Am 02.07.2011 17:25, schrieb Benjamin Kaduk: > On Sat, 2 Jul 2011, Robert Millan wrote: > >> The userland aicasm utility in sys/dev/aic7xxx/aicasm/Makefile is being >> built with "-nostdinc -I/usr/include" options. Unfortunately this breaks >> building aicasm on systems using the upstream version of GCC, where >> "-nostdinc" disables more search directories than are enabled by >> "-I/usr/include". > > There is a functional difference between '-nostdinc -I/usr/include -I.' > even when the standard include search path is just /usr/include -- the > standard include paths are always searched last (unless -nostdinc is > given), even if they are explicitly listed on the command line. If > there are conflicting definitions in /usr/local/foo.h and ./foo.h, this > gimmick can be necessary to pull in the correct version. (I've needed > to do this when packaging software for the freebsd ports collection, > though with /usr/local/include replacing '.'.)
Note that there are GCC-version-specific directories for the more intricate details such as stdarg.h and compiler-specific builtins -- you don't get those with -I/usr/include either. _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
