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 nss snappy ccache cmake pkg-config
pip install cython
install FUSE if you want to build the FUSE support::
brew cask install osxfuse
apply the patch at https://gist.github.com/tchaikov/c3f324a7c36fc9774739cea319d5c49b , to address https://public.kitware.com/Bug/view.php?id=15943 . We cannot bump up the required cmake version yet, because RHEL/CentOS does not have the newer cmake yet.
then, under the source directory of Ceph::
mkdir build
cd build
PKG_CONFIG_PATH=/usr/local/Cellar/nss/3.33/lib/pkgconfig \
CC=/usr/local/opt/llvm/bin/clang \
CXX=/usr/local/opt/llvm/bin/clang++ \
cmake .. -DBOOST_J=4 \
-DENABLE_GIT_VERSION=OFF \
-DWITH_EMBEDDED=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
The paths to ``nss`` and ``snappy`` might vary if newer versions of the packages are installed.
Currently, the most practical uses for Ceph on MacOS might be FUSE and some other librados based applications.