diff options
| -rw-r--r-- | m4/symbol.m4 | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/m4/symbol.m4 b/m4/symbol.m4 index fc8c8eede..1ff98e906 100644 --- a/m4/symbol.m4 +++ b/m4/symbol.m4 @@ -62,8 +62,27 @@ AC_DEFUN([AC_CHECK_SYMBOLS], [ done ]) +m4_ifdef([m4_foreach_w], [], [ + # m4_foreach_w(VARIABLE, LIST, EXPRESSION) + # ---------------------------------------- + # + # Like m4_foreach, but the list is whitespace separated. + # + # This macro is robust to active symbols: + # m4_foreach_w([Var], [ active + # b act\ + # ive ], [-Var-])end + # => -active--b--active-end + # + m4_define([m4_foreach_w], + [m4_foreach([$1], m4_split(m4_normalize([$2])), [$3])]) + m4_define([m4_foreach_w_is_compatibility]) +]) + m4_define([AH_CHECK_SYMBOLS], [ m4_foreach_w([AC_Symbol], [$1], [AH_TEMPLATE(AS_TR_CPP([HAVE_]m4_defn([AC_Symbol])), [Define to 1 if you have the ]m4_defn([AC_Symbol])[ symbol.])]) -])
\ No newline at end of file +]) + +m4_ifdef([m4_foreach_w_is_compatibility], [m4_undefine([m4_foreach_w])]) |