[geos-devel] RFC7 - Use CMake as build system for GEOS

[Regina Obe]

I think there is also the doxygen builds?  Which I recall are only in autotools, but I could be mistaken.

 

From: geos-devel [mailto:geos-devel-bounces at lists.osgeo.org] On Behalf Of Paul Ramsey
Sent: Friday, October 19, 2018 1:39 PM
To: GEOS Development List <geos-devel at lists.osgeo.org>
Subject: Re: [geos-devel] RFC7 - Use CMake as build system for GEOS

 

Or maybe I should attempt to summarize what I recall from the thread that seem to me to be reasonable functional requests before going cmake-only:

 

- make dist generates a distributable tarball

- make check

  - make check runs all tests

  - make check builds test binaries that can be debugged w/o an install

 

More?

 

P

 

 

On Fri, Oct 19, 2018 at 10:36 AM Paul Ramsey <pramsey at cleverelephant.ca <mailto:pramsey at cleverelephant.ca> > wrote:

This conversation seems to have veered off.

Dan asked what I think is a reasonable question:

 

  Is having working 'make dist' and 'make distclean' targets sufficient to move to a cmake-only build, or will the goalposts just shift again to some other metric (like build time, referenced above)? 

 

I have a branch that seems to have an OK 'make dist' target that I'll PR shortly. I'm not sure that 'make distclean' is actually applicable to the cmake build process, since 'distclean' as a target is something that autotools needs to deal with the fact that autotools creates so many build artifacts that aren't wanted in the source bundle. In a cmake build run from a separate build tree (not run "in tree" like autotools) the 'dist' target seems sufficient to our purpose (get a deterministic source tarball) without a 'distclean' but we'll see.

 

I am among those who would (a) like to have one build system and (b) would like cmake to be that build system. 

 

P

 

On Thu, Oct 4, 2018 at 7:41 AM Sandro Santilli <strk at kbt.io <mailto:strk at kbt.io> > wrote:

On Thu, Oct 04, 2018 at 04:16:28PM +0200, Sandro Santilli wrote:

> Install/uninstall steps:
> 
>   build-cmake$ time sudo make install
>   real    0m1.514s
>   user    0m0.403s
>   sys     0m0.232s
> 
>   build-autotools$ time sudo make install
>   real    0m10.302s
>   user    0m9.643s
>   sys     0m0.737s
> 
> Note that the extra time on "make install" for autotools
> is due to some problematic dependency encoded to deal with
> GEOS revision flag, used to build final library (not sure
> a ticket exists for that already)

After fixing the bug in tools/repo_revision.sh these are
the new timings (cmake twice as fast at install):

    build-autotools$ time sudo make install
    real    0m2.905s
    user    0m2.379s
    sys     0m0.595s

--strk;
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