Bilal Amarni <1658...@bugs.launchpad.net> writes: > Public bug reported: > > Hi, while trying to build qemu v2.8.0 with gcc-aarch64-linux-gnu cross- > compiler I'm getting the following : > > > In file included from /usr/include/x86_64-linux-gnu/sys/syscall.h:31:0, > from /root/qemu/util/compatfd.c:21: > /root/qemu/util/compatfd.c: In function 'qemu_signalfd': > /root/qemu/util/compatfd.c:103:19: error: '__NR_signalfd' undeclared (first > use in this function) > ret = syscall(SYS_signalfd, -1, mask, _NSIG / 8); > ^ > /root/qemu/util/compatfd.c:103:19: note: each undeclared identifier is > reported only once for each function it appears in > /root/qemu/rules.mak:59: recipe for target 'util/compatfd.o' failed > make: *** [util/compatfd.o] Error 1 > > > I had configured it with : > > ../configure --target-list=x86_64-linux-user --static --cpu=aarch64 > > And I'm on : > > Linux ubuntu-512mb-fra1-01 4.4.0-59-generic #80-Ubuntu SMP Fri Jan 6 > 17:47:47 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
Do you have: /usr/include/aarch64-linux-gnu/bits/syscall.h In your system? When cross compiling it is these sort of problems come from not having the architecture specific development files. On Ubuntu you want something like: apt-get build-dep -a arm64 qemu -- Alex Bennée
