I can't figure out how to get CMake to build my code with setting -D_UNICODE
and -DUNICODE. I don't want those manifest constants set, but they appear in
the generated DependInfo.cmake files when generating code for NMake Makefiles:
SET(CMAKE_CXX_COMPILER_ID "MSVC")
# Preprocessor definitions for this target.
SET(CMAKE_TARGET_DEFINITIONS
"NT"
"_UNICODE"
"UNICODE"
"_CRT_SECURE_NO_WARNINGS"
"_SCL_SECURE_NO_WARNINGS"
"NOMINMAX"
"NT"
"WIN32_LEAN_AND_MEAN"
)
The definitions following those for Unicode are from this command in my
CMakeLists.txt:
add_definitions(
/D_CRT_SECURE_NO_WARNINGS
/D_SCL_SECURE_NO_WARNINGS
/DNOMINMAX
/DNT
/DWIN32_LEAN_AND_MEAN)
I've tried every which way I can think of to remove those definitions, but
nothing has worked:
- get_target_property() finds nothing for COMPILE_DEFINITIONS or DEFINITIONS.
- add_definitions(/U_UNICODE /UUNICODE) doesn't work because those precede the
-D_UNICODE -DUNICODE arguments generated by the above. (CMake "helpfully" sorts
the flags, it seems. That's a bug, if you ask me. Order dependent flags, at
least, should appear in the order the user gives them.)
- set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /U_UNICODE /UUNICODE") doesn't work.
(I could probably force an update to the cache, but then that would apply
globally and not to the current project.
How can I convince CMake to remove those definitions from my builds?
_____
Rob Stewart
Software Engineer
Dev Tools & Components
Susquehanna International Group, LLP
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