get rid of C compiler warning
get rid of C compiler warning

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