Thank you for your response. I'll look into gcc/gcc.c, as you recommend - but does this break cpp? For example, the -nostdinc and -U options? http://www.creative-telcom-solutions.de ----- Original Message ----- From: Chung-Ju Wu <jasonwucj@xxxxxxxxx> To: Charles Smith <cts.private@xxxxxxxxx> Cc: "gcc-help@xxxxxxxxxxx" <gcc-help@xxxxxxxxxxx> Sent: Monday, May 13, 2013 8:33 AM Subject: Re: COLLECT_GCC_OPTIONS help 2013/5/11 Charles Smith <cts.private@xxxxxxxxx>: > > > Does anyone know who creates COLLECT_GCC_OPTIONS and how I can influence it? > > I'm using cpp to expand some c code for data-mining, and it magically finds some header files I don't want it to. When I run cpp with the -v > option it's clear why - that variable has the information in it. > > But it's not in my environment, and that symbol, COLLECT_GCC_OPTIONS, is > not in the /usr/bin/cpp executable. I do find it in the binary files in /usr/lib/gcc, but the gcc.gnu.org online manual's keyword index doesn't mention COLLECT_GCC_OPTIONS and I don't find a way to search it. > There's no information to be found in google about who creates > COLLECT_GCC_OPTIONS or why. > > So any clue will be greatly appreciated. > COLLECT_GCC_OPTIONS is created by gcc driver itself, and then destroyed when its jobs have been done. You can refer to gcc/gcc.c, set_collect_gcc_options() implementation. Best regards, jasonwucj
