Affected are older CMake versions 2.8.6 to 2.8.9 maybe even,
newer versions.

(cherry picked from commit 2d38fedf)
Signed-off-by: Carsten Gräser <graeser@dune-project.org>

on Ubuntu.

(cherry picked from commit 71e08e51)
Signed-off-by: Carsten Gräser <graeser@dune-project.org>

We do not really support this combination of C++11 features, and the
only time it should occur is when the user has a recent Intel Compiler
and an outdated GCC (which the Intel Compiler uses for the C++ standard
library). In that case, we emit a helpful error message at configuration
time.

(cherry picked from commit c3e637ab)
Signed-off-by: Steffen Müthing <muething@dune-project.org>

...unless specificially set to false by the user.

Needed to properly support pthreads.
The copied file is modified because of
- lacking support of INTERFACE in older CMake versions
- difficulties finding default FindPackageHandleStandardArgs

[Typetraits][Compatibility] Provide partial backwards compatibility for is_indexable on old GCC versions

Older GCC versions have some nasty bugs related to SFINAE and indexing
with operator[]. This patch adds a configuration check for those
problems and a partial backwards compatibility hack for those older
compilers that is sufficient for our current use case in the VTK
writer.

GCC 4.4, I'm looking at you

Since CMake 3.1 the if() command no longer automatically dereferences
variables named in quoted or bracket arguments.
This fixes FS#1567.

It caused that pthread.h was not found as clang does not like
to get -std=c++11 passed.

We simply get the flags from find_package(Thread).  If we are compiling
natively, we run a test program to check whether that worked.  Otherwise we
print a warning and assume that threading works.

Macro to use C++11 feature noexcept specifier.
Add test for CMake and autotools.

With GCC 4.4 or newer HAVE_INTEGRL_CONSTANT, HAVE_STD_HASH, and
HAVE_TYPE_TRAITS is always 1, no further testing necessary.
The test defines will be removed after the next Dune release.

As we have bumped our compiler requirements to GCC 4.4+, we can now
require the compiler to support C++11.

This patch updates both the autotools and the CMake tests to produce an
error if the compiler doesn't support either -std=c++11 or -std=c++0x.

It also renames the tests from ..0X to ..11 and renames the configure
options from --disable-gxx0xcheck to --disable-cxx11check and removes a
couple of redundant calls to the autotools macro.

Deprecate header and macro dune_static_assert.
Use static_assert instead.

They cased compiler warnings.

Avoid upper case commands.

They do not find a package but check for a feature.
This avoids false warnings about not found packages.
Merged FindCXX11Conditional.cmake and FindCXX11Features.cmake.

The test result was never used. The test slipped in as a copy from
the CMake code snippet from DuMuX.

r7472.

[[Imported from SVN: r7473]]

templates.

This way dune-common compiles as before if variadic templates _and_
move semantics are not present.

[[Imported from SVN: r7454]]

[[Imported from SVN: r7450]]

[[Imported from SVN: r7073]]

[[Imported from SVN: r6773]]

[[Imported from SVN: r6741]]

directly into the various CXX_FLAGS.
This prevents warnings.

[[Imported from SVN: r6651]]

[[Imported from SVN: r6640]]

Do not use cmakedefine01, as DUNE relies on the fact that there is no
define if a feature is not there.
Use a similar order for the defines in config.h.cmake for better
comparsin with e.g. meld.

[[Imported from SVN: r6594]]

[CMake] Added test for C++11 features.

[[Imported from SVN: r6578]]