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Boost.RegexInstallation |
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[ Important: If you are upgrading from the 2.x version of this library then you will find a number of changes to the documented header names and library interfaces, existing code should still compile unchanged however - see Note for Upgraders. ]
When you extract the library from its zip file, you must preserve its internal directory structure (for example by using the -d option when extracting). If you didn't do that when extracting, then you'd better stop reading this, delete the files you just extracted, and try again!
This library should not need configuring before use; most popular compilers/standard libraries/platforms are already supported "as is". If you do experience configuration problems, or just want to test the configuration with your compiler, then the process is the same as for all of boost; see the configuration library documentation.
The library will encase all code inside namespace boost.
Unlike some other template libraries, this library consists of a mixture of template code (in the headers) and static code and data (in cpp files). Consequently it is necessary to build the library's support code into a library or archive file before you can use it, instructions for specific platforms are as follows:
make -fbcb5.mak
The build process will build a variety of .lib and .dll files (the exact number depends upon the version of Borland's tools you are using) the .lib and dll files will be in a sub-directory called bcb4 or bcb5 depending upon the makefile used. To install the libraries into your development system use:
make -fbcb5.mak install
library files will be copied to <BCROOT>/lib and the dll's to <BCROOT>/bin, where <BCROOT> corresponds to the install path of your Borland C++ tools.
You may also remove temporary files created during the build process (excluding lib and dll files) by using:
make -fbcb5.mak clean
Finally when you use regex++ it is only necessary for you to add the <boost> root director to your list of include directories for that project. It is not necessary for you to manually add a .lib file to the project; the headers will automatically select the correct .lib file for your build mode and tell the linker to include it. There is one caveat however: the library can not tell the difference between VCL and non-VCL enabled builds when building a GUI application from the command line, if you build from the command line with the 5.5 command line tools then you must define the pre-processor symbol _NO_VCL in order to ensure that the correct link libraries are selected: the C++ Builder IDE normally sets this automatically. Hint, users of the 5.5 command line tools may want to add a -D_NO_VCL to bcc32.cfg in order to set this option permanently.
If you would prefer to do a static link to the regex libraries even when using the dll runtime then define BOOST_REGEX_STATIC_LINK, and if you want to suppress automatic linking altogether (and supply your own custom build of the lib) then define BOOST_REGEX_NO_LIB.
If you are building with C++ Builder 6, you will find that <boost/regex.hpp> can not be used in a pre-compiled header (the actual problem is in <locale> which gets included by <boost/regex.hpp>), if this causes problems for you, then try defining BOOST_NO_STD_LOCALE when building, this will disable some features throughout boost, but may save you a lot in compile times!
You need version 6 of MSVC to build this library. If you are using VC5 then you may want to look at one of the previous releases of this library
Open up a command prompt, which has the necessary MSVC environment variables defined (for example by using the batch file Vcvars32.bat installed by the Visual Studio installation), and change to the <boost>\libs\regex\build directory.
Select the correct makefile - vc6.mak for "vanilla" Visual C++ 6 or vc6-stlport.mak if you are using STLPort.
Invoke the makefile like this:
nmake -fvc6.mak
You will now have a collection of lib and dll files in a "vc6" subdirectory, to install these into your development system use:
nmake -fvc6.mak install
The lib files will be copied to your <VC6>\lib directory and the dll files to <VC6>\bin, where <VC6> is the root of your Visual C++ 6 installation.
You can delete all the temporary files created during the build (excluding lib and dll files) using:
nmake -fvc6.mak clean
Finally when you use regex++ it is only necessary for you to add the <boost> root directory to your list of include directories for that project. It is not necessary for you to manually add a .lib file to the project; the headers will automatically select the correct .lib file for your build mode and tell the linker to include it.
Note that if you want to statically link to the regex library when using the dynamic C++ runtime, define BOOST_REGEX_STATIC_LINK when building your project (this only has an effect for release builds). If you want to add the source directly to your project then define BOOST_REGEX_NO_LIB to disable automatic library selection.
Important: there have been some reports of compiler-optimization bugs affecting this library, (particularly with VC6 versions prior to service patch 5) the workaround is to build the library using /Oityb1 rather than /O2. That is to use all optimization settings except /Oa. This problem is reported to affect some standard library code as well (in fact I'm not sure if the problem is with the regex code or the underlying standard library), so it's probably worthwhile applying this workaround in normal practice in any case.
Note: if you have replaced the C++ standard library that comes with VC6, then when you build the library you must ensure that the environment variables "INCLUDE" and "LIB" have been updated to reflect the include and library paths for the new library - see vcvars32.bat (part of your Visual Studio installation) for more details. Alternatively if STLPort is in c:/stlport then you could use:
nmake INCLUDES="-Ic:/stlport/stlport" XLFLAGS="/LIBPATH:c:/stlport/lib" -fvc6-stlport.mak
If you are building with the full STLPort v4.x, then use the vc6-stlport.mak
file provided and set the environment variable STLPORT_PATH to point to the
location of your STLport installation (Note that the full STLPort libraries
appear not to support single-thread static builds).
There is a conservative makefile for the g++ compiler. From the command prompt change to the <boost>/libs/regex/build directory and type:
make -fgcc.mak
At the end of the build process you should have a gcc sub-directory containing release and debug versions of the library (libboost_regex.a and libboost_regex_debug.a). When you build projects that use regex++, you will need to add the boost install directory to your list of include paths and add <boost>/libs/regex/build/gcc/libboost_regex.a to your list of library files.
There is also a makefile to build the library as a shared library:
make -fgcc-shared.mak
which will build libboost_regex.so and libboost_regex_debug.so.
Both of the these makefiles support the following environment variables:
CXXFLAGS: extra compiler options - note that this applies to both the debug and release builds.
INCLUDES: additional include directories.
LDFLAGS: additional linker options.
LIBS: additional library files.
For the more adventurous there is a configure script in <boost>/libs/config; see the config library documentation.
There is a makefile for the sun (6.1) compiler (C++ version 3.12). From the command prompt change to the <boost>/libs/regex/build directory and type:
dmake -f sunpro.mak
At the end of the build process you should have a sunpro sub-directory containing single and multithread versions of the library (libboost_regex.a, libboost_regex.so, libboost_regex_mt.a and libboost_regex_mt.so). When you build projects that use regex++, you will need to add the boost install directory to your list of include paths and add <boost>/libs/regex/build/sunpro/ to your library search path.
Both of the these makefiles support the following environment variables:
CXXFLAGS: extra compiler options - note that this applies to both the single and multithreaded builds.
INCLUDES: additional include directories.
LDFLAGS: additional linker options.
LIBS: additional library files.
LIBSUFFIX: a suffix to mangle the library name with (defaults to nothing).
This makefile does not set any architecture specific options like -xarch=v9, you can set these by defining the appropriate macros, for example:
dmake CXXFLAGS="-xarch=v9" LDFLAGS="-xarch=v9" LIBSUFFIX="_v9" -f sunpro.mak
will build v9 variants of the regex library named libboost_regex_v9.a etc.
There is a generic makefile (generic.mak) provided in <boost-root>/libs/regex/build - see that makefile for details of environment variables that need to be set before use. Alternatively you can using the Jam based build system. If you need to configure the library for your platform, then refer to the config library documentation .
Revised 17 May 2003
© Copyright John Maddock 1998- 2003
Permission to use, copy, modify, distribute and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. Dr John Maddock makes no representations about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty.
