Hi, I see this. What temporary files are generated when compiling a C file to .o, .so or executable? Is there a way to show what those files are? When -pipe can be used, will it always result in a speed-up (since disk operations are removed)? -pipe Use pipes rather than temporary files for communication between the various stages of compilation. This fails to work on some systems where the assembler is unable to read from a pipe; but the GNU assembler has no trouble. -- Regards, Peng