Hi, On 06.12.18 09:50, Andy wrote:
> If I call "cmake ." it write: "Warning:Debug"
> Debug is default and I must call "cmake . -DCMAKE_BUILD_TYPE=Release"
> for release?
That depends on the generator used. Some generators require the build
type at configuration time, some at build time. For example, the Visual
Studio generator should generate files containing both Debug and Release
configurations, and neither of your code blocks should be run.
Ideally, you should never do anything directly that depends on the build
type, but only prepare things. So rather than
if ("${CMAKE_BUILD_TYPE}" STREQUAL "Release")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O3")
endif()
you'd use
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3")
so generators that handle multiple build types at the same time can work.
Simon
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