hi i had similiar problems with gcc and cygwin-1.3.20-1 switching back to cygwin-1.3.19-1 solved the problem for me.
lg mike ------------------------------------------- I have the same problem while attempting to configure in cygwin source tree, configure fails in opcodes directory. Note the first gcc execution is successful! [sos at sos opcodes]$ cat config.log This file contains any messages produced by compilers while running configure, to aid debugging if configure makes a mistake. configure:554: checking for Cygwin environment configure:570: gcc -c -O2 -pipe conftest.c 1>&5 configure:587: checking for mingw32 environment configure:599: gcc -c -O2 -pipe conftest.c 1>&5 gcc: installation problem, cannot exec `cc1': No such file or directory configure: failed program was: -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/