Hi, I was building ffmpeg through windows. While I was able to successfully able to build for smaller number of threads, for larger number of threads I faced an issue The commands I used were bash ./configure --arch=x86 --target-os=mingw32 --disable-x86asm make -j While building with 4 Threads the build was successful Screenshot: [image: image.png] While building with 64 threads, I faced the following error, Screenshot : [image: image.png] semaphore or child process wait (Error 87 : The parameter is incorrect) Please could you check this issue. Thanks Regards, S Srihari