Have a look to #821268. I applied a patch upstream last weak (resulting to the paradox plugin not built anymore because pxlib is currently not usable). Here is the patch:
diff --git a/configure.ac b/configure.ac index cb09b70..abcaba7 100644 --- a/configure.ac +++ b/configure.ac @@ -499,7 +499,11 @@ if $try_paradox; then fi if test "x$paradox_msg" = xyes; then - enable_paradox=true + SAVE_LIBS="$LIBS" + LIBS="$LIBS $PARADOX_LIBS" + AC_CHECK_FUNC(PX_open_gsf,[ enable_paradox=true ],) + LIBS="$SAVE_LIBS" + unset SAVE_LIBS fi AM_CONDITIONAL(WITH_PARADOX, $enable_paradox) AC_SUBST(PARADOX_LIBS) Regards, J. Brefort