backport from http://svn.apache.org/viewvc?view=revision&revision=1533345

https://issues.apache.org/jira/browse/DAEMON-308

---
 src/native/unix/configure            |    4 ++++
 src/native/unix/support/apsupport.m4 |    4 ++++
 2 files changed, 8 insertions(+)

--- commons-daemon-1.0.15-src.orig/src/native/unix/configure
+++ commons-daemon-1.0.15-src/src/native/unix/configure
@@ -2695,10 +2695,14 @@ echo "$as_me: error: Unsupported operati
   arm*)
     CFLAGS="$CFLAGS -DCPU=\\\"arm\\\""
     supported_os="arm"
     HOST_CPU=arm
     ;;
+  aarch64*)
+    CFLAGS="$CFLAGS -DCPU=\\\"aarch64\\\""
+    supported_os="aarch64"
+    HOST_CPU=aarch64;;
   *)
     echo "$as_me:$LINENO: result: failed" >&5
 echo "${ECHO_T}failed" >&6
     { { echo "$as_me:$LINENO: error: Unsupported CPU architecture \"$host_cpu\"" >&5
 echo "$as_me: error: Unsupported CPU architecture \"$host_cpu\"" >&2;}
--- commons-daemon-1.0.15-src.orig/src/native/unix/support/apsupport.m4
+++ commons-daemon-1.0.15-src/src/native/unix/support/apsupport.m4
@@ -164,10 +164,14 @@ AC_DEFUN(AP_SUPPORTED_HOST,[
   arm*)
     CFLAGS="$CFLAGS -DCPU=\\\"arm\\\""
     supported_os="arm"
     HOST_CPU=arm
     ;;
+  aarch64*)
+    CFLAGS="$CFLAGS -DCPU=\\\"aarch64\\\""
+    supported_os="aarch64"
+    HOST_CPU=aarch64;;
   *)
     AC_MSG_RESULT([failed])
     AC_MSG_ERROR([Unsupported CPU architecture "$host_cpu"]);;
   esac