Make it a warning, not an error, if the version date cannot be determined This happens when the build tree is a link-tree to the source tree, because lndir will normally omit the _darcs directory.
Make it a warning, not an error, if the version date cannot be determined
This happens when the build tree is a link-tree to the source tree,
because lndir will normally omit the _darcs directory.

vTurbine/ghc,urbanslug/ghc,mfine/ghc,nathyong/microghc-ghc,siddhanathan/ghc,ezyang/ghc,lukexi/ghc-7.8-arm64,frantisekfarka/ghc-dsi,AlexanderPankiv/ghc,sgillespie/ghc,ekmett/ghc,siddhanathan/ghc,nomeata/ghc,nushio3/ghc,ghc-android/ghc,hferreiro/replay,bitemyapp/ghc,bitemyapp/ghc,ryantm/ghc,da-x/ghc,ghc-android/ghc,lukexi/ghc,mcschroeder/ghc,holzensp/ghc,lukexi/ghc,anton-dessiatov/ghc,olsner/ghc,green-haskell/ghc,gcampax/ghc,vTurbine/ghc,TomMD/ghc,hferreiro/replay,ml9951/ghc,AlexanderPankiv/ghc,ryantm/ghc,sgillespie/ghc,nkaretnikov/ghc,mfine/ghc,sdiehl/ghc,olsner/ghc,fmthoma/ghc,TomMD/ghc,ml9951/ghc,nomeata/ghc,da-x/ghc,snoyberg/ghc,elieux/ghc,nkaretnikov/ghc,fmthoma/ghc,siddhanathan/ghc,jstolarek/ghc,hferreiro/replay,gridaphobe/ghc,sdiehl/ghc,anton-dessiatov/ghc,sdiehl/ghc,tjakway/ghcjvm,frantisekfarka/ghc-dsi,wxwxwwxxx/ghc,gcampax/ghc,fmthoma/ghc,wxwxwwxxx/ghc,nushio3/ghc,tjakway/ghcjvm,forked-upstream-packages-for-ghcjs/ghc,jstolarek/ghc,frantisekfarka/ghc-dsi,shlevy/ghc,snoyberg/ghc,green-haskell/ghc,vTurbine/ghc,vikraman/ghc,snoyberg/ghc,vTurbine/ghc,lukexi/ghc,spacekitteh/smcghc,snoyberg/ghc,nathyong/microghc-ghc,oldmanmike/ghc,fmthoma/ghc,vTurbine/ghc,tibbe/ghc,jstolarek/ghc,anton-dessiatov/ghc,AlexanderPankiv/ghc,gridaphobe/ghc,acowley/ghc,bitemyapp/ghc,AlexanderPankiv/ghc,lukexi/ghc,gcampax/ghc,nathyong/microghc-ghc,urbanslug/ghc,elieux/ghc,ezyang/ghc,nkaretnikov/ghc,vTurbine/ghc,ghc-android/ghc,acowley/ghc,da-x/ghc,lukexi/ghc,frantisekfarka/ghc-dsi,christiaanb/ghc,gcampax/ghc,nkaretnikov/ghc,urbanslug/ghc,sdiehl/ghc,urbanslug/ghc,forked-upstream-packages-for-ghcjs/ghc,wxwxwwxxx/ghc,sdiehl/ghc,mettekou/ghc,AlexanderPankiv/ghc,tibbe/ghc,GaloisInc/halvm-ghc,sgillespie/ghc,green-haskell/ghc,acowley/ghc,mettekou/ghc,sdiehl/ghc,mettekou/ghc,sdiehl/ghc,gcampax/ghc,jstolarek/ghc,olsner/ghc,wxwxwwxxx/ghc,oldmanmike/ghc,GaloisInc/halvm-ghc,ekmett/ghc,ezyang/ghc,urbanslug/ghc,acowley/ghc,da-x/ghc,hferreiro/replay,AlexanderPankiv/ghc,fmthoma/ghc,spacekitteh/smcghc,gridaphobe/ghc,anton-dessiatov/ghc,GaloisInc/halvm-ghc,nomeata/ghc,shlevy/ghc,nomeata/ghc,mcmaniac/ghc,da-x/ghc,holzensp/ghc,shlevy/ghc,ml9951/ghc,TomMD/ghc,tjakway/ghcjvm,anton-dessiatov/ghc,sgillespie/ghc,forked-upstream-packages-for-ghcjs/ghc,acowley/ghc,mfine/ghc,AlexanderPankiv/ghc,vikraman/ghc,mfine/ghc,wxwxwwxxx/ghc,tjakway/ghcjvm,elieux/ghc,gridaphobe/ghc,lukexi/ghc-7.8-arm64,christiaanb/ghc,lukexi/ghc-7.8-arm64,forked-upstream-packages-for-ghcjs/ghc,tjakway/ghcjvm,bitemyapp/ghc,forked-upstream-packages-for-ghcjs/ghc,christiaanb/ghc,gridaphobe/ghc,olsner/ghc,shlevy/ghc,tjakway/ghcjvm,ekmett/ghc,gcampax/ghc,nathyong/microghc-ghc,mcschroeder/ghc,hferreiro/replay,christiaanb/ghc,olsner/ghc,ghc-android/ghc,lukexi/ghc-7.8-arm64,nkaretnikov/ghc,olsner/ghc,mfine/ghc,christiaanb/ghc,tjakway/ghcjvm,tibbe/ghc,mfine/ghc,vikraman/ghc,holzensp/ghc,ghc-android/ghc,ilyasergey/GHC-XAppFix,elieux/ghc,ilyasergey/GHC-XAppFix,oldmanmike/ghc,GaloisInc/halvm-ghc,fmthoma/ghc,wxwxwwxxx/ghc,anton-dessiatov/ghc,snoyberg/ghc,mcmaniac/ghc,spacekitteh/smcghc,GaloisInc/halvm-ghc,forked-upstream-packages-for-ghcjs/ghc,vikraman/ghc,lukexi/ghc-7.8-arm64,olsner/ghc,spacekitteh/smcghc,nkaretnikov/ghc,oldmanmike/ghc,hferreiro/replay,ryantm/ghc,ryantm/ghc,vTurbine/ghc,holzensp/ghc,mettekou/ghc,GaloisInc/halvm-ghc,mcschroeder/ghc,fmthoma/ghc,mcmaniac/ghc,hferreiro/replay,mcschroeder/ghc,ghc-android/ghc,gridaphobe/ghc,wxwxwwxxx/ghc,ml9951/ghc,tibbe/ghc,nkaretnikov/ghc,oldmanmike/ghc,forked-upstream-packages-for-ghcjs/ghc,ezyang/ghc,ilyasergey/GHC-XAppFix,oldmanmike/ghc,urbanslug/ghc,nathyong/microghc-ghc,mettekou/ghc,elieux/ghc,snoyberg/ghc,elieux/ghc,siddhanathan/ghc,TomMD/ghc,nomeata/ghc,green-haskell/ghc,frantisekfarka/ghc-dsi,mettekou/ghc,ilyasergey/GHC-XAppFix,nushio3/ghc,anton-dessiatov/ghc,spacekitteh/smcghc,mettekou/ghc,vikraman/ghc,christiaanb/ghc,snoyberg/ghc,nathyong/microghc-ghc,shlevy/ghc,ml9951/ghc,ryantm/ghc,mfine/ghc,mcmaniac/ghc,nushio3/ghc,siddhanathan/ghc,nushio3/ghc,bitemyapp/ghc,mcschroeder/ghc,acowley/ghc,vikraman/ghc,ezyang/ghc,christiaanb/ghc,sgillespie/ghc,ekmett/ghc,ml9951/ghc,urbanslug/ghc,tibbe/ghc,green-haskell/ghc,elieux/ghc,holzensp/ghc,acowley/ghc,GaloisInc/halvm-ghc,TomMD/ghc,da-x/ghc,mcschroeder/ghc,ml9951/ghc,gcampax/ghc,ezyang/ghc,mcmaniac/ghc,siddhanathan/ghc,nushio3/ghc,nathyong/microghc-ghc,mcschroeder/ghc,TomMD/ghc,sgillespie/ghc,ekmett/ghc,TomMD/ghc,nushio3/ghc,da-x/ghc,jstolarek/ghc,oldmanmike/ghc,gridaphobe/ghc,shlevy/ghc,ghc-android/ghc,ezyang/ghc,shlevy/ghc,ml9951/ghc,sgillespie/ghc,vikraman/ghc,siddhanathan/ghc