py/usermod.cmake: Check target exists in usermod_gather_sources.

Check a target exists before accessing properties. Otherwise usermod_gather_sources would recurse into garbage property names and break. Signed-off-by: Phil Howard <[email protected]>
picoscratch · Oct 15, 2024 · 525fce7 · 525fce7
1 parent fa942d5
commit 525fce7
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/py/usermod.cmake b/py/usermod.cmake
@@ -5,6 +5,10 @@ function(usermod_gather_sources SOURCES_VARNAME INCLUDE_DIRECTORIES_VARNAME INCL
     if (NOT ${LIB} IN_LIST ${INCLUDED_VARNAME})
         list(APPEND ${INCLUDED_VARNAME} ${LIB})
 
+        if (NOT TARGET ${LIB})
+            return()
+        endif()
+
         # Gather library sources
         get_target_property(lib_sources ${LIB} INTERFACE_SOURCES)
         if (lib_sources)