8279834: Alpine Linux fails to build when --with-source-date enabled

Reviewed-by: erikj

Author: Andrew Leonard

make/autoconf/basic_tools.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2022, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -356,9 +356,9 @@ AC_DEFUN_ONCE([BASIC_SETUP_COMPLEX_TOOLS],
   fi
   AC_SUBST(IS_GNU_TIME)
 
-  # Check if it's GNU date
-  AC_MSG_CHECKING([if date is the GNU version])
-  check_date=`$DATE --version 2>&1 | $GREP GNU`
+  # Check if it's a GNU date compatible version
+  AC_MSG_CHECKING([if date is a GNU compatible version])
+  check_date=`$DATE --version 2>&1 | $GREP "GNU\|BusyBox"`
   if test "x$check_date" != x; then
     AC_MSG_RESULT([yes])
     IS_GNU_DATE=yes