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-rw-r--r--py/mkrules.cmake7
1 files changed, 7 insertions, 0 deletions
diff --git a/py/mkrules.cmake b/py/mkrules.cmake
index 261e15369..d0dc01962 100644
--- a/py/mkrules.cmake
+++ b/py/mkrules.cmake
@@ -178,3 +178,10 @@ if(MICROPY_FROZEN_MANIFEST)
VERBATIM
)
endif()
+
+# Update submodules
+if(ECHO_SUBMODULES)
+ # If cmake is run with GIT_SUBMODULES defined on command line, process the port / board
+ # settings then print the final GIT_SUBMODULES variable as a fatal error and exit.
+ message(FATAL_ERROR "GIT_SUBMODULES=${GIT_SUBMODULES}")
+endif()