Add a check that a simple source file can compile as C++17 that uses
some of the features we need. Do this only when hosted by CMake 3.8
or above because those versions are aware of C++17.
Check for unordered_map as we do in bootstrap since commit 375eca7881
(bootstrap: Check support for unordered_map from compiler mode,
2017-11-30). Also maintain the existing C++14 cstdio check.
The check for C++14 and cstdio is a special case of the more general
problem of checking that the compiler's C++14 mode supports everything
we need. Rename the checks accordingly.
Do not obscure IWYU's report with warnings from its internal Clang.
We have other testing for such warnings. Also, when compiling with
a non-Clang compiler we might use warning options that IWYU's Clang
does not understand, and we don't want to see warnings about that.
Currently a change to the clang-tidy configuration remains unnoticed for
incremental builds in the way that it won't trigger a rebuild. This can be
considered a missing dependency that this patch fixes by introducing a
compile time definition (-DCLANG_TIDY_SHA1) that triggers a rebuild upon
change. Currently this only applies to the target CMakeLib.
Signed-off-by: Matthias Maennich <matthias@maennich.net>
CMake can now compile as C++11 on all supported platforms. Check that
std::unique_ptr is available and fail early if missing. This will allow
us to use C++11 more broadly in CMake's implementation (previously it
was restricted to the serve mode implementation).
Co-Author: Daniel Pfeifer <daniel@pfeifer-mail.de>
The libuv library provides many useful platform abstractions and better
process management than KWSys. We'd like to use it everywhere instead
of just in the server mode. Drop the `CMAKE_USE_LIBUV` option and use
libuv everywhere except during bootstrap.
CMake will soon require both C++11 and libuv to build. Neither of
these works on HP-UX, so unfortunately we need to drop support for
the platform until someone can get them working.
Issue: #17137
Teach Sphinx and our own install rules to skip a `Help/dev` directory.
This will give us a place to put developer-only documentation that
should not be included in the user-facing documentation. Add a
placeholder README.
Two issues need to be resolved to add Solaris 10
libuv support:
1. libuv needs to provide alternative functionality
for systems that do not support mkdtemp()
2. cmake should set SUNOS_NO_IFADDRS for Solaris 10
builds (but not Solaris 11)
Update `ustd.h` to include KWSys Large File Support configuration so
that consistent stream libraries are used (on AIX with XL).
Add a `cm_rhash.h` header to include the CMake-provided copy of the
`rhash.h` header from CMake sources.
The switch to use UTF-8 encoding has been defaulted to on for quite some
time since commit v3.2.0-rc1~116^2 (Encoding: Switch to use UTF-8
internally by default on Windows, 2014-12-26).
Use KWSys ConsoleBuf to replace the `streambuf` on `std::cout` and
`std::cerr` so that process output can be encoded correctly for display
in a Windows console.
Older versions of libuv did not have the uv_loop_close API. It first
showed up in unstable releases ~ v0.11.20 but was not available in
a stable release until v1.0
Add a `CMake_TEST_SERVER_MODE` option that can be set in testing builds
to enable/disable server mode tests explicitly. This will allow testing
in combination with `CMake_TEST_EXTERNAL_CMAKE` or for server mode to be
built on systems that have a python version that cannot run the test.
Provide a way for scripts building CMake to enable server mode
explicitly and assume the risk of a build failure if it is not
supported. This will allow such scripts to ensure that server
mode is available if the build succeeds. It also allows scripts
to explicitly disable server mode even if it would be supported.
Per-source copyright/license notice headers that spell out copyright holder
names and years are hard to maintain and often out-of-date or plain wrong.
Precise contributor information is already maintained automatically by the
version control tool. Ultimately it is the receiver of a file who is
responsible for determining its licensing status, and per-source notices are
merely a convenience. Therefore it is simpler and more accurate for
each source to have a generic notice of the license name and references to
more detailed information on copyright holders and full license terms.
Our `Copyright.txt` file now contains a list of Contributors whose names
appeared source-level copyright notices. It also references version control
history for more precise information. Therefore we no longer need to spell
out the list of Contributors in each source file notice.
Replace CMake per-source copyright/license notice headers with a short
description of the license and links to `Copyright.txt` and online information
available from "https://cmake.org/licensing". The online URL also handles
cases of modules being copied out of our source into other projects, so we
can drop our notices about replacing links with full license text.
Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority
of the replacements mechanically. Manually fix up shebang lines and trailing
newlines in a few files. Manually update the notices in a few files that the
script does not handle.
Adds a bare-bones cmake-server implementation and makes it possible
to start that with "cmake -E server".
Communication happens via stdin/stdout for now.
Protocol is based on Json objects surrounded by magic strings
("[== CMake Server ==[" and "]== CMake Server ==]"), which simplifies
Json parsing significantly.
This patch also defines an interface used to implement different
versions of the protocol spoken by the server, but does not include
any protocol implementaiton.
Take logic from upstream `Makefile.am` and `configure.ac` to build libuv
sources.
Update `uv.h` to include KWSys Large File Support configuration so that
consistent stream libraries are used (on AIX with XL).
Add a `cm_uv.h` header to include the CMake-provided copy of the `uv.h`
header from CMake sources.
By default is OFF and marked as advanced.
It's also add custom cmake-developer-reference (ALL) target
Generated output will be installed to ${CMAKE_DOC_DIR}/developer-reference.
Turn the feature check for cxx11_unordered_map into a function such that
we can use it for other features as well. Drop the 11 suffix, as we may
want to check features from other standards.
Download http://www.gnu.org/licenses/lgpl.txt and place it as
Licenses/LGPLv3.txt in our source tree. When building cmake-gui, use
option CMake_GUI_DISTRIBUTE_WITH_Qt_LGPL to enable notification in the
"About" dialog of how the distribution of Qt is licensed. Install the
license file as ${CMAKE_ROOT}/Licenses/LGPLv3.txt so that the dialog can
display a path to it.
Since https is almost ubiquitous nowadays we should support it by
default whenever possible. When building our own curl, we already
automatically enable SSL/TLS support on Windows and OS X by using the
OS-native APIs. On UNIX platforms we need to use OpenSSL but have not
done so by default before, leading to possible user confusion when https
transfers fail later. Fix this by searching for OpenSSL quietly and
enabling use of it automatically if it is found.
Do this only on Linux and FreeBSD for now because on other UNIX
platforms (e.g. AIX, HP-UX, SunOS) it seems too easy to find an
OpenSSL that is not compatible with the target compiler.
