since we dropped the support of xenial, we now have the luxury of using
newer CMake! and by using CMake 3.10.2, we can prevent libfmt from
assuming that we are using C++11, and hence set `CMAKE_CXX_STANDARD` to
11, which will literally append `-std=gnu++11` to `CMAKE_CXX_FLAGS`.
the last `-std` option passed to `g++` takes precendence.
since we've switched over to C++17, and we are using C++17 features.
so, using cmake older than 3.8 breaks the build. because it is CMake 3.8
which stared support `CMAKE_CXX_STANDARD` 17.
- for bionic: https://packages.ubuntu.com/bionic/cmake : 3.10.2
- for CentOS7:
https://dl.fedoraproject.org/pub/epel/7/x86_64/Packages/c/ : 3.13.5
so in this change,
* bump up the required version to v3.10.2
* cleanups to wipe out the workaround for lower CMake versions
* use `PROJECT_VERSION` defined by `project()` command instead of
`VERSION` explicitly defined.
Signed-off-by: Kefu Chai <kchai@redhat.com>
* refs/pull/22446/head:
relicense LGPL-2.1 code as LGPL-2.1 or LGPL-3.0
COPYING: add reference to a few Apache-2.0 licensed source files
debian/copyright: sync with COPYING
COPYING: LGPL2.1 -> LGPL-2.1
COPYING: extra bits from debian/copyright
Reviewed-by: Jason Dillaman <dillaman@redhat.com>
Reviewed-by: Neha Ojha <nojha@redhat.com>
Reviewed-by: Sebastian Wagner <swagner@suse.com>
The primary motivation to relicense is a desire to integrate with projects
that are licensed under the Apache License version 2.0. Although opinions
vary, there are some who argue the the LGPL-2.1 and Apache-2.0 licenses
are not fully compatible. We would like to avoid the ambiguity and
potential for controversy.
Projects we would like to consume that are Apache-2.0 licensed include
Seastar, OpenSSL (which is in the process of relicensing to Apache-2.0),
and Swagger (swagger.io). Note that some of these are dynamically linked
or consumed via a high-level language and may or may not require a change
to LGPL-3.0, but providing the option for LGPL-3.0 certainly avoids any
uncertainty.
A few other source files are already incorporated into Ceph that claim an
Apache-2.0 license:
src/common/deleter.h
src/common/sstring.h
src/include/cpp-btree
The Ceph developers would further like to provide a license option that is
more modern than the current LGPL-2.1. LGPL-3.0 includes updated,
clarified language around several issues and is widely considered
more modern, superior license.
Signed-off-by: Sage Weil <sage@redhat.com>
memory.h was introduced back when the shared_ptrs were still in TR1, but
we've moved to C++17 now. and the C++ clients should be compiled with
a C++11 compatible compiler. so there is no need to have this file anymore.
also replace all references of ceph::shared_ptr and ceph::weak_ptr with
std::shared_ptr and std::weak_ptr accordingly.
Signed-off-by: Kefu Chai <kchai@redhat.com>
This script is pointless. It is equivalent to the built-in default
behavior, which makes it only useful as a sample for what a location
hook's output should be. The documentation has been updated to provide
that.
Signed-off-by: Sage Weil <sage@redhat.com>
