On Wed, 8 May 2013 15:49:12 -0600, Warner Losh writes: >> MAKEOBJDIR=3D'${.CURDIR:S,${SRCTOP},${OBJTOP},}' >>=20 >> which gives you a similar - but much neater result than >> MAKEOBJDIRPREFIX. > >Isn't that backwards. MAKEOBJDIRPREFIX in today's FreeBSD is much more = >like OBJTOP than what you've quoted here. That's how I set the top of =
No. MAKEOBJDIRPREFIX gives you an objdir by simply doing ${MAKEOBJDIRPREFIX}${.CURDIR} this is very quick and handy, but the paths can be very long and ugly if you happen to be on automounted nfs. For the sake of discussion assume I am in /.amd/server/b/sjg/work/FreeBSD/current/src/bin/cat MAKEOBJDIRPREFIX=/var/obj/current/$MACHINE make -V .OBJDIR /var/obj/current/amd64/.amd/server/b/sjg/work/FreeBSD/current/src/bin/cat MAKEOBJDIR='${.CURDIR:S,${SRCTOP},${OBJTOP},}' make -V .OBJDIR /var/obj/current/amd64/bin/cat (assuming of course that OBJTOP='${OBJROOT}${MACHINE}' as previously mentioned). The ability to do the above is something I added to NetBSD's make ages ago because we found that MAKEOBJDIRPREFIX resulted in pathnames that were blowing the command line limits on FreeBSD 2.x >the tree today, usually with a 'setenv MAKEOBJDIRPREFIX $HOME/obj' in my = >.cshrc so it is always active. That way I can just buildworld or = Yes, MAKEOBJDIRPREFIX is certainly very handy - and I use it for quick & dirty builds and of course for buildworld and such. >problems with /usr/obj being unwritable... I know this trick doesn't = >work for netbsd's make (or didn't years ago when I was building it on a = What trick? MAKEOBJDIRPREFIX has always worked as you describe. Don't confuse limitations imposed by makefiles as being limitations of the tool ;-) >The project currently uses dots without issue. Not quite sure why you'd = The project doesn't currently do anything close to what dirdeps.mk allows. _______________________________________________ freebsd-toolchain@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"