Build fails on Ubuntu 16.04

[Kukant]

Does anyone have a clue what cut be wrong?
Build log:
...
Making all in bin
make[2]: Entering directory '/home/zeusko/Plocha/libnf/bin'
/bin/bash ../libtool --tag=CC --mode=link gcc -I../include -g -O2 -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wmissing-noreturn -fno-strict-aliasing -DLNF_THREADS -DNSEL -o nfdumpp nfdumpp.o flist.o cpucores.o output.o output_line.o output_nfdump.o output_ringbuf.o progress.o ../src/.libs/libnf.a -lpthread -lresolv -lpthread
libtool: link: gcc -I../include -g -O2 -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wmissing-noreturn -fno-strict-aliasing -DLNF_THREADS -DNSEL -o nfdumpp nfdumpp.o flist.o cpucores.o output.o output_line.o output_nfdump.o output_ringbuf.o progress.o ../src/.libs/libnf.a -lresolv -lpthread
../src/.libs/libnf.a(lnf_ringbuf.o): In function lnf_ring_init': /home/zeusko/Plocha/libnf/src/lnf_ringbuf.c:88: undefined reference to shm_open'
/home/zeusko/Plocha/libnf/src/lnf_ringbuf.c:74: undefined reference to shm_unlink' /home/zeusko/Plocha/libnf/src/lnf_ringbuf.c:94: undefined reference to shm_open'
../src/.libs/libnf.a(lnf_ringbuf.o): In function lnf_ring_free': /home/zeusko/Plocha/libnf/src/lnf_ringbuf.c:314: undefined reference to shm_unlink'
collect2: error: ld returned 1 exit status
Makefile:392: recipe for target 'nfdumpp' failed
make[2]: *** [nfdumpp] Error 1
...

[mgregr]

Probably connected with e7d1a99. Try uncomment the line, it should help.

[Kukant]

That solved it, thanks.

[tpoder1]

I would keep the issue open until we find some automatic/smart way to deal with -lrt option on various platforms.