Fix build_dir extended test case.
Fix build_dir extended test case.

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