On 14.11.2011 16:47, Arnd Hannemann wrote: > This patch fixes the following compile error when compiled with > gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3): > > gcc -lpthread -g -O0 -o btrfs btrfs.o btrfs_cmds.o scrub.o \ > ctree.o disk-io.o radix-tree.o extent-tree.o print-tree.o root-tree.o dir-item.o file-item.o inode-item.o inode-map.o crc32c.o rbtree.o extent-cache.o extent_io.o volumes.o utils.o btrfs-list.o btrfslabel.o -luuid > scrub.o: In function `scrub_start': > /home/arnd/Projekte/kernel/btrfs-progs/scrub.c:1342: undefined reference to `pthread_create' > /home/arnd/Projekte/kernel/btrfs-progs/scrub.c:1360: undefined reference to `pthread_create' > /home/arnd/Projekte/kernel/btrfs-progs/scrub.c:1374: undefined reference to `pthread_join' > /home/arnd/Projekte/kernel/btrfs-progs/scrub.c:1430: undefined reference to `pthread_cancel' > /home/arnd/Projekte/kernel/btrfs-progs/scrub.c:1432: undefined reference to `pthread_join' > collect2: ld returned 1 exit status > make: *** [btrfs] Error 1 > > The gcc man page says: "[...] the placement of the -l option is significant." so lets include -lpthread together with the usual $(LIBS) > > Signed-off-by: Arnd Hannemann <arnd@xxxxxxxxxx> Signed-off-by: Jan Schmidt <list.btrfs@xxxxxxxxxxxxx> Sergei also sent this patch a week ago. I agree with you. David, do you want to investigate the -pthread option? -Jan -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
