Re: [brlcad-devel] Cmake Vs. Autotools: Time to Configure, Build, and Install

[Tom B. <tom...@gm...>]

On Fri, Apr 6, 2012 at 10:41, Tom Browder <tom...@gm...> wrote:
> Since I've started building BRL-CAD withh cmake I've felt that a cmake

I added the autotools options Sean pointed out that were missing to
make the build environments more equivalent.  Following are the new
autotools timings (and a repeat of the original cmake timings):

autotools:
========

  time (sh autogen.sh ; ./configure --prefix=/usr/brlcad/dev-7.21.0) : 1m 51s
  time make -j4 : 13m 1s
  time sudo make install : 1m 46s

  total: 16m 38s

cmake:
======

  time cmake ../brlcad-svn/brlcad-trunk -DBRLCAD_BUNDLED_LIBS=ON       \
       -DBRLCAD_ZLIB=OFF              \
       -DCMAKE_BUILD_TYPE=Rel        \
       -DBRLCAD_ENABLE_OPENGL=ON : 1m 33s

  time make -j4 : 17m 12s
  time sudo make install : 1m 8s

  total: 19m 53s

So, timings are not as far apart as the first time, but my feeling of
a cmake build as slower still seems to be correct.

Best regards,

-Tom