mirror of
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644 lines
28 KiB
Plaintext
644 lines
28 KiB
Plaintext
Getting Started With The POCO C++ Libraries
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AAAIntroduction
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!!!Welcome
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Thank you for downloading the POCO C++ Libraries and welcome to the growing community of POCO C++ Libraries
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users. This document will help you in getting a smooth ride while installing and setting up the
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POCO C++ Libraries and going the first steps with the software.
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!!!Setting Up The POCO C++ Libraries
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The POCO C++ Libraries are delivered in full source code only. Due to the
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large number of possible build configurations, no binary releases are provided
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from the project maintainers.
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This means that you have to build the libraries and tools before you can use them the first time.
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<*Note: There are binary releases available as installation packages for
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various operating systems (e.g., Debian Linux, Ubuntu Linux, OpenBSD,
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OpenWRT, etc.). However, these packages are not maintained by the core
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team and may not always be up to date.*>
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Up-to-date [[https://conan.io Conan]] packages are available via
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[[https://bintray.com/pocoproject/conan/Poco%3Apocoproject Bintray]].
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<%
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<?-PocoDoc.adContent?>
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%>
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!!Source Code Distribution Format
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The source code for the POCO C++ Libraries is delivered in a ZIP file
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for Windows users and/or in a compressed TAR file (.tar.gz or .tar.bz2)
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for Unix/Linux users. Both archives contain the same files, the only
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difference is that all text files in the ZIP files have line endings
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suitable for Windows (CR-LF), while the text files in the TAR file have
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line endings suitable for Unix/Linux (LF only).
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All libraries and tools follow a common convention for the directory
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layout. This directory layout is shown below.
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build/ the build system for Unix and additional utility scripts
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config/ build configurations for various Unix platforms
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rules/ common build rules for all platforms
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scripts/ build and utility scripts
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vxconfig/ VxWorks build configurations
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cmake/ Support files for CMake
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bin/ all executables (dynamic link libraries on Windows)
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bin64/ all 64-bit executables (and DLLs)
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doc/ additional documentation
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lib/ all libraries (import libraries on Windows)
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lib64/ all 64-bit libraries
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CppUnit/ project and make/build files for the CppUnit unit testing framework
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doc/ additional documentation
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include/
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CppUnit/ header files for CppUnit
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src/ source files for CppUnit
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WinTestRunner/ Windows GUI for CppUnit
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Foundation/ project and make/build files for the Foundation library
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include/
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Poco/ header files for the Foundation library
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src/ source files for the Foundation library
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testsuite/ project and make/build files for the Foundation testsuite
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src/ source files for the Foundation testsuite
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bin/ test suite executables
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samples/ sample applications for the Foundation library
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XML/ project and make/build files for the XML library
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include/
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Poco/
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XML/ header files for the core XML library
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SAX/ header files for SAX support
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DOM/ header files for DOM support
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src/ source files for the XML library
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testsuite/ project and make/build files for the XML testsuite
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src/ source files for the XML testsuite
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bin/ test suite executables
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samples/ sample applications for the XML library
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Net/ project and make/build files for the Net library
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include/
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Poco/
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Net/ header files for the Net library
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src/ source files for the Net library
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testsuite/ project and make/build files for the Net testsuite
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src/ source files for the Net testsuite
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bin/ test suite executables
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samples/ sample applications for the Net library
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----
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Depending on what package you have downloaded (Basic or Complete
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Edition), there may be other libraries as well (such as Data, Crypto,
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NetSSL_OpenSSL and Zip).
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!!External Dependencies
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The following libraries require third-party software (header files and
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libraries) being installed to build properly:
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- NetSSL_OpenSSL and Crypt require OpenSSL.
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- Data/ODBC requires ODBC
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(Microsoft ODBC on Windows, unixODBC or iODBC on Unix/Linux)
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- Data/MySQL requires the MySQL client.
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!OpenSSL
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<*Unix/Linux*>
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Most Unix/Linux systems already have OpenSSL
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preinstalled, or OpenSSL can be easily installed using the system’s
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package management facility. For example, on Ubuntu (or other
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Debian-based Linux distributions) you can type
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$ sudo apt-get install openssl libssl-dev
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----
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to install the necessary packages.
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If your system does not have OpenSSL, please get it from
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http://www.openssl.org/ or another source. You do not have to build
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OpenSSL yourself -- a binary distribution is fine.
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On macOS, it's recommended to install OpenSSL via Homebrew.
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$ brew install openssl
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----
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<*Windows*>
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On Windows, there are three options:
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- Use POCO pre-built OpenSSL binaries (simplest and recommended)
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- Build OpenSSL using scripts from POCO distribution package
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- Use a third-party pre-built OpenSSL
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<*POCO pre-built OpenSSL binaries*>
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OpenSSL binaries (version 1.1.0) built with Visual Studio 2013 are available for
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[[https://github.com/pocoproject/openssl/tree/master/build download]].
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In case you are using pre-built binaries, please make sure to copy the
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entire directory to <*C:\%POCO_BASE%\openssl\*>.
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Or, %POCO_BASE%\openssl directory can be deleted (if existing) and POCO openssl
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github repository cloned into it:
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$ cd %POCO_BASE%
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$ rmdir /s /q openssl
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$ git clone https://github.com/pocoproject/openssl
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All libraries are located in their proper folders (eg. <*win64/bin/debug/*>),
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and all are named accordingly (<*libcrypto[mt[d]]*> and <*libssl[mt[d]]*>).
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<*Build OpenSSL using scripts from POCO distribution package*>
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Alternatively, if you choose to build your own OpenSSL, POCO C++ Libraries
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distribution package comes with scripts to build OpenSSL on Windows operating
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system. This requires Windows PowerShell.
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Usage:
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C:\%POCO_BASE%\openssl\build.ps1 [-openssl_release 1.0.0 | 1.1.0]
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[-vs_version 150 | 140 | 120 | 110 | 100 | 90]
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[-config release | debug | both]
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[-platform Win32 | x64]
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[-library shared | static]
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----
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Example: Building OpenSSL 1.1.0, DLL release build for x64 with Visual Studio 2015:
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C:\%POCO_BASE%\openssl\build.ps1 -openssl_release 1.1.0 -vs_version 140 -config release -platform x64 -library shared
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----
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The above command will download all the necessary packages (perl, nasm, etc)
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and build OpenSSL in <*C:\%POCO_BASE%\openssl\build*> directory; the built OpenSSL
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binaries can be linked from EXEs and DLLs built with Visual Studio 2015 to 2019.
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Pre-generated POCO Visual Studio projects are configured to use headers and
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libraries from <*C:\%POCO_BASE%\openssl\build*> directory.
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<*Use a third-party pre-built OpenSSL*>
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Yet another way to install OpenSSL on Windows is to use a binary
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(prebuild) release, for example the one from Shining Light
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Productions that comes with a Windows installer
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(http://www.slproweb.com/products/Win32OpenSSL.html).
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Depending on where you have installed the OpenSSL libraries,
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you might have to edit the build script (buildwin.cmd), or add the
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necessary paths to the INCLUDE and LIB environment variables. You might also
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have to edit the project settings if the names of the OpenSSL libraries
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from your build differ from the names used in the project files.
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!ODBC
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The Data library requires ODBC support on your system if you want to
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build the ODBC connector (which is the default). On Windows platforms,
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ODBC should be readily available if you have the Windows SDK installed.
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On Unix/Linux platforms, you can use [[http://www.iodbc.org/ iODBC]]
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or [[http://www.unixodbc.org/ unixODBC]. On
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Linux, use your distribution's package management system to install the
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necessary libraries and header files. For example, on Ubuntu, type
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$ sudo apt-get install libiodbc2 libiodbc2-dev
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----
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to install the iODBC library and header files.
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The Data/ODBC and Data/MySQL Makefiles will search for the ODBC and
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MySQL headers and libraries in various places. Nevertheless, the
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Makefiles may not be able to find the headers and libraries. In this
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case, please edit the Makefile in Data/ODBC and/or Data/MySQL
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accordingly.
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!MySQL Client
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The Data library requires the [[http://dev.mysql.com MySQL]] client
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libraries and header files if you want to build the MySQL connector
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(which is the default). On Windows platforms, use the MySQL client
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installer to install the necessary files. On Unix/Linux platforms, use
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the package management system of your choice to install the necessary
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files. Alternatively, you can of course build MySQL yourself from
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source.
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!!Building using CMake
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As an alternative to the platform specific Makefiles and Solutions, CMake can be used
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to do build POCO C++ Libraries on any platform with any compiler. CMake is a meta build system and it
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generate native makefiles and workspaces that can be used in the compiler environment of
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your choice. For a quick overview see http://cgold.readthedocs.io/en/latest/overview/cmake-can.html
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POCO C++ Libraries requires CMake 3.2 or higher. Static binaries for many platforms can be downloaded from http://www.cmake.org/
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CMake supports out of source builds and this is the recommended way to build POCO C++ Libraries using CMake.
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Assuming the POCO C++ Libraries source is located in /path/to/poco directory and you like to build POCO C++ Libraries just type the
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following commands (Command parameters are all the same on any platform).
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$ cmake -H/path/to/poco -B/path/to/poco-build
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$ cmake --build /path/to/poco-build
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This will build POCO C++ Libraries in a subdirectory <*poco-build*>. All files produced during build are located in this directory.
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!!!Some cmake basic parameters:
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For Makefile (default on Unix systems) and Ninja based build system (and all other single-configuration generators), there exists following build types:
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* Debug
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* Release
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* RelWithDebInfo (Release build with Debug infos)
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* MinSizeRel (Release build with size optimisation)
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As default, POCO is build RelWithDebInfo. See cmake output like:
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...
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-- [cmake] Build type: RelWithDebInfo
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...
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You can change this with following parameter: <*CMAKE_BUILD_TYPE=....*>
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For example to build with debug symbols:
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$ cmake -H/path/to/poco -B/path/to/poco-build -DCMAKE_BUILD_TYPE=Debug
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$ cmake --build /path/to/poco-build
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For more infos see https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html?highlight=cmake_build_type
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For multi-configuration generators, (like Visual Studio and Xcode), CMAKE_BUILD_TYPE is ignored!
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For these you should set build type at build time:
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For example to build with debug symbols:
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$ cmake -H/path/to/poco -B/path/to/poco-build
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$ cmake --build /path/to/poco-build --config Debug
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Installation path of Poco is as defaults to /usr/local on UNIX and c:/Program Files/Poco on Windows.
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You can change the path with following parameter: <*CMAKE_INSTALL_PREFIX=....*>
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For example to install in /usr:
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$ cmake -H/path/to/poco -B/path/to/poco-build -DCMAKE_INSTALL_PREFIX=/usr
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$ cmake --build /path/to/poco-build --install
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This will install the poco libs in /usr/lib and the binaries in /usr/bin etc.
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See also cmake output like:
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....
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-- [cmake] Installation target path: /usr/local
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....
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For more infos see https://cmake.org/cmake/help/latest/variable/CMAKE_INSTALL_PREFIX.html?highlight=cmake_install_prefix
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To set libraries type, you can use following parameter: <*BUILD_SHARED_LIBS=[ON/OFF]*>
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$ cmake -H/path/to/poco -B/path/to/poco-build -DBUILD_SHARED_LIBS=OFF
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$ cmake --build /path/to/poco-build
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As default, Poco build dynamic libraries, see cmake output like:
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...
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-- Building dynamic libraries
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...
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To set some additional compiler flags, you can use following parameters:
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* CMAKE_C_FLAGS For C compiler
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* CMAKE_CXX_FLAGS For C++ compiler
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For example:
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$ cmake -H/path/to/poco -B/path/to/poco-build -DCMAKE_CXX_FLAGS=-fstack-protector
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$ cmake --build /path/to/poco-build
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For default compile flags, see cmake output like:
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...
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-- [cmake] Build with cxx flags: -O2 -g -DNDEBUG
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-- [cmake] Build with c flags: -O2 -g -DNDEBUG
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...
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For more infos see https://cmake.org/cmake/help/latest/variable/CMAKE_LANG_FLAGS.html#variable:CMAKE_%3CLANG%3E_FLAGS
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To use the compiler of your choice, you can use following paramters:
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* CMAKE_C_COMPILER C compiler
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* CMAKE_CXX_COMPILER C++ compiler
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For example to use the clang compiler, execute following cmake command:
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$ cmake -H/path/to/poco -B/path/to/poco-build -DCMAKE_C_COMPILER=/path/to/clang -DCMAKE_CXX_COMPILER=/path/to/clang++
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$ cmake --build /path/to/poco-build
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To cross compile POCO C++ Libraries for another architecture/device you should have a <*cmake toolchain file*> and execute following command:
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$ cmake -H/path/to/poco -B/path/to/poco-build -DCMAKE_TOOLCHAIN_FILE=/path/to/toolchainfile
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$ cmake --build /path/to/poco-build
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See https://cmake.org/cmake/help/latest/manual/cmake-toolchains.7.html for more information.
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!!!Poco special build parameters:
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POCO C++ Libraries allows you to set some build time options. As an example: to disable the SevenZip support
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type the following command:
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$ cmake -H/path/to/poco -B/path/to/poco-build -DENABLE_SEVENZIP=OFF
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$ cmake --build /path/to/poco-build
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Here an overview of POCO build options:
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* ENABLE_XML Set to OFF|ON (default is ON) to build XML support library
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* ENABLE_JSON Set to OFF|ON (default is ON) to build JSON support library
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* ENABLE_NET Set to OFF|ON (default is ON) to build Net support library
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* ENABLE_NETSSL Set to OFF|ON (default is ON) to build NetSSL support library (Need installed openssl libraries)
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* ENABLE_CRYPTO Set to OFF|ON (default is ON) to build Crypto support library (Need installed openssl libraries)
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* ENABLE_JWT Set to OFF|ON (default is ON, if OpenSSL is present) to build JWT (JSON Web Token) library
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* ENABLE_DATA Set to OFF|ON (default is ON) to build Data support library
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* ENABLE_DATA_SQLITE Set to OFF|ON (default is ON) to build Data SQlite support library
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* ENABLE_DATA_MYSQL Set to OFF|ON (default is ON) to build Data MySQL or MariaDB support library (Need installed MySQL or MariaDB client libraries)
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* ENABLE_DATA_POSTGRESQL Set to OFF|ON (default is ON) to build SQL PosgreSQL support library (Need installed PostgreSQL client libraries)
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* ENABLE_DATA_ODBC Set to OFF|ON (default is ON) to build Data ODBC support library (Need installed ODBC libraries)
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* ENABLE_MONGODB Set to OFF|ON (default is ON) to build MongoDB support library
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* ENABLE_REDIS Set to OFF|ON (default is ON) to build Redis support library
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* ENABLE_PDF Set to OFF|ON (default is OFF) to build PDF support library
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* ENABLE_UTIL Set to OFF|ON (default is ON) to build Util support library
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* ENABLE_ZIP Set to OFF|ON (default is ON) to build Zip support library
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* ENABLE_SEVENZIP Set to OFF|ON (default is OFF) to build SevenZip support library
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* ENABLE_APACHECONNECTOR Set to OFF|ON (default is ON) to build ApacheConnector support library (Need installed apache and apr libraries)
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* ENABLE_CPPPARSER Set to OFF|ON (default is OFF) to build C++ parser library
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* ENABLE_ENCODINGS Set to OFF|ON (default is ON) to build Encodings library
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* ENABLE_ENCODINGS_COMPILER Set to OFF|ON (default is OFF) to build Encodings Compiler
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* ENABLE_PAGECOMPILER Set to OFF|ON (default is ON) to build PageCompiler
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* ENABLE_PAGECOMPILER_FILE2PAGE Set to OFF|ON (default is ON) to build File2Page
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* ENABLE_POCODOC Set to OFF|ON (default is OFF) to build Poco Documentation Generator
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* ENABLE_TESTS Set to OFF|ON (default is OFF) to build Unit tests
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* ENABLE_LONG_RUNNING_TESTS Set to OFF|ON (default is ON) to use long running test
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* POCO_UNBUNDLED Set to OFF|ON (default is OFF) to control linking dependencies as external
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Windows only parameter:
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* POCO_MT Set to OFF|ON (default is OFF) to control build of POCO as /MT instead of /MD
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* ENABLE_MSVC_MP Set to OFF|ON (default is OFF) to control parallel build of POCO with MSVC
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* ENABLE_NETSSL_WIN Set to OFF|ON (default is OFF) to build NetSSL support library(Need installed openssl libraries For Windows only)
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You can also see and enable or disable available options execute following command:
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$ cmake-gui /path/to/poco-build
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or for console only:
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$ ccmake /path/to/poco-build
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POCO C++ Libraries options are prefixed with <*ENABLE_*>. (This will be changed in POCO 2.x.x to <*POCO_*>)
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!!!Third-party library location
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If a third-party library is not installed in a default location, cmake will fail to run.
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There exists following parameters to set additional search paths for cmake to find third-party libraries:
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To find PostgreSQL:
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* PostgreSQL_ROOT_DIR - Set root installation path where to find include path and libraries of PostgreSQL
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or
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* PostgreSQL_ROOT_INCLUDE_DIRS - Set include paths where to find PostgreSQL headers
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* PostgreSQL_ROOT_LIBRARY_DIRS - Set library paths where to find PostgreSQL libraries
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To find ODBC:
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* ODBC_ROOT_DIR - Set root installation path where to find include path and libraries of ODBC
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or
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* ODBC_ROOT_INCLUDE_DIRS - Set include paths where to find ODBC headers
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* ODBC_ROOT_LIBRARY_DIRS - Set library paths where to find ODBC libraries
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To find MySQL or MariaDB:
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* MYSQL_ROOT_DIR - Set root installation path where to find include path and libraries of MySQL or MariaDB
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or
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* MYSQL_ROOT_INCLUDE_DIRS - Set include paths where to find MySQL or MariaDB headers
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* MYSQL_ROOT_LIBRARY_DIRS - Set library paths where to find MySQL or MariaDB libraries
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* APRUTIL_ROOT_DIR - Set root installation path where to find include path and libraries of apr util
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or
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* APRUTIL_ROOT_INCLUDE_DIRS - Set include paths where to find apr util headers
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* APRUTIL_ROOT_LIBRARY_DIRS - Set library paths where to find apr util libraries
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* APR_ROOT_DIR - Set root installation path where to find include path and libraries of apr
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or
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* APR_ROOT_INCLUDE_DIRS - Set include paths where to find apr headers
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* APR_ROOT_LIBRARY_DIRS - Set library paths where to find apr libraries
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* APACHE2_ROOT_DIR - Set root installation path where to find include path and libraries of apache2
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or
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* APACHE2_ROOT_INCLUDE_DIRS - Set include paths where to find apache2 headers
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For example set installation path of MySQL:
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$ cmake -H/path/to/poco -B/path/to/poco-build -DMYSQL_ROOT_DIR=/usr/local/mysql
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$ cmake --build /path/to/poco-build
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||
or
|
||
$ cmake -H/path/to/poco -B/path/to/poco-build -DMYSQL_ROOT_INCLUDE_DIRS=/usr/local/mysql/include/mysql -DMYSQL_ROOT_LIBRARY_DIRS=/usr/local/lib/mysql
|
||
$ cmake --build /path/to/poco-build
|
||
|
||
|
||
|
||
|
||
!!!How to use POCO in your cmake project:
|
||
|
||
To use POCO C++ Libraries in your cmake project, add following line in your project for example to use crypto:
|
||
|
||
find_package(Poco REQUIRED Crypto)
|
||
....
|
||
target_link_libraries(yourTargetName ... Poco::Crypto)
|
||
|
||
If you get an error like 'By not providing "FindPoco.cmake"', then you should set CMAKE_PREFIX_PATH to the installation directory of your POCO C++ Libraries. For example:
|
||
|
||
$ cmake -H/path/to/yourProject -B/path/to/yourProject-build -DCMAKE_PREFIX_PATH=/path/to/installationOf/poco
|
||
|
||
!!!Some other Hints:
|
||
|
||
For a faster build, use ninja as build system. See https://ninja-build.org/
|
||
For example on Ubuntu execute following commands:
|
||
|
||
$ sudo apt-get install ninja-build
|
||
|
||
This install <*ninja*> command. To use ninja-build execute following cmake commands:
|
||
|
||
$ cmake -H/path/to/poco -B/path/to/poco-build -GNinja
|
||
$ cmake --build /path/to/poco-build --target all
|
||
|
||
See https://cmake.org/cmake/help/latest/manual/cmake-generators.7.html for other generators.
|
||
|
||
To enable verbose output from Makefile builds, execute following cmake commands:
|
||
|
||
$ cmake -H/path/to/poco -B/path/to/poco-build -DCMAKE_VERBOSE_MAKEFILE=ON
|
||
$ cmake --build /path/to/poco-build --target all
|
||
|
||
|
||
Some more infos about cmake see:
|
||
|
||
$ cmake --help-full
|
||
https://cmake.org/cmake/help/latest/
|
||
http://cgold.readthedocs.io/en/latest/index.html
|
||
|
||
|
||
!!Building On Windows
|
||
|
||
Microsoft Visual Studio 2015 or newer is required to build the
|
||
POCO C++ Libraries on Windows platforms.
|
||
Solution and project files for all versions are included.
|
||
64-bit (x64) builds are supported as well.
|
||
You can either build from within Visual Studio (<*Build->Batch
|
||
Build->Select All;Rebuild*>) or from the command line. To build from the
|
||
command line, start the Visual Studio 2015 (or 2017, 2019, etc.) Command
|
||
Prompt and go (<[cd]>) to the directory where you have extracted the POCO
|
||
C++ Libraries sources. Then, simply start the <*buildwin.cmd*> script and
|
||
pass as argument the version of Visual Studio (140, 150, 160). You
|
||
can customize what is being built by <*buildwin.cmd*> by passing appropriate
|
||
command line arguments to it. Call <*buildwin.cmd*> without arguments to see
|
||
what is available. Build environment is set up by the buildwin.cmd; to avoid
|
||
build problems, it is recommended to start the build in a clean command
|
||
prompt console, i.e. not in the one provided by Visual Studio for 32/64-bit
|
||
builds (although those will work fine if used appropriately for the right
|
||
32/64-bit build type).
|
||
|
||
To disable certain components (e.g., NetSSL_OpenSSL or Data/MySQL) from
|
||
the build, edit the text file named <*components*> in the distribution
|
||
root directory and remove or comment the respective lines.
|
||
|
||
Certain libraries, like NetSSL_OpenSSL, Crypto or Data/MySQL have
|
||
dependencies to other libraries. Since the build script does not know where to
|
||
find the necessary header files and import libraries, you have to either add
|
||
the header file paths to the <[INCLUDE]> environment variable and the
|
||
library path to the <[LIB]> environment variable, or you'll have to edit the
|
||
buildwin.cmd script, where these environment variables can be set as
|
||
well.
|
||
|
||
In order to run the test suite and the samples, the top-most bin
|
||
directory containing the resulting shared libraries must be in the PATH
|
||
environment variable.
|
||
|
||
|
||
!!Building On Unix/Linux/macOS
|
||
|
||
For building on Unix platforms, the POCO C++ Libraries come with their
|
||
own build system. The build system is based on GNU Make 3.80 (or newer),
|
||
with the help from a few shell scripts. If you do not have GNU Make 3.80
|
||
(or newer) installed on your machine, you will need to download it from
|
||
http://directory.fsf.org/devel/build/make.html and
|
||
build and install it prior to building the POCO C++ Libraries.
|
||
|
||
You can check the version of GNU Make installed on your system with
|
||
|
||
$ gmake --version
|
||
----
|
||
|
||
or
|
||
|
||
$ make --version
|
||
----
|
||
|
||
Once you have GNU Make up and running, the rest is quite simple.
|
||
To extract the sources and build all libraries, testsuites and samples, simply
|
||
|
||
$ gunzip poco-X.Y.tar.gz
|
||
$ tar -xf poco-X.Y.tar
|
||
$ cd poco-X.Y
|
||
$ ./configure
|
||
$ gmake -s
|
||
----
|
||
|
||
For help, either invoke
|
||
|
||
$ ./configure --help
|
||
----
|
||
|
||
Alternatively, you can read the configure script source for a list of possible options.
|
||
For starters, we recommend <[--no-tests]> and <[--no-samples]>, to reduce build times.
|
||
On a multicore or multiprocessor machine, use parallel makes to speed up
|
||
the build (<[make -j4]>).
|
||
|
||
Once you have successfully built POCO, you can install it
|
||
to <*/usr/local*> (or another directory specified as parameter
|
||
to configure <[--prefix=<path>]>):
|
||
|
||
$ sudo gmake -s install
|
||
----
|
||
|
||
You can omit certain components from the build. For example, you might
|
||
want to omit Data/ODBC or Data/MySQL if you do not have the corresponding
|
||
third-party libraries (iodbc or unixodbc, mysqlclient) installed
|
||
on your system. To do this, use the <[--omit]> argument to configure:
|
||
|
||
$ ./configure --omit=Data/ODBC,Data/MySQL
|
||
----
|
||
|
||
<*IMPORTANT: Make sure that the path to the build directory does not
|
||
contain symbolic links. Furthermore, on macOS (or other systems
|
||
with case insensitive filesystems), make sure that the characters in
|
||
the path have the correct case. Otherwise you'll get an error saying
|
||
"Current working directory not under $PROJECT_BASE.".*>
|
||
|
||
|
||
!!Building On QNX Neutrino
|
||
|
||
For QNX Neutrino, the Unix build system (see the instructions above) is used.
|
||
You can use the build system to cross-compile for a target platform on a
|
||
Solaris or Linux host. Unfortunately, the Cygwin-based Windows host
|
||
environment has some major quirks that prevent the build system from
|
||
working there. You can also use the build system on a self-hosted QNX
|
||
system. The default build configuration for QNX (found in
|
||
build/config/QNX) is for a self-hosted x86 platform. To specify another
|
||
target, edit the CCVER setting in the build configuration file. For
|
||
example, to compile for a PowerPC target, specify
|
||
CCVER=3.3.1,gcc_ntoppcbe.
|
||
|
||
Service Pack 1 for QNX Neutrino 6.3 must be installed, otherwise compiling the
|
||
Foundation library will fail due to a problem with the <*<list>*> header in the
|
||
default (Dinkumware) C++ standard library.
|
||
|
||
When building on QNX, you might want to disable NetSSL_OpenSSL, Crypto and
|
||
some Data connectors, unless you have the necessary third party components
|
||
available:
|
||
|
||
$ ./configure --omit=NetSSL_OpenSSL,Crypto,Data/ODBC,Data/MySQL
|
||
----
|
||
|
||
!!!Tutorials And Sample Code
|
||
|
||
Introductory documentation consisting of various documents and tutorials
|
||
in the form of slide decks can be found at the
|
||
[[http://pocoproject.org/documentation/ POCO C++ Libraries Documentation]] page.
|
||
|
||
Sample applications demonstrating the various features of the POCO C++
|
||
Libraries are delivered with the source code. Every library's source
|
||
code directory
|
||
has a <*samples*> directory containing various sample applications.
|
||
|
||
When building the sample applications on platforms using the gmake-based
|
||
build system, please make sure that the environment variable
|
||
<[POCO_BASE]> contains
|
||
the path to the POCO C++ Libraries source tree root directory.
|
||
|
||
|
||
!!!Creating Your Own POCO-based Applications
|
||
|
||
The best way to create your first POCO-based application is by copying
|
||
one of the sample projects and making the desired changes. Examine the
|
||
project files and Makefiles to see what compiler options must be set for
|
||
your specific platform.
|