It seems this patch

50e78dafd0cac5ca3b28ef71559899f179343ddf

changed some sed expressions in rts/ghc.mk that seem to be no longer firing on my Mac now. Mac has a different flavor of BSD sed and such.

The resulting contents of rts/libs.depend on my build attempt is

$ cat rts/libs.depend

m dl

/Users/nfrisby/Source/ghc-build-trees/vanilla/rts/dist/build

It's missing the -l and -L prefices that the sed commands are supposed to add.

I can hack around this on my Mac, but I'll leave the fix to someone with some portable sed fu.

Thanks.