dolphin/Externals/zstd/lib/common/threading.c, branch release-prep-2407

dolphin/Externals/zstd/lib/common/threading.c, branch release-prep-2407 GameCube and Wii emulator Externals: Add zstd 2020-05-13T18:53:10+00:00 JosJuice josjuice@gmail.com 2020-05-03T17:42:12+00:00 2137fb7813df7fae1c44cba22f584986b88bb94f I had to rename Source/Common/Compiler.h because the VS build confuses it with Externals/zstd/lib/common/compiler.h otherwise.

I had to rename Source/Common/Compiler.h because the VS build
confuses it with Externals/zstd/lib/common/compiler.h otherwise.