ceph/doc/dev/macos.rst

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build on MacOS
==============
Since we've switched to C++ 17, and the default clang shipped with Xcode 9 does not support all the C++ 17 language features, it's suggested to install clang using brew::
brew install --with-toolchain llvm
and install all the necessary bits::
brew install snappy ccache cmake pkg-config
pip install cython
install FUSE if you want to build the FUSE support::
brew cask install osxfuse
then, under the source directory of Ceph::
mkdir build
cd build
cmake .. -DBOOST_J=4 \
-DCMAKE_C_COMPILER=/usr/local/opt/llvm/bin/clang \
-DCMAKE_CXX_COMPILER=/usr/local/opt/llvm/bin/clang++ \
-DCMAKE_EXE_LINKER_FLAGS="-L/usr/local/opt/llvm/lib" \
-DENABLE_GIT_VERSION=OFF \
-DWITH_MANPAGE=OFF \
-DWITH_LIBCEPHFS=OFF \
-DWITH_XFS=OFF \
-DWITH_KRBD=OFF \
-DWITH_LTTNG=OFF \
-DWITH_BABELTRACE=OFF \
-DWITH_BLUESTORE=OFF \
-DWITH_RADOSGW=OFF \
-DWITH_SPDK=OFF \
-DSNAPPY_ROOT_DIR=/usr/local/Cellar/snappy/1.1.7_1
The paths to ``nss`` and ``snappy`` might vary if newer versions of the packages are installed.
Also, please consider using boost v1.69 to address the bug of https://github.com/boostorg/atomic/issues/15.
Currently, the most practical uses for Ceph on MacOS might be FUSE and some other librados based applications.