pass prefix to MUSL install

Author: TomKellyGenetics

hts-sys/build.rs

@@ -132,20 +132,23 @@ fn main() {
         // https://github.com/rust-lang/cargo/issues/572#issuecomment-632456478
         !Command::new("make")
         .current_dir(out.join("htslib"))
+        .arg("install")
         .arg("clean")
         .status().unwrap().success()
 
         &&
 
         !Command::new("autoreconf")
         .current_dir(out.join("htslib"))
+        .arg("install")
         .env("CFLAGS", &cc_cflags)
         .status().unwrap().success()
 
         &&
 
         !Command::new("./configure")
         .current_dir(out.join("htslib"))
+        .arg("install")
         .env("CFLAGS", &cc_cflags)
         .arg(format!("--host={}", &host))
         .status().unwrap().success()