tycho: restructure platform-specific build info

tycho/CMakeLists.txt

@@ -73,6 +73,16 @@ target_compile_definitions(
       -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT
 )
 
+file(
+   GENERATE
+      OUTPUT link.txt
+      CONTENT
+"$<TARGET_PROPERTY:Qt5::Core,IMPORTED_LOCATION_RELEASE>
+$<TARGET_PROPERTY:Qt5::Widgets,IMPORTED_LOCATION_RELEASE>
+$<TARGET_PROPERTY:Qt5::Gui,IMPORTED_LOCATION_RELEASE>"
+)
+
 install(TARGETS maraiah-tycho-hermes)
+install(FILES ${CMAKE_BINARY_DIR}/link.txt TYPE SYSCONF)
 
 ## EOF

tycho/build.rs

@@ -1,8 +1,14 @@
 use rust_qt_binding_generator::*;
-use std::path::PathBuf;
+use std::{io::prelude::*, path::PathBuf};
 
 fn main()
 {
+   let (lty, dty, qtpre, cxx) = if cfg!(target_os = "macos") {
+      ("framework", "framework", "Qt", "c++")
+   } else {
+      ("dylib", "native", "Qt5", "stdc++")
+   };
+
    let out_dir = PathBuf::from(std::env::var("OUT_DIR").unwrap());
 
    let mut config = configuration::parse("bindings.json").unwrap();
@@ -21,13 +27,34 @@ fn main()
 
    let out_dir = config.build();
    let lib_dir = out_dir.join("lib");
+   let etc_dir = out_dir.join("etc");
 
    println!("cargo:rustc-link-search=native={}", lib_dir.display());
    println!("cargo:rustc-link-lib=static=maraiah-tycho-hermes");
-   println!("cargo:rustc-link-lib=dylib=Qt5Core");
-   println!("cargo:rustc-link-lib=dylib=Qt5Widgets");
-   println!("cargo:rustc-link-lib=dylib=Qt5Gui");
-   println!("cargo:rustc-link-lib=dylib=stdc++");
+
+   let fp = std::fs::File::open(etc_dir.join("link.txt")).unwrap();
+   let fp = std::io::BufReader::new(fp);
+
+   for ln in fp.lines() {
+      let ln = ln.unwrap();
+
+      let path = PathBuf::from(&ln);
+      let path = path.parent().unwrap();
+
+      let path = if cfg!(target_os = "macos") {
+         path.parent().unwrap()
+      } else {
+         path
+      };
+
+      println!("cargo:rustc-link-search={}={}", dty, path.display());
+   }
+
+   println!("cargo:rustc-link-lib={}={}Core", lty, qtpre);
+   println!("cargo:rustc-link-lib={}={}Widgets", lty, qtpre);
+   println!("cargo:rustc-link-lib={}={}Gui", lty, qtpre);
+
+   println!("cargo:rustc-link-lib=dylib={}", cxx);
 }
 
 // EOF