qwt version check missing?

[Randrianasulu]

I tried to compile latest git on Slackware 15.0 i586 + Slackbuilds.org provided QWT

It mostly worked after I tweaked Makefile for gui part a bit

but there was this error

../../../Source/GUI/Plot.cpp:288:49: error: 'WeedOutIntermediatePoints' is not a member of 'QwtPointMapper'                                                                                             288 |                 mapper.setFlag( QwtPointMapper::WeedOutIntermediatePoints,                       |                                                 ^~~~~~~~~~~~~~~~~~~~~~~~~                  ../../../Source/GUI/Plot.cpp:289:52: error: 'FilterPointsAggressive' was not declared in this scope  289 |                                testPaintAttribute( FilterPointsAggressive ) );                   |                                                    ^~~~~~~~~~~~~~~~~~~~~~                  ../../../Source/GUI/Plot.cpp:294:52: error: 'FilterPointsAggressive' was not declared in this scope  294 |                                testPaintAttribute( FilterPointsAggressive ) );                   |                                                    ^~~~~~~~~~~~~~~~~~~~~~

I just commented out those calls, but I guess this us suboptimal

git commit commit 987faf1

qwt version: qwt-6.1.6-i586-3_SBo

not sure how important this report, I see no discussions on this repo ;)

ps: thanks for all work put into this tool!