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cmake: fix the creation dummy main to avoid rebuilding

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This commit is contained in:
Anton Maklakov 2018-11-14 19:45:14 +08:00
parent fe5b2c56a4
commit 8e1c91ac7d
1 changed files with 4 additions and 1 deletions
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5
tools/cmake/idf_functions.cmake
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@ -188,7 +188,10 @@ function(idf_add_executable)
# Create a dummy file to work around CMake requirement of having a source
# file while adding an executable
add_executable(${exe_target} "${CMAKE_CURRENT_BINARY_DIR}/dummy_main_src.c")
file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/dummy_main_src.c)
add_custom_command(OUTPUT dummy_main_src.c
COMMAND ${CMAKE_COMMAND} -E touch dummy_main_src.c
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
VERBATIM)
add_custom_target(dummy_main_src DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/dummy_main_src.c)