Hi all,
I am trying to set the CMAKE_CXX_FLAGS or CMAKE_CXX_FLAGS_INIT variable,
such that it contains flags to turn off specific warnings for the Visual
Studio compiler. I definitely want to set these additional flags from
within a CMakeFile, specifying them on the command line or interactively
is not an option.
I have included a Windows-specific file by using
INCLUDE (${CMAKE_SYSTEM_NAME}.cmake)
The file Windows.cmake contains the line
SET (ENV{CXXFLAGS} "/wd4251")
However this only works after the PROJECT line within the CMakeFile,
because before it CMAKE_SYSTEM_NAME seems to be unset. On the other
hand, when writing the include statement after the project command, the
CMAKE_CXX_FLAGS seem already to be set. If possible I would like to
specify those flags as initial values, avoiding to use the force option
of the set command.
What is the recommended way to add platform-specific compiler flags from
within CMakeFiles?
Any help would be appreciated.
Martin
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