docs: Add use of depfile to CMake instructions

aradi · Apr 8, 2024 · a4a0d94 · a4a0d94
1 parent 24bbeff
commit a4a0d94
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/docs/fypp.rst b/docs/fypp.rst
@@ -2109,11 +2109,15 @@ very first version of this example)::
       # Generate input file name
       set(infile "${CMAKE_CURRENT_SOURCE_DIR}/${infileName}")
 
+      # Create the dependency file
+      set(depfile "${CMAKE_CURRENT_BINARY_DIR/${outfileName}.d")
+
       # Custom command to do the processing
       add_custom_command(
           OUTPUT "${outfile}"
-          COMMAND fypp "${infile}" "${outfile}"
+          COMMAND fypp "${infile}" "${outfile}" --depfile "${depfile}"
           MAIN_DEPENDENCY "${infile}"
+          DEPFILE "${depfile}"
           VERBATIM)
 
       # Finally add output file to a list