This patch will...

1. Remove the "-Wall" option from the ecpg/lib and ecpg/preproc Makefile.

2. Remove the addition of $(SRCDIR)/include and-or $(SRCDIR)/backend from
   ecpg/lib, ecpg/preproc, libpq and utils Makefiles. Already in CFLAGS...

3. Set MK_NO_LORDER and RANLIB in Makefile.aix to avoid a couple of extra
   steps taken care of by the 'ld' command anyways.