Re: linker-script.m4?

[Ralf Wildenhues]

Hi Simon,

* Simon Josefsson wrote on Mon, Mar 02, 2009 at 11:02:44AM CET:
> --- /dev/null
> +++ b/doc/linker-script.texi
> @@ -0,0 +1,26 @@
> address@hidden Library Version Scripts
> address@hidden Library Version Scripts
> +
> +The @code{linker-script} module can be used to add shared library
> +versioning support.  You use the module by importing it to your
> +library, and then add the following lines to the @code{Makefile.am}
> +that builds the library:
> +
> address@hidden
> +if HAVE_LD_VERSION_SCRIPT
> +libfoo_la_LDFLAGS += -Wl,--version-script=$(srcdir)/libfoo.map
> +endif
> address@hidden smallexample

How about suggesting libtool's -export-symbols as a more portable but
less powerful alternative for systems that do not support GNU ld version
scripts?  Alternatively, of course support for, say, Solaris ld version
scripts would be nice too.

Cheers,
Ralf

> +The version script file format is documented in the GNU LD manual, but
> +a small example would be:
> +
> address@hidden
> +LIBFOO_1.0 @{
> +  global:
> +    libfoo_init; libfoo_doit; libfoo_done;
> +
> +  local:
> +    *;
> address@hidden;
> address@hidden smallexample