On May 31, 2016, at 10:51 AM, Daniel P. Berrange wrote: > On Tue, May 31, 2016 at 10:25:20AM -0400, Programmingkid wrote: >> >> On May 31, 2016, at 10:00 AM, Daniel P. Berrange wrote: >> >>> On Fri, May 20, 2016 at 04:43:51PM -0600, Eric Blake wrote: >>>> On 05/20/2016 01:15 PM, Programmingkid wrote: >>>>> Noticed this bug after a 'git pull'. My repo is at commit >>>>> 65603e2fc18b48e6e55a3dd693669413141694ec - >>>>> tci: do not include exec/exec-all.h >>>>> >>>>> I am building QEMU on Mac OS 10.6 with GCC 4.9. >>>>> Here is the full message: >>>>> >>>>> LINK qemu-nbd >>>>> Undefined symbols for architecture x86_64: >>>>> "_nettle_cast5_set_key", referenced from: >>>>> _qcrypto_cipher_new in cipher.o >>>> >>>> What version of nettle are you compiling against? Obviously it's an >>>> older version, but is it one that we need to work around at configure >>>> time, or one that you should just update locally? >>> >>> So we already have compatibility code to allow us to build with older >>> versions of nettle that I've tested right back to nettle 2.4. >>> >>> The "cast5_set_key" method is present in the nettle 3.2 version that >>> Programmingkid has installed. The nettle headers mangle the name >>> 'cast5_set_key' into 'nettle_cast5_set_key', but I'm not sure where >>> the extra leading '_' is coming from in either _nettle_cast5_set_key >>> or _qcrypto_cipher_new. Presumably that is something specific to >>> Os-X linking. >>> >>> So I don't think this is a question of incompatible older versions of >>> nettle. Rather than is some problem with linking going on here. >>> >>> >>> I'd like to see the output of 'configure' as well as the config.log >>> and config-host.mak files that it generates when showing this error. >>> >>> Also I'd like the output of 'make V=1' so we see the full linker >>> command line, not just the summary. >>> >>> Regards, >>> Daniel >> >> Here is everything you wanted: configure output, config.log, >> config-host.mak, and make V=1. >> >> $ ./configure --cxx=gcc-4.9 --cc=gcc-4.9 --objcc=gcc-4.9 --disable-gtk >> --disable-sdl --target-list=ppc-softmmu,i386-softmmu >> ld: unknown option: --verbose > > >> GNUTLS support yes >> GNUTLS hash yes >> GNUTLS rnd yes >> libgcrypt no >> libgcrypt kdf no >> nettle yes (3.2) >> nettle kdf yes > > Ok, that shows we've detected your nettle 3.2 install. The > support for 'kdf' also shows we successfully compiled and > linked against that. This is shows your 3.2 install of nettle > is present & correct which is good. > >> libtasn1 yes >> curses support yes >> virgl support no >> curl support yes >> mingw32 support no >> Audio drivers coreaudio >> Block whitelist (rw) >> Block whitelist (ro) >> VirtFS support no >> VNC support yes >> VNC SASL support yes >> VNC JPEG support yes >> VNC PNG support yes >> xen support no >> brlapi support no >> bluez support no >> Documentation yes >> PIE no >> vde support no >> netmap support no >> Linux AIO support no >> ATTR/XATTR support no >> Install blobs yes >> KVM support no >> RDMA support no >> TCG interpreter no >> fdt support yes >> preadv support no >> fdatasync no >> madvise yes >> posix_madvise yes >> sigev_thread_id no >> uuid support yes >> libcap-ng support no >> vhost-net support no >> vhost-scsi support no >> Trace backends log >> spice support no >> rbd support no >> xfsctl support no >> smartcard support no >> libusb yes >> usb net redir yes >> OpenGL support no >> OpenGL dmabufs no >> libiscsi support no >> libnfs support no >> build guest agent yes >> QGA VSS support no >> QGA w32 disk info no >> QGA MSI support no >> seccomp support no >> coroutine backend sigaltstack >> coroutine pool yes >> GlusterFS support no >> Archipelago support no >> gcov gcov >> gcov enabled no >> TPM support yes >> libssh2 support no >> TPM passthrough no >> QOM debugging yes >> vhdx yes >> lzo support no >> snappy support no >> bzip2 support yes >> NUMA host support no >> tcmalloc support no >> jemalloc support no >> avx2 optimization no >> >> >> >> The config.log file: >> > > >> gcc-4.9 -m64 -DOS_OBJECT_USE_OBJC=0 -arch x86_64 -D_GNU_SOURCE >> -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes >> -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes >> -fno-strict-aliasing -fno-common -Wendif-labels -Wmissing-include-dirs >> -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self >> -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition >> -Wtype-limits -fstack-protector-strong >> -I/usr/local/Cellar/gnutls/3.4.11/include >> -I/usr/local/Cellar/nettle/3.2/include >> -I/usr/local/Cellar/libtasn1/4.8/include -I/opt/local/include -o >> config-temp/qemu-conf.exe config-temp/qemu-conf.c -m64 -framework >> CoreFoundation -framework IOKit -arch x86_64 -g >> -L/usr/local/Cellar/gnutls/3.4.11/lib -lgnutls > > > >> gcc-4.9 -m64 -DOS_OBJECT_USE_OBJC=0 -arch x86_64 -D_GNU_SOURCE >> -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes >> -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes >> -fno-strict-aliasing -fno-common -Wendif-labels -Wmissing-include-dirs >> -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self >> -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition >> -Wtype-limits -fstack-protector-strong >> -I/usr/local/Cellar/gnutls/3.4.11/include >> -I/usr/local/Cellar/nettle/3.2/include >> -I/usr/local/Cellar/libtasn1/4.8/include -I/opt/local/include >> -I/usr/local/Cellar/nettle/3.2/include >> -I/usr/local/Cellar/nettle/3.2/include -o config-temp/qemu-conf.exe >> config-temp/qemu-conf.c -m64 -framework CoreFoundation -framework IOKit >> -arch x86_64 -g -L/usr/local/Cellar/nettle/3.2/lib -lnettle > > This is the link line where configure tested for the KDF function and it > looks normal and > is pointing the linker to /usr/local/Cellar/nettle/3.2/lib > > > >> gcc-4.9 -I/opt/local/include/pixman-1 >> -I/Users/john/Documents/Development/Projects/Qemu/qemu-git/dtc/libfdt -m64 >> -DOS_OBJECT_USE_OBJC=0 -arch x86_64 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 >> -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef >> -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fno-common >> -Wendif-labels -Wmissing-include-dirs -Wempty-body -Wnested-externs >> -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers >> -Wold-style-declaration -Wold-style-definition -Wtype-limits >> -fstack-protector-strong -I/usr/local/Cellar/gnutls/3.4.11/include >> -I/usr/local/Cellar/nettle/3.2/include >> -I/usr/local/Cellar/libtasn1/4.8/include -I/opt/local/include >> -I/usr/local/Cellar/nettle/3.2/include -I/opt/local/include/libpng16 >> -I/usr/local/Cellar/libusb/1.0.20/include/libusb-1.0 >> -I/usr/local/Cellar/usbredir/0.7.1/include >> -I/Users/john/Documents/Development/Projects/Qemu/qemu-git/tests -O2 >> -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -D_REENTRANT >> -I/usr/local/Cellar/glib/2.46.2/include/glib-2.0 >> -I/usr/local/Cellar/glib/2.46.2/lib/glib-2.0/include >> -I/usr/local/opt/gettext/include -g -m64 -framework CoreFoundation >> -framework IOKit -arch x86_64 -g -o qemu-nbd qemu-nbd.o async.o >> thread-pool.o block.o blockjob.o main-loop.o iohandler.o qemu-timer.o >> aio-posix.o qemu-io-cmds.o block/raw_bsd.o block/qcow.o block/vdi.o >> block/vmdk.o block/cloop.o block/bochs.o block/vpc.o block/vvfat.o >> block/qcow2.o block/qcow2-refcount.o block/qcow2-cluster.o >> block/qcow2-snapshot.o block/qcow2-cache.o block/qed.o block/qed-gencb.o >> block/qed-l2-cache.o block/qed-table.o block/qed-cluster.o block/qed-check.o >> block/vhdx.o block/vhdx-endian.o block/vhdx-log.o block/quorum.o >> block/parallels.o block/blkdebug.o block/blkverify.o block/blkreplay.o >> block/block-backend.o block/snapshot.o block/qapi.o block/raw-posix.o >> block/null.o block/mirror.o block/io.o block/throttle-groups.o block/nbd.o >> block/nbd-client.o block/sheepdog.o block/accounting.o block/dirty-bitmap.o >> block/write-threshold.o block/crypto.o nbd/server.o nbd/client.o >> nbd/common.o block/curl.o block/dmg.o crypto/init.o crypto/hash.o >> crypto/aes.o crypto/desrfb.o crypto/cipher.o crypto/tlscreds.o >> crypto/tlscredsanon.o crypto/tlscredsx509.o crypto/tlssession.o >> crypto/secret.o crypto/random-gnutls.o crypto/pbkdf.o crypto/pbkdf-nettle.o >> crypto/ivgen.o crypto/ivgen-essiv.o crypto/ivgen-plain.o >> crypto/ivgen-plain64.o crypto/afsplit.o crypto/xts.o crypto/block.o >> crypto/block-qcow.o crypto/block-luks.o io/channel.o io/channel-buffer.o >> io/channel-command.o io/channel-file.o io/channel-socket.o io/channel-tls.o >> io/channel-watch.o io/channel-websock.o io/channel-util.o io/task.o >> qom/object.o qom/container.o qom/qom-qobject.o qom/object_interfaces.o >> libqemuutil.a libqemustub.a -lz -L/opt/local/lib -lcurl -lbz2 >> -L/usr/local/Cellar/glib/2.46.2/lib -L/usr/local/opt/gettext/lib >> -lgthread-2.0 -lglib-2.0 -lintl -lz -lz -L/usr/local/Cellar/nettle/3.2/lib >> -lnettle -L/usr/local/Cellar/gnutls/3.4.11/lib -lgnutls -lutil >> Undefined symbols for architecture x86_64: >> "_nettle_cast5_set_key", referenced from: >> _qcrypto_cipher_new in cipher.o >> ld: symbol(s) not found for architecture x86_64 >> collect2: error: ld returned 1 exit status >> make: *** [qemu-nbd] Error 1 > > This linker line again looks basically sound. It is still passing the > correct -lnettle arg, and the -I and -L args to point to the nettle > 3.2 installation. > > Given that we found the "KDF" support in nettle, we know that it is > new enough to support the "nettle_cast5_set_key" function too so > we ought to link correctly. > > The only thing that occurs to me is that we have a number of other > -L args present - eg -L/opt/local/lib. > > I wonder if one of those other search paths has a differnet version > of nettle installed in it, causing gcc to link to the wrong one.
I did a search and found libnettle.4.7.dylib in /opt/local/lib. I also found libnettle.6.2.dylib in /usr/local/Cellar/nettle/3.2/lib.
