--- dnf-4.6.1/CMakeLists.txt~	2021-03-02 15:05:07.000000000 +0100
+++ dnf-4.6.1/CMakeLists.txt	2021-03-13 19:31:43.720803912 +0100
@@ -3,8 +3,12 @@
 
 INCLUDE (${CMAKE_SOURCE_DIR}/VERSION.cmake)
 
+IF (NOT SYSCONFDIR)
 SET( SYSCONFDIR /etc)
+ENDIF()
+IF (NOT SYSTEMD_DIR)
 SET( SYSTEMD_DIR /usr/lib/systemd/system)
+ENDIF()
 
 IF (NOT PYTHON_DESIRED)
     FIND_PACKAGE (PythonInterp REQUIRED)
@@ -19,7 +19,9 @@
     MESSAGE (FATAL_ERROR "Invalid PYTHON_DESIRED value: " ${PYTHON_DESIRED})
 ENDIF()
 
+IF (NOT PYTHON_INSTALL_DIR)
 EXECUTE_PROCESS(COMMAND ${PYTHON_EXECUTABLE} -c "from sys import stdout; from sysconfig import get_path; stdout.write(get_path('purelib'))" OUTPUT_VARIABLE PYTHON_INSTALL_DIR)
+ENDIF()
 MESSAGE(STATUS "Python install dir is ${PYTHON_INSTALL_DIR}")
 
 ADD_SUBDIRECTORY (dnf)