proj @5.0.0 has many problems: reinsert the previous version 4.9.3

[news24lor]

Hi Proj is the base library of many GIS software like QGIS and QGIS 3 but the new version, 5.0.0, has many bug that cause error in GIS software. Problems are solved if MacPorts re-introduces the previous version, 4.9.3, which is very stable and works.

Thanks

[ryandesign (Ryan Carsten Schmidt)]

Could you be more specific about the problems?

We already offer a proj47 port for the old 4.7.0 version. Maybe we need to also offer a proj49 port for the old 4.9.3 version.

[news24lor]

Hi

It has a bug in version 5.0. It is written on different mailing-lists:

​https://lists.osgeo.org/pipermail/qgis-developer/2018-March/052501.htm

The problem is that in QGIS, compiled with PROJ 5.0.0, it is not possible to re-project two maps with different coordinates: one is shifted. Of course it makes QGIS unusable. If the same QGIS is compiled with PROJ 4.9.3, the very stable and reliable old version, everything works perfectly. I managed to do this in MacPorts by keeping the old 4.9.3 and recompile and everything works well.
The developer talks about a fix in April with version 5.0.1 but PROJ 5 is really very new and has changed deeply. For some time to be able to use QGIS and QGIS3, but GRASS too is preferable to use version 4.9.3, then in a while, when these very limiting bugs are fixed, everything will move to version 5.x.
Or as you say you offer proj49 activated instead of proj50 to compile QGIS and other software.

[chrstphrchvz (Christopher Chavez)]

proj4 contains version 4.9.3. I believe this can be closed.