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Update ax_append_flag.m4 to the latest version

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This commit is contained in:
John Zaitseff 2015-08-18 07:56:30 +10:00
parent 25d233c7fb
commit 79ac3636ae
1 changed files with 16 additions and 14 deletions
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30
m4/ax_append_flag.m4
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@ -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 6
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