meson.build: test opencascade with as-needed

so that we do not need unneccessary packages

meson.build

@@ -28,7 +28,7 @@ if not opencascade.found()
     opencascade = dependency('OCE', method : 'cmake')
 endif
 
-if not cxx.links('int main(void) {return 0;}', dependencies: opencascade)
+if not cxx.links('int main(void) {return 0;}', dependencies: opencascade, args:'-Wl,--as-needed')
     message('opencascade link args are broken, replacing')
     # on ubuntu 20.04, the link args are broken and are missing the -l for some reason??
     opencascade = declare_dependency(dependencies: opencascade.partial_dependency(compile_args: true, includes:true), link_args:['-lTKSTEP', '-lTKernel', '-lTKXCAF', '-lTKXSBase', '-lTKBRep', '-lTKCDF', '-lTKXDESTEP', '-lTKLCAF', '-lTKMath', '-lTKMesh', '-lTKTopAlgo', '-lTKPrim', '-lTKBO', '-lTKShHealing', '-lTKBRep', '-lTKG3d', '-lTKGeomBase', '-lTKHLR'])