work around C compiler warning about unused label in optimised list/tuple looping code
work around C compiler warning about unused label in optimised list/tuple looping code

madjar/cython,encukou/cython,fperez/cython,madjar/cython,larsmans/cython,madjar/cython,fperez/cython,marscher/cython,marscher/cython,hhsprings/cython,c-blake/cython,fperez/cython,mrGeen/cython,scoder/cython,mrGeen/cython,da-woods/cython,hickford/cython,madjar/cython,acrispin/cython,marscher/cython,mrGeen/cython,da-woods/cython,marscher/cython,achernet/cython,ABcDexter/cython,mcanthony/cython,acrispin/cython,JelleZijlstra/cython,madjar/cython,slonik-az/cython,dahebolangkuan/cython,fperez/cython,cython/cython,JelleZijlstra/cython,andreasvc/cython,da-woods/cython,ABcDexter/cython,dahebolangkuan/cython,JelleZijlstra/cython,roxyboy/cython,encukou/cython,mcanthony/cython,scoder/cython,roxyboy/cython,c-blake/cython,c-blake/cython,ABcDexter/cython,encukou/cython,achernet/cython,larsmans/cython,hhsprings/cython,ABcDexter/cython,fabianrost84/cython,slonik-az/cython,ChristopherHogan/cython,fabianrost84/cython,JelleZijlstra/cython,acrispin/cython,cython/cython,hhsprings/cython,larsmans/cython,fperez/cython,fabianrost84/cython,c-blake/cython,slonik-az/cython,mcanthony/cython,JelleZijlstra/cython,marscher/cython,achernet/cython,roxyboy/cython,andreasvc/cython,scoder/cython,larsmans/cython,cython/cython,mrGeen/cython,dahebolangkuan/cython,hickford/cython,hhsprings/cython,andreasvc/cython,ChristopherHogan/cython,acrispin/cython,fabianrost84/cython,mcanthony/cython,andreasvc/cython,ChristopherHogan/cython,andreasvc/cython,hickford/cython,slonik-az/cython,cython/cython,ABcDexter/cython,fabianrost84/cython,mcanthony/cython,hickford/cython,scoder/cython,hhsprings/cython,roxyboy/cython,dahebolangkuan/cython,encukou/cython,achernet/cython,acrispin/cython,larsmans/cython,slonik-az/cython,achernet/cython,da-woods/cython,hickford/cython,c-blake/cython,mrGeen/cython,dahebolangkuan/cython,roxyboy/cython,encukou/cython