maint: rename cruft/ directory to external/ * liboctave/external: Renamed from liboctave/cruft. * * configure.ac: Rename XTRA_CRUFT_SH_LDFLAGS to XTRA_EXTERNAL_SH_LDFLAGS. Rename CRUFT_DLL_DEFS to EXTERNAL_DLL_DEFS. * install.txi: Update documentation to refer to liboctave/external. * HACKING: Update explanation of directory tree. * liboctave/module.mk: Update build system to include liboctave/external * liboctave/numeric/module.mk: Update CPPFLAGS to find Faddeeva in external/ directory. * lo-blas-proto.h, lo-lapack-proto.h: Update comments which referred to cruft directory.

      subroutine cfftf (n,c,wsave)
      dimension       c(*)       ,wsave(*)
      if (n .eq. 1) return
      iw1 = n+n+1
      iw2 = iw1+n+n
      call cfftf1 (n,c,wsave,wsave(iw1),wsave(iw2))
      return
      end