I'm using "MinGW Makefiles" as a generator...
When I change a cmakelists.txt file, a bunch of sources I specify to copy
from /.../.c to ${CMAKE_BINARY_DIR}/.../.cpp get deleted in binary by cmake.
There are no rules in the makefiles for those files to depend on anything
other than the original .c file, so I was really confused why they kept
getting regenerated... I started to pay attention and found that cmake,
during configure, if a cmakeLists.txt changes goes through and deletes all
those files.
add_custom_command( OUTPUT ${CMAKE_BINARY_DIR}/${BASENAME}${FILEEXT}
DEPENDS ${SOURCE}
COMMAND ${CMAKE_COMMAND} -E copy_if_different
${SOURCE} ${CMAKE_BINARY_DIR}/${BASENAME}${FILEEXT}
)
all outputs get deleted?
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