undefined reference to `backtrace_symbols'

[Marietto2008]

Trying to compile it on NetBSD...

netbsd-marietto# gmake

cc -I/usr/pkg/include/fuse -D_FILE_OFFSET_BITS=64 -DFUSE_USE_VERSION=26 -std=gnu99 -g3 -Wall -Wextra -DEXT4FUSE_VERSION="v0.1.3-20-g6b23d8d" -c -o fuse-main.o fuse-main.c
cc -I/usr/pkg/include/fuse -D_FILE_OFFSET_BITS=64 -DFUSE_USE_VERSION=26 -std=gnu99 -g3 -Wall -Wextra -DEXT4FUSE_VERSION="v0.1.3-20-g6b23d8d" -c -o logging.o logging.c
cc -I/usr/pkg/include/fuse -D_FILE_OFFSET_BITS=64 -DFUSE_USE_VERSION=26 -std=gnu99 -g3 -Wall -Wextra -DEXT4FUSE_VERSION="v0.1.3-20-g6b23d8d" -c -o extents.o extents.c
cc -I/usr/pkg/include/fuse -D_FILE_OFFSET_BITS=64 -DFUSE_USE_VERSION=26 -std=gnu99 -g3 -Wall -Wextra -DEXT4FUSE_VERSION="v0.1.3-20-g6b23d8d" -c -o disk.o disk.c
cc -I/usr/pkg/include/fuse -D_FILE_OFFSET_BITS=64 -DFUSE_USE_VERSION=26 -std=gnu99 -g3 -Wall -Wextra -DEXT4FUSE_VERSION="v0.1.3-20-g6b23d8d" -c -o super.o super.c
cc -I/usr/pkg/include/fuse -D_FILE_OFFSET_BITS=64 -DFUSE_USE_VERSION=26 -std=gnu99 -g3 -Wall -Wextra -DEXT4FUSE_VERSION="v0.1.3-20-g6b23d8d" -c -o inode.o inode.c
cc -I/usr/pkg/include/fuse -D_FILE_OFFSET_BITS=64 -DFUSE_USE_VERSION=26 -std=gnu99 -g3 -Wall -Wextra -DEXT4FUSE_VERSION="v0.1.3-20-g6b23d8d" -c -o dcache.o dcache.c
cc -I/usr/pkg/include/fuse -D_FILE_OFFSET_BITS=64 -DFUSE_USE_VERSION=26 -std=gnu99 -g3 -Wall -Wextra -DEXT4FUSE_VERSION="v0.1.3-20-g6b23d8d" -c -o op_read.o op_read.c
cc -I/usr/pkg/include/fuse -D_FILE_OFFSET_BITS=64 -DFUSE_USE_VERSION=26 -std=gnu99 -g3 -Wall -Wextra -DEXT4FUSE_VERSION="v0.1.3-20-g6b23d8d" -c -o op_readdir.o op_readdir.c
cc -I/usr/pkg/include/fuse -D_FILE_OFFSET_BITS=64 -DFUSE_USE_VERSION=26 -std=gnu99 -g3 -Wall -Wextra -DEXT4FUSE_VERSION="v0.1.3-20-g6b23d8d" -c -o op_readlink.o op_readlink.c
cc -I/usr/pkg/include/fuse -D_FILE_OFFSET_BITS=64 -DFUSE_USE_VERSION=26 -std=gnu99 -g3 -Wall -Wextra -DEXT4FUSE_VERSION="v0.1.3-20-g6b23d8d" -c -o op_init.o op_init.c
cc -I/usr/pkg/include/fuse -D_FILE_OFFSET_BITS=64 -DFUSE_USE_VERSION=26 -std=gnu99 -g3 -Wall -Wextra -DEXT4FUSE_VERSION="v0.1.3-20-g6b23d8d" -c -o op_getattr.o op_getattr.c
cc -I/usr/pkg/include/fuse -D_FILE_OFFSET_BITS=64 -DFUSE_USE_VERSION=26 -std=gnu99 -g3 -Wall -Wextra -DEXT4FUSE_VERSION="v0.1.3-20-g6b23d8d" -c -o op_open.o op_open.c
cc -o ext4fuse fuse-main.o logging.o extents.o disk.o super.o inode.o dcache.o op_read.o op_readdir.o op_readlink.o op_init.o op_getattr.o op_open.o -L/usr/pkg/lib -lfuse -pthread
ld: fuse-main.o: in function `signal_handle_sigsegv':

/home/mario/Desktop/Dati-NetBSD/ext4fuse/fuse-main.c:88: undefined reference to backtrace' ld: /home/mario/Desktop/Dati-NetBSD/ext4fuse/fuse-main.c:89: undefined reference to backtrace_symbols'