--- cmake/MainConfig.cmake	2025-10-19 22:23:51.000000000 +0800
+++ cmake/MainConfig.cmake	2025-12-01 15:30:10.000000000 +0800
@@ -12,48 +12,10 @@
 #DEFAULT LOCATION for installation is $HOME/opt/<libname>
 SET(DEFAULT_LOCATION "$ENV{HOME}/opt")
 
+SET(PREFIX "@PREFIX@" CACHE PATH "Prefix prepended to install directories")
 
-#IF CIP IS DEFAULT (i.e. /usr/local in Unix/Linux) then we use DEFAULT_LOCATION + possible addendum
-#if LONG_PREFIX=on
-IF (CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
-  IF (LONG_PREFIX)
-    SET(PATH_ID "${FC_ID}" CACHE INTERNAL "Default Path ID" FORCE)
-    #IF not master branch, include simplified branch name
-    IF( (NOT GIT_BRANCH MATCHES "master") )
-      SET(PATH_ID  "${PATH_ID}/${GIT_BRANCH}")
-    ENDIF()
-    #IF DEBUG, add /debug to
-    IF("${BUILD_TYPE}" MATCHES "debug")
-      SET(PATH_ID  "${PATH_ID}/${BUILD_TYPE}")
-    ENDIF()
-    #set to $HOME/opt/<libname>(/<fc_id>/[<git_branch>{/<debug>}]/<version>)
-    #set module name accordingly
-    SET(DEFAULT_PREFIX "${DEFAULT_LOCATION}/${PROJECT_NAME}/${PATH_ID}/${VERSION}")    
-    SET(MODULE_NAME "${PROJECT_NAME}/${PATH_ID}/${VERSION}")
-    SET(FULL_VER "${PATH_ID}/${VERSION}")
-  ELSE()
-    SET(PATH_ID "custom" CACHE INTERNAL "Custom Path ID" FORCE)
-    #set to $HOME/opt/<libname>
-    #set module name accordingly
-    SET(DEFAULT_PREFIX "${DEFAULT_LOCATION}/${PROJECT_NAME}/${PATH_ID}")
-    SET(MODULE_NAME "${PROJECT_NAME}/${PATH_ID}")
-    SET(FULL_VER "${PATH_ID}")
-  ENDIF(LONG_PREFIX)
-ELSE()
-  SET(PATH_ID "custom" CACHE INTERNAL "Custom Path ID" FORCE)
-  #set to user defined CMAKE_INSTALL_PREFIX
-  #set module name accordingly
-  SET(DEFAULT_PREFIX "${CMAKE_INSTALL_PREFIX}")
-  SET(MODULE_NAME "${PROJECT_NAME}/${PATH_ID}")
-  SET(FULL_VER "${PATH_ID}")
-ENDIF()
+# Set the resulting DEFAULT_PREFIX to CMAKE_INSTALL_PREFIX
+SET(CMAKE_INSTALL_PREFIX "${PREFIX}" CACHE INTERNAL "Prefix prepended to install directories" FORCE)
 
-
-#SET the resulting DEFAULT_PREFIX to CMAKE_INSTALL_PREFIX
-SET(CMAKE_INSTALL_PREFIX "${DEFAULT_PREFIX}" CACHE INTERNAL "Prefix prepended to install directories" FORCE)
-
-
-#Set the module .version file name to be used later in PostConfig.cmake
+# Set the module .version file name to be used later in PostConfig.cmake
 SET(VERSION_PATH "${PROJECT_NAME}/${PATH_ID}")
-
-