diff -ur dav1d.orig/x86_64-w64-mingw32.meson dav1då/x86_64-w64-mingw32.meson
--- dav1d.orig/x86_64-w64-mingw32.meson	2020-05-07 20:41:33.000000000 -0400
+++ dav1d/x86_64-w64-mingw32.meson	2020-05-07 20:44:38.000000000 -0400
@@ -7,6 +7,7 @@
 
 [properties]
 c_link_args = ['-static-libgcc']
+has_function_posix_memalign = false
 
 [host_machine]
 system = 'windows'