Signals: Always install SIGUSR2 handler
Signals: Always install SIGUSR2 handler

Even if libdw isn't available.

tjakway/ghcjvm,da-x/ghc,nushio3/ghc,GaloisInc/halvm-ghc,GaloisInc/halvm-ghc,vTurbine/ghc,siddhanathan/ghc,GaloisInc/halvm-ghc,oldmanmike/ghc,vTurbine/ghc,shlevy/ghc,mettekou/ghc,sdiehl/ghc,olsner/ghc,oldmanmike/ghc,ezyang/ghc,mcschroeder/ghc,shlevy/ghc,AlexanderPankiv/ghc,vikraman/ghc,vTurbine/ghc,da-x/ghc,vTurbine/ghc,mettekou/ghc,sdiehl/ghc,vikraman/ghc,mettekou/ghc,elieux/ghc,AlexanderPankiv/ghc,ezyang/ghc,tjakway/ghcjvm,vTurbine/ghc,sgillespie/ghc,sgillespie/ghc,siddhanathan/ghc,oldmanmike/ghc,da-x/ghc,vTurbine/ghc,da-x/ghc,elieux/ghc,mcschroeder/ghc,ezyang/ghc,vikraman/ghc,shlevy/ghc,olsner/ghc,tjakway/ghcjvm,da-x/ghc,gridaphobe/ghc,sgillespie/ghc,mcschroeder/ghc,gridaphobe/ghc,mcschroeder/ghc,nushio3/ghc,AlexanderPankiv/ghc,siddhanathan/ghc,tjakway/ghcjvm,shlevy/ghc,gridaphobe/ghc,snoyberg/ghc,sgillespie/ghc,gridaphobe/ghc,nushio3/ghc,vTurbine/ghc,mcschroeder/ghc,mettekou/ghc,GaloisInc/halvm-ghc,snoyberg/ghc,sgillespie/ghc,gridaphobe/ghc,sdiehl/ghc,snoyberg/ghc,siddhanathan/ghc,oldmanmike/ghc,snoyberg/ghc,olsner/ghc,gridaphobe/ghc,vikraman/ghc,oldmanmike/ghc,oldmanmike/ghc,AlexanderPankiv/ghc,tjakway/ghcjvm,AlexanderPankiv/ghc,snoyberg/ghc,shlevy/ghc,olsner/ghc,olsner/ghc,da-x/ghc,elieux/ghc,mcschroeder/ghc,ezyang/ghc,AlexanderPankiv/ghc,elieux/ghc,sgillespie/ghc,mettekou/ghc,olsner/ghc,siddhanathan/ghc,GaloisInc/halvm-ghc,nushio3/ghc,shlevy/ghc,sdiehl/ghc,snoyberg/ghc,siddhanathan/ghc,olsner/ghc,sdiehl/ghc,oldmanmike/ghc,ezyang/ghc,sgillespie/ghc,GaloisInc/halvm-ghc,sdiehl/ghc,nushio3/ghc,elieux/ghc,mettekou/ghc,tjakway/ghcjvm,AlexanderPankiv/ghc,vikraman/ghc,tjakway/ghcjvm,snoyberg/ghc,gridaphobe/ghc,shlevy/ghc,elieux/ghc,mcschroeder/ghc,ezyang/ghc,GaloisInc/halvm-ghc,vikraman/ghc,sdiehl/ghc,da-x/ghc,siddhanathan/ghc,mettekou/ghc,ezyang/ghc,nushio3/ghc,nushio3/ghc,vikraman/ghc,elieux/ghc