posix: avoid a cast in regex syntax bit definitions

The cast doesn't have any benefit over using a UL suffix and prevents
the macro from being used in preprocessor directives.

Reviewed-by: Arjun Shankar <arjun@redhat.com>

diff --git a/posix/regex.h b/posix/regex.h
index 192d5bf2a3f5a0a392e9986846e624cdabf97548..2d8392cf84aeb42f9bbcd672f6e607d7be02f220 100644 (file)
--- a/posix/regex.h
+++ b/posix/regex.h
@@ -74,7 +74,7 @@ typedef unsigned long int reg_syntax_t;
 #ifdef __USE_GNU
 /* If this bit is not set, then \ inside a bracket expression is literal.
    If set, then such a \ quotes the following character.  */
-# define RE_BACKSLASH_ESCAPE_IN_LISTS ((unsigned long int) 1)
+# define RE_BACKSLASH_ESCAPE_IN_LISTS 1ul
 
 /* If this bit is not set, then + and ? are operators, and \+ and \? are
      literals.