[CMake] Abort configuration when required uic/rcc is not found

cMake/FindPySide2Tools.cmake

@@ -44,6 +44,9 @@ ELSE()
 ENDIF(Qt5Core_VERSION VERSION_LESS 5.14)
 
 MACRO(PYSIDE_WRAP_UI outfiles)
+  if (NOT PYSIDE2UICBINARY)
+    message(FATAL_ERROR "Qt uic is required for generating ${ARGN}")
+  endif()
   FOREACH(it ${ARGN})
     GET_FILENAME_COMPONENT(outfile ${it} NAME_WE)
     GET_FILENAME_COMPONENT(infile ${it} ABSOLUTE)
@@ -71,6 +74,9 @@ MACRO(PYSIDE_WRAP_UI outfiles)
 ENDMACRO (PYSIDE_WRAP_UI)
 
 MACRO(PYSIDE_WRAP_RC outfiles)
+  if (NOT PYSIDE2RCCBINARY)
+    message(FATAL_ERROR "Qt rcc is required for generating ${ARGN}")
+  endif()
   FOREACH(it ${ARGN})
     GET_FILENAME_COMPONENT(outfile ${it} NAME_WE)
     GET_FILENAME_COMPONENT(infile ${it} ABSOLUTE)