pam UPDATE moved pam test conf file to build

PAM testing configuration file now generates in build/tests instead of
/tests
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 64a0496..e7ca099 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -91,7 +91,7 @@
     target_link_libraries(pam_netconf ${LIBPAM_LIBRARIES})
 
     #generate PAM configuration file
-    file(WRITE ${CMAKE_SOURCE_DIR}/tests/pam/netconf.conf
+    file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/netconf.conf
         "#%PAM-1.4\n"
         "auth required ${CMAKE_CURRENT_BINARY_DIR}/pam_netconf.so\n"
         "account required ${CMAKE_CURRENT_BINARY_DIR}/pam_netconf.so\n"