--- configure.orig	2015-06-01 14:38:18 UTC
+++ configure
@@ -2107,6 +2107,11 @@ fi
       ac_GNATLIB=`cd $ac_GNATDIR; ls libgnat-*.dll | sed 's,lib,,;s,.dll,,'`
       OS_SPECIFIC_LINK_OPTIONS=-Wl,-L$ac_GNATDIR,-l$ac_GNATLIB
       ;;
+   *dragonfly*|*bsd*)
+      if test x$CAN_BUILD_SHARED = xyes ; then
+         BUILD_SHARED=yes
+      fi
+      ;;
    *darwin*)
       SO_EXT=.dylib
       NEED_OBJECTIVE_C=yes
@@ -3605,7 +3610,7 @@ $as_echo_n "checking for GTK - version >
     GTK_CFLAGS=`$PKG_CONFIG $GTK --cflags`
     GTK_LIBS=`$PKG_CONFIG $GTK gmodule-2.0 --libs`
 
-            GTK_LIBS="$GTK_LIBS $LDFLAGS"
+            GTK_LIBS="$GTK_LIBS $LDFLAGS -lm -lX11"
 
                     ac_save_CFLAGS="$CFLAGS"
     ac_save_LIBS="$LIBS"