CPUFLAGS

[bashrules]

How do I pass cpu flags to pkgsrc, say, something like -march=corei7?

Man mk.conf suggests to use "CPUFLAGS", but it's not implemented in pkgsrc:

$ grep -R CPUFLAGS /usr/pkgsrc/mk/
$

A hack would be to add them to CFLAGS, e.g.

CFLAGS+=-march=corei7

but some packages mess around with CFLAGS and remove my -march, e.g. xv

$ grep -R corei7 /tmp/pkgsrc/graphics/xv/work/ 
Binary file /tmp/pkgsrc/graphics/xv/work/.gcc/bin/gcc matches
Binary file /tmp/pkgsrc/graphics/xv/work/.gcc/bin/cc matches
Binary file /tmp/pkgsrc/graphics/xv/work/.gcc/bin/cpp matches
Binary file /tmp/pkgsrc/graphics/xv/work/.gcc/bin/g++ matches
Binary file /tmp/pkgsrc/graphics/xv/work/.gcc/bin/c++ matches

[gsvelto]

One way to do it is to install the devel/cpuflags package from pkgsrc:

ftp://ftp.netbsd.org/pub/pkgsrc/curr...gs/README.html

Then you will have to add this line to your /etc/mk.conf file:

.sinclude "/usr/pkg/share/mk/cpuflags.mk"

This will set cpu flags for your CPU automatically, however it will not be able to do so for packages that replace CFLAGS entirely.

[bashrules]

Apparently, cpuflags.mk is just doing what I'm doing as well, adding -march=XXX to the mk.conf's CFLAGS variable.