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Add variable to use existing IrrlichtMt build (#11656)
Co-authored-by: SmallJoker <SmallJoker@users.noreply.github.com>
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@ -52,7 +52,6 @@ set(BUILD_CLIENT TRUE CACHE BOOL "Build client")
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set(BUILD_SERVER FALSE CACHE BOOL "Build server")
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set(BUILD_UNITTESTS TRUE CACHE BOOL "Build unittests")
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set(WARN_ALL TRUE CACHE BOOL "Enable -Wall for Release build")
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if(NOT CMAKE_BUILD_TYPE)
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@ -64,8 +63,21 @@ endif()
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set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/Modules/")
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set(IRRLICHTMT_BUILD_DIR "" CACHE PATH "Path to IrrlichtMt build directory.")
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if(NOT "${IRRLICHTMT_BUILD_DIR}" STREQUAL "")
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find_package(IrrlichtMt QUIET
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PATHS "${IRRLICHTMT_BUILD_DIR}"
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NO_DEFAULT_PATH
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)
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if(NOT TARGET IrrlichtMt::IrrlichtMt)
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# find_package() searches certain subdirectories. ${PATH}/cmake is not
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# the only one, but it is the one where IrrlichtMt is supposed to export
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# IrrlichtMtConfig.cmake
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message(FATAL_ERROR "Could not find IrrlichtMtConfig.cmake in ${IRRLICHTMT_BUILD_DIR}/cmake.")
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endif()
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# This is done here so that relative search paths are more reasonable
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if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/lib/irrlichtmt")
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elseif(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/lib/irrlichtmt")
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message(STATUS "Using user-provided IrrlichtMt at subdirectory 'lib/irrlichtmt'")
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if(BUILD_CLIENT)
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# tell IrrlichtMt to create a static library
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@ -101,11 +113,13 @@ else()
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# Note that we can't use target_include_directories() since that doesn't work for IMPORTED targets before CMake 3.11
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set_target_properties(IrrlichtMt::IrrlichtMt PROPERTIES
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INTERFACE_INCLUDE_DIRECTORIES "${IRRLICHT_INCLUDE_DIR}")
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else()
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message(STATUS "Found IrrlichtMt ${IrrlichtMt_VERSION}")
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endif()
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endif()
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if(TARGET IrrlichtMt::IrrlichtMt)
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message(STATUS "Found IrrlichtMt ${IrrlichtMt_VERSION}")
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endif()
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# Installation
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11
README.md
11
README.md
@ -224,10 +224,13 @@ Run it:
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- Debug build is slower, but gives much more useful output in a debugger.
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- If you build a bare server you don't need to have the Irrlicht or IrrlichtMt library installed.
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- In that case use `-DIRRLICHT_INCLUDE_DIR=/some/where/irrlicht/include`.
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- IrrlichtMt can also be installed somewhere that is not a standard install path.
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- In that case use `-DCMAKE_PREFIX_PATH=/path/to/install_prefix`
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- The path must be set so that `$(CMAKE_PREFIX_PATH)/lib/cmake/IrrlichtMt` exists
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or that `$(CMAKE_PREFIX_PATH)` is the path of an IrrlichtMt build folder.
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- Minetest will use the IrrlichtMt package that is found first, given by the following order:
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1. Specified `IRRLICHTMT_BUILD_DIR` CMake variable
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2. `${PROJECT_SOURCE_DIR}/lib/irrlichtmt` (if existent)
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3. Installation of IrrlichtMt in the system-specific library paths
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4. For server builds with disabled `BUILD_CLIENT` variable, the headers from `IRRLICHT_INCLUDE_DIR` will be used.
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- NOTE: Changing the IrrlichtMt build directory (includes system installs) requires regenerating the CMake cache (`rm CMakeCache.txt`)
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### CMake options
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