https://bugs.gentoo.org/945304
https://gitlab.kitware.com/cmake/cmake/-/commit/c1c4cf9545d17928c065fca344c48e03b80291f0
Add linker configuration file for CMake 3.31.0+.
--- /dev/null
+++ b/x265/source/cmake/CMakeASM_YASMLinkerInformation.cmake
@@ -0,0 +1,3 @@
+set(ASM_DIALECT "_YASM")
+include(Internal/CMakeASMLinkerInformation)
+set(ASM_DIALECT)