make issue /usr/bin/ld: cannot find -lpci (Ubuntu 16.04.3 LTS)

[StorageGuru]

Hi there, I should have installed all the requirements:

• OpenCL environemnt (guess it's installed with the AMD drivers amdgpu-pro-17.30-465504.tar.xz)
• pciutils in /home/miner/pciutils (compilation went through)
• libadlxx.so library (AMD ADL library) thought they'd come with ADL SDK V 10 http://developer.amd.com/display-library-adl-sdk/ but this file is not included in zip file!!!

Makefile ADLSDKDIR = /home/miner/treiber/AMD_ADL PCIDIR = /home/miner/pciutils CXX = g++ CXXFLAGS = -Wall -O3 -std=c++11 LDFLAGS = -Wall -O3 -std=c++11 INCDIRS = -I$(ADLSDKDIR)/include -I$(PCIDIR) LIBDIRS = -L/opt/amdgpu-pro/lib/x86_64-linux-gnu

LIBDIRS =

LIBS = -ldl -lpci -lm -lOpenCL -pthread [...]

If I run make I run into this: miner@erpel2:~/amdcovc$ make g++ -Wall -O3 -std=c++11 -L/opt/amdgpu-pro/lib/x86_64-linux-gnu -o amdcovc amdcovc.o -ldl -lpci -lm -lOpenCL -pthread /usr/bin/ld: cannot find -lpci collect2: error: ld returned 1 exit status Makefile:25: recipe for target 'amdcovc' failed make: *** [amdcovc] Error 1

Unfortunately I am far from being a Linux champion so any hint is appreciated . Thanks, Stefan

[matszpk]

To build amdcovc, you should install libpci-dev, libpci3 and pciutils packages (by apt-get install). Any user built of pciutils is not needed. This library and its development files are needed in system (this is recommended place) to build amdcovc.

[StorageGuru]

Hi matszpk, many thanks, that fixed it and I got amdcvoc running. However the output "VDDC voltage available only for AMD Catalyst/Crimson drivers." indicates that I cannot undervolt in Linux as Crimson drivers only support Windows, right ?