patrick@ubuntuserver:~/x264$ ./configure --enable-static
rm: cannot remove `x264_config.h': Permission denied
rm: cannot remove `config.h': Permission denied
rm: cannot remove `config.mak': Permission denied
rm: cannot remove `config.log': Permission denied
rm: cannot remove `x264.pc': Permission denied
./configure: line 73: config.log: Permission denied
Out of tree builds are impossible with config.h/x264_config.h in source dir.
patrick@ubuntuserver:~/x264$