config.h.win32.in: Fix previous commit
config.h.win32.in: Fix previous commit

We should still let people building via the MSVC projects decide whether
they use the bundled PCRE sources for building GLib.  Accidentally
changed it in the previous commit.

johne53/MB3Glib,endlessm/glib,johne53/MB3Glib,johne53/MB3Glib,endlessm/glib,johne53/MB3Glib,johne53/MB3Glib,endlessm/glib,endlessm/glib,endlessm/glib,johne53/MB3Glib