I am using set_property to add extra compile flags to source files that are
built using a precompiled header, but whenever a source file is added or
removed it causes every file in the executable to be rebuilt. I have come up
with a CMakeList that shows the issue.
#####
cmake_minimum_required(VERSION 2.6)
project(prop_test)
set(sources foo.cpp bar.cpp main.cpp)
add_executable(prop_test ${sources})
set_property(SOURCE foo.cpp main.cpp APPEND PROPERTY COMPILE_FLAGS -Wall)
#####
If you compile the project using a Makefile generator, then remove foo.cpp from
the sources variable and recompile, it will also recompile main.cpp and
bar.cpp even though no compile flags have changed. If you then put foo.cpp
back and build it will again rebuild main.cpp and bar.cpp. It seems that you
will need to rebuild every source file that is used in the executable, even
though nothing has changed.
Is there a way around doing all this rebuilding?
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