Re: [Libunwind-devel] [PATCH 10/11] configure: introduce AX_ARG_ENABLE.

[Mike Frysinger]

On Mon, Sep 10, 2012 at 8:21 PM, Cody P Schafer wrote:
> +# AX_ARG_ENABLE(argument, help-text, if-not-present)

dnl rather than #

> +AC_DEFUN([AX_ARG_ENABLE],

AX_* is sort of a reserved namespace as the large autoconf-archive
project utilizes it everywhere.  maybe pick a different prefix ?

> +        [AC_ARG_ENABLE([$1], [$2],[enable_$1=$enablearg],[$3])])

this 3rd arg is redundant.  that's pretty much what autoconf already
does.  i would just omit it.

$ cat configure.ac; autoconf
AC_INIT(foo)
AC_ARG_ENABLE(foo, boo, , enable_foo=foo)
echo $enable_foo
AC_OUTPUT
$ ./configure
foo
$ ./configure --enable-foo
yes
$ ./configure --disable-foo
no
-mike