DCMTK
Version 3.6.1 20120515
OFFIS DICOM Toolkit
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================================== DICOM TOOLKIT (DCMTK) INSTALLATION ================================== ------------------------------------------------------------------------------- Please note that most sections of this document refer to the official release DCMTK 3.6.0, i.e. they are not yet updated for the changes of the latest development snapshot (version 3.6.1). This will be done for the next release, which will probably be called version 3.6.2. The toolkit should compile on Linux systems with gcc 4.4.5 since this is our main development platform. Also on Windows systems, it usually works with VisualStudio 2008. However, there is no guarantee that the software also compiles on your system. ------------------------------------------------------------------------------- PRE-REQUISITES ============== The DICOM toolkit (DCMTK) needs to be compiled with a C++ compiler. We recommend using the GNU C++ compiler in versions higher than 2.95 (most of the development was done using GNU C++ 4.1.2 on Linux 2.6). The software is also known to compile using the SUNPro C++ compiler, the Intel C++ compiler and the Microsoft Visual C++ compiler. Compatibility with other C++ compilers is unknown, however, we have tried to keep language demands to a minimum (newer C++ features such as ANSI C++ Library, Exceptions and RTTI have been avoided). You will need several hundred Mbytes of disk space to compile all the software. SUPPORTED SYSTEMS ================= Microsoft Windows ----------------- The DCMTK software can be compiled under a native Microsoft Windows environment (see section "BUILDING (Windows)" below for more information). The current release successfully compiles on the following systems: Windows XP / Intel x86 / Microsoft Visual C++ 6.0 (Service Pack 6) Windows XP / Intel x86 / Microsoft Visual C++ 2005 Standard (VS 8) Windows XP / Intel x86 / Microsoft Visual C++ 2008 Express (VS 9) Windows XP / Intel x86 / Microsoft Visual C++ 2010 Express (VS 10) Windows Vista / Intel x86 / Microsoft Visual C++ 2008 Professional (VS 9) Windows 7 / Intel x86 / Microsoft Visual C++ 2010 Express (VS 10) Windows 7 / amd64|x86_64 / Microsoft Visual C++ 2010 Express (VS 10) Windows 7 / amd64|x86_64 / Microsoft Visual C++ 2010 Ultimate (VS 10) The dcmqrscp tool has been ported to Windows, but does not yet support multi-processing (i.e. multiple clients concurrently) under Windows. The worklist WWW scripts require an HTTP server and a Perl interpreter and have not been tested under Windows (file locking interaction with the wlmscpfs server may or may not work). Unix (or lookalikes) -------------------- The current DCMTK software release successfully compiles on the following operating system / hardware / compiler combinations using the instructions given below: FreeBSD 6.4 / Intel x86 / GNU gcc 3.4.6 FreeBSD 7.3 / Intel x86 / GNU gcc 4.2.1 FreeBSD 8.1 / Intel x86 / GNU gcc 4.2.1 FreeBSD 8.1 / amd64|x86_64 / GNU gcc 4.2.1 HP-UX 10.20 / HP PA-RISC / GNU gcc 2.95.3 (see note *1,*2) IRIX 6.3 / SGI O2 / GNU gcc 2.95.3 (see note *1) Linux 2.4.20 / Intel x86 / GNU gcc 2.95.3 (RedHat 7.3) Linux 2.4.21 / Intel x86 / GNU gcc 3.4.6 (CentOS 3.9) Linux 2.6.18 / Intel x86 / GNU gcc 4.1.2 (Debian 4.0) Linux 2.6.18 / amd64|x86_64 / Intel Compiler 11.1 (Scientific Linux 5.5) Linux 2.6.18 / amd64|x86_64 / GNU gcc 4.1.2 (Debian 4.0) Linux 2.6.18 / amd64|x86_64 / GNU gcc 4.5.2 (CentOS 5.5) Linux 2.6.26 / amd64|x86_64 / GNU gcc 4.3.2 (Debian 5.0) Linux 2.6.32 / amd64|x86_64 / GNU gcc 4.4.4 (RHEL 6.0) Linux 2.6.34 / amd64|x86_64 / Intel Compiler 11.1 (SuSE 11.3, see note *3) Linux 2.6.35 / amd64|x86_64 / GNU gcc 4.4.5 (Ubuntu 10.10) MacOS X 10.4.10 / amd64|x86_64 / Apple gcc 4.0.1 (see note *10) MacOS X 10.6.5 / amd64|x86_64 / Apple gcc 4.2.1 (see note *10) OpenBSD 4.4 / Intel x86 / GNU gcc 3.3.5 propolice Solaris 9 / Sun Sparc / SunPro CC 5.8 (Sun Studio 11) Solaris 10 / Sun Sparc / SunPro CC 5.9 (Sun Studio 12u2) Solaris 10 / Sun Sparc / GNU gcc 3.4.3 Windows XP / Intel x86 / CygWin 1.7.7-1 (gcc 3.4.4 and 4.3.4) Windows XP / Intel x86 / MinGW/MSys 1.0.11 (gcc 4.5.0) Earlier releases are known to also compile on the following platforms which are not available to us for testing purposes any more: FreeBSD 4.11 / Intel x86 / GNU gcc 2.95.4 FreeBSD 6.0 / Intel x86 / GNU gcc 3.4.4 HP-UX 9.05 / HP PA 1.1 / GNU gcc 2.7.2.1 IBM AIX 3.2 / RS 6000 / IBM AIX XL C++ Compiler/6000 V1.0 IRIX 5.3 / SGI Indy / GNU gcc 2.95.2 (see note *1) IRIX 6.5 / SGI Onyx / GNU gcc 2.95.2 (see note *4) IRIX 6.5 / SGI Onyx / MIPSpro 7.3.1.1m (see note *4) Linux 2.0.33 / Intel x86 / GNU gcc 2.7.2.1 Linux 2.2.16 / IBM S/390 / GNU gcc 2.95.2 Linux 2.2.16 / Intel x86 / GNU gcc 2.95.2 Linux 2.4.20 / Intel x86 / GNU gcc 2.95.4, 3.2.3, 3.3.6, 3.4.5 and 4.0.3 (Debian) Linux 2.6.1 / amd64|x86_64 / GNU gcc 4.0 (Fedora Core 4) MacOS X 10.1.5 / Power Mac G4 / Apple gcc-934.3 (gcc 2.95.2, see note *5) MacOS X 10.3.3 / Power Mac G4 / Apple gcc-1640 (gcc 3.3) MacOS X 10.4.3 / Power Mac G4 / Apple gcc 4.0.1 NetBSD 1.6.2 / Intel x86 / GNU gcc 2.95.3 NetBSD 2.1 / Intel x86 / GNU gcc 3.3.3 NeXTStep 3.3 / Intel x86 / NeXT/GNU gcc 2.5.8 (see note *6) OpenBSD 3.8 / Intel x86 / GNU gcc 3.3.5 propolice OSF/1 4.0 / DEC Alpha / Compaq C++ V6.3-002 (see note *7) OSF/1 4.0 / DEC Alpha / GNU gcc 2.95.3 QNX 6.2.1 / Intel x86 / GNU gcc 2.95.3 (see note *8) Solaris 2.5.1 / Sun Sparc / GNU egcs 1.1.2 (egcs-2.91.66) Solaris 2.5.1 / Sun Sparc / Sun SC 2.0.1 (SunPro C++ 3.0.1) Solaris 2.5.1 / Sun Sparc / SunPro CC 4.2 Solaris 7 / Sun Sparc / GNU gcc 2.95.3 Solaris 7 / Sun Sparc / SunPro CC 4.2 Solaris 8 / Sun Sparc / GNU gcc 3.2.3, 3.4 Solaris 8 / Sun Sparc / SunPro CC 5.2 (Sun WorkShop 6 update 1) Solaris 9 / Sun Sparc / SunPro CC 5.2 (Sun WorkShop 6 update 1) Solaris 10 / Intel x86 / SunPro CC 5.8 (Sun Studio 11) SunOS 4.1.3 / Sun Sparc / GNU gcc 2.7.2 Ultrix 4.4 / DEC MIPS / GNU gcc 2.95.2 (see notes *1,*9) Windows 9x / Intel x86 / Microsoft Visual C++ 5.0 Windows NT 4.0 / Intel x86 / Microsoft Visual C++ 6.0 (Service Pack 6) Windows XP / Intel x86 / Microsoft Visual C++ .NET 2003 (VS 7.1) Windows XP / Intel x86 / CygWin 1.5.18 (gcc 3.4.4) Windows XP / Intel x86 / MinGW/MSys 1.0.10 (gcc 3.4.2) Platform Notes -------------- (*1) The dcmimage/dcmimgle module makes intensive use of inlined templates. Depending on the compiler and the available virtual memory, compilation might fail if this module is compiled with optimization. Compilation succeeds if the optimizer and any automatic inlining of code are switched off. For example GNU gcc might require that the -O option is removed and -fno-default-inline is added to the CXXFLAGS setting in the file "config/Makefile.def", which is created by configure (see below). (*2) HP-UX 10.2 requires DCMTK to be configured with --disable-lfs, i.e. without large file support. (*3) Building with Intel Compiler Suite 11.1 requires GNU C++ Standard Library version 4.3. (*4) IRIX 6 users are recommended to consult SGI's Notes on building Open Source software on IRIX, available from: http://freeware.sgi.com/howto.html In short, after running configure, the following modifications are required in "config/Makefile.def" before DCMTK can be compiled: - remove "-lsocket -lnsl" from LIBS On IRIX, DCMTK should be built using GNU make (gmake), not with the IRIX specific pmake/smake/make commands. (*5) MacOS X 10.1 requires DCMTK to be configured with --disable-threads because certain re-entrant Posix functions such as localtime_r are not available. (*6) The NeXT gcc 2.5.8 compiler provides only very limited support for C++ templates and, therefore, might fail to compile the dcmimage/dcmimgle module ("internal compiler error"). The gcc compiler also does not properly support the "protected" derivation of classes which is used in the dcmsr module. However, modules and applications that were present in earlier releases of DCMTK still compile. (*7) Might require -O0 in order to compile "dcmsr/libsrc/dsrdoctr.cc". (*8) The libz.so included in QNX 6.2.1 is missing the zlibVersion() function. This will cause the DCMTK compile to fail if configured with --with-zlib. It has already been corrected in QNX's internal cvs repository. Earlier QNX versions (6.2.0) and future versions (6.3.x) should work fine. As a temporary measure it is possible to link against /usr/lib/libz.so.1 which does include that function, or to disable zlib support in DCMTK by calling configure --without-zlib. (*9) Requires -fpermissive when compiled with GNU gcc due to the X11R5 header files which are not ANSI compliant. (*10) For MacOS X 10.4 and 10.6 the OFSemaphore class is not available since it is compiling but not working on MacOS X. The reason is that semaphores must be named in MacOS X and thus the current implementation fails to construct semaphores in the OFSemaphore constructor. However, the toolkit so far does not make any use of this class. Please note: Due to resource limitations it is not practical for us to ensure that the newest release of DCMTK is problem free under all the above combinations. Currently, our main development environment is Linux 2.6 using GNU C++ 4.1.2 and DCMTK should always compile on this platform. OPENSSL SUPPORT =============== Starting with release 3.4.2, DCMTK supports the "DICOM Security Enhancements One", i.e. DICOM network transmission "tunneled" through a secure TLSv1 transport connection. DCMTK relies on the OpenSSL toolkit (www.openssl.org) for the underlying cryptographic routines and the TLS protocol implementation. This release of DCMTK is known to compile with the OpenSSL releases 0.9.8 to 1.0.0, although other releases may work as well. When using autoconf, if support for security enhancements is desired, a compiled version of the OpenSSL libraries and include files must be available during compilation of DCMTK. By default, DCMTK checks whether OpenSSL is installed in the standard path and enables support automatically if present. When using CMake, if support for security enhancements is desired, a compiled version of the OpenSSL libraries and include files must be available during compilation of DCMTK, and the OpenSSL support must be switched on explicitly (using CMake, see below). By default, DCMTK checks whether OpenSSL is installed and enables support automatically if present. By default, DCMTK checks the standard paths on Unix platforms. For Windows platforms, check the discussion on CMake below. ZLIB SUPPORT ============ Starting with release 3.5.2, DCMTK supports the "Deflated Explicit VR Little Endian" Transfer Syntax, i.e. ZIP-compressed network transmission and media storage. DCMTK relies on the zlib toolkit (www.zlib.org) for the underlying compression routines. This release of DCMTK is known to compile with the zlib releases 1.2.3 to 1.2.5, although other releases may work as well. When using autoconf, if support for zlib compression is desired, a compiled version of the zlib library and include files must be available during compilation of DCMTK. By default, DCMTK checks whether zlib is installed in the standard path and enables support automatically if present. When using CMake, a compiled version of the zlib libraries and include files must be available during compilation of DCMTK. See discussion on CMake below. LIBTIFF SUPPORT =============== Starting with release 3.5.1, DCMTK supports the conversion of DICOM images to TIFF. DCMTK relies on the libtiff toolkit (www.libtiff.org) for this purpose. This release of DCMTK is known to compile with the libtiff releases 3.7.4 to 3.9.4, although other releases may work as well. However, libtiff releases prior to version 3.7.0 will not work since the TIFFCleanup() function was not yet available. On Windows, libtiff 3.7.4 or higher is required due to incompatible API changes in libtiff. When using autoconf, if support for TIFF export is desired, a compiled version of the libtiff libraries and include files must be available during compilation of DCMTK, and the libtiff support must be switched on explicitly. By default, DCMTK checks whether libtiff is installed in the standard path and enables support automatically if present. When using CMake, a compiled version of the libtiff libraries and include files must be available during compilation of DCMTK. See discussion on CMake below. LIBPNG SUPPORT ============== Starting with release 3.5.3, DCMTK supports the conversion of DICOM images to PNG. DCMTK relies on the libpng toolkit (www.libpng.org) for this purpose. This release of DCMTK is known to compile with the current libpng releases 1.2.8 to 1.4.3, although other releases may work as well. When using autoconf, if support for PNG export is desired, a compiled version of the libpng libraries and include files must be available during compilation of DCMTK, and the libpng support must be switched on explicitly. By default, DCMTK checks whether libpng is installed in the standard path and enables support automatically if present. It should be noted that libpng requires zlib. When using CMake, a compiled version of the libpng libraries and include files must be available during compilation of DCMTK. See discussion on CMake below. LIBXML2 SUPPORT =============== Starting with release 3.5.3, DCMTK supports the conversion of XML documents to DICOM files. DCMTK relies on the libxml2 toolkit (www.libxml.org) for this purpose. This release of DCMTK is known to compile with the libxml2 releases 2.6.26 to 2.7.7, although other releases may work as well. When using autoconf, if support for XML import is desired, a compiled version of the libxml2 (and possibly iconv) libraries and include files must be available during compilation of DCMTK. By default, DCMTK checks whether libxml2 is installed in the standard path and enables support automatically if present. When using CMake, if support for XML import is desired, a compiled version of the libxml2 (and possibly iconv) libraries and include files must be available during compilation of DCMTK. See discussion on CMake below. TCP WRAPPER (LIBWRAP) SUPPORT ============================= Starting with release 3.5.3, DCMTK supports Wietse Venema's TCP wrappers library (libwrap) which is freely available for most Unix platforms and part of the default installation of most recent Linux distributions. This library allows to enforce host-based access control via the "/etc/hosts.deny" and "/etc/hosts.allow" configuration files. See hosts_access(5) man page for details. When using autoconf, if support for TCP wrappers is desired, a compiled version of the libwrap library and include file <tcpd.h> must be available during compilation of DCMTK. By default, DCMTK checks whether libwrap is installed in the standard path and enables support automatically if present. Since DCMTK uses the TCP wrappers from C++ code, an ANSI C compatible header file <tcpd.h> is required. The official release 7.6 of the TCP wrappers library is not ANSI C compatible and does not work with DCMTK (i.e. will not be recognized by DCMTK's configure script). However, many current Linux and BSD distributions ship with an ANSI C compatible header file. When using CMake, TCP wrappers are currently not supported. LIBICONV SUPPORT ================ Starting with release 3.6.2, DCMTK supports the conversion between different character encodings. For this purpose, DCMTK relies on the libiconv toolkit (www.gnu.org/s/libiconv/). This release of DCMTK is known to compile with the libiconv release 1.14, although other releases may work as well. When using autoconf, if support for libiconv conversion is desired, a compiled version of the libiconv library and include files must be available during compilation of DCMTK. Please note that DCMTK also needs the bundled copy of libcharset. By default, DCMTK checks whether libiconv and libcharset are installed in the standard path and enables support automatically if present. When using CMake, a compiled version of the libiconv and libcharset libraries and include files must be available during compilation of DCMTK. See discussion on CMake below. BUILDING (Unix with autoconf) ============================= GNU autoconf is used to configure the software for the hardware / operating system you are using. You do not need to obtain GNU autoconf to compile and install this software. All the necessary configure scripts are included in this distribution. The configure scripts examine your system capabilities and automatically generate include files and Makefiles. Perform the following steps from the top-level (dcmtk-3.6.0) directory to compile and install the software: Step 1: ./configure Step 1 executes the configure scripts in each subdirectory. First, the system capabilities are examined and then Makefiles are generated. By default, executables and other files will be installed (in Step 3) in the directory "/usr/local" in the corresponding subdirectories. If you wish to use another install prefix you can use the --prefix=<path> flag to configure. E.g., if you wish to install underneath your home directory in "~/dicom" then you should start configure as: ./configure --prefix=$HOME/dicom Step 1 is also the place where support for the external libraries can be enabled or disabled. By default, all libraries installed in the standard path are enabled automatically. Use the --without-openssl switch to disable OpenSSL support. The --with-opensslinc option allows to specify the directory in which OpenSSL is installed. This is usually the directory that has been used as --prefix when compiling and installing OpenSSL. For example, if you wish to enable the security enhancements, and OpenSSL is installed in "/usr/local/apps/openssl-1.0.0", then you should start configure as: ./configure --with-opensslinc=/usr/local/apps/openssl-1.0.0 Configure will assume that the OpenSSL include files are installed in "/usr/local/apps/openssl-1.0.0/include" and will expect the library in "/usr/local/apps/openssl-1.0.0/lib". Appropriate options will be passed to the compiler and the linker. Support for zlib, libtiff, libpng, libxml2, libwrap and libiconv can be enabled in a similar way (in case these libraries are not installed in the standard path): ./configure --with-libzlibinc=/usr/local/apps/zlib-1.2.5 --with-libtiffinc=/usr/local/apps/libtiff-3.9.4 --with-libpnginc=/usr/local/apps/libpng-1.4.3 --with-libxmlinc=/usr/local/apps/libxml-2.7.7 --with-libwrapinc=/usr/local/apps/tcp_wrappers-7.6 --with-libiconvinc=/usr/local/apps/libiconv-1.14 Different configure options can be combined in any order. configure --help will print a list of all existing configure options. configure --help=short will display only those options specific to the DCMTK. Useful configure options are: --enable-debug compile with debug code, don't optimize --disable-debug compile without debug code (default) --enable-threads=TYPE compile with MT support (posix/solaris/auto=default) --disable-threads compile without MT support --enable-lfs=TYPE compile with LFS support (lfs/lfs64/auto=default) --disable-lfs compile without LFS support --enable-std-includes use C++ ANSI standard includes --disable-std-includes use old C++ includes Step 2: make all Step 2 will build the libraries and executables. If you run into problems see the section "Solving configuration and compilation problems" below. Step 3: make install Step 3 will install the executables and some support files (data dictionary, configuration and documentation files). If you also wish to install the libraries and include files then use "make install-lib". For the HTML documentation (see below) use "make install-html" (requires Doxygen to be installed); "make install-all" installs all of the above. In case the files should be installed in a temporary directory, e.g. in order to create a distribution package, use "make install DESTDIR=<path>" to prepend <path> to the installation directories specified for configure. Step 4: make distclean Step 4 will revert the source tree to the state prior to Step 1. If you just want to get rid of object files and local executables use "make clean" instead. Note: In case you do not want to compile all modules, you can remove those modules from the text file "config/modules" prior to Step 1 and execute the following commands: cd config ./rootconf cd .. This generates a new Makefile and configure script in the top-level toolkit directory. Solving configuration and compilation problems: The configure script might not be able to guess the correct compiler and compiler flags to use. For example, we have noticed that use of the -pedantic flag to the GNU C++ compiler causes compilation errors on some systems (e.g. SunOS 4.1.3) due to system include files with incorrect ANSI function prototypes. You can set environment variables to initialize configure before it is called (before Step 1 above): Set environment variable CC to the name of your C compiler. Set environment variable CFLAGS to the compile flags of your C compiler. Set environment variable CXX to the name of your C++ compiler. Set environment variable CXXFLAGS to the compile flags of your C++ compiler. Set environment variable LDFLAGS to your linker flags. Set environment variable CPPFLAGS to you preprocessor flags. You do not need to specify all the above environment variables since the default settings are sensible for most Unix compilers. Further influential environment variables are listed in the output of configure --help. If the configure script fails you may have to change the configuration settings in the config directory. See the "config/docs" directory for more information. See also the FAQ at http://forum.dcmtk.org/faq for more hints. BUILDING (CMake in general) =========================== CMake is a cross-platform, open-source make system which can be used to control the software compilation process using simple configuration files. CMake can be obtained free of charge from http://www.cmake.org/. For configuring the DCMTK, the toolkit contains corresponding "CMakeLists.txt" files in all necessary directories. In detail, these "CMakeLists.txt" files will serve as an input to CMake which will generate suitable build files for all of DCMTK's projects from these files. More info about building the DCMTK with CMake can be found in DCMTK's wiki: http://support.dcmtk.org/wiki/dcmtk/howto/cmakeconfiguration Microsoft Windows with CMake ---------------------------- Starting with DCMTK 3.5.4, no project files for Visual Studio are provided anymore. Project files for all supported compilers can be generated with CMake. In order to be able to use CMake for configuration purposes in DCMTK, perform the following steps to install CMake on your machine: 1. Go to http://www.cmake.org/ to download the latest release version of CMake for Windows. 2. Execute the file which was downloaded to install CMake on your machine. Follow all install instructions appropriately. In order to manually configure the support for the above mentioned external libraries (OpenSSL, zlib, libtiff, libpng, libxml2 and libiconv) through CMake, perform the following steps: 1. Go Start -> Programs -> CMake -> "CMake" or "CMake (cmake-gui)" to start the CMake utility through which the configuration can be done. 2. In the entry field "Where is the source code:" enter the directory in which the DCMTK source code resides, e.g. "C:\dcmtk-3.6.0". 3. In the entry field "Where to build the binaries:" enter the directory in which the libraries and binaries are to be built, e.g. "C:\dcmtk-bin". 4. In the combobox "Build for:" or "Specify the generator for this project:" select the corresponding development environment which shall be used to compile DCMTK. 5. Go "Configure". (CMake will look for a corresponding compiler, read in all of DCMTK's "CMakeLists.txt" files and perform some tests. The variables in the tabular area will be displayed in red. These variables can now be set in order to turn the support for any of the external libraries on or off.) 6. Make the corresponding configurations in CMake's user interface. For example, in order to turn on libxml2 support, set the value of variable "DCMTK_WITH_XML" to "ON" and set the value of variable "WITH_LIBXMLINC" to the path where the include files and libraries of libxml2 can be found, e.g. "C:\libxml2-2.7.7". The support of all other external libraries can be turned on in a similar way: libpng support: set "DCMTK_WITH_PNG" to "ON" and set "WITH_LIBPNGINC" e.g. to "C:\libpng-1.4.2" libtiff support: set "DCMTK_WITH_TIFF" to "ON" and set "WITH_LIBTIFFINC" e.g. to "C:\tiff-3.9.2" OpenSSL support: set "DCMTK_WITH_OPENSSL" to "ON" and set "WITH_OPENSSLINC" e.g. to "C:\openssl-1.0.0" zlib support: set "DCMTK_WITH_ZLIB" to "ON" and set "WITH_ZLIBINC" e.g. to "C:\zlib-1.2.5" libiconv support: set "DCMTK_WITH_ICONV" to "ON" and set "WITH_LIBICONVINC" e.g. to "C:\libiconv-1.14" In order to turn the support of a certain external library off, set the value of the corresponding variable ("DCMTK_WITH_XML", "DCMTK_WITH_PNG", "DCMTK_WITH_TIFF", "DCMTK_WITH_OPENSSL", "DCMTK_WITH_ZLIB" or "DCMTK_WITH_ICONV") to "OFF". (Please note that the include files of all external libraries are always expected in a directory named "include" below the directory which is specified in "WITH_LIBXMLINC", "WITH_LIBPNGINC", "WITH_LIBTIFFINC", "WITH_OPENSSLINC", "WITH_ZLIBINC" or "WITH_LIBICONVINC".) (Please note also that the library files of all external libraries are always expected in directory named "lib" below the directory which is specified in "WITH_LIBXMLINC", "WITH_LIBPNGINC", "WITH_LIBTIFFINC", "WITH_OPENSSLINC", "WITH_ZLIBINC" or "WITH_LIBICONV". Moreover, note that the following filenames must be used for the corresponding lib files: libxml2: "iconv_d.lib" - debug version "iconv_o.lib" - release version (optimized) "libxml2_d.lib" - debug version "libxml2_o.lib" - release version (optimized) libpng: "libpng_d.lib" - debug version "libpng_o.lib" - release version (optimized) libtiff: "libtiff_d.lib" - debug version "libtiff_o.lib" - release version (optimized) openssl: "libeay32_d.lib" - debug version "libeay32_o.lib" - release version (optimized) "ssleay32_d.lib" - debug version "ssleay32_o.lib" - release version (optimized) zlib: "zlib_d.lib" - debug version "zlib_o.lib" - release version (optimized) libiconv: "libiconv_d.lib" - debug version "libiconv_o.lib" - release version (optimized) "libchset_d.lib" - debug version "libchset_o.lib" - release version (optimized) The debug versions of all libraries must be compiled for the multithread debug version of the runtime (/MTd), the release version must be compiled for the non-debug multithread runtime (/MT). Precompiled versions of all libraries can be downloaded from http://dicom.offis.de/dcmtk#lib-win.) If you want the DCMTK to be built as dynamic link libraries (.dll) instead of static libraries (.lib), set the "BUILD_SHARED_LIBS" option to "ON". Please note that this is currently not supported because it might conflict with the use of external libraries. 7. Go "Configure" a second time. (CMake will adjust the configuration according to the displayed specifications.) 8. Go "OK" or "Generate". (CMake will generate new project files in the corresponding directories. These files will be adjusted according to the displayed specifications, i.e. support for the external libraries will be turned on or off.) Having performed these steps, the Microsoft Visual Studio IDE can be started, DCMTK's workspace file can be opened, and one or more of DCMTK's subprojects can be built. In case you want to build all libraries and applications, mark the "ALL_BUILD" subproject and build it. The "INSTALL" subproject installs the executables, libraries, include, support and documentation files to the directory specified by the variable "CMAKE_INSTALL_PREFIX" (very similar to "make install-all" on Unix systems). Please note that other Windows compilers, e.g. Borland C++ Builder, are currently not actively supported. However, they may work. Known limitations of DCMTK on the Windows platform. 1. The dcmqrscp tool cannot spark multiple processes. Every association must be handled completely before a new association is possible. 2. On Windows 95, dcmqrscp always uses exclusive file locking (the LockFileEx API call is available on Windows NT only). This is no problem if only a single process exists. 3. Most applications will only work if the computer has configured TCP/IP, a network name and a TCP/IP address. If SLIP or PPP is used the applications can only work if a connection to a provider exists (since the IP addresses and hostnames are given dynamically). 4. Visual C++ contains two different implementations of I/O streams which should never be mixed within one application because this may cause application errors that are hard to find. The old, now deprecated implementation uses the traditional cfront header files <iostream.h> etc. The new implementation uses <iostream> etc. as defined in ANSI/ISO C++. DCMTK can be configured to use either of the two interfaces. This behaviour can be changed in "config/include/dcmtk/config/osconfig.h" in the build directory where the symbol USE_STD_CXX_INCLUDES is declared. NOTE: Previous releases of DCMTK (3.5.1 and older) used the old interface when compiled with Visual C++ 6.0. When updating software that uses DCMTK as a library, make sure that the use of the iostream library is consistent throughout the complete application! Unix with CMake --------------- Starting with DCMTK 3.6.0, CMake can also be used for non-Windows systems. NOTE: This is not (yet) the recommended way since this mechanism is not as mature and stable as the above described approach using GNU autoconf. Please feel free to test it and report any issue. Due to this, it is only sparsely documented. See the previous section on building the DCMTK with CMake on Windows platforms, but note that details may differ. HTML DOCUMENTATION AND MAN PAGES ================================ Most DCMTK modules have been documented with Doxygen (www.doxygen.org), a free source code documentation system similar to Javadoc. Unix users who have Doxygen installed can create a hypertext documentation with "make html" in the "dcmtk-3.6.0" or "doxygen" directory; Windows and other CMake users should build the "DOXYGEN" subproject. A project file for Microsoft's HTML Help Workshop can also be generated allowing to create a single CHM file (compressed HTML) from the documentation. Other output formats (e.g. LaTeX) can be enabled by changing the configuration file in the doxygen directory. At the current time, dcmimage, dcmimgle, dcmjpeg, dcmpstat, dcmsign, dcmsr, dcmtls, dcmwlm and ofstd are completely documented, dcmdata, dcmjpls, dcmnet and oflog are almost completely documented. See FAQ entry: "Where is rest of the documentation?" On Unix platforms, man pages for all command line tools are installed during the "make install" step. In order to use them, just add the directory (e.g. "/usr/local/share/man") to the MANPATH environment variable and try "man dcmdump" to check whether it works. In order to generate plain text files from the man pages call "make text" in the "doxygen" directory. The output files are stored in "doxygen/man2text". COMPILE-TIME FLAGS AND ENVIRONMENT VARIABLES ============================================ The behaviour of several DCMTK tools and libraries can be modified by a number of compile-time flags (macros). Those macros which are not automatically handled by the configure mechanism are documented in "config/docs/macros.txt" (or "/usr/local/share/doc/dcmtk/macros.txt"). There is also a number of environment variables which affect DCMTK's behaviour. These are documented in "config/docs/envvars.txt" (or "/usr/local/share/doc/ dcmtk/envvars.txt"). RUNNING THE TEST SUITE ====================== DCMTK comes with a test suite that verifies that the toolkit works as expected. The tests are contained in a module's "tests" subdirectory. When using configure for building DCMTK, all tests can be run via "make check". If a test fails, make will stop and the failure reason of the test which failed should be visible. You can also run the test suite with CMake. However, the steps needed for running the test suite depend on the generator used. The Visual Studio generators will create a "RUN_TESTS" subproject. Building this project will call CTest and run all tests. When using the Makefile generator, "make test" runs the test suite. Other generators should use a similar approach. For closer inspection, individual tests can be run directly. The Makefiles will build the test runner for each module as "<module>/tests/tests". CMake will add the module name as a prefix to this file's name, e.g. "ofstd_tests". For more information, call this program with the --help option. --------- Have fun. Marco Eichelberg, Joerg Riesmeier, Michael Onken, Uli Schlachter OFFIS DICOM Team, Oldenburg, Germany. Last revised: 2012-03-12 (Riesmeier)