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document new C++ and CMake requirements in manual

This commit is contained in:
Axel Kohlmeyer 2020-03-04 14:37:51 -05:00
parent ab51ae854e
commit 7bbf070757
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6
doc/src/Build_cmake.rst
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@ -95,10 +95,8 @@ this directory or sub-directories within it that CMake creates.
directory to un-install all packages. The purge removes all the \*.h
files auto-generated by make.
You must have CMake version 2.8 or later on your system to build
LAMMPS. A handful of LAMMPS packages (KOKKOS, LATTE, MSCG) require a
later version. CMake will print a message telling you if a later
version is required. Installation instructions for CMake are below.
You must have CMake version 3.10 or later on your system to build
LAMMPS. Installation instructions for CMake are below.
After the initial build, if you edit LAMMPS source files, or add your
own new files to the source directory, you can just re-type make from

10
doc/src/Build_settings.rst
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@ -23,11 +23,11 @@ explain how to do this for building both with CMake and make.
C++11 standard compliance
------------------------------------------
The LAMMPS developers plan to transition to make the C++11 standard the
minimum requirement for compiling LAMMPS. Currently this only applies to
some packages like KOKKOS while the rest aims to be compatible with the C++98
standard. Most currently used compilers are compatible with C++11; some need
to set extra flags to enable C++11 compliance. Example for GNU c++:
A C++11 standard compatible compiler is a requirement for compiling LAMMPS.
LAMMPS version 3 March 2020 is the last version compatible with the previous
C++98 standard for the core code and most packages. Most currently used
C++ compilers are compatible with C++11, but some older ones may need extra
flags to enable C++11 compliance. Example for GNU c++ 4.8.x:
.. code-block:: make