[cmake] fix deprecated OLD policy for CMP0053

https://cmake.org/cmake/help/v3.1/policy/CMP0053.html

Author: 3nids

CMakeLists.txt

@@ -1,11 +1,20 @@
+#############################################################
+# CMake settings
+CMAKE_MINIMUM_REQUIRED(VERSION 3.1.0)
+SET(CMAKE_COLOR_MAKEFILE ON)
+# set path to additional CMake modules
+SET(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake ${CMAKE_MODULE_PATH})
+# POLICIES
+CMAKE_POLICY (SET CMP0048 NEW)
+CMAKE_POLICY (SET CMP0053 NEW)
+
+#############################################################
+# Project and version
 SET(CPACK_PACKAGE_VERSION_MAJOR "3")
 SET(CPACK_PACKAGE_VERSION_MINOR "1")
 SET(CPACK_PACKAGE_VERSION_PATCH "0")
 SET(COMPLETE_VERSION ${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH})
 SET(RELEASE_NAME "Master")
-IF (POLICY CMP0048)
-  CMAKE_POLICY (SET CMP0048 NEW)
-ENDIF (POLICY CMP0048)
 PROJECT(qgis VERSION ${COMPLETE_VERSION})
 IF (APPLE)
   SET(QGIS_APP_NAME "QGIS")
@@ -17,16 +26,8 @@ ENDIF (APPLE)
 MATH(EXPR QGIS_VERSION_INT "${CPACK_PACKAGE_VERSION_MAJOR}*10000+${CPACK_PACKAGE_VERSION_MINOR}*100+${CPACK_PACKAGE_VERSION_PATCH}")
 MESSAGE(STATUS "QGIS version: ${COMPLETE_VERSION} ${RELEASE_NAME} (${QGIS_VERSION_INT})")
 
-#############################################################
-# CMake settings
-
-CMAKE_MINIMUM_REQUIRED(VERSION 3.0.0)
-
-SET(CMAKE_COLOR_MAKEFILE ON)
-
-# set path to additional CMake modules
-SET(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake ${CMAKE_MODULE_PATH})
 
+#############################################################
 # Configure CCache if available
 option(USE_CCACHE "Use ccache" ON)
 if (USE_CCACHE)

cmake/FindGDAL.cmake

@@ -13,10 +13,7 @@
 #
 # GDAL_INCLUDE_DIR      = where to find headers 
 
-IF (POLICY CMP0053) # in CMake 3.1.0+
-  CMAKE_POLICY (SET CMP0053 OLD) # keep old-style @VAR@ expansion
-ENDIF (POLICY CMP0053)
-INCLUDE (@CMAKE_SOURCE_DIR@/cmake/MacPlistMacros.cmake)
+INCLUDE (${CMAKE_SOURCE_DIR}/cmake/MacPlistMacros.cmake)
 
 IF(WIN32)
 

cmake/FindGEOS.cmake

@@ -13,10 +13,7 @@
 #    GEOS_LIBRARY
 #
 
-IF (POLICY CMP0053) # in CMake 3.1.0+
-  CMAKE_POLICY (SET CMP0053 OLD) # keep old-style @VAR@ expansion
-ENDIF (POLICY CMP0053)
-INCLUDE (@CMAKE_SOURCE_DIR@/cmake/MacPlistMacros.cmake)
+INCLUDE (${CMAKE_SOURCE_DIR}/cmake/MacPlistMacros.cmake)
 
 IF(WIN32)