make sure qwt lib path updated

Author: kyngchaos

mac/cmake/1qt.cmake.in

@@ -97,10 +97,10 @@ MESSAGE (STATUS "Copying Qwt and updating library paths...")
 IF (NOT EXISTS "${QLIBDIR}/libqwt.dylib")
     EXECUTE_PROCESS (COMMAND ditto ${QARCHS} "@QWT_LIBRARY@" "${QLIBDIR}/libqwt.dylib")
 ENDIF ()
-GET_INSTALL_NAME ("@QWT_LIBRARY@" "libqwt" QLIB)
-IF (QLIB)
-    INSTALLNAMETOOL_CHANGE ("${QLIB}" "${ATEXECUTABLE}/@QGIS_LIB_SUBDIR@/libqwt.dylib" "${QAPPDIR}/@QGIS_APP_NAME@")
-ENDIF (QLIB)
+GET_INSTALL_NAME ("@QWT_LIBRARY@" "libqwt" QWT_CHG)
+IF (QWT_CHG)
+    INSTALLNAMETOOL_CHANGE ("${QWT_CHG}" "${ATEXECUTABLE}/@QGIS_LIB_SUBDIR@/libqwt.dylib" "${QAPPDIR}/@QGIS_APP_NAME@")
+ENDIF (QWT_CHG)
 
 # PyQt
 
@@ -153,9 +153,9 @@ FOREACH (PQWPY ${PQWPYLIST})
     EXECUTE_PROCESS (COMMAND cp -fp "${PQWPY}" "${QGISPYDIR}/PyQt${QT_FWVER}/Qwt5/")
 ENDFOREACH (PQWPY)
 IF (QWT_CHG)
-    IF (@OSX_HAVE_LOADERPATH@ AND QWT_CHG)
+    IF (@OSX_HAVE_LOADERPATH@)
         SET (QWT_CHG_TO "${ATLOADER}/../../../@QGIS_DATA_SUBDIR_REV@/@QGIS_LIB_SUBDIR@/libqwt.dylib")
-    ENDIF (@OSX_HAVE_LOADERPATH@ AND QWT_CHG)
+    ENDIF (@OSX_HAVE_LOADERPATH@)
     FOREACH (PW _iqt;Qwt)
         INSTALLNAMETOOL_CHANGE (${QWT_CHG} ${QWT_CHG_TO} "${QGISPYDIR}/PyQt${QT_FWVER}/Qwt5/${PW}.so")
     ENDFOREACH (PW)