On Mon, 14 Oct 2024, Martin Storsjö wrote:

On Sun, 13 Oct 2024, Michael Niedermayer wrote:

On Wed, Sep 25, 2024 at 03:16:40PM +0300, Martin Storsjö wrote:
Since Xcode 15, macOS developer tools use a new linker. The new
linker by default warns for duplicate -l options. As this is a
known and expected thing, not to be considered an issue, ask for
the warning to be silenced.

This silences linker warnings like this:

ld: warning: ignoring duplicate libraries: '-lc++', '-lcrypto', '-lm', '-logg', '-lpthread', '-lssl', '-lvorbis', '-lvpx', '-lz'

The linker can also warn about duplicate -rpath options, and there's
currently no option to silence those warnings.
---
 configure | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure b/configure
index d77a55b653..a450b3c8d8 100755
--- a/configure
+++ b/configure
@@ -6480,6 +6480,7 @@ check_cc intrinsics_sse2 emmintrin.h "__m128i test = _mm_setzero_si128()"

 check_ldflags -Wl,--as-needed
 check_ldflags -Wl,-z,noexecstack
+check_ldflags -Wl,-no_warn_duplicate_libraries

 if ! disabled network; then
     check_func getaddrinfo $network_extralibs

this causes problems with build and
also there is a:
-rwxr-x--- 1 michael michael 317432 Oct 13 21:39 _warn_duplicate_libraries*

also if i replace this by -Wl,-no_warn_catgirl i get

-rwxr-x---   1 michael michael 178629347 Oct 13 21:45 _warn_catgirl

with no warning

That's odd...

What version of ld is this using (is it a distro provided mingw toolchain - what distro/version in that case)?

I can reproduce this, that the option does get accepted with binutils 2.25, but not with binutils 2.38.

Turns out that ld.bfd, both for mingw but also for linux, had this bug, up until version 2.36 where it was fixed. See the patch I just posted, to avoid even trying to use this option unless we're compiling for a darwin target.

// Martin
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel

To unsubscribe, visit link above, or email
ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".

Reply via email to