Hi, Is there a way to skip the preprocessing of system headers and extern library headers when compiling with gcc ? I have a very specific use of gcc, where I batch thousand of C or C++ files, only dumping the AST generated. I do not link my .o files, and I do not want to install the numerous libraries called by all the source files... What I'd like to do is preprocessing custom header files (which I have), but none of the other header files... Is it possible ? Thanks a lot, -- View this message in context: http://old.nabble.com/How-not-to-preprocess-system-headers-tp32453674p32453674.html Sent from the gcc - Help mailing list archive at Nabble.com.