[mapserver-dev] Proposal/request to implement FlatGeobuf as built-in format

[Even Rouault]

Le 20/05/2022 à 19:00, Björn Harrtell a écrit :
> For the record I can't see the #define trick as reasonable/acceptable 
> if i understand it correctly.

If you're saying it is not elegant, obviously, it isn't, but that works. 
Or is your concern something else ? All that pertains to the 
https://en.wikipedia.org/wiki/One_Definition_Rule

Basically the idea would be that MapServer set some defines that 
override the default FlatGeobuf & flatbuffers namespaces

An example of that in another project is in 
https://github.com/SAP/odbc-cpp-wrapper/pull/29/files and 
https://github.com/qgis/QGIS/commit/adcb45971bb84a40d909b43d4aace292e8d06e70 
: here the potential conflict was between the embedded copy of the 
odbc-cpp-wrapper library in QGIS, and the external odbc-cpp-wrapper 
library that the GDAL SAP Hana driver can link to.

The only other way of solving that would be for GDAL and MapServer to 
link to an external & identical version of FlatGeobuf & flatbuffers 
libraries, but that would require them to be packaged etc, which 
wouldn't be very practical.

Even

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