On Mon, Mar 9, 2015 at 9:57 PM, Ingo Molnar <[email protected]> wrote: > > * Andy Lutomirski <[email protected]> wrote: > >> On Mon, Mar 9, 2015 at 9:48 AM, Ingo Molnar <[email protected]> wrote: >> > >> > now I get this build failure: >> > >> > make[1]: Entering directory >> > '/home/mingo/tip/tools/testing/selftests/x86' >> > gcc -m32 -o sigreturn_32 -O2 -g -std=gnu99 -pthread -Wall sigreturn.c >> > -lrt -ldl >> > In file included from /usr/include/time.h:27:0, >> > from sigreturn.c:13: >> > /usr/include/features.h:374:25: fatal error: sys/cdefs.h: No such file or >> > directory >> > # include <sys/cdefs.h> >> > ^ >> > compilation terminated. >> > Makefile:18: recipe for target 'sigreturn_32' failed >> > make[1]: *** [sigreturn_32] Error 1 >> >> It builds for me on Ubuntu. >> >> It looks like your 32-bit build setup is broken. The line that's >> failing to compile is: >> >> #include <time.h> >> >> Are you missing 32-bit headers? This test *can't* be run as a 64-bit binary. > > Yeah, was a relatively fresh testbox, the magic incantation to get it > to build there was: > > apt-get install gcc-multilib libc6-i386 libc6-dev-i386 > > On Fedora it's: > > yum install glibc-devel.*i686 > > Might make sense to include that in a README or so.
I could rig up the makefile to give that hint. Should we just say that selftests/x86 won't work if you can't build 32-bit binaries, or should we try to degrade more gracefully? --Andy > > Thanks, > > Ingo -- Andy Lutomirski AMA Capital Management, LLC -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
