[commit: ghc] : Bump to 8.6.4 (aac18e9)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : 
Link       : http://ghc.haskell.org/trac/ghc/changeset/aac18e9a08e6de9648e1a62d849dcd409f407df8/ghc

>---------------------------------------------------------------

commit aac18e9a08e6de9648e1a62d849dcd409f407df8
Author: Ben Gamari <ben at smart-cactus.org>
Date:   Mon Mar 4 15:48:49 2019 -0500

    Bump to 8.6.4


>---------------------------------------------------------------

aac18e9a08e6de9648e1a62d849dcd409f407df8
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 8469247..11c2a34 100644
--- a/configure.ac
+++ b/configure.ac
@@ -13,7 +13,7 @@ dnl
 # see what flags are available. (Better yet, read the documentation!)
 #
 
-AC_INIT([The Glorious Glasgow Haskell Compilation System], [8.6.3], [glasgow-haskell-bugs at haskell.org], [ghc-AC_PACKAGE_VERSION])
+AC_INIT([The Glorious Glasgow Haskell Compilation System], [8.6.4], [glasgow-haskell-bugs at haskell.org], [ghc-AC_PACKAGE_VERSION])
 
 # Set this to YES for a released version, otherwise NO
 : ${RELEASE=YES}