Revert "turn off executable stack flag in executables (#973512)"

While it seems to fix the flag for intermediate object files
final executables still seems to have the flag set somehow.
Further the patch apparently changed the ABI of the ghc library.

ghc.spec

@@ -29,7 +29,7 @@ Version: 7.6.3
 # - release can only be reset if *all* library versions get bumped simultaneously
 #   (sometimes after a major release)
 # - minor release numbers for a branch should be incremented monotonically
-Release: 15%{?dist}
+Release: 16%{?dist}
 Summary: Glasgow Haskell Compiler
 
 License: %BSDHaskellReport
@@ -52,8 +52,6 @@ Patch10: ghc-wrapper-libffi-include.patch
 Patch12: ghc-7.4.2-Cabal-disable-ghci-libs.patch
 # fix compilation with llvm-3.3
 Patch13: ghc-llvmCodeGen-empty-array.patch
-# disable executable stack
-Patch14: ghc-NCG-no-execstack.patch
 
 # fedora ghc has been bootstrapped on
 # %{ix86} x86_64 ppc alpha sparcv9 ppc64 armv7hl armv5tel s390 s390x
@@ -226,8 +224,8 @@ ln -s $(pkg-config --variable=includedir libffi)/*.h rts/dist/build
 %endif
 
 %patch12 -p1 -b .orig
+
 %patch13 -p1 -b .orig
-%patch14 -p1 -b .orig
 
 
 %build
@@ -441,6 +439,10 @@ fi
 
 
 %changelog
+* Thu Jul 11 2013 Jens Petersen <petersen@redhat.com> - 7.6.3-16
+- revert the executable stack patch since it didn't fully fix the problem
+  and yet changed the ghc library hash
+
 * Wed Jul 10 2013 Jens Petersen <petersen@redhat.com> - 7.6.3-15
 - turn off executable stack flag in executables (#973512)
   (thanks Edward Zhang for upstream patch and Dhiru Kholia for report)