Use detected libraries in CMakeLists.txt instead of hardcoded ones.

Should fix some issues while building/linking libqpms.so;
still needs to be somehow done in the Python part as well.

qpms/CMakeLists.txt

@@ -23,9 +23,9 @@ set(LIBS ${LIBS} ${GSL_LIBRARIES} ${GSLCBLAS_LIBRARIES})
 
 
 target_link_libraries (qpms
-	gsl
-	lapack
-	blas
+	${GSL_LIBRARIES}
+	${LAPACK_LIBRARIES}
+	${BLAS_LIBRARIES}
 	${QPMS_AMOSLIB}
 	Faddeeva
 	)