build: pass along the make program

Ensure that any sub-build uses the same make program as the main
application. This is important for the cases where the make program is
not in the default search path and we trigger a sub-build.

Author: compnerd

CMakeLists.txt

@@ -114,6 +114,7 @@ else()
     BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/RegsGen2
     CMAKE_ARGS
       -DCMAKE_BUILD_TYPE:STRING=Release
+      -DCMAKE_MAKE_PROGRAM:STRING=${CMAKE_MAKE_PROGRAM}
       -DCMAKE_SYSTEM_NAME:STRING=${CMAKE_HOST_SYSTEM_NAME}
       -DCMAKE_SYSTEM_PROCESSOR:STRING=${CMAKE_HOST_SYSTEM_PROCESSOR}
     BUILD_COMMAND ${CMAKE_COMMAND} --build <BINARY_DIR> --config Release