hello, here is another question i wanna ask. it should be possible to work with the cygwin compiler under dev- c++. to do so you should put the following lines in your autoexc.bat: SET PATH=C:\cygnus\cygwin-b20\H-i586-cygwin32\bin;%PATH% SET C_INCLUDE_PATH=C:\cygnus\cygwin-b20\include SET CPP_INCLUDE_PATH=C:\cygnus\cygwin- b20\include\g++;C:\cygnus\cygwin-b20\include SET GCC_EXEC_PREFIX=C:\cygnus\cygwin-b20\H-i586- cygwin32\lib\gcc-lib SET LIBRARY_PATH=C:\cygnus\cygwin-b20\H-i586-cygwin32\i586- cygwin32\lib (according to the dev-c++ documentation) but these lines must be wrong and should belong to another (older?) version of cygwin. where are the real include and lib-files for the c/c++ compiler. there are a lot of them in the cygwin directory and i must admit that i donīt understand why they are split in so many directories. please help even if this question seems to be stupid to you. greetings andreas -- 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/