Enforce searching for our gsettings schema files first where they were installed

This was not done when the installation prefix
was /usr or /usr/local which could potentially
cause gnucash to find other schema files first.

Author: gjanssens

gnucash/CMakeLists.txt

@@ -209,10 +209,9 @@ set(XDG_TEXT "
 # and gsettings schema are found.\n"
 )
 
-if (NOT(${CMAKE_INSTALL_FULL_DATADIR} STREQUAL "/usr/share") AND NOT(${CMAKE_INSTALL_FULL_DATADIR} STREQUAL "/usr/local/share"))
-  file(APPEND ${ENV_FILE_OUT} ${XDG_TEXT})
-  file(APPEND ${ENV_FILE_OUT} "XDG_DATA_DIRS={GNC_HOME}/share;{XDG_DATA_DIRS};" "${GNC_SYSTEM_XDG_DATA_DIRS}\n")
-endif()
+file(APPEND ${ENV_FILE_OUT} ${XDG_TEXT})
+file(APPEND ${ENV_FILE_OUT} "XDG_DATA_DIRS={GNC_HOME}/share;{XDG_DATA_DIRS};" "${GNC_SYSTEM_XDG_DATA_DIRS}\n")
+
 file(APPEND ${BUILD_ENV_FILE_OUT} ${XDG_TEXT})
 file(APPEND ${BUILD_ENV_FILE_OUT} "XDG_DATA_DIRS=${DATADIR_BUILD};{XDG_DATA_DIRS};" "${GNC_SYSTEM_XDG_DATA_DIRS}\n")