[geos-devel] RFC7: Discontinue use of autotools

[Greg Troxel]

Sebastiaan Couwenberg <sebastic at xs4all.nl> writes:

> On 1/10/21 2:44 AM, Daniel Baston wrote:
>>>
>>> Make the CMake build adhere to CMAKE_INSTALL_LIBDIR so that multiarch
>>> keeps working,
>> 
>> 
>> I created a pull request for this at
>> https://github.com/libgeos/geos/pull/380
>> 
>> Have CMAKE_BUILD_TYPE=None define NDEBUG so that assert() is removed
>>> from the code, thereby not storing the buildpath in the binaries helping
>>> reproducible builds.
>>>
>> 
>> If you don't specify CMAKE_BUILD_TYPE it defaults to Release, and NDEBUG
>> will be defined.
>
> But then -g is not used and there will be no debug symbols.
> RelWithDebInfo is more what we need.
>
>> Do you mean that we should define a new build type called
>> "None" ?
>
> It is used to have the buildflags set in the environment determine
> optimization etc.
>
> CMake apparently uses the absolute path for __FILE__ whereas Autotools
> uses the path relative to the Makefile. Hence we get
> file-references-package-build-path issues after switching a package to
> use the cmake buildsystem.

So it seems that 'drop autotools' is not ready for prime time, until
packaging systems can switch and report no residual issues/regressions.

FWIW, pkgsrc is also using autotools to build.   I can try to switch it
to cmake and see how that goes.   I'll be doing that on the most recent
release, of course, for starters.
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