I am using CMake for my project and I am relying on a number of different third-party libraries, who themselves use CMake.
Many of them provide Options in their main CMake such as -
option(GLM_QUIET "No CMake Message" OFF)
option(BUILD_SHARED_LIBS "Build shared library" ON)
option(BUILD_STATIC_LIBS "Build static library" ON)
option(GLM_TEST_ENABLE_CXX_98 "Enable C++ 98" OFF)
option ( ASSIMP_BUILD_ASSIMP_TOOLS
"If the supplementary tools for Assimp are built in addition to the library."
ON
)
option ( ASSIMP_BUILD_SAMPLES
"If the official samples are built as well (needs Glut)."
OFF
)
I want to set some of these options to be different than their original values when I include them by default.
I tried setting them like this before including the main CMakes -
SET( ASSIMP_BUILD_ASSIMP_TOOLS OFF )
But then I get this error from CMake:
CMake Warning (dev) at Thirdparty/glm/CMakeLists.txt:14 (option):
Policy CMP0077 is not set: option() honors normal variables. Run "cmake
--help-policy CMP0077" for policy details. Use the cmake_policy command to
set the policy and suppress this warning.
For compatibility with older versions of CMake, option is clearing the
normal variable 'ASSIMP_BUILD_ASSIMP_TOOLS '.
This warning is for project developers. Use -Wno-dev to suppress it.
If I try to do this -
OPTION( ASSIMP_BUILD_ASSIMP_TOOLS OFF )
It just quietly ignores it.
What is the correct way to deal with this?
