[mapserver-dev] Dropping support for non-GDAL and non-PROJ builds

[Steve Lime]

Seems like a documentation issue. Why not just add something about
requirements to https://mapserver.org/mapcache/install.html. Should GEOS
also be added to list of required software? --Steve

On Fri, Nov 29, 2019 at 10:30 AM Jeff McKenna <jmckenna at gatewaygeomatics.com>
wrote:

> On 2019-11-29 12:13 PM, Even Rouault wrote:
> > On vendredi 29 novembre 2019 12:02:12 CET Jeff McKenna wrote:
> >> Regarding users compiling this, how would they know that GDAL+PROJ are
> >> required, if we remove WITH-GDAL and WITH-PROJ from the cmake syntax?
> >> (those cmake hints are a lifeline for compiling software I find).
> >
> > Exactly as they would figure out for other required dependencies we have
> > already (libpng, libjpeg, libfreetype). cmake will loudly and clearly
> complain
> > about what's wrong:
> >
> > -- Could NOT find PROJ (missing:  PROJ_LIBRARY)
> > CMake Error at CMakeLists.txt:79 (message):
> >    PROJ library/component could not be found and is a mandatory
> dependency
> >
> >      HINT:
> >      - add the PROJ install directory to the CMAKE_PREFIX_PATH variable
> (-
> > DCMAKE_PREFIX_PATH="/path/to/PROJ-install-dir;/path/to/other/dirs"
> > Call Stack (most recent call first):
> >    CMakeLists.txt:390 (report_mandatory_not_found)
> >
>
> I meant besides battling through cmake errors.  cmake command has a
> switch "-LA" that lists all available options (WITH_PHP, WITH_PIXMAN,
> etc) that is very useful when compiling a new software, and learning of
> all its dependencies.  But it sounds like there is no way to tell users
> of these hidden requirements (at least not from my googling).
>
> -jeff
>
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