I did a search with: find . -name "librtlsdr.so" -exec ls -lh "{}" \;
Find in: "./usr/lib/arm-linux-gnueabihf/librtlsdr.so "
Then I made the following change:
Add full path (./usr/lib/arm-linux-gnueabihf/librtlsdr.so) after “-lfftw3 -L”): cd kalibrate-rtl/src g++ -I/ -W -Wall -O3 -o kal kal-arfcn_freq.o kal-c0_detect.o kal-circular_buffer.o kal-fcch_detector.o kal-kal.o kal-offset.o kal-usrp_source.o kal-util.o -lfftw3 -L ./usr/lib/arm-linux-gnueabihf/librtlsdr.so -lrtlsdr -lrt
I relaunched the commands: cd kalibrate-rtl/ ./bootstrap ./configure make sudo make install
It now works for me.
Can someone possibly confirm whether to modify the wiki or provide a better solution from it?