Fails to run on late 2009 iMac with "ERROR: 0:46: '' : version '130' is not supported"

[mkae]

Although the BRDF explorer built and ran fine (after a little .pro file tweaking) it fails when trying to get it to output a 3D graph with this:

ERROR: 0:46: '' :  version '130' is not supported
WARNING: 0:47: extension 'EXT_gpu_shader4' is not supported

System: late 2009-iMac running OSX 10.10 with additional libs installed via MacPorts
Graphics card built-in: ATI Radeon HD 4670 256 MB

[mkae]

More error output:

Starting /Users/marko/WC/GIT/brdf/src/brdf/brdf.app/Contents/MacOS/brdf...
libpng warning: iCCP: known incorrect sRGB profile
.
.
.
OpenGL Error invalid operation (1282) in file IBLWidget.cpp:622
2016-02-09 23:52:52.193 brdf[71679:2471742] Layout still needs update after calling -[FI_TListScrollView layout].  FI_TListScrollView or one of its superclasses may have overridden -layout without calling super. Or, something may have dirtied layout in the middle of updating it.  Both are programming errors in Cocoa Autolayout.  The former is pretty likely to arise if some pre-Cocoa Autolayout class had a method called layout, but it should be fixed.