Build a QT program from command line - qt

Question

I know this question has already been asked, but I encounter an issue that I haven't seen elsewhere.
I am trying to build automatically a QT program on Jenkins through a JenkinsFile.
So I want to build this program in command line.
On Qt Creator, everything works fine, my makefile is generated and the program compiles.
But when I manually type the exact commands that are executed in Qt on a terminal (cmd and cygwin), the compilation fails.
The errors are usually ld: cannot find -lXXXXXX
My guess is that it is an environment problem so I tried to add some lib paths in the $PATH, $LIBRARY_PATH, and $LD_LIBRARY_PATH variables but it doesn't resolve the problem. The error just becomes Undefined reference to ___XXXXXX
I would appreciate some help on this issue !
Thanks.
EDIT
The building (slave) machine is a windows 7. Here is a screenshot of the compilation stage in Qt (which works fine). The commands I try to type in a terminal are exactly the same as the blue lines on the screenshot. (sorry some lines are written in French)

Answer 1

From the error message ld: cannot find -lXXXXXX and the environment variables, I would suppose that you are compiling in Linux/Unix. Now, if you are compiling with g++, the environment variables $PATH, $LIBRARY_PATH, and $LD_LIBRARY_PATH won't have any effect on finding libraries. What you may try is an -L argument to the compiler telling it where the library is located, I mean:
g++ -L /path/to/libXXXXX.so -l XXXXX -o result source.cpp