Static build is failing on Windows platform

Describe your issue

The build is failing if the user configures the build in static mode/gstreamer-full

• gstinitstaticplugins.c is not properly generated. Fixed by !3526 (merged)
• validate.c defines a second Dllmain (see gst.c). Needs to condition the declaration of it !3540
• vpx is failing to link in gstreamer-full library (Fixed if GStreamer is not installed on the system)
• lame is failing to link in gstreamer-full library (Fixed if GStreamer is not installed on the system)
• vulkan defined sub_class_proc as gstgl !4246 (merged)
• dshow and mediafoundation can not be built together. MEDIASUBTYPE_I420 already defined in one. !4246 (merged)
• The tools (gst-discoverer etc.) link with both gstreamer-full and gstreamer static libraries (*.a) (Fixed with !3540 !5098)
• libpsl tools/tests/examples do not build properly in static mode
• In gst-full-target-type=shared the symbols must be exported properly on Windows ( see !2104)

Expected Behavior

The build to generate a gstreamer-full library with all dependencies and the tools to link against it properly

Observed Behavior

The build is failing at link stage

Setup

• Operating System: Windows
• Device: Computer
• GStreamer Version: 1.21
• Command line: meson builddir-static --default-library=static

Steps to reproduce the bug

1. open terminal
2. type $ meson builddir-static --default-library=static

How reproducible is the bug?

Always

Screenshots if relevant

Solutions you have tried

$ meson builddir-static --default-library=static -Ddevtools=disabled -Dgst-plugins-good:lame=disabled -Dgst-plugins-bad:mediafoundation=disabled -Dgst-plugins-bad:vulkan=disabled -Dgst-plugins-good:vpx=disabled

Related non-duplicate issues

Additional Information

The build must be performed without any gstreamer installation available on the system.