diff options
Diffstat (limited to 'm4/ax_append_flag.m4')
| -rw-r--r-- | m4/ax_append_flag.m4 | 30 |
1 files changed, 16 insertions, 14 deletions
diff --git a/m4/ax_append_flag.m4 b/m4/ax_append_flag.m4 index 1d38b76..aeab899 100644 --- a/m4/ax_append_flag.m4 +++ b/m4/ax_append_flag.m4 @@ -49,21 +49,23 @@ # modified version of the Autoconf Macro, you may extend this special # exception to the GPL to apply to your modified version as well. -#serial 2 +#serial 5 AC_DEFUN([AX_APPEND_FLAG], -[AC_PREREQ(2.59)dnl for _AC_LANG_PREFIX -AS_VAR_PUSHDEF([FLAGS], [m4_default($2,_AC_LANG_PREFIX[FLAGS])])dnl -AS_VAR_SET_IF(FLAGS, - [case " AS_VAR_GET(FLAGS) " in - *" $1 "*) - AC_RUN_LOG([: FLAGS already contains $1]) - ;; - *) - AC_RUN_LOG([: FLAGS="$FLAGS $1"]) - AS_VAR_SET(FLAGS, ["AS_VAR_GET(FLAGS) $1"]) - ;; - esac], - [AS_VAR_SET(FLAGS,["$1"])]) +[dnl +AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_SET_IF +AS_VAR_PUSHDEF([FLAGS], [m4_default($2,_AC_LANG_PREFIX[FLAGS])]) +AS_VAR_SET_IF(FLAGS,[ + AS_CASE([" AS_VAR_GET(FLAGS) "], + [*" $1 "*], [AC_RUN_LOG([: FLAGS already contains $1])], + [ + AS_VAR_APPEND(FLAGS," $1") + AC_RUN_LOG([: FLAGS="$FLAGS"]) + ]) + ], + [ + AS_VAR_SET(FLAGS,[$1]) + AC_RUN_LOG([: FLAGS="$FLAGS"]) + ]) AS_VAR_POPDEF([FLAGS])dnl ])dnl AX_APPEND_FLAG |