--- stellarium-0.20.4.old/CMakeLists.txt
+++ stellarium-0.20.4/CMakeLists.txt
@@ -304,7 +304,7 @@
 
 ########### Others ###########
 # Activate translation
-SET(ENABLE_NLS 1 CACHE BOOL "Define whether program translation should be supported.")
+# SET(ENABLE_NLS 1 CACHE BOOL "Define whether program translation should be supported.")
 IF(ENABLE_NLS)
      ADD_DEFINITIONS(-DENABLE_NLS)
 ENDIF()
@@ -632,18 +632,12 @@
 ENDIF()
 
 ########### Set some global variables ###########
-IF(UNIX AND NOT WIN32)
-     IF(APPLE)
-          SET(CMAKE_INSTALL_PREFIX "${PROJECT_BINARY_DIR}/Stellarium.app/Contents")
-     ELSE()
-          ADD_DEFINITIONS(-DINSTALL_DATADIR="${CMAKE_INSTALL_PREFIX}/${SDATALOC}")          
-          # Used in generating the documentation (doc/stellarium.pod.cmake):
-          SET(INSTALL_DATADIR "${CMAKE_INSTALL_PREFIX}/${SDATALOC}")
-     ENDIF()
-ELSE()
-     ADD_DEFINITIONS(-DINSTALL_DATADIR=".")
-     ADD_DEFINITIONS(-DINSTALL_LOCALEDIR="./locale")
-ENDIF()
+SET(CMAKE_INSTALL_PREFIX "__META_PREFIX__")
+SET(INSTALL_DATADIR "${CMAKE_INSTALL_PREFIX}/data")
+SET(INSTALL_LOCALEDIR "${CMAKE_INSTALL_PREFIX}/locale")
+ADD_DEFINITIONS(-DINSTALL_DATADIR="${CMAKE_INSTALL_PREFIX}/data")
+ADD_DEFINITIONS(-DINSTALL_LOCALEDIR="${CMAKE_INSTALL_PREFIX}/locale")
+
 # For not installed debug builds with build directory path that not match sources directory path ${PROJECT_BINARY_DIR} != ${CMAKE_SOURCE_DIR}
 IF(CMAKE_BUILD_TYPE STREQUAL "Debug")
      ADD_DEFINITIONS(-DINSTALL_DATADIR_FOR_DEBUG="${CMAKE_SOURCE_DIR}")