[PostGIS] #6134: visual examples can't be built if sfcgal is not enabled

[PostGIS]

#6134: visual examples can't be built if sfcgal is not enabled
---------------------+---------------------------
 Reporter:  strk     |      Owner:  strk
     Type:  defect   |     Status:  new
 Priority:  blocker  |  Milestone:  PostGIS 3.7.0
Component:  build    |    Version:  master
 Keywords:           |
---------------------+---------------------------
 I can't build visual examples successfully due to SFCGAL not being
 available:
 {{{
 manual visual examples processed: 644/644
 FAILED 45 example(s): ST_CoverageClean:32019, ST_CoverageEdges:32174,
 ST_CoverageEdges:32190, ST_MinimumSpanningTree:33411, CG_ForceLHR:37798,
 CG_IsSolid:37935, CG_Area:38090, CG_Intersection:38316,
 CG_Intersects:38378, CG_Intersects:38380, CG_3DIntersects:38437,
 CG_Difference:38495, CG_Distance:38650, CG_3DDistance:38707,
 CG_3DConvexHull:38778, CG_3DConvexHull:38786, CG_3DIntersection:38877,
 CG_3DIntersection:38888, CG_Union:38967, CG_ApproxConvexPartition:39241,
 CG_Extrude:39953, CG_Extrude:39968, CG_GreeneApproxConvexPartition:40091,
 CG_MinkowskiSum:40146, CG_MinkowskiSum:40157,
 CG_OptimalConvexPartition:40301, CG_StraightSkeleton:40374,
 CG_StraightSkeleton:40381, CG_Tesselate:40461, CG_Tesselate:40472,
 CG_Triangulate:40525, CG_Visibility:40607, CG_Visibility:40617,
 CG_YMonotonePartition:40674, CG_Rotate:40841, CG_2DRotate:40883,
 CG_3DRotate:40933, CG_RotateX:40980, CG_RotateY:41027, CG_RotateZ:41074,
 CG_Scale:41113, CG_3DScale:41162, CG_3DScaleAroundCenter:41213,
 CG_Translate:41253, CG_3DTranslate:41301
 }}}

 In turn this doesn't let me build the html docs ( #6113 )
-- 
Ticket URL: <https://trac.osgeo.org/postgis/ticket/6134>
PostGIS <http://trac.osgeo.org/postgis/>
The PostGIS Trac is used for bug, enhancement & task tracking, a user and developer wiki, and a view into the subversion code repository of PostGIS project.