Make src_dir optional.
Make src_dir optional.

PiperOrigin-RevId: 209220232

gautam1858/tensorflow,asimshankar/tensorflow,renyi533/tensorflow,alsrgv/tensorflow,annarev/tensorflow,gautam1858/tensorflow,arborh/tensorflow,dancingdan/tensorflow,petewarden/tensorflow,sarvex/tensorflow,frreiss/tensorflow-fred,aam-at/tensorflow,gautam1858/tensorflow,kobejean/tensorflow,girving/tensorflow,xzturn/tensorflow,asimshankar/tensorflow,ghchinoy/tensorflow,karllessard/tensorflow,xodus7/tensorflow,kobejean/tensorflow,seanli9jan/tensorflow,DavidNorman/tensorflow,frreiss/tensorflow-fred,kevin-coder/tensorflow-fork,DavidNorman/tensorflow,xodus7/tensorflow,seanli9jan/tensorflow,karllessard/tensorflow,tensorflow/tensorflow-pywrap_saved_model,adit-chandra/tensorflow,renyi533/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,cxxgtxy/tensorflow,dongjoon-hyun/tensorflow,Intel-tensorflow/tensorflow,alsrgv/tensorflow,dancingdan/tensorflow,AnishShah/tensorflow,tensorflow/tensorflow,snnn/tensorflow,seanli9jan/tensorflow,brchiu/tensorflow,snnn/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,gautam1858/tensorflow,petewarden/tensorflow,aam-at/tensorflow,freedomtan/tensorflow,AnishShah/tensorflow,frreiss/tensorflow-fred,Intel-tensorflow/tensorflow,Bismarrck/tensorflow,karllessard/tensorflow,freedomtan/tensorflow,DavidNorman/tensorflow,adit-chandra/tensorflow,gunan/tensorflow,paolodedios/tensorflow,ghchinoy/tensorflow,gunan/tensorflow,freedomtan/tensorflow,ghchinoy/tensorflow,hfp/tensorflow-xsmm,jendap/tensorflow,davidzchen/tensorflow,freedomtan/tensorflow,alsrgv/tensorflow,aam-at/tensorflow,paolodedios/tensorflow,asimshankar/tensorflow,petewarden/tensorflow,Intel-tensorflow/tensorflow,brchiu/tensorflow,dongjoon-hyun/tensorflow,ageron/tensorflow,chemelnucfin/tensorflow,jendap/tensorflow,cxxgtxy/tensorflow,chemelnucfin/tensorflow,DavidNorman/tensorflow,paolodedios/tensorflow,snnn/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,hfp/tensorflow-xsmm,dongjoon-hyun/tensorflow,jendap/tensorflow,gautam1858/tensorflow,aldian/tensorflow,Bismarrck/tensorflow,freedomtan/tensorflow,alshedivat/tensorflow,chemelnucfin/tensorflow,apark263/tensorflow,AnishShah/tensorflow,ageron/tensorflow,kobejean/tensorflow,xzturn/tensorflow,freedomtan/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,annarev/tensorflow,tensorflow/tensorflow,annarev/tensorflow,dongjoon-hyun/tensorflow,theflofly/tensorflow,tensorflow/tensorflow-pywrap_saved_model,hehongliang/tensorflow,tensorflow/tensorflow-pywrap_saved_model,seanli9jan/tensorflow,DavidNorman/tensorflow,alshedivat/tensorflow,petewarden/tensorflow,davidzchen/tensorflow,davidzchen/tensorflow,jendap/tensorflow,hehongliang/tensorflow,kevin-coder/tensorflow-fork,davidzchen/tensorflow,dancingdan/tensorflow,sarvex/tensorflow,ghchinoy/tensorflow,alshedivat/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,frreiss/tensorflow-fred,brchiu/tensorflow,kevin-coder/tensorflow-fork,annarev/tensorflow,dongjoon-hyun/tensorflow,tensorflow/tensorflow,jbedorf/tensorflow,ageron/tensorflow,aam-at/tensorflow,annarev/tensorflow,gunan/tensorflow,theflofly/tensorflow,jhseu/tensorflow,karllessard/tensorflow,dancingdan/tensorflow,Intel-Corporation/tensorflow,alsrgv/tensorflow,ageron/tensorflow,ppwwyyxx/tensorflow,Intel-tensorflow/tensorflow,renyi533/tensorflow,hfp/tensorflow-xsmm,gautam1858/tensorflow,Intel-Corporation/tensorflow,karllessard/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,paolodedios/tensorflow,girving/tensorflow,kevin-coder/tensorflow-fork,adit-chandra/tensorflow,aldian/tensorflow,jbedorf/tensorflow,petewarden/tensorflow,alshedivat/tensorflow,seanli9jan/tensorflow,Bismarrck/tensorflow,davidzchen/tensorflow,asimshankar/tensorflow,alsrgv/tensorflow,AnishShah/tensorflow,xzturn/tensorflow,ppwwyyxx/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,karllessard/tensorflow,kobejean/tensorflow,gautam1858/tensorflow,jendap/tensorflow,renyi533/tensorflow,xodus7/tensorflow,cxxgtxy/tensorflow,Bismarrck/tensorflow,seanli9jan/tensorflow,freedomtan/tensorflow,Intel-tensorflow/tensorflow,jendap/tensorflow,chemelnucfin/tensorflow,arborh/tensorflow,xzturn/tensorflow,chemelnucfin/tensorflow,ageron/tensorflow,theflofly/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,adit-chandra/tensorflow,ghchinoy/tensorflow,yongtang/tensorflow,ghchinoy/tensorflow,kevin-coder/tensorflow-fork,apark263/tensorflow,xzturn/tensorflow,davidzchen/tensorflow,yongtang/tensorflow,petewarden/tensorflow,paolodedios/tensorflow,apark263/tensorflow,aam-at/tensorflow,ageron/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,alsrgv/tensorflow,hfp/tensorflow-xsmm,dongjoon-hyun/tensorflow,tensorflow/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,dongjoon-hyun/tensorflow,Bismarrck/tensorflow,ppwwyyxx/tensorflow,theflofly/tensorflow,aam-at/tensorflow,chemelnucfin/tensorflow,gunan/tensorflow,adit-chandra/tensorflow,jhseu/tensorflow,Bismarrck/tensorflow,petewarden/tensorflow,xzturn/tensorflow,Intel-Corporation/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,alsrgv/tensorflow,AnishShah/tensorflow,xzturn/tensorflow,apark263/tensorflow,jendap/tensorflow,ghchinoy/tensorflow,girving/tensorflow,annarev/tensorflow,annarev/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,hfp/tensorflow-xsmm,tensorflow/tensorflow,chemelnucfin/tensorflow,renyi533/tensorflow,tensorflow/tensorflow,karllessard/tensorflow,sarvex/tensorflow,gautam1858/tensorflow,xzturn/tensorflow,adit-chandra/tensorflow,ppwwyyxx/tensorflow,aam-at/tensorflow,seanli9jan/tensorflow,kevin-coder/tensorflow-fork,xodus7/tensorflow,jhseu/tensorflow,ppwwyyxx/tensorflow,gunan/tensorflow,seanli9jan/tensorflow,xzturn/tensorflow,aam-at/tensorflow,snnn/tensorflow,paolodedios/tensorflow,renyi533/tensorflow,DavidNorman/tensorflow,theflofly/tensorflow,renyi533/tensorflow,karllessard/tensorflow,aldian/tensorflow,Intel-Corporation/tensorflow,hehongliang/tensorflow,alsrgv/tensorflow,jendap/tensorflow,AnishShah/tensorflow,Bismarrck/tensorflow,kevin-coder/tensorflow-fork,xodus7/tensorflow,DavidNorman/tensorflow,tensorflow/tensorflow,yongtang/tensorflow,jhseu/tensorflow,renyi533/tensorflow,paolodedios/tensorflow,gunan/tensorflow,petewarden/tensorflow,tensorflow/tensorflow,freedomtan/tensorflow,adit-chandra/tensorflow,tensorflow/tensorflow-pywrap_saved_model,frreiss/tensorflow-fred,AnishShah/tensorflow,sarvex/tensorflow,brchiu/tensorflow,AnishShah/tensorflow,aldian/tensorflow,seanli9jan/tensorflow,AnishShah/tensorflow,arborh/tensorflow,ppwwyyxx/tensorflow,jbedorf/tensorflow,gunan/tensorflow,chemelnucfin/tensorflow,dancingdan/tensorflow,kobejean/tensorflow,sarvex/tensorflow,dancingdan/tensorflow,davidzchen/tensorflow,theflofly/tensorflow,apark263/tensorflow,renyi533/tensorflow,theflofly/tensorflow,aldian/tensorflow,dongjoon-hyun/tensorflow,dancingdan/tensorflow,annarev/tensorflow,jendap/tensorflow,ppwwyyxx/tensorflow,alshedivat/tensorflow,chemelnucfin/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,cxxgtxy/tensorflow,cxxgtxy/tensorflow,tensorflow/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-pywrap_saved_model,aldian/tensorflow,freedomtan/tensorflow,AnishShah/tensorflow,chemelnucfin/tensorflow,freedomtan/tensorflow,snnn/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,alshedivat/tensorflow,petewarden/tensorflow,theflofly/tensorflow,tensorflow/tensorflow-pywrap_saved_model,renyi533/tensorflow,hehongliang/tensorflow,girving/tensorflow,aldian/tensorflow,chemelnucfin/tensorflow,karllessard/tensorflow,ageron/tensorflow,alshedivat/tensorflow,kobejean/tensorflow,hfp/tensorflow-xsmm,adit-chandra/tensorflow,arborh/tensorflow,davidzchen/tensorflow,tensorflow/tensorflow-pywrap_saved_model,arborh/tensorflow,ghchinoy/tensorflow,kevin-coder/tensorflow-fork,tensorflow/tensorflow,freedomtan/tensorflow,hfp/tensorflow-xsmm,apark263/tensorflow,seanli9jan/tensorflow,alsrgv/tensorflow,alshedivat/tensorflow,ghchinoy/tensorflow,arborh/tensorflow,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow-pywrap_saved_model,theflofly/tensorflow,gunan/tensorflow,brchiu/tensorflow,asimshankar/tensorflow,hfp/tensorflow-xsmm,adit-chandra/tensorflow,girving/tensorflow,cxxgtxy/tensorflow,karllessard/tensorflow,ppwwyyxx/tensorflow,adit-chandra/tensorflow,AnishShah/tensorflow,dongjoon-hyun/tensorflow,davidzchen/tensorflow,gautam1858/tensorflow,paolodedios/tensorflow,gunan/tensorflow,kobejean/tensorflow,jendap/tensorflow,DavidNorman/tensorflow,ageron/tensorflow,arborh/tensorflow,asimshankar/tensorflow,arborh/tensorflow,alshedivat/tensorflow,ppwwyyxx/tensorflow,dongjoon-hyun/tensorflow,gunan/tensorflow,hehongliang/tensorflow,yongtang/tensorflow,alsrgv/tensorflow,yongtang/tensorflow,Intel-Corporation/tensorflow,Intel-Corporation/tensorflow,theflofly/tensorflow,jbedorf/tensorflow,jhseu/tensorflow,yongtang/tensorflow,aam-at/tensorflow,xzturn/tensorflow,dongjoon-hyun/tensorflow,jbedorf/tensorflow,paolodedios/tensorflow,jbedorf/tensorflow,renyi533/tensorflow,ageron/tensorflow,kobejean/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,theflofly/tensorflow,aldian/tensorflow,cxxgtxy/tensorflow,davidzchen/tensorflow,paolodedios/tensorflow,brchiu/tensorflow,xodus7/tensorflow,apark263/tensorflow,aam-at/tensorflow,brchiu/tensorflow,kobejean/tensorflow,yongtang/tensorflow,kevin-coder/tensorflow-fork,frreiss/tensorflow-fred,Intel-Corporation/tensorflow,apark263/tensorflow,seanli9jan/tensorflow,girving/tensorflow,snnn/tensorflow,Intel-Corporation/tensorflow,tensorflow/tensorflow-pywrap_saved_model,hfp/tensorflow-xsmm,sarvex/tensorflow,ageron/tensorflow,brchiu/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,frreiss/tensorflow-fred,gunan/tensorflow,Intel-tensorflow/tensorflow,jhseu/tensorflow,alshedivat/tensorflow,alshedivat/tensorflow,frreiss/tensorflow-fred,theflofly/tensorflow,jbedorf/tensorflow,kobejean/tensorflow,xzturn/tensorflow,frreiss/tensorflow-fred,jhseu/tensorflow,kevin-coder/tensorflow-fork,snnn/tensorflow,asimshankar/tensorflow,petewarden/tensorflow,xzturn/tensorflow,apark263/tensorflow,Intel-tensorflow/tensorflow,gautam1858/tensorflow,jhseu/tensorflow,girving/tensorflow,asimshankar/tensorflow,sarvex/tensorflow,jbedorf/tensorflow,yongtang/tensorflow,davidzchen/tensorflow,yongtang/tensorflow,brchiu/tensorflow,arborh/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-experimental_link_static_libraries_once,adit-chandra/tensorflow,ageron/tensorflow,jbedorf/tensorflow,ppwwyyxx/tensorflow,jhseu/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,arborh/tensorflow,frreiss/tensorflow-fred,ppwwyyxx/tensorflow,asimshankar/tensorflow,jbedorf/tensorflow,dancingdan/tensorflow,brchiu/tensorflow,brchiu/tensorflow,girving/tensorflow,xodus7/tensorflow,ageron/tensorflow,adit-chandra/tensorflow,renyi533/tensorflow,ghchinoy/tensorflow,alsrgv/tensorflow,freedomtan/tensorflow,apark263/tensorflow,dancingdan/tensorflow,Bismarrck/tensorflow,jendap/tensorflow,gunan/tensorflow,sarvex/tensorflow,frreiss/tensorflow-fred,snnn/tensorflow,asimshankar/tensorflow,Intel-tensorflow/tensorflow,annarev/tensorflow,petewarden/tensorflow,kobejean/tensorflow,karllessard/tensorflow,paolodedios/tensorflow,arborh/tensorflow,Intel-tensorflow/tensorflow,Bismarrck/tensorflow,frreiss/tensorflow-fred,xodus7/tensorflow,Bismarrck/tensorflow,DavidNorman/tensorflow,xodus7/tensorflow,jbedorf/tensorflow,snnn/tensorflow,hfp/tensorflow-xsmm,ppwwyyxx/tensorflow,DavidNorman/tensorflow,gautam1858/tensorflow,davidzchen/tensorflow,ghchinoy/tensorflow,tensorflow/tensorflow-pywrap_saved_model,jbedorf/tensorflow,girving/tensorflow,alsrgv/tensorflow,Intel-tensorflow/tensorflow,DavidNorman/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,jhseu/tensorflow,xodus7/tensorflow,kevin-coder/tensorflow-fork,girving/tensorflow,annarev/tensorflow,DavidNorman/tensorflow,apark263/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,cxxgtxy/tensorflow,aam-at/tensorflow,aam-at/tensorflow,jhseu/tensorflow,arborh/tensorflow,Bismarrck/tensorflow,petewarden/tensorflow,snnn/tensorflow,jhseu/tensorflow,asimshankar/tensorflow,annarev/tensorflow,hehongliang/tensorflow,hehongliang/tensorflow,hfp/tensorflow-xsmm,dancingdan/tensorflow,chemelnucfin/tensorflow,girving/tensorflow,dancingdan/tensorflow,ghchinoy/tensorflow,snnn/tensorflow,xodus7/tensorflow