Re: export_dynamic_flag_spec

[Sam Steingold]

Hi Gary,

thanks for your kind reply.

On 6/9/10, Gary V. Vaughan <address@hidden> wrote:
>  On 10 Jun 2010, at 01:51, Sam Steingold wrote:
>  > EXPORT_DYNAMIC_FLAG_SPEC='@EXPORT_DYNAMIC_FLAG_SPEC@'
>  >
>  > alas, instead of
>  >
>  > EXPORT_DYNAMIC_FLAG_SPEC='-Wl,--export-dynamic'
>  >
>  > foo.sh contains this:
>  >
>  > EXPORT_DYNAMIC_FLAG_SPEC='${wl}--export-dynamic'
>  >
>  > which is obviously wrong.
>
>
> No, it's quite deliberate.

what I meant "wrong for my purposes".

>  > So, how do I get the full correct value of export_dynamic_flag_spec?
>
> Choose or extract an appropriate value for $wl from libtool, something along
>  the lines of:
>
>   eval `libtool --tag=CC --config|grep '^wl='`
>
>  Generally when a libtool variable name ends with '_spec', that means it
>  relies on being evaluated with an appropriate environment before use.

It appears that this:

wl=$lt_prog_compiler_wl eval
EXPORT_DYNAMIC_FLAG_SPEC=\"$export_dynamic_flag_spec\"
AC_SUBST(EXPORT_DYNAMIC_FLAG_SPEC)dnl

does the trick for me at this time.
is it OK to use? (as in "will not randomly break in the future")

thanks again!

-- 
Sam Steingold <http://sds.podval.org>