Public bug reported: I have libsensors4-dev installed however gcc is getting link errors,
gcc -O2 -Wuninitialized -Wall -D_FORTIFY_SOURCE=2 -Wformat -Wno-multichar -Wreturn-type -Wswitch -Wunused-variable -g -lm -pthread -lsensors -o sys_basher sys_main.o sys_utils.o sys_disk.o sys_kernel.o sys_fp.o sys_int.o sys_mem.o lin_utils.o -lsensors sys_sensors3.o sys_sensors3.o: In function `getTemps': /home/bjrosen/projects/sys_basher/sys_sensors3.c:52: undefined reference to `sensors_init' /home/bjrosen/projects/sys_basher/sys_sensors3.c:65: undefined reference to `sensors_get_detected_chips' /home/bjrosen/projects/sys_basher/sys_sensors3.c:72: undefined reference to `sensors_get_features' /home/bjrosen/projects/sys_basher/sys_sensors3.c:110: undefined reference to `sensors_get_features' /home/bjrosen/projects/sys_basher/sys_sensors3.c:75: undefined reference to `sensors_get_label' /home/bjrosen/projects/sys_basher/sys_sensors3.c:94: undefined reference to `sensors_get_value' /home/bjrosen/projects/sys_basher/sys_sensors3.c:114: undefined reference to `sensors_get_detected_chips' /home/bjrosen/projects/sys_basher/sys_sensors3.c:117: undefined reference to `sensors_cleanup' /home/bjrosen/projects/sys_basher/sys_sensors3.c:100: undefined reference to `sensors_cleanup' collect2: error: ld returned 1 exit status I'm trying to build by sys_basher program for Ubuntu. I have it in the Fedora and EPEL repositories for RPM systems where it builds without any errors or warnings. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: libsensors4-dev 1:3.3.4-2ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 Date: Sat Jul 26 11:38:49 2014 Dependencies: gcc-4.9-base 4.9-20140406-0ubuntu1 libc6 2.19-0ubuntu6 libgcc1 1:4.9-20140406-0ubuntu1 libsensors4 1:3.3.4-2ubuntu1 multiarch-support 2.19-0ubuntu6 InstallationDate: Installed on 2014-07-22 (4 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) ProcEnviron: TERM=dumb PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/tcsh SourcePackage: lm-sensors UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: lm-sensors (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1348945 Title: -lsensors doesn't link to libsensors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lm-sensors/+bug/1348945/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs