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|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta name="generator" content=
"HTML Tidy for Linux (vers 25 March 2009), see www.w3.org">
<title>Building the TIFF Software Distribution</title>
</head>
<body bgcolor="white">
<h1><font face="Arial, Helvetica, Sans"><img src=
"images/cramps.gif" width="159" height="203" align="left" border=
"1" hspace="6"> Building the Software Distribution</font></h1>
<ul>
<li><a href="#CMAKE">Building on all systems with CMake</a>.</li>
<li><a href="#UNIX">Building on a UNIX system with Autoconf</a>.</li>
<li><a href="#PC">Building on an MS-DOS or Windows system with nmake</a>.</li>
<li><a href="#VMS">Building on a VMS system</a>.</li>
<li><a href="#Other">Building the Software on Other
Systems.</a></li>
</ul>
<br clear="left">
This chapter contains step-by-step instructions on how to configure
and build the TIFF software distribution. The software is most
easily built on a UNIX system, but with a little bit of work it can
easily be built and used on other non-UNIX platforms.
<hr>
<a name="CMake" id="CMAKE"></a>
<h2>Building on all systems with CMake</h2> CMake may be used to
generate build files for most common build systems and IDEs, and
supports all UNIX-like systems as well as Windows. See
the <a href="http://www.cmake.org/">CMake website</a> for further
details. To build the software on you need to first run
<tt>cmake</tt> to configure the build and generate the system-specific
build files. This reads the top-level <tt>CMakeLists.txt</tt> file,
which probes the target system for necessary tools and functions,
checks any options you specified to configure the build, and then
outputs build files configured for your system. If using <tt>Unix
Makefiles</tt>, once configuration is done, you simply
run <tt>make</tt> (or <tt>gmake</tt>) to build the software and
then <tt>make install</tt> to do the installation. For other build
systems, you do the equivalent steps with the tool for that system.
For example, on any UNIX system:
<div style="margin-left: 2em">
<pre>
% <b>cd ./tiff-4.0.5</b>
% <b>cmake</b>
<i>...lots of messages...</i>
% <b>make</b>
<i>...lots of messages...</i>
% <b>make test</b>
<i>...lots of messages...</i>
# <b>make install</b>
</pre></div>
Building is dependent on a <tt>make</tt> utility and a C
(and optionally a C++ compiler), so you will need these tools.
<p>In general, the software is designed such that the following
targets will always be available</p>
<div style="margin-left: 2em">
<pre>
make [all] build stuff
make test run the test suite
make install build and install stuff
make clean remove object files, executables and cruft
</pre></div>
<a name="CMakeBuildTrees" id= "CMakeBuildTrees"></a>
<hr width="65%" align="right">
<h3>Build Trees</h3>
There are two schemes for configuring and building the software. If
you intend to build the software for only one target system, you
can configure the software so that it is built in the same
directories as the source code.
<div style="margin-left: 2em">
<pre>
% <b>gzip -dc tiff-4.0.5.tar.gz | tar -xf -</b>
% <b>cd ./tiff-4.0.5</b>
% <b>cmake</b>
% <b>make</b>
% <b>make test</b>
% <b>make install</b>
</pre></div>
<p>Otherwise, you can configure a build tree that is parallel to
the source tree hierarchy (or in some completely different place)
but which contains only configured files and files created during
the build procedure.</p>
<div style="margin-left: 2em">
<pre>
% <b>gzip -dc tiff-4.0.5.tar.gz | tar -xf -</b>
% <b>mkdir tiff-4.0.5-build</b>
% <b>cd ./tiff-4.0.5-build</b>
% <b>cmake ../tiff-4.0.5</b>
% <b>make</b>
% <b>make test</b>
% <b>make install</b>
</pre></div>
This second scheme is useful for:
<ul>
<li>building multiple targets from a single source tree</li>
<li>building from a read-only source tree (e.g. if you receive the
distribution on CD-ROM)</li>
<li>sharing the source files via a network, but building on
multiple systems</li>
<li>keeping the source tree clean
(unlike <tt>autoconf</tt>, <tt>cmake</tt> does not provide
a <tt>distclean</tt> target, so out of source builds are
recommended)</li>
</ul>
<a name="CMakeGenerators" id= "CMakeGenerators"></a>
<hr width="65%" align="right">
<h3>Generators</h3> The default generator for UNIX is <tt>Unix
Makefiles</tt>, and on Windows is <tt>NMake Makefiles</tt> or MSBuild
depending upon the setup. Run <b>cmake --help</b> to list all the
generators available for your platform. For example, to use the Ninja
<a href="https://martine.github.io/ninja/">build system</a> on UNIX or
Windows:
<pre>
<b>cmake -G Ninja</b>
<b>cmake --build .</b>
<b>ctest -V</b>
<b>cmake --build . --target install</b>
</pre>
<p>Note that <b>cmake --build .</b> is a build-system-independent way
of building a target; you can always use the build system directly.</p>
<p>Alternatively, using the MSBuild system on Windows (64-bit Release
build with VS2013):
</p>
<pre>
<b>cmake -G "Visual Studio 12 2013 Win64"</b>
<b>cmake --build . --config Release</b>
<b>ctest -V -C Release</b>
<b>cmake --build . --config Release --target install</b>
</pre>
With the above configuration, it's also possible to open the generated
solution file with the Visual Studio IDE as well as building on the
command-line.
<a name="CMakeConfigOptions" id="CMakeConfigOptions"></a>
<hr width="65%" align="right">
<h3>Configuration Options</h3>
The configuration process is critical to the proper compilation,
installation, and operation of the
software. The <tt>CMakeLists.txt</tt> script runs a series of tests to
decide whether or not the target system supports required
functionality and, if it does not, whether it can emulate or
workaround the missing functions. After running <tt>cmake</tt>, check
the <tt>CMakeCache.txt</tt> file; this contains all the results of the
checks performed and the options set by the user. If <tt>cmake</tt>
failed to run, check <tt>CMakeFiles/CMakeOutput.log</tt>
and <tt>CMakeFiles/CMakeError.log</tt>; these should record the error
which caused the failure.
<p>A second function of the configure script is to set the default
configuration parameters for the software. Of particular note are the
directories where the software is to be installed. By default the
software is installed in the <b>/usr/local</b> hierarchy. To change
this behaviour the appropriate parameters can be specified on the
command line. Run <b>cmake --help</b> to get a full list of possible
options, and <b>cmake -LH</b> to list all the configurable options for
this software package, or <b>cmake -LAH</b> to show all advanced
options in addition. Standard installation related options are shown
below.</p>
<pre>
<tt>
Installation directories:
CMAKE_INSTALL_PREFIX
Fine tuning of the installation directories:
CMAKE_INSTALL_BINDIR user executables [PREFIX/bin]
CMAKE_INSTALL_SBINDIR system admin executables [PREFIX/sbin]
CMAKE_INSTALL_LIBEXECDIR program executables [PREFIX/libexec]
CMAKE_INSTALL_SYSCONFDIR read-only single-machine data [PREFIX/etc]
CMAKE_INSTALL_SHAREDSTATEDIR modifiable architecture-independent data [PREFIX/com]
CMAKE_INSTALL_LOCALSTATEDIR modifiable single-machine data [PREFIX/var]
CMAKE_INSTALL_LIBDIR object code libraries [PREFIX/lib]
CMAKE_INSTALL_INCLUDEDIR C header files [PREFIX/include]
CMAKE_INSTALL_OLDINCLUDEDIR C header files for non-gcc [/usr/include]
CMAKE_INSTALL_DATAROOTDIR read-only arch.-independent data root [PREFIX/share]
CMAKE_INSTALL_DATADIR read-only architecture-independent data [DATAROOTDIR]
CMAKE_INSTALL_LOCALEDIR locale-dependent data [DATAROOTDIR/locale]
CMAKE_INSTALL_MANDIR man documentation [DATAROOTDIR/man]
CMAKE_INSTALL_DOCDIR documentation root [DATAROOTDIR/doc/tiff]
</tt>
</pre>
Also see the
CMake <a href="http://www.cmake.org/cmake/help/v3.3/">documentation</a>
for <a href="http://www.cmake.org/cmake/help/v3.3/manual/cmake-variables.7.html"
>additional variables</a> which may be set.
<a name="CMakePackages" id="CMakePackages"></a>
<hr width="65%" align="right">
<h3>Configuring Optional Packages/Support</h3>
The TIFF software comes with several packages that are installed
only as needed, or only if specifically configured at the time the
configure script is run. Packages can be configured via the
<b>cmake</b> commandline parameters.
<dl>
<dt><i>Static/Shared Objects Support</i></dt>
<dd><tt>BUILD_SHARED_LIBS[=ON|OFF] build shared
libraries [default=ON]</tt><br>
<p>This option controls whether or not to configure the software
to build a shared and static binaries for the TIFF library. Use of
shared libraries can significantly reduce the disk space needed for
users of the TIFF software. If shared libraries are not used then
the code is statically linked into each application that uses it.
</p>
<p><tt>ld-version-script[=ON|OFF] Enable linker version
script (default is ON)</tt></p>
<p>Add shared library symbol versioning on ELF-based systems (e.g.
Linux and FreeBSD) which use the GNU linker. This is needed if
several major versions of libtiff might be loaded at once into the
same program.</p>
</dd>
<dt><i>JPEG Support</i></dt>
<dd><tt>jpeg[=ON|OFF] enable IJG JPEG
library usage (required for JPEG compression, enabled by default)<br>
JPEG_INCLUDE_DIR=DIR location of IJG
JPEG library headers<br>
JPEG_LIBRARY=DIR location of IJG JPEG
library binary)</tt></dd>
<dd>The <tt>JPEG</tt> package enables support for the handling of
TIFF images with JPEG-encoded data. Support for JPEG-encoded data
requires the Independent JPEG Group (IJG) <tt>libjpeg</tt>
distribution; this software is available at <a href=
"http://www.ijg.org/">http://www.ijg.org/</a>. <b>cmake</b>
script automatically tries to search for a working IJG JPEG
installation. If it fails to find library, JPEG support will be
automatically disabled. If you want specify the exact paths to
library binary and headers, use above options for that.</dd>
<dt><i>ZIP Support</i></dt>
<dd>The <tt>ZIP</tt> support enables support for the handling of TIFF
images with deflate-encoded data (enabled by default if
available). Support for deflate-encoded data requires the freely
available <tt>zlib</tt> distribution written by Jean-loup Gailly and
Mark Adler; this software is available at <a href=
"http://www.zlib.org/">http://www.zlib.org/</a>.</dd>
</dl>
<a name="Sample" id="Sample"></a>
<hr width="65%" align="right">
<a name="UNIX" id="UNIX"></a>
<h2>Building on a UNIX System with Autoconf</h2>
To build the software on a UNIX system you need to first run the
configure shell script that is located in the top level of the
source directory. This script probes the target system for
necessary tools and functions and constructs a build environment in
which the software may be compiled. Once configuration is done, you
simply run <tt>make</tt> (or <tt>gmake</tt>) to build the software
and then <tt>make install</tt> to do the installation; for example:
<div style="margin-left: 2em">
<pre>
% <b>cd ./tiff-4.0.5</b>
% <b>./configure</b>
<i>...lots of messages...</i>
% <b>make</b>
<i>...lots of messages...</i>
% <b>make check</b>
<i>...lots of messages...</i>
# <b>make install</b>
</pre></div>
Supplied makefiles are dependent on a <tt>make</tt> utility and a C
(and optionally a C++ compiler), so you will need these tools.
<p>In general, the software is designed such that the following
should be ``<i>make-able</i>'' in each directory:</p>
<div style="margin-left: 2em">
<pre>
make [all] build stuff
make check run the test suite
make install build and install stuff
make clean remove object files, executables and cruft
make distclean remove everything, that can be recreated
</pre></div>
Note that after running "<tt>make distclean</tt>" the
<tt>configure</tt> script must be run again to create the Makefiles
and other make-related files. <a name="BuildTrees" id=
"BuildTrees"></a>
<hr width="65%" align="right">
<h3>Build Trees</h3>
There are two schemes for configuring and building the software. If
you intend to build the software for only one target system, you
can configure the software so that it is built in the same
directories as the source code.
<div style="margin-left: 2em">
<pre>
% <b>gzip -dc tiff-4.0.5.tar.gz | tar -xf -</b>
% <b>cd ./tiff-4.0.5</b>
% <b>./configure</b>
% <b>make</b>
% <b>make check</b>
% <b>make install</b>
</pre></div>
<p>Otherwise, you can configure a build tree that is parallel to
the source tree hierarchy (or in some completely different place)
but which contains only configured files and files created during
the build procedure.</p>
<div style="margin-left: 2em">
<pre>
% <b>gzip -dc tiff-4.0.5.tar.gz | tar -xf -</b>
% <b>mkdir tiff-4.0.5-build</b>
% <b>cd ./tiff-4.0.5-build</b>
% <b>../tiff-4.0.5/configure</b>
% <b>make</b>
% <b>make check</b>
% <b>make install</b>
</pre></div>
This second scheme is useful for:
<ul>
<li>building multiple targets from a single source tree</li>
<li>building from a read-only source tree (e.g. if you receive the
distribution on CD-ROM)</li>
<li>sharing the source files via a network, but building on
multiple systems</li>
</ul>
<a name="ConfigOptions" id="ConfigOptions"></a>
<hr width="65%" align="right">
<h3>Configuration Options</h3>
The configuration process is critical to the proper compilation,
installation, and operation of the software. The configure script
runs a series of tests to decide whether or not the target system
supports required functionality and, if it does not, whether it can
emulate or workaround the missing functions. This procedure is
fairly complicated and, due to the nonstandard nature of most UNIX
systems, prone to error. The first time that you configure the
software for use you should check the output from the configure
script and look for anything that does not make sense for your
system.
<p>A second function of the configure script is to set the default
configuration parameters for the software. Of particular note are
the directories where the software is to be installed. By default
the software is installed in the <b>/usr/local</b> hierarchy. To
change this behaviour the appropriate parameters can be specified
on the command line to configure. Run <b>./configure --help</b> to
get a full list of possible options. Standard installation related
options are shown below.</p>
<pre>
<tt>
Installation directories:
--prefix=PREFIX install architecture-independent files in PREFIX
[/usr/local]
--exec-prefix=EPREFIX install architecture-dependent files in EPREFIX
[PREFIX]
By default, `make install' will install all the files in
`/usr/local/bin', `/usr/local/lib' etc. You can specify
an installation prefix other than `/usr/local' using `--prefix',
for instance `--prefix=$HOME'.
For better control, use the options below.
Fine tuning of the installation directories:
--bindir=DIR user executables [EPREFIX/bin]
--sbindir=DIR system admin executables [EPREFIX/sbin]
--libexecdir=DIR program executables [EPREFIX/libexec]
--sysconfdir=DIR read-only single-machine data [PREFIX/etc]
--sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
--localstatedir=DIR modifiable single-machine data [PREFIX/var]
--libdir=DIR object code libraries [EPREFIX/lib]
--includedir=DIR C header files [PREFIX/include]
--oldincludedir=DIR C header files for non-gcc [/usr/include]
--datarootdir=DIR read-only arch.-independent data root [PREFIX/share]
--datadir=DIR read-only architecture-independent data [DATAROOTDIR]
--localedir=DIR locale-dependent data [DATAROOTDIR/locale]
--mandir=DIR man documentation [DATAROOTDIR/man]
--docdir=DIR documentation root [DATAROOTDIR/doc/tiff]
--htmldir=DIR html documentation [DOCDIR]
Program names:
--program-prefix=PREFIX prepend PREFIX to installed program names
--program-suffix=SUFFIX append SUFFIX to installed program names
--program-transform-name=PROGRAM run sed PROGRAM on installed program names
</tt>
</pre>
<a name="Packages" id="Packages"></a>
<hr width="65%" align="right">
<h3>Configuring Optional Packages/Support</h3>
The TIFF software comes with several packages that are installed
only as needed, or only if specifically configured at the time the
configure script is run. Packages can be configured via the
<b>configure</b> script commandline parameters.
<dl>
<dt><i>Static/Shared Objects Support</i></dt>
<dd><tt>--enable-shared[=PKGS] build shared
libraries [default=yes]<br>
--enable-static[=PKGS] build static
libraries [default=yes]</tt>
<p>These options control whether or not to configure the software
to build a shared and static binaries for the TIFF library. Use of
shared libraries can significantly reduce the disk space needed for
users of the TIFF software. If shared libraries are not used then
the code is statically linked into each application that uses it.
By default both types of binaries is configured.</p>
<p>
<tt>--enable-rpath Enable
runtime linker paths (-R libtool option)</tt></p>
<p>Add library directories (see other options below) to the TIFF
library run-time linker path.</p>
<p><tt>--enable-ld-version-script Enable linker version
script (default is disabled)</tt></p>
<p>Add shared library symbol versioning on ELF-based systems (e.g.
Linux and FreeBSD) which use the GNU linker. This is needed if
several major versions of libtiff might be loaded at once into the
same program.</p>
</dd>
<dt><i>JPEG Support</i></dt>
<dd><tt>--disable-jpeg disable IJG JPEG
library usage (required for JPEG compression, enabled by default)
--with-jpeg-include-dir=DIR location of IJG
JPEG library headers
--with-jpeg-lib-dir=DIR location of IJG JPEG
library binary)</tt></dd>
<dd>The <tt>JPEG</tt> package enables support for the handling of
TIFF images with JPEG-encoded data. Support for JPEG-encoded data
requires the Independent JPEG Group (IJG) <tt>libjpeg</tt>
distribution; this software is available at <a href=
"http://www.ijg.org/">http://www.ijg.org/</a>. <b>configure</b>
script automatically tries to search for a working IJG JPEG
installation. If it fails to find library, JPEG support will be
automatically disabled. If you want specify the exact paths to
library binary and headers, use above switches for that.</dd>
<dt><i>ZIP Support</i></dt>
<dd>The <tt>ZIP</tt> support enables support for the handling of
TIFF images with deflate-encoded data. Support for deflate-encoded
data requires the freely available <tt>zlib</tt> distribution
written by Jean-loup Gailly and Mark Adler; this software is
available at <a href=
"http://www.zlib.org/">http://www.zlib.org/</a>. If ZIP support is
enabled the <tt>DIRS_LIBINC</tt> and <tt>DIR_GZLIB</tt> parameters
should also be set (see below). By default this package is not
configured.</dd>
</dl>
<a name="Sample" id="Sample"></a>
<hr width="65%" align="right">
<a name="PC" id="PC"></a>
<h2>Building the Software under Windows 2000/XP/7/8/10 with nmake</h2>
With Microsoft Visual C++ installed, and properly configured for
commandline use (you will likely need to source VCVARS32.BAT in
AUTOEXEC.bAT or somewhere similar) you should be able to use the
provided <tt>makefile.vc</tt>.
<p>The source package is delivered using Unix line termination
conventions, which work with MSVC but do not work with Windows
'notepad'. If you use unzip from the <a href=
"http://www.info-zip.org/pub/infozip/">Info-Zip</a> package, you
can extract the files using Windows normal line termination
conventions with a command similar to:</p>
<pre>
unzip -aa -a tiff-4.0.5.zip
</pre>
<p>By default the nmake-based libtiff build does not depend on any
additional libraries. Normally libtiff should be built with at least
JPEG and ZIP support so that it can open JPEG and ZIP-compressed TIFF
files. In order to add additional libraries (e.g. libjpeg, zlib,
jbigkit), build those libraries according to their own particular
build instructions, and then edit 'nmake.opt' (using a capable
plain-text editor) to enable use of the libraries, including
specifying where the libraries are installed. It is also necessary to
edit libtiff/tiffconf.vc.h to enable the related configuration defines
(<em>JPEG_SUPPORT</em>, <em>OJPEG_SUPPORT</em>, <em>PIXARLOG_SUPPORT</em>,
<em>ZIP_SUPPORT</em>), or to disable features which are normally
included by default. Ignore the comment at the top of the
libtiff/tiffconf.vc.h file which says that it has no influence on the
build, because the statement is not true for Windows. Please note that
the nmake build copies tiffconf.vc.h to tiffconf.h, and copies
tif_config.vc.h to tif_config.h, overwriting any files which may be
present. Likewise, the 'nmake clean' step removes those files.</p>
<p>To build using the provided makefile.vc you may use:</p>
<pre>
C:\tiff-4.0.5> nmake /f makefile.vc clean
C:\tiff-4.0.5> nmake /f makefile.vc
or (the hard way)
C:\tiff-4.0.5> cd port
C:\tiff-4.0.5\port> nmake /f makefile.vc clean
C:\tiff-4.0.5\port> nmake /f makefile.vc
C:\tiff-4.0.5> cd ../libtiff
C:\tiff-4.0.5\libtiff> nmake /f makefile.vc clean
C:\tiff-4.0.5\libtiff> nmake /f makefile.vc
C:\tiff-4.0.5\libtiff> cd ..\tools
C:\tiff-4.0.5\tools> nmake /f makefile.vc clean
C:\tiff-4.0.5\tools> nmake /f makefile.vc
</pre>
<p>This will build the library
file <tt>libtiff\libtiff\libtiff.lib</tt>.</p>
<p>The makefile also builds a DLL (libtiff.dll) with an associated
import library (libtiff_i.lib). Any builds using libtiff will need to
include the LIBTIFF\LIBTIFF directory in the include path.</p>
<p>The <tt>libtiff\tools\makefile.vc</tt> should build .exe's for
all the standard TIFF tool programs.</p>
<hr>
<a name="VMS" id="VMS"></a>
<h2>Building the Software on a VMS System</h2>
The VMS port was done by Karsten Spang (<a href=
"mailto:krs@kampsax.dk">krs@kampsax.dk</a>), who also "sort of"
maintains it. The VMS specific files are not in the main
directories. Instead they are placed under
<tt>[.CONTRIB.VMS...]</tt> in the distribution tree. Installation:
It is assumed that you have unpacked the tar file into a VMS
directory tree, in this text called DISK:[TIFF].
<ol>
<li>Move the VMS specific files to their proper directories.
<pre>
$ SET DEFAULT DISK:[TIFF.CONTRIB.VMS]
$ RENAME [.LIBTIFF]*.* [-.-.LIBTIFF]
$ RENAME [.TOOLS]*.* [-.-.TOOLS]
</pre></li>
<li>Compile the library.
<pre>
$ SET DEFAULT DISK:[TIFF.LIBTIFF]
$ @MAKEVMS
</pre></li>
<li>Compile the tools.
<pre>
$ SET DEFAULT DISK:[TIFF.TOOLS]
$ @MAKEVMS
</pre></li>
<li>Define the programs.
<pre>
$ DEFINE TIFFSHR DISK:[TIFF.LIBTIFF]TIFFSHR
$ FAX2PS :==$DISK:[TIFF.TOOLS]FAX2PS
$ FAX2TIFF :==$DISK:[TIFF.TOOLS]FAX2TIFF
$ GIF2TIFF :==$DISK:[TIFF.TOOLS]GIF2TIFF
$ PAL2RGB :==$DISK:[TIFF.TOOLS]PAL2RGB
$ PPM2TIFF :==$DISK:[TIFF.TOOLS]PPM2TIFF
$ RAS2TIFF :==$DISK:[TIFF.TOOLS]RAS2TIFF
$ RGB2YCBCR :==$DISK:[TIFF.TOOLS]RGB2YCBCR
$ THUMBNAIL :==$DISK:[TIFF.TOOLS]THUMBNAIL
$ TIFF2BW :==$DISK:[TIFF.TOOLS]TIFF2BW
$ TIFF2PS :==$DISK:[TIFF.TOOLS]TIFF2PS
$ TIFFCMP :==$DISK:[TIFF.TOOLS]TIFFCMP
$ TIFFCP :==$DISK:[TIFF.TOOLS]TIFFCP
$ TIFFDITHER:==$DISK:[TIFF.TOOLS]TIFFDITHER
$ TIFFDUMP :==$DISK:[TIFF.TOOLS]TIFFDUMP
$ TIFFINFO :==$DISK:[TIFF.TOOLS]TIFFINFO
$ TIFFMEDIAN:==$DISK:[TIFF.TOOLS]TIFFMEDIAN
$ TIFFSPLIT :==$DISK:[TIFF.TOOLS]TIFFSPLIT
$ YCBCR :==$DISK:[TIFF.TOOLS]YCBCR
</pre></li>
</ol>
You will want to add these lines to your <tt>LOGIN.COM</tt> file,
after changing the name of the directory that you have used on your
machine.
<p>This release has been tested on OpenVMS/VAX 5.5-2, using VAX C
3.2. A previous release was tested under OpenVMS/AXP ?.? using DEC
C ?.?, it is believed that this release as well works on AXP. The
code contains some GNU C specific things. This does *not* imply,
however, that the VAX/GCC configuration has been tested, *it has
not*.</p>
<p>The command procedures (<tt>MAKEVMS.COM</tt>) for building the
library and tools, is believed to choose the correct options for
the VAX and AXP cases automatically.</p>
<p>On the AXP, IEEE floating point is used by default. If you want
VAX floating point, remove the <tt>/FLOAT=IEEE_FLOAT</tt>
qualifier, and change <tt>HAVE_IEEEFP=1</tt> to
<tt>HAVE_IEEEFP=0</tt> in the <tt>MAKEVMS.COM</tt> files in both
the <b>libtiff</b> and <b>tools</b> directories.</p>
<h3>Compiling your own program on a VMS system:</h3>
When compiling a source file in which you <tt>"#include
<tiffio.h>"</tt>, use the following command
<pre>
$ CC/INCLUDE=DISK:[TIFF.LIBTIFF]
</pre>
This ensures that the header file is found. On the AXP, also add
<tt>/FLOAT=IEEE_FLOAT</tt> (if used when building the library).
<h3>Linking your own program to the TIFF library on a VMS
system:</h3>
You can link to the library in two ways: Either using the shareable
library, or using the object library. On the VAX these
possibilities are:
<ol>
<li>Using the shareable TIFF library.
<pre>
$ LINK MY_PROGRAM,DISK:[TIFF.LIBTIFF]TIFF/OPTIONS,SYS$INPUT:/OPTIONS
SYS$SHARE:VAXCRTL/SHAREABLE
</pre></li>
<li>Using the TIFF object library.
<pre>
$ LINK MY_PROGRAM, -
DISK:[TIFF.LIBTIFF]TIFF/LIBRARY/INCLUDE=(TIF_FAX3SM,TIF_CODEC), -
SYS$INPUT:/OPTIONS
SYS$SHARE:VAXCRTL/SHAREABLE
</pre></li>
</ol>
On AXP (and possibly also using DEC C on VAX) the corresponding
commands are
<ol>
<li>Using the shareable TIFF library.
<pre>
$ LINK MY_PROGRAM,DISK:[TIFF.LIBTIFF]TIFF/OPTIONS
</pre></li>
<li>Using the TIFF object library.
<pre>
$ LINK MY_PROGRAM,DISK:[TIFF.LIBTIFF]TIFF/LIBRARY
</pre></li>
</ol>
Method 1 uses the shortest link time and smallest <tt>.EXE</tt>
files, but it requires that <tt>TIFFSHR</tt> is defined as above at
link time and <strong>at run time</strong>. Using the compilation
procedure above, the tools are linked in this way.
<p>Method 2 gives somewhat longer link time and larger
<tt>.EXE</tt> files, but does not require <tt>TIFFSHR</tt> to be
defined. This method is recommended if you want to run your program
on another machine, and for some reason don't want to have the
library on that machine. If you plan to have more than one program
(including the tools) on the machine, it is recommended that you
copy the library to the other machine and use method 1.</p>
<hr>
<a name="Other" id="Other"></a>
<h2>Building the Software on Other Systems</h2>
This section contains information that might be useful if you are
working on a non-UNIX system that is not directly supported. All
library-related files described below are located in the
<b>libtiff</b> directory.
<p>The library requires two files that are generated
<i>on-the-fly</i>. The file <b>tif_fax3sm.c</b> has the state
tables for the Group 3 and Group 4 decoders. This file is generated
by the <tt>mkg3states</tt> program on a UNIX system; for
example,</p>
<div style="margin-left: 2em">
<pre>
<tt>
cd libtiff
cc -o mkg3states mkg3states.c
rm -f tif_fax3sm.c
./mkg3states -c const tif_fax3sm.c
</tt>
</pre></div>
The <tt>-c</tt> option can be used to control whether or not the
resutling tables are generated with a <tt>const</tt> declaration.
The <tt>-s</tt> option can be used to specify a C storage class for
the table declarations. The <tt>-b</tt> option can be used to force
data values to be explicitly bracketed with ``{}'' (apparently
needed for some MS-Windows compilers); otherwise the structures are
emitted in as compact a format as possible. Consult the source code
for this program if you have questions.
<p>The second file required to build the library, <b>version.h</b>,
contains the version information returned by the
<tt>TIFFGetVersion</tt> routine. This file is built on most systems
using the <tt>mkversion</tt> program and the contents of the
<tt>VERSION</tt> and <tt>tiff.alpha</tt> files; for example,</p>
<div style="margin-left: 2em">
<pre>
cd libtiff
cc -o mkversion mkversion.c
rm -f version.h
./mkversion -v ../VERSION -a ../dist/tiff.alpha version.h
</pre></div>
<p>Otherwise, when building the library on a non-UNIX system be
sure to consult the files <b>tiffcomp.h</b> and <b>tiffconf.h</b>.
The former contains system compatibility definitions while the
latter is provided so that the software configuration can be
controlled on systems that do not support the make facility for
building the software.</p>
<p>Systems without a 32-bit compiler may not be able to handle some
of the codecs in the library; especially the Group 3 and 4 decoder.
If you encounter problems try disabling support for a particular
codec; consult the <a href=
"internals.html#Config">documentation</a>.</p>
<p>Programs in the tools directory are written to assume an ANSI C
compilation environment. There may be a few POSIX'isms as well. The
code in the <b>port</b> directory is provided to emulate routines
that may be missing on some systems. On UNIX systems the
<tt>configure</tt> script automatically figures out which routines
are not present on a system and enables the use of the equivalent
emulation routines from the <b>port</b> directory. It may be
necessary to manually do this work on a non-UNIX system. <a name=
"Testing" id="Testing"></a></p>
<hr>
<h2>Checking out the Software</h2>
<p>Assuming you have working versions of <tt>tiffgt</tt> and
<tt>tiffsv</tt>, you can just use them to view any of the sample
images available for testing (see the <a href="images.html">section
on obtaining the test images</a>). Otherwise, you can do a cursory
check of the library with the <tt>tiffcp</tt> and <tt>tiffcmp</tt>
programs. For example,</p>
<div style="margin-left: 2em">
<pre>
tiffcp -lzw cramps.tif x.tif
tiffcmp cramps.tif x.tif
</pre></div>
<p>(<tt>tiffcmp</tt> should be silent if the files compare
correctly). <a name="TOC" id="TOC"></a></p>
<hr>
<h2>Table of Contents</h2>
The following files makup the core library:
<pre>
libtiff/tiff.h TIFF spec definitions
libtiff/tiffcomp.h non-UNIX OS-compatibility definitions
libtiff/tiffconf.h non-UNIX configuration definitions
libtiff/tiffio.h public TIFF library definitions
libtiff/tiffiop.h private TIFF library definitions
libtiff/t4.h CCITT Group 3/4 code tables+definitions
libtiff/tif_dir.h private defs for TIFF directory handling
libtiff/tif_fax3.h CCITT Group 3/4-related definitions
libtiff/tif_predict.h private defs for Predictor tag support
libtiff/uvcode.h LogL/LogLuv codec-specific definitions
libtiff/version.h version string (generated by Makefile)
libtiff/tif_apple.c Apple-related OS support
libtiff/tif_atari.c Atari-related OS support
libtiff/tif_aux.c auxilary directory-related functions
libtiff/tif_close.c close an open TIFF file
libtiff/tif_codec.c configuration table of builtin codecs
libtiff/tif_compress.c compression scheme support
libtiff/tif_dir.c directory tag interface code
libtiff/tif_dirinfo.c directory known tag support code
libtiff/tif_dirread.c directory reading code
libtiff/tif_dirwrite.c directory writing code
libtiff/tif_dumpmode.c "no" compression codec
libtiff/tif_error.c library error handler
libtiff/tif_fax3.c CCITT Group 3 and 4 codec
libtiff/tif_fax3sm.c G3/G4 state tables (generated by mkg3states)
libtiff/tif_flush.c i/o and directory state flushing
libtiff/tif_getimage.c TIFFRGBAImage support
libtiff/tif_jpeg.c JPEG codec (interface to the IJG distribution)
libtiff/tif_luv.c SGI LogL/LogLuv codec
libtiff/tif_lzw.c LZW codec
libtiff/tif_msdos.c MSDOS-related OS support
libtiff/tif_next.c NeXT 2-bit scheme codec (decoding only)
libtiff/tif_open.c open and simply query code
libtiff/tif_packbits.c Packbits codec
libtiff/tif_pixarlog.c Pixar codec
libtiff/tif_predict.c Predictor tag support
libtiff/tif_print.c directory printing support
libtiff/tif_read.c image data reading support
libtiff/tif_strip.c some strip-related code
libtiff/tif_swab.c byte and bit swapping support
libtiff/tif_thunder.c Thunderscan codec (decoding only)
libtiff/tif_tile.c some tile-related code
libtiff/tif_unix.c UNIX-related OS support
libtiff/tif_version.c library version support
libtiff/tif_vms.c VMS-related OS support
libtiff/tif_warning.c library warning handler
libtiff/tif_win3.c Windows-3.1-related OS support
libtiff/tif_win32.c Win32 (95/98/NT) related OS support
libtiff/tif_write.c image data writing support
libtiff/tif_zip.c Deflate codec
libtiff/mkg3states.c program to generate G3/G4 decoder state tables
libtiff/mkspans.c program to generate black-white span tables
libtiff/mkversion.c program to generate libtiff/version.h.
</pre>
<hr>
Last updated: $Date: 2015-08-29 15:30:11 $
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