Add -lgfortran flag to gcc call in a makefile
Add -lgfortran flag to gcc call in a makefile

Adding $(EXTRALIB) adds this flag when things are built with
msys2 on windows. Without this the build fails.

buffer51/OpenBLAS,CVML/OpenBLAS,castoryan/OpenBLAS,Chasego/OpenBLAS,bitfusionio/OpenBLAS,xianyi/OpenBLAS,hpanderson/OpenBLAS,kortschak/OpenBLAS,zhmz90/OpenBLAS,zhmz90/OpenBLAS,otbrown/OpenBLAS,otbrown/OpenBLAS,LeoOnHack/OpenBLAS,hpanderson/OpenBLAS,LeoOnHack/OpenBLAS,castoryan/OpenBLAS,kortschak/OpenBLAS,aliefweb/openblas,bitfusionio/OpenBLAS,castoryan/OpenBLAS,MjAbuz/OpenBLAS,otbrown/OpenBLAS,grisuthedragon/OpenBLAS,CVML/OpenBLAS,CVML/OpenBLAS,CVML/OpenBLAS,yuyichao/OpenBLAS,MjAbuz/OpenBLAS,Chasego/OpenBLAS,grisuthedragon/OpenBLAS,hpanderson/OpenBLAS,kortschak/OpenBLAS,hpanderson/OpenBLAS,Chasego/OpenBLAS,alongwithyou/OpenBLAS,buffer51/OpenBLAS,LeoOnHack/OpenBLAS,zhmz90/OpenBLAS,xianyi/OpenBLAS,aliefweb/openblas,bitfusionio/OpenBLAS,castoryan/OpenBLAS,kortschak/OpenBLAS,aliefweb/openblas,yuyichao/OpenBLAS,zhmz90/OpenBLAS,yuyichao/OpenBLAS,LeoOnHack/OpenBLAS,otbrown/OpenBLAS,hpanderson/OpenBLAS,Chasego/OpenBLAS,yuyichao/OpenBLAS,Chasego/OpenBLAS,CVML/OpenBLAS,bitfusionio/OpenBLAS,buffer51/OpenBLAS,bitfusionio/OpenBLAS,MjAbuz/OpenBLAS,CVML/OpenBLAS,kortschak/OpenBLAS,xianyi/OpenBLAS,buffer51/OpenBLAS,xianyi/OpenBLAS,yuyichao/OpenBLAS,castoryan/OpenBLAS,otbrown/OpenBLAS,bitfusionio/OpenBLAS,LeoOnHack/OpenBLAS,alongwithyou/OpenBLAS,MjAbuz/OpenBLAS,LeoOnHack/OpenBLAS,zhmz90/OpenBLAS,yuyichao/OpenBLAS,xianyi/OpenBLAS,castoryan/OpenBLAS,MjAbuz/OpenBLAS,xianyi/OpenBLAS,alongwithyou/OpenBLAS,MjAbuz/OpenBLAS,zhmz90/OpenBLAS,aliefweb/openblas,Chasego/OpenBLAS,grisuthedragon/OpenBLAS,Chasego/OpenBLAS,Chasego/OpenBLAS,kortschak/OpenBLAS,xianyi/OpenBLAS,alongwithyou/OpenBLAS,zhmz90/OpenBLAS,alongwithyou/OpenBLAS,grisuthedragon/OpenBLAS,alongwithyou/OpenBLAS,otbrown/OpenBLAS,alongwithyou/OpenBLAS,LeoOnHack/OpenBLAS,alongwithyou/OpenBLAS,castoryan/OpenBLAS,bitfusionio/OpenBLAS,zhmz90/OpenBLAS,buffer51/OpenBLAS,otbrown/OpenBLAS,alongwithyou/OpenBLAS,LeoOnHack/OpenBLAS,grisuthedragon/OpenBLAS,yuyichao/OpenBLAS,yuyichao/OpenBLAS,grisuthedragon/OpenBLAS,kortschak/OpenBLAS,yuyichao/OpenBLAS,CVML/OpenBLAS,xianyi/OpenBLAS,kortschak/OpenBLAS,otbrown/OpenBLAS,zhmz90/OpenBLAS,MjAbuz/OpenBLAS,CVML/OpenBLAS,buffer51/OpenBLAS,buffer51/OpenBLAS,aliefweb/openblas,castoryan/OpenBLAS,otbrown/OpenBLAS,CVML/OpenBLAS,castoryan/OpenBLAS,grisuthedragon/OpenBLAS,LeoOnHack/OpenBLAS,Chasego/OpenBLAS,buffer51/OpenBLAS,grisuthedragon/OpenBLAS,kortschak/OpenBLAS