlist/qlist_i64",
"core/qlist/qlist_qbytearray",
"core/qlist/qlist_qdate",
"core/qlist/qlist_qdatetime",
"core/qlist/qlist_qmargins",
"core/qlist/qlist_qmarginsf",
"core/qlist/qlist_qpersistentmodelindex",
"core/qlist/qlist_qpoint",
"core/qlist/qlist_qpointf",
"core/qlist/qlist_qrect",
"core/qlist/qlist_qrectf",
"core/qlist/qlist_qsize",
"core/qlist/qlist_qsizef",
"core/qlist/qlist_qstring",
"core/qlist/qlist_qtime",
"core/qlist/qlist_qurl",
"core/qlist/qlist_qvariant",
"core/qlist/qlist_u8",
"core/qlist/qlist_u16",
"core/qlist/qlist_u32",
"core/qlist/qlist_u64",
"core/qmap/qmap_qstring_qvariant",
"core/qmargins",
"core/qmarginsf",
"core/qmetaobjectconnection",
"core/qmodelindex",
"core/qpersistentmodelindex",
"core/qpoint",
"core/qpointf",
"core/qrect",
"core/qrectf",
"core/qset/qset_bool",
"core/qset/qset_f32",
"core/qset/qset_f64",
"core/qset/qset_i8",
"core/qset/qset_i16",
"core/qset/qset_i32",
"core/qset/qset_i64",
"core/qset/qset_qbytearray",
"core/qset/qset_qdate",
"core/qset/qset_qdatetime",
"core/qset/qset_qpersistentmodelindex",
"core/qset/qset_qstring",
"core/qset/qset_qtime",
"core/qset/qset_qurl",
"core/qset/qset_u8",
"core/qset/qset_u16",
"core/qset/qset_u32",
"core/qset/qset_u64",
"core/qsize",
"core/qsizef",
"core/qstring",
"core/qstringlist",
"core/qt",
"core/qtime",
"core/qtimezone",
"core/qurl",
"core/qvariant/mod",
"core/qvariant/qvariant_bool",
"core/qvariant/qvariant_f32",
"core/qvariant/qvariant_f64",
"core/qvariant/qvariant_i8",
"core/qvariant/qvariant_i16",
"core/qvariant/qvariant_i32",
"core/qvariant/qvariant_i64",
"core/qvariant/qvariant_qbytearray",
"core/qvariant/qvariant_qdate",
"core/qvariant/qvariant_qdatetime",
"core/qvariant/qvariant_qmodelindex",
"core/qvariant/qvariant_qpersistentmodelindex",
"core/qvariant/qvariant_qpoint",
"core/qvariant/qvariant_qpointf",
"core/qvariant/qvariant_qrect",
"core/qvariant/qvariant_qrectf",
"core/qvariant/qvariant_qsize",
"core/qvariant/qvariant_qsizef",
"core/qvariant/qvariant_qstring",
"core/qvariant/qvariant_qstringlist",
"core/qvariant/qvariant_qtime",
"core/qvariant/qvariant_qurl",
"core/qvariant/qvariant_u8",
"core/qvariant/qvariant_u16",
"core/qvariant/qvariant_u32",
"core/qvariant/qvariant_u64",
"core/qvector/qvector_bool",
"core/qvector/qvector_f32",
"core/qvector/qvector_f64",
"core/qvector/qvector_i8",
"core/qvector/qvector_i16",
"core/qvector/qvector_i32",
"core/qvector/qvector_i64",
"core/qvector/qvector_qbytearray",
"core/qvector/qvector_qdate",
"core/qvector/qvector_qdatetime",
"core/qvector/qvector_qmargins",
"core/qvector/qvector_qmarginsf",
"core/qvector/qvector_qpersistentmodelindex",
"core/qvector/qvector_qpoint",
"core/qvector/qvector_qpointf",
"core/qvector/qvector_qrect",
"core/qvector/qvector_qrectf",
"core/qvector/qvector_qsize",
"core/qvector/qvector_qsizef",
"core/qvector/qvector_qstring",
"core/qvector/qvector_qtime",
"core/qvector/qvector_qurl",
"core/qvector/qvector_qvariant",
"core/qvector/qvector_u8",
"core/qvector/qvector_u16",
"core/qvector/qvector_u32",
"core/qvector/qvector_u64",
];
if feature_qt_gui_enabled {
rust_bridges.extend([
"core/qlist/qlist_qcolor",
"core/qvariant/qvariant_qcolor",
"core/qvector/qvector_qcolor",
"gui/qcolor",
"gui/qguiapplication",
"gui/qvector2d",
"gui/qvector3d",
"gui/qvector4d",
]);
}
if feature_qt_qml_enabled {
rust_bridges.extend(["qml/qqmlapplicationengine", "qml/qqmlengine"]);
}
for bridge in &rust_bridges {
println!("cargo:rerun-if-changed=src/{bridge}.rs");
}
for include_path in qtbuild.include_paths() {
cxx_build::CFG
.exported_header_dirs
.push(include_path.as_path());
}
let mut builder =
cxx_build::bridges(rust_bridges.iter().map(|bridge| format!("src/{bridge}.rs")));
let mut cpp_files = vec![
"core/qbytearray",
"core/qcoreapplication",
"core/qdate",
"core/qdatetime",
"core/qhash/qhash",
"core/qlist/qlist",
"core/qmap/qmap",
"core/qmargins",
"core/qmarginsf",
"core/qmetaobjectconnection",
"core/qmodelindex",
"core/qpersistentmodelindex",
"core/qpoint",
"core/qpointf",
"core/qrect",
"core/qrectf",
"core/qset/qset",
"core/qsize",
"core/qsizef",
"core/qstring",
"core/qstringlist",
"core/qtime",
"core/qtimezone",
"core/qurl",
"core/qvariant/qvariant",
"core/qvector/qvector",
];
if feature_qt_gui_enabled {
cpp_files.extend([
"gui/qcolor",
"gui/qguiapplication",
"gui/qvector2d",
"gui/qvector3d",
"gui/qvector4d",
]);
}
if feature_qt_qml_enabled {
cpp_files.extend(["qml/qqmlapplicationengine", "qml/qqmlengine"]);
}
for cpp_file in &cpp_files {
builder.file(format!("src/{cpp_file}.cpp"));
println!("cargo:rerun-if-changed=src/{cpp_file}.cpp");
}
builder.file("src/qt_types.cpp");
println!("cargo:rerun-if-changed=src/qt_types.cpp");
builder.file("src/std_types.cpp");
println!("cargo:rerun-if-changed=src/std_types.cpp");
println!("cargo:rerun-if-changed=src/assertion_utils.h");
// Write this library's manually written C++ headers to files and add them to include paths
let out_dir = std::env::var("OUT_DIR").unwrap();
cxx_qt_lib_headers::write_headers(format!("{out_dir}/cxx-qt-lib"));
builder.include(out_dir);
// Enable Qt Gui in C++ if the feature is enabled
if feature_qt_gui_enabled {
builder.define("CXX_QT_GUI_FEATURE", None);
}
// Enable Qt Qml in C++ if the feature is enabled
if feature_qt_gui_enabled {
builder.define("CXX_QT_QML_FEATURE", None);
}
// MSVC
builder.flag_if_supported("/std:c++17");
builder.flag_if_supported("/Zc:__cplusplus");
builder.flag_if_supported("/permissive-");
// GCC + Clang
builder.flag_if_supported("-std=c++17");
builder.compile("cxx-qt-lib");
}