POCO C++ lib开发环境构建
Welcome
Thank you for downloading the POCO C++ Libraries and welcome to the growing community of POCO C++ Libraries users. This document will help you in getting a smooth ride while installing and setting up the POCO C++ Libraries and going the first steps with the software.
Setting Up The POCO C++ Libraries
The POCO C++ Libraries are delivered in full source code only. Due to the large number of possible build configurations, no binary releases are provided from the project maintainers. This means that you have to build the libraries and tools before you can use them the first time.
Note: There are binary releases available as installation packages for various operating systems (e.g., Debian Linux, Ubuntu Linux, OpenBSD, OpenWRT, etc.). However, these packages are not maintained by the core team and may not always be up to date.
Source Code Distribution Format
The source code for the POCO C++ Libraries is delivered in a ZIP file for Windows users and/or in a compressed TAR file (.tar.gz or .tar.bz2) for Unix/Linux users. Both archives contain the same files, the only difference is that all text files in the ZIP files have line endings suitable for Windows (CR-LF), while the text files in the TAR file have line endings suitable for Unix/Linux (LF only). All libraries and tools follow a common convention for the directory layout. This directory layout is shown below.
- build/ the build system for Unix/OpenVMS and additional utility scripts
- config/ build configurations for various Unix platforms
- rules/ common build rules for all platforms
- scripts/ build and utility scripts
- vms/ OpenVMS build system scripts
- vxconfig/ VxWorks build configurations
- bin/ all executables (dynamic link libraries on Windows)
- bin64/ all 64-bit executables (and DLLs)
- doc/ additional documentation
- lib/ all libraries (import libraries on Windows)
- lib64/ all 64-bit libraries
- CppUnit/ project and make/build files for the CppUnit unit testing framework
- doc/ additional documentation
- include/
- CppUnit/ header files for CppUnit
- src/ source files for CppUnit
- WinTestRunner/ Windows GUI for CppUnit
- Foundation/ project and make/build files for the Foundation library
- include/
- Poco/ header files for the Foundation library
- src/ source files for the Foundation library
- testsuite/ project and make/build files for the Foundation testsuite
- src/ source files for the Foundation testsuite
- bin/ test suite executables
- samples/ sample applications for the Foundation library
- XML/ project and make/build files for the XML library
- include/
- Poco/
- XML/ header files for the core XML library
- SAX/ header files for SAX support
- DOM/ header files for DOM support
- src/ source files for the XML library
- testsuite/ project and make/build files for the XML testsuite
- src/ source files for the XML testsuite
- bin/ test suite executables
- samples/ sample applications for the XML library
- Net/ project and make/build files for the Net library
- include/
- Poco/
- Net/ header files for the Net library
- src/ source files for the Net library
- testsuite/ project and make/build files for the Net testsuite
- src/ source files for the Net testsuite
- bin/ test suite executables
- samples/ sample applications for the Net library
Depending on what package you have downloaded (Basic or Complete Edition), there may be other libraries as well (such as Data, Crypto, NetSSL_OpenSSL and Zip).
External Dependencies
The following libraries require third-party software (header files and libraries) being installed to build properly:
- NetSSL_OpenSSL and Crypt require OpenSSL.
- Data/ODBC requires ODBC (Microsoft ODBC on Windows, unixODBC or iODBC on Unix/Linux)
- Data/MySQL requires the MySQL client.
OpenSSL
Most Unix/Linux systems (including Mac OS X) already have OpenSSL preinstalled, or OpenSSL can be easily installed using the system’s package management facility. For example, on Ubuntu (or other Debian-based Linux distributions) you can type
- $ sudo apt-get install openssl libssl-dev
to install the necessary packages. If your system does not have OpenSSL, please get it from http://www.openssl.org/ or another source. You do not have to build OpenSSL yourself — a binary distribution is fine.
The easiest way to install OpenSSL on Windows is to use a binary (prebuild) release, for example the one from Shining Light Productions that comes with a Windows installer (http://www.slproweb.com/products/Win32OpenSSL.html). Depending on where you have installed the OpenSSL libraries, you might have to edit the build script (buildwin.cmd), or add the necessary paths to the INCLUDE and LIB environment variables. You might also have to edit the project settings if the names of the OpenSSL libraries from your build differ from the names used in the project files.
ODBC
The Data library requires ODBC support on your system if you want to build the ODBC connector (which is the default). On Windows platforms, ODBC should be readily available if you have the Windows SDK installed. On Unix/Linux platforms, you can use iODBC (preinstalled on Mac OS X) or unixODBC. On Linux, use your distribution's package management system to install the necessary libraries and header files. For example, on Ubuntu, type
- $ sudo apt-get install libiodbc2 libiodbc2-dev
to install the iODBC library and header files.
The Data/ODBC and Data/MySQL Makefiles will search for the ODBC and MySQL headers and libraries in various places. Nevertheless, the Makefiles may not be able to find the headers and libraries. In this case, please edit the Makefile in Data/ODBC and/or Data/MySQL accordingly.
MySQL Client
The Data library requires the MySQL client libraries and header files if you want to build the MySQL connector (which is the default). On Windows platforms, use the MySQL client installer to install the necessary files. On Unix/Linux platforms, use the package management system of your choice to install the necessary files. Alternatively, you can of course build MySQL yourself from source.
Building On Windows
Microsoft Visual Studio 7.1 (2003), 8.0 (2005), 9.0 (2008) or 10.0 (2010) is required to build the POCO C++ Libraries on Windows platforms. Solution and project files for all versions are included. For Visual Studio 2008 and 2010, 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 .NET 2003/2005/2008/2010 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 (71, 80, 90 or 100). 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.
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 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/Mac OS X
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
See 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 Mac OS X (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 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.
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