Improve CMake package config and find_package scripts.

src/CMakeLists.txt

@@ -47,7 +47,7 @@ if(HAVE_DLOPEN)
 	list(APPEND LINK_LIBS dl)
 endif()
 
-if (ENABLE_ADVANCED_IM)
+if(ENABLE_ADVANCED_IM)
 	list(APPEND LINK_LIBS ${XercesC_TARGET})
 	if (APPLE AND NOT IOS)
 		list(APPEND APPLE_LIBS "-framework CoreServices")

tester/CMakeLists.txt

@@ -53,6 +53,9 @@ endif()
 if(TurboJpeg_FOUND)
 	list(APPEND OTHER_LIBS_FOR_TESTER ${TurboJpeg_TARGET})
 endif()
+if(XercesC_FOUND)
+	list(APPEND OTHER_LIBS_FOR_TESTER ${XercesC_TARGET})
+endif()
 
 if(ENABLE_CXX_WRAPPER)
 	list(APPEND OTHER_LIBS_FOR_TESTER liblinphone++)