Andoni Morales Alastruey authored Jan 14, 2021 and GStreamer Marge Bot committed Jan 28, 2021

In Windows, the bootstrap used to build all the autotools and now it's
using the ones from the msys installation. During the autogen phase,
GTK+ requires the pkg-config macros that are installed in the
build-tools prefix. Since we use the msys autotools, the macros in
/share/aclocal are no longer in the default search paths. This patch
makes sure that the m4 macros installed by a build tool can be used.

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