libdwarf: version the shared object (#20996)

Upstream sets the soname, so binaries compiled against libdwarf.so will
link against libdwarf.so.1 at runtime. Install libdwarf.so.1 and
symlink libdwarf.so to it so both linking and runtime loading work again.

pkgs/development/libraries/libdwarf/default.nix

@@ -18,7 +18,8 @@ stdenv.mkDerivation rec {
 
   installPhase = ''
     mkdir -p $out/lib $out/include
-    cp libdwarf.so $out/lib
+    cp libdwarf.so.1 $out/lib
+    ln -s libdwarf.so.1 $out/lib/libdwarf.so
     cp libdwarf.h dwarf.h $out/include
   '';