comment on why not using -gline-tables-only

Author: workingjubilee

crates/line-tables-only/build.rs

@@ -3,6 +3,7 @@ fn main() {
 
     cc::Build::new()
         .opt_level(0)
+        // Don't use -gline-tables-only: it breaks on platforms that don't use clang (Linux with gcc, etc.)
         .flag("-g1")
         .file("src/callback.c")
         .compile("libcallback.a");