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100 lines
2.6 KiB
Plaintext
100 lines
2.6 KiB
Plaintext
# How to build from source
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## Requirements
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### Common requirements
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In order to build libssh, you need to install several components:
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- A C compiler
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- [CMake](http://www.cmake.org) >= 2.6.0.
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- [openssl](http://www.openssl.org) >= 0.9.8
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or
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- [gcrypt](http://www.gnu.org/directory/Security/libgcrypt.html) >= 1.4
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optional:
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- [libz](http://www.zlib.net) >= 1.2
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Note that these version numbers are version we know works correctly. If you
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build and run libssh successfully with an older version, please let us know.
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Windows binaries known to be working:
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- http://www.slproweb.com/products/Win32OpenSSL.html
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- http://www.winimage.com/zLibDll/index.html
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We installed them in C:\Program Files
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## Building
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First, you need to configure the compilation, using CMake. Go inside the
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`build` dir. Create it if it doesn't exist.
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GNU/Linux, MacOS X, MSYS/MinGW:
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cmake -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Debug ..
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make
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On Windows you should choose a makefile gernerator with -G.
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### CMake standard options
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Here is a list of the most interesting options provided out of the box by
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CMake.
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- CMAKE_BUILD_TYPE: The type of build (can be Debug Release MinSizeRel
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RelWithDebInfo)
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- CMAKE_INSTALL_PREFIX: The prefix to use when running make install (Default
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to /usr/local on GNU/Linux and MacOS X)
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- CMAKE_C_COMPILER: The path to the C compiler
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- CMAKE_CXX_COMPILER: The path to the C++ compiler
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### CMake options defined for libssh
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Options are defined in the following files:
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- DefineOptions.cmake
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They can be changed with the -D option:
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`cmake -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Debug -DWITH_ZLIB=OFF ..`
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### Browsing/editing CMake options
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In addition to passing options on the command line, you can browse and edit
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CMake options using `cmakesetup` (Windows), `cmake-gui` or `ccmake` (GNU/Linux
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and MacOS X).
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- Go to the build dir
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- On Windows: run `cmakesetup`
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- On GNU/Linux and MacOS X: run `ccmake ..`
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### Useful Windows options:
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If you have installed OpenSSL or ZLIB in non standard directories, maybe you
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want to set:
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OPENSSL_ROOT_DIR
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and
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ZLIB_ROOT_DIR
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## Installing
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If you want to install libssh after compilation run:
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make install
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## Running
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The libssh binary can be found in the `build/libssh` directory.
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You can use `build/examples/samplessh` which is a sample client to
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test libssh on UNIX.
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## About this document
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This document is written using [Markdown][] syntax, making it possible to
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provide usable information in both plain text and HTML format. Whenever
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modifying this document please use [Markdown][] syntax.
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[markdown]: http://www.daringfireball.net/projects/markdown
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