turn on SMP and ghci for aarch64

patch by Erik de Castro Lopo from
https://ghc.haskell.org/trac/ghc/ticket/9673

ghc-config.mk.in-Enable-SMP-and-GHCi-support-for-Aarch64.patch

@@ -0,0 +1,34 @@
+From 44cee4852282f63393d532aad59c5cd865ff3ed6 Mon Sep 17 00:00:00 2001
+From: Erik de Castro Lopo <erikd@mega-nerd.com>
+Date: Wed, 1 Apr 2015 04:46:01 +0000
+Subject: [PATCH] mk/config.mk.in : Enable SMP and GHCi support for Aarch64.
+
+---
+ mk/config.mk.in | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/mk/config.mk.in b/mk/config.mk.in
+index f4cb52b..d6831c9 100644
+--- a/mk/config.mk.in
++++ b/mk/config.mk.in
+@@ -172,7 +172,7 @@ HaveLibDL = @HaveLibDL@
+ 
+ # ArchSupportsSMP should be set iff there is support for that arch in
+ # includes/stg/SMP.h
+-ArchSupportsSMP=$(strip $(patsubst $(TargetArch_CPP), YES, $(findstring $(TargetArch_CPP), i386 x86_64 sparc powerpc arm)))
++ArchSupportsSMP=$(strip $(patsubst $(TargetArch_CPP), YES, $(findstring $(TargetArch_CPP), i386 x86_64 sparc powerpc arm aarch64)))
+ 
+ GhcWithSMP := $(strip $(if $(filter YESNO, $(ArchSupportsSMP)$(GhcUnregisterised)),YES,NO))
+ 
+@@ -180,7 +180,7 @@ GhcWithSMP := $(strip $(if $(filter YESNO, $(ArchSupportsSMP)$(GhcUnregisterised
+ # has support for this OS/ARCH combination.
+ 
+ OsSupportsGHCi=$(strip $(patsubst $(TargetOS_CPP), YES, $(findstring $(TargetOS_CPP), mingw32 cygwin32 linux solaris2 freebsd dragonfly netbsd openbsd darwin kfreebsdgnu)))
+-ArchSupportsGHCi=$(strip $(patsubst $(TargetArch_CPP), YES, $(findstring $(TargetArch_CPP), i386 x86_64 powerpc sparc sparc64 arm)))
++ArchSupportsGHCi=$(strip $(patsubst $(TargetArch_CPP), YES, $(findstring $(TargetArch_CPP), i386 x86_64 powerpc sparc sparc64 arm aarch64)))
+ 
+ ifeq "$(OsSupportsGHCi)$(ArchSupportsGHCi)" "YESYES"
+ GhcWithInterpreter=YES
+-- 
+2.1.4
+

ghc.spec

@@ -35,7 +35,7 @@ Version: 7.8.4
 #   (sometimes after a major release)
 # - minor release numbers for a branch should be incremented monotonically
 # xhtml moved from haskell-platform to ghc-7.8.3
-Release: 43%{?dist}
+Release: 44%{?dist}
 Summary: Glasgow Haskell Compiler
 
 License: %BSDHaskellReport
@@ -58,6 +58,7 @@ Patch22: ghc-armv7-VFPv3D16--NEON.patch
 Patch23: ghc-7.8.3-Cabal-install-PATH-warning.patch
 Patch24: ghc-7.8-arm7-use-ld-gold-8976.patch
 Patch25: ghc-7.8-arm7_saner-linker-opt-handling-9873.patch
+Patch26: ghc-config.mk.in-Enable-SMP-and-GHCi-support-for-Aarch64.patch
 
 %global Cabal_ver 1.18.1.5
 %global array_ver 0.5.0.0
@@ -272,6 +273,7 @@ rm -r libffi-tarballs
 
 %ifarch aarch64
 %patch21 -p1 -b .orig
+%patch26 -p1 -b .orig
 %endif
 
 %ifarch armv7hl
@@ -315,11 +317,6 @@ HADDOCK_DOCS = NO
 %if %{defined without_manual}
 BUILD_DOCBOOK_HTML = NO
 %endif
-%ifarch aarch64
-# aarch64 dynlinking causing runtime IO problems
-# https://ghc.haskell.org/trac/ghc/ticket/9673
-DYNAMIC_GHC_PROGRAMS=NO
-%endif
 ## for verbose build output
 #GhcStage1HcOpts=-v4
 ## enable RTS debugging:
@@ -578,6 +575,9 @@ fi
 
 
 %changelog
+* Fri Apr 10 2015 Jens Petersen <petersen@redhat.com> - 7.8.4-44
+- turn on SMP and ghci for aarch64 (Erik de Castro Lopo, #1210323)
+
 * Mon Mar 30 2015 Jens Petersen <petersen@redhat.com> - 7.8.4-43
 - aarch64 production build