Fix 9.6.3 aarch64 outline atomics

Author: angerman

overlays/bootstrap.nix

@@ -280,6 +280,7 @@ in {
                 ++ final.lib.optional (versionAtLeast "9.4"    && versionLessThan "9.4.8" && final.stdenv.targetPlatform.isWindows) ./patches/ghc/ghc-9.6-fix-code-symbol-jumps.patch
                 ++ final.lib.optional (versionAtLeast "9.6"    && versionLessThan "9.6.4" && final.stdenv.targetPlatform.isWindows) ./patches/ghc/ghc-9.6-fix-code-symbol-jumps.patch
                 ++ final.lib.optional (versionAtLeast "9.8"    && versionLessThan "9.9.20231203" && final.stdenv.targetPlatform.isWindows) ./patches/ghc/ghc-9.6-fix-code-symbol-jumps.patch
+                ++ final.lib.optional (versionAtLeast "9.6.3"  && versionLessThan "9.10" && final.stdenv.targetPlatform.isAarch64) ./patches/ghc/ghc-9.6.3-fix-outline-atomics-signature.patch
                 # this one is to allow linking extra symbols from iserv.
                 # ++ fromUntil "9.6.1" "9.10"                                                                                       ./patches/ghc/iserv-syms.patch
                 # Fix the bad fixups: https://gitlab.haskell.org/ghc/ghc/-/commit/2adc050857a9c1b992040fbfd55fbe65b2851b19