Dear Richard Retanubun, In message <[email protected]> you wrote: > > > echo __GNUC__ __GNUC_MINOR__ | $(CC) -E -xc - \ > > | tail -n 1 | sed -e 's/ /0/' > > > > would be any better than parsing the output of "$(CC) --version"? > > > > The fact that it takes 4 processes instead of one (or say two if we > > add the filtering) is not a recommendation. > > sorry if I'm (re)stating the obvious, but just to be clear: > > ifneq ($(findstring 4.1,$(shell $(CC) --version)),4.1) > > while simple, will cause gcc-4.0.x or gcc-3.x.x to try to use the -mcpu option > which is not supported yet until gcc-4.2.+ (if I am not mistaken).
Well, when I say "parsing the output" I had a little more intelligent testing in ming than a fixed string compare and decision between 4.1 or anything else. > I am sure there are many better ways of extracting the version string, my > attempt is to > highlight one way that converts the version to a number and use the '-gt' to > compare on it. You get the number for free from "gcc -v". Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: [email protected] "You can have my Unix system when you pry it from my cold, dead fingers." - Cal Keegan _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
