cmake: modules: dts: Fix board revision 0 overlay
Fixes an issue whereby a board revision is 0 and the overlay file
exists but would not be included
Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>
diff --git a/cmake/modules/dts.cmake b/cmake/modules/dts.cmake
index c9ac751..23659c1 100644
--- a/cmake/modules/dts.cmake
+++ b/cmake/modules/dts.cmake
@@ -125,7 +125,7 @@
set_ifndef(DTS_SOURCE ${BOARD_DIR}/${BOARD}.dts)
if(EXISTS ${DTS_SOURCE})
# We found a devicetree. Check for a board revision overlay.
- if(BOARD_REVISION AND EXISTS ${BOARD_DIR}/${BOARD}_${BOARD_REVISION_STRING}.overlay)
+ if(DEFINED BOARD_REVISION AND EXISTS ${BOARD_DIR}/${BOARD}_${BOARD_REVISION_STRING}.overlay)
list(APPEND DTS_SOURCE ${BOARD_DIR}/${BOARD}_${BOARD_REVISION_STRING}.overlay)
endif()
else()
