Re: [GHC] #11085: Relying on the existence of CallStack in 7.10 breaks bootstrappability with 7.10.1

#11085: Relying on the existence of CallStack in 7.10 breaks bootstrappability with 7.10.1 -------------------------------------+------------------------------------- Reporter: quchen | Owner: Type: bug | Status: patch Priority: normal | Milestone: 8.0.1 Component: Compiler | Version: 7.10.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Building GHC | Unknown/Multiple failed | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D1472 Wiki Page: | -------------------------------------+------------------------------------- Comment (by Ben Gamari ): In [changeset:"54884220cd8f68bcb4291cc3689d69258b835f6f/ghc" 54884220/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="54884220cd8f68bcb4291cc3689d69258b835f6f" Fix bootstrapping with GHC 7.10.1 Relying on CallStack being in GLASGOW_HASKELL >= 710 breaks bootstrappability with 7.10.1 7.10.2 added the CallStack mechanism, and GHC already relies on this while being built. Unfortunately, it is enabled with "GLASGOW_HASKELL

= 710", which also applies to GHC 7.10.1, which does not have CallStack, and fails building the stage-1 compiler because the symbol is not found.

This patch makes the CPP directive more strict, requiring **more than** 7.10 instead of **at least**. Reviewers: jstolarek, austin, bgamari Reviewed By: bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1472 GHC Trac Issues: #11085 }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11085#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler