Undesirable bmake behavior

[Alexander Kabaev]

On Sat, 1 Jun 2013 21:40:57 -0700
"Simon J. Gerraty" <sjg at juniper.net> wrote:

> >today I got confronted with this little curiosity from bmake. I have
> >built and installed the world, and after reboot I ran 'make
> >delete-old' as root to get rid of accumulated stale files. This is
> >what I got back:
> >
> >>>> Removing old files (only deletes safe to delete libs)
> >....
> >>>> Old files removed
> >>>> Removing old directories
> >>>> Old directories removed
> >To remove old libraries run '/usr/obj/usr/src/make.amd64/make
> >delete-old-libs'.
> >
> >It turns out that somehow running make in src tree finds and tries to
> >run a copy from .OBJDIR, if one is present, unconditionally now. I do
> 
> This simply what src/Makefile says to do, and AFAIK it has been that
> way for ages.
> 
> Since delete-old is in TGTS it gets run via:
> 
> #
> # Handle the user-driven targets, using the source relative mk files.
> #
> 
> ${TGTS}:
>         ${_+_}@cd ${.CURDIR}; ${_MAKE} ${.TARGET}
> 
> 
> and
> 
> $ make -dV -V _MAKE
> PATH=${PATH} ${BINMAKE} -f Makefile.inc1 TARGET=${_TARGET}
> TARGET_ARCH=${_TARGET_ARCH} $ make -dV -V BINMAKE
> `if [ -x ${MAKEPATH}/make ]; then echo ${MAKEPATH}/make; else echo
> ${MAKE}; fi`  -m ${.CURDIR}/share/mk
> $ make -V _MAKE
> PATH=/sbin:/bin:/usr/sbin:/usr/bin `if [ -x
> /var/obj/current/b/sjg/work/FreeBSD/current/src/make.amd64/make ];
> then
> echo /var/obj/current/b/sjg/work/FreeBSD/current/src/make.amd64/make;
> else echo make; fi`  -m /b/sjg/work/FreeBSD/current/src/share/mk -f
> Makefile.inc1 TARGET=amd64 TARGET_ARCH=amd64 $
> 
> Now you may be right that that's a bad idea, but it isn't anything
> new.
> 
> --sjg

Indeed, it seems this is an issue that rears it head every time we
resort to building the bootstrap make, which happens not often. bmake
just made me notice the issue, and it wasn't the cause.
-- 
Alexander Kabaev
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