--- gnatcoll_python.gpr	2020-05-27 08:29:56.584766613 +1000
+++ gnatcoll_python.gpr-new	2020-05-27 08:30:14.718689892 +1000
@@ -73,7 +73,7 @@
          when "PROD" =>
             --  Do not use -gnatwe for production mode
             for Switches ("Ada") use ("-O2", "-gnatn", "-gnatwaCJ");
-            for Switches ("C") use ("-O2", "-Wunreachable-code") & Split(Python_CFLAGS, " ");
+            for Switches ("C") use ("-O2", "-Wunreachable-code", "-fPIC") & Split(Python_CFLAGS, " ");
       end case;
    end Compiler;