treewide: Make configureFlags lists

pkgs/applications/science/electronics/geda/default.nix

@@ -9,7 +9,9 @@ stdenv.mkDerivation rec {
     sha256 = "08dpa506xk4gjbbi8vnxcb640wq4ihlgmhzlssl52nhvxwx7gx5v";
   };
 
-  configureFlags = "--disable-update-xdg-database";
+  configureFlags = [
+    "--disable-update-xdg-database" 
+  ];
   nativeBuildInputs = [ pkgconfig ];
   buildInputs = [ guile gtk2 flex gawk perl ];
 

pkgs/applications/science/electronics/xcircuit/default.nix

@@ -17,7 +17,11 @@ in stdenv.mkDerivation {
   nativeBuildInputs = [ autoreconfHook automake pkgconfig ];
   hardeningDisable = [ "format" ];
 
-  configureFlags = "--with-tcl=${tcl}/lib --with-tk=${tk}/lib --with-ngspice=${getBin ngspice}/bin/ngspice";
+  configureFlags = [
+    "--with-tcl=${tcl}/lib"
+    "--with-tk=${tk}/lib"
+    "--with-ngspice=${getBin ngspice}/bin/ngspice"
+  ];
 
   buildInputs = with xorg; [ cairo ghostscript libSM libXt libICE libX11 libXpm tcl tk zlib ];