[Spice-devel] [PATCH spice 03/18] build-sys: build a noinst libtest.la to link to

[Marc-André Lureau]

Hi

On Wed, Dec 16, 2015 at 10:44 AM, Frediano Ziglio <fziglio at redhat.com> wrote:
> You are not... convenient library should not be linked to programs!
> Is in libtool documentation.

https://www.gnu.org/software/libtool/manual/html_node/Static-libraries.html
"The key is remembering that a convenience library contains PIC
objects, and can be linked where a list of PIC objects makes sense;
i.e. into a shared library. A static convenience library contains
non-PIC objects, so can be linked into an old static library, or a
program. "

Having -static or not doesn't change the result. All objects are
compiled with -fPIC. And ar of PIC objects + ld/elf is fine linking a
program or a library that way. Searching a bit over the web, it seems
to be a common practice for quite a while. Do we care so much about
other non-elf compilers/linkers that could in theory have issues? Even
win32 dll are fine with this (I created a small project to test this
attached). Do you know an arch/compiler that wouldn't support this?

What are the alternatives? To compile the library twice and pass all
the needed library flags when linking? I don't think we need to do all
that for something hypotetical we can't  test.


-- 
Marc-André Lureau
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