pkg-config files of ffmpeg package contain `-ldl`

[madebr]

Description / Steps to reproduce the issue

The pkg-config files of ffmpeg have -ldl in their Libs.Private section, resulting in a link error

• Go to https://packages.msys2.org/packages/mingw-w64-x86_64-ffmpeg
• Download binary tarball
• View mingw-w64-x86_64-ffmpeg-8.0-3-any.pkg.tar\mingw64\lib\pkgconfig\libavcodec.pc
• See presence of -ldl in Libs.private

(-ldl is also present in other ffmpeg pkg-config files)

Expected behavior

libdl is only present on unix, so -ldl should not be present

Actual behavior

 D:/a/_temp/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/15.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -ldl: No such file or directory

error on ci

Verification

• [x] I have verified that my MSYS2 is up-to-date before submitting the report (see https://www.msys2.org/docs/updating/)

Windows Version

MINGW64_NT-10.0-26100 runnervm747y6 3.6.4-23a25d49.x86_64 2025-07-16 16:15 UTC x86_64 Msys

MINGW environments affected

• [x] MINGW64
• [ ] MINGW32
• [ ] UCRT64
• [ ] CLANG64
• [ ] CLANGARM64

Are you willing to submit a PR?

No response

[lazka]

Valid issue. Note though that there are likely more issues re static linking ffmpeg.

You can get libdl here: https://packages.msys2.org/base/mingw-w64-dlfcn