[CMake] Generalize FreeBSD build rather than hardcoding version '10'.
[CMake] Generalize FreeBSD build rather than hardcoding version '10'.

CodaFi/swift,alblue/swift,danielmartin/swift,gribozavr/swift,JaSpa/swift,codestergit/swift,lorentey/swift,harlanhaskins/swift,lorentey/swift,kstaring/swift,gregomni/swift,natecook1000/swift,glessard/swift,gottesmm/swift,Jnosh/swift,calebd/swift,stephentyrone/swift,ken0nek/swift,MukeshKumarS/Swift,codestergit/swift,apple/swift,devincoughlin/swift,kperryua/swift,atrick/swift,therealbnut/swift,tardieu/swift,shajrawi/swift,practicalswift/swift,roambotics/swift,hughbe/swift,karwa/swift,johnno1962d/swift,karwa/swift,JaSpa/swift,aschwaighofer/swift,tkremenek/swift,ben-ng/swift,alblue/swift,rudkx/swift,therealbnut/swift,alblue/swift,xwu/swift,swiftix/swift,sschiau/swift,stephentyrone/swift,KrishMunot/swift,amraboelela/swift,xwu/swift,ken0nek/swift,russbishop/swift,manavgabhawala/swift,jmgc/swift,practicalswift/swift,johnno1962d/swift,hughbe/swift,Jnosh/swift,alblue/swift,allevato/swift,SwiftAndroid/swift,modocache/swift,kperryua/swift,hooman/swift,gribozavr/swift,felix91gr/swift,huonw/swift,kstaring/swift,bitjammer/swift,arvedviehweger/swift,airspeedswift/swift,shahmishal/swift,lorentey/swift,ahoppen/swift,JaSpa/swift,OscarSwanros/swift,jtbandes/swift,codestergit/swift,harlanhaskins/swift,MukeshKumarS/Swift,gmilos/swift,stephentyrone/swift,IngmarStein/swift,parkera/swift,johnno1962d/swift,arvedviehweger/swift,danielmartin/swift,manavgabhawala/swift,natecook1000/swift,allevato/swift,slavapestov/swift,huonw/swift,tardieu/swift,codestergit/swift,milseman/swift,shajrawi/swift,jopamer/swift,glessard/swift,xedin/swift,jopamer/swift,deyton/swift,lorentey/swift,brentdax/swift,CodaFi/swift,tardieu/swift,tardieu/swift,frootloops/swift,lorentey/swift,tardieu/swift,OscarSwanros/swift,tjw/swift,karwa/swift,JGiola/swift,gottesmm/swift,OscarSwanros/swift,dduan/swift,tkremenek/swift,lorentey/swift,shajrawi/swift,tkremenek/swift,felix91gr/swift,OscarSwanros/swift,austinzheng/swift,milseman/swift,stephentyrone/swift,modocache/swift,swiftix/swift,SwiftAndroid/swift,JaSpa/swift,milseman/swift,CodaFi/swift,lorentey/swift,xedin/swift,tinysun212/swift-windows,deyton/swift,allevato/swift,uasys/swift,roambotics/swift,parkera/swift,arvedviehweger/swift,xwu/swift,kperryua/swift,sschiau/swift,djwbrown/swift,djwbrown/swift,deyton/swift,milseman/swift,IngmarStein/swift,nathawes/swift,jopamer/swift,uasys/swift,gregomni/swift,gregomni/swift,ken0nek/swift,atrick/swift,jopamer/swift,bitjammer/swift,xwu/swift,harlanhaskins/swift,stephentyrone/swift,ahoppen/swift,ken0nek/swift,jmgc/swift,gottesmm/swift,practicalswift/swift,atrick/swift,devincoughlin/swift,devincoughlin/swift,zisko/swift,kperryua/swift,jtbandes/swift,djwbrown/swift,hooman/swift,therealbnut/swift,airspeedswift/swift,therealbnut/swift,amraboelela/swift,slavapestov/swift,OscarSwanros/swift,natecook1000/swift,JGiola/swift,arvedviehweger/swift,brentdax/swift,sschiau/swift,kstaring/swift,deyton/swift,zisko/swift,karwa/swift,austinzheng/swift,MukeshKumarS/Swift,JGiola/swift,devincoughlin/swift,johnno1962d/swift,zisko/swift,tjw/swift,apple/swift,ahoppen/swift,frootloops/swift,therealbnut/swift,apple/swift,jckarter/swift,hooman/swift,IngmarStein/swift,atrick/swift,nathawes/swift,gmilos/swift,zisko/swift,austinzheng/swift,parkera/swift,modocache/swift,CodaFi/swift,devincoughlin/swift,jckarter/swift,manavgabhawala/swift,amraboelela/swift,russbishop/swift,parkera/swift,modocache/swift,dduan/swift,practicalswift/swift,kstaring/swift,frootloops/swift,gottesmm/swift,gribozavr/swift,OscarSwanros/swift,benlangmuir/swift,ahoppen/swift,sschiau/swift,karwa/swift,jtbandes/swift,practicalswift/swift,amraboelela/swift,CodaFi/swift,sschiau/swift,shajrawi/swift,xedin/swift,KrishMunot/swift,hughbe/swift,tinysun212/swift-windows,jmgc/swift,calebd/swift,calebd/swift,natecook1000/swift,roambotics/swift,uasys/swift,jopamer/swift,hooman/swift,codestergit/swift,frootloops/swift,uasys/swift,danielmartin/swift,harlanhaskins/swift,MukeshKumarS/Swift,KrishMunot/swift,aschwaighofer/swift,dreamsxin/swift,jopamer/swift,sschiau/swift,ben-ng/swift,codestergit/swift,djwbrown/swift,SwiftAndroid/swift,glessard/swift,apple/swift,johnno1962d/swift,adrfer/swift,russbishop/swift,alblue/swift,benlangmuir/swift,gribozavr/swift,natecook1000/swift,huonw/swift,hooman/swift,aschwaighofer/swift,xedin/swift,IngmarStein/swift,deyton/swift,bitjammer/swift,benlangmuir/swift,roambotics/swift,glessard/swift,gmilos/swift,zisko/swift,JaSpa/swift,gottesmm/swift,ken0nek/swift,Jnosh/swift,devincoughlin/swift,bitjammer/swift,xedin/swift,jckarter/swift,ben-ng/swift,jtbandes/swift,benlangmuir/swift,rudkx/swift,shahmishal/swift,return/swift,benlangmuir/swift,xedin/swift,shahmishal/swift,swiftix/swift,huonw/swift,aschwaighofer/swift,karwa/swift,shahmishal/swift,tjw/swift,tkremenek/swift,jmgc/swift,dreamsxin/swift,ben-ng/swift,shajrawi/swift,nathawes/swift,OscarSwanros/swift,airspeedswift/swift,manavgabhawala/swift,gmilos/swift,frootloops/swift,glessard/swift,harlanhaskins/swift,calebd/swift,kstaring/swift,Jnosh/swift,harlanhaskins/swift,jmgc/swift,return/swift,swiftix/swift,deyton/swift,adrfer/swift,karwa/swift,SwiftAndroid/swift,return/swift,dduan/swift,gottesmm/swift,Jnosh/swift,huonw/swift,stephentyrone/swift,shajrawi/swift,adrfer/swift,roambotics/swift,natecook1000/swift,hughbe/swift,adrfer/swift,airspeedswift/swift,devincoughlin/swift,IngmarStein/swift,gribozavr/swift,gribozavr/swift,amraboelela/swift,sschiau/swift,sschiau/swift,ben-ng/swift,airspeedswift/swift,rudkx/swift,uasys/swift,frootloops/swift,tjw/swift,aschwaighofer/swift,bitjammer/swift,brentdax/swift,parkera/swift,calebd/swift,dduan/swift,jckarter/swift,KrishMunot/swift,bitjammer/swift,slavapestov/swift,parkera/swift,nathawes/swift,SwiftAndroid/swift,swiftix/swift,deyton/swift,JGiola/swift,frootloops/swift,nathawes/swift,johnno1962d/swift,JGiola/swift,shajrawi/swift,dduan/swift,KrishMunot/swift,gmilos/swift,tinysun212/swift-windows,rudkx/swift,russbishop/swift,uasys/swift,atrick/swift,therealbnut/swift,CodaFi/swift,airspeedswift/swift,IngmarStein/swift,return/swift,austinzheng/swift,tardieu/swift,gmilos/swift,austinzheng/swift,djwbrown/swift,practicalswift/swift,felix91gr/swift,atrick/swift,gmilos/swift,allevato/swift,gribozavr/swift,johnno1962d/swift,therealbnut/swift,tkremenek/swift,adrfer/swift,CodaFi/swift,JaSpa/swift,calebd/swift,alblue/swift,alblue/swift,gregomni/swift,russbishop/swift,brentdax/swift,return/swift,benlangmuir/swift,uasys/swift,arvedviehweger/swift,xwu/swift,glessard/swift,jckarter/swift,russbishop/swift,Jnosh/swift,rudkx/swift,brentdax/swift,codestergit/swift,kstaring/swift,xedin/swift,tjw/swift,hooman/swift,JGiola/swift,stephentyrone/swift,kperryua/swift,slavapestov/swift,allevato/swift,swiftix/swift,austinzheng/swift,tardieu/swift,KrishMunot/swift,amraboelela/swift,huonw/swift,dduan/swift,SwiftAndroid/swift,aschwaighofer/swift,tkremenek/swift,return/swift,jckarter/swift,KrishMunot/swift,allevato/swift,ken0nek/swift,kperryua/swift,danielmartin/swift,practicalswift/swift,jmgc/swift,gribozavr/swift,aschwaighofer/swift,adrfer/swift,gottesmm/swift,tinysun212/swift-windows,shahmishal/swift,hughbe/swift,SwiftAndroid/swift,airspeedswift/swift,slavapestov/swift,MukeshKumarS/Swift,felix91gr/swift,brentdax/swift,danielmartin/swift,slavapestov/swift,gregomni/swift,swiftix/swift,kstaring/swift,roambotics/swift,calebd/swift,milseman/swift,tinysun212/swift-windows,shahmishal/swift,zisko/swift,jtbandes/swift,IngmarStein/swift,tkremenek/swift,hughbe/swift,djwbrown/swift,modocache/swift,jmgc/swift,adrfer/swift,manavgabhawala/swift,allevato/swift,felix91gr/swift,kperryua/swift,danielmartin/swift,bitjammer/swift,huonw/swift,manavgabhawala/swift,manavgabhawala/swift,ben-ng/swift,apple/swift,felix91gr/swift,arvedviehweger/swift,slavapestov/swift,Jnosh/swift,tjw/swift,natecook1000/swift,zisko/swift,gregomni/swift,nathawes/swift,jopamer/swift,jtbandes/swift,tinysun212/swift-windows,tinysun212/swift-windows,harlanhaskins/swift,apple/swift,russbishop/swift,danielmartin/swift,xwu/swift,felix91gr/swift,milseman/swift,modocache/swift,hughbe/swift,modocache/swift,milseman/swift,ben-ng/swift,nathawes/swift,tjw/swift,karwa/swift,devincoughlin/swift,xwu/swift,arvedviehweger/swift,jtbandes/swift,shajrawi/swift,hooman/swift,MukeshKumarS/Swift,xedin/swift,JaSpa/swift,rudkx/swift,ahoppen/swift,amraboelela/swift,shahmishal/swift,practicalswift/swift,jckarter/swift,djwbrown/swift,return/swift,brentdax/swift,ken0nek/swift,parkera/swift,MukeshKumarS/Swift,lorentey/swift,austinzheng/swift,dduan/swift,parkera/swift,shahmishal/swift,ahoppen/swift