--- a/sqlite/gnatcoll_sqlite.gpr	2018-06-24 14:08:52.477478654 +0200
+++ b/sqlite/gnatcoll_sqlite.gpr	2018-06-24 14:08:59.149372684 +0200
@@ -42,7 +42,7 @@
    for Library_Name    use Name;
    for Library_Version use "lib" & Name & Gnatcoll.So_Ext & "." & Version;
 
-   for Languages use ("Ada", "C");
+   for Languages use ("Ada");
 
    Thread_Lib := ();
 
--- a/postgres/gnatcoll_postgres.gpr	2018-06-24 16:39:56.345322365 +0200
+++ b/postgres/gnatcoll_postgres.gpr	2018-06-24 16:40:30.737772583 +0200
@@ -81,6 +81,7 @@
             for Switches ("Ada") use ("-O2", "-gnatn", "-gnatwaCJ");
             for Switches ("C") use ("-O2", "-Wunreachable-code") & PQP_Flag;
       end case;
+      for Driver ("C") use External ("GCC", "gcc");
    end Compiler;
 
    package Binder is