"undefined reference to `clock_gettime'" when trying to compile slop on Ubuntu 12.04 about slop

[naelstrof]

That's right. Then to compile you should do:

export LDFLAGS=-lrt
cmake ./
make && sudo make install

Sorry for the trouble!

[naelstrof]

Try adding #include <time.h> at the top of main.cpp. And probably link to -lrt as well. So define LDFLAGS=-lrt I think before cmaking/making.

I'll make an official commit to fix this if you mind waiting a few minutes.

[glutanimate]

Thanks for the swift response!

I've added the new include line to main.cpp, but I am still getting the same error message.

Just to be sure I didn't do anything wrong, this is what the include segment now looks like:

#include <time.h>
#include <unistd.h>
#include <cstdio>
#include <sstream>

#include "x.hpp"
#include "rectangle.hpp"
#include "cmdline.h"

[glutanimate]

Mmh, I am running into the same error still:

$ cat src/main.cpp | head -27
/* main.cpp
 *
 * Copyright (C) 2014: Dalton Nell, Slop Contributors (https://github.com/naelstrof/slop/graphs/contributors).
 *
 * This file is part of Slop.
 *
 * Slop is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Slop is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Slop.  If not, see <http://www.gnu.org/licenses/>.
 */
#include <time.h>
#include <unistd.h>
#include <cstdio>
#include <sstream>

#include "x.hpp"
#include "rectangle.hpp"
#include "cmdline.h"

$ export LDFLAGS=-lrt

$ cmake ./
-- The C compiler identification is GNU 4.6.3
-- The CXX compiler identification is GNU 4.6.3
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/g++
-- Check for working CXX compiler: /usr/bin/g++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
Command gengetopt or sed not found! Won't regenerate command line code.
Replacing version in readme...
-- Looking for XOpenDisplay in /usr/lib/x86_64-linux-gnu/libX11.so;/usr/lib/x86_64-linux-gnu/libXext.so
-- Looking for XOpenDisplay in /usr/lib/x86_64-linux-gnu/libX11.so;/usr/lib/x86_64-linux-gnu/libXext.so - found
-- Looking for gethostbyname
-- Looking for gethostbyname - found
-- Looking for connect
-- Looking for connect - found
-- Looking for remove
-- Looking for remove - found
-- Looking for shmat
-- Looking for shmat - found
-- Looking for IceConnectionNumber in ICE
-- Looking for IceConnectionNumber in ICE - found
-- Found X11: /usr/lib/x86_64-linux-gnu/libX11.so
-- Configuring done
-- Generating done
-- Build files have been written to: /home/glutanimate/slop

$ make
Linking CXX executable slop
CMakeFiles/slop.dir/src/main.cpp.o: In function `app(int, char**)':
main.cpp:(.text+0xe3d): undefined reference to `clock_gettime'
main.cpp:(.text+0xe56): undefined reference to `clock_gettime'
collect2: ld returned 1 exit status
make[2]: *** [slop] Error 1
make[1]: *** [CMakeFiles/slop.dir/all] Error 2
make: *** [all] Error 2

[naelstrof]

Can you run it with make VERBOSE=1?

[naelstrof]

I just pushed a commit which should fix it: 77f5af1

You can try re-cloning/pulling and then attempt compiling again.

[glutanimate]

Yep, that fixed it. Thanks!!