v3.4beta031 releasev3.4beta031

3 files changed, 171 insertions, 10 deletions

diff --git a/html/build.html b/html/build.html
index 51ebb5d3..6cefc72a 100644
--- a/html/build.html
+++ b/html/build.html
@@ -107,10 +107,6 @@ This second scheme is useful for:
   the distribution on CD-ROM)
 </UL>
 
-Beware that if you choose to use the second scheme for configuring
-the software you must not use an absolute pathname when you run configure
-(i.e. a pathname that begins with ``/'').
-
 <A NAME="ConfigFiles"><P><HR WIDTH=65% ALIGN=right><H3>Configuration Files</H3></A>
 
 The configuration process is critical to the proper compilation,
@@ -418,6 +414,56 @@ Creating port/install.sh from ../tiff-v3.4beta015/port/install.sh.in
 Done.
 </TT></PRE></UL>
 
+<A NAME=DSOSupport><P><HR><H3>Shared Library Support</H3></A>
+
+It is desirable to make the TIFF library be a shared object
+on systems that have support for shared libraries.
+Unfortunately the rules to use to build a shared library
+vary between operating systems and even compilers.
+The distributed software includes support for building a shared
+version of the library on a number of different systems.
+This support is split between rules in the file
+<B>libtiff/Makefile.in</B> that construct the shared library
+and checks done by the <TT>configure</TT> script to verify that
+the expected rules are supported by compilation tools for 
+the target system.
+
+<P>
+To add new support for building a shared library both these files
+must be updated.
+In the configure script search for the section where the autoconfiguration
+setting of the <TT>DSO</TT> parameter is handled and
+add a new case for the target system that sets the
+<TT>DSOSUF</TT>,
+<TT>DSOLD</TT>,
+<TT>DSOOPTS</TT>,
+and
+<TT>LIBCOPTS</TT>
+options as appropriate for the system.
+<TT>DSOSUF</TT> specifies the filename suffix used for the shared
+library (e.g. ``.so'' for Dynamic Shared Objects on most SVR4-based
+systems).
+<TT>DSOLD</TT> specifies the program to use to build the shared library
+from a compiled object file; typically ``${LD}'' though on some systems
+it is better to use the C compiler directly so system-dependent options and
+libraries are automatically supplied.
+<TT>DSOOPTS</TT> are options that must be specified to <TT>DSOLD</TT>
+when building the shared library.
+<TT>LIBCOPTS</TT> are options to pass to the C compiler when constructing
+a relocatable object file to include in a shared library; e.g. ``-K PIC''
+on a Sun system.
+The <TT>DSO</TT> parameter must also be set to a unique label that identifies
+the target system and compilation tools.
+This label is used to select
+a target in <B>libtiff/Makefile.in</B> to do the actual work in building
+the shared library.
+Finally, to complete support for the shared library added the appropriate
+rules to <B>libtiff/Makefile.in</B> under the target specified in the
+<TT>configure</TT> script.
+
+
+
+
 <A NAME="Parameters"><P><HR WIDTH=65% ALIGN=right><H3>Configuration Parameters</H3></A>
 
 This section gives a brief description of the less obvious
@@ -475,9 +521,21 @@ the directories where the associated include files are located.</TD>
 </TR>
 
 <TR>
-<TD VALIGN=top><TT>DSOOPTS</TT></TD>
-<TD>When DSO's are built, the options to specify to <TT>CC</TT>
-to create a DSO.</TD>
+<TD VALIGN=top><TT>DIST_ALPHA</TT></TD>
+<TD>The alpha version number for the distribution; e.g. if this
+is version 3.4beta031 then the the major number is 31.</TD>
+</TR>
+
+<TR>
+<TD VALIGN=top><TT>DIST_MAJOR</TT></TD>
+<TD>The major version number for the distribution; e.g. if this
+is version 3.4beta031 then the the major number is 3.</TD>
+</TR>
+
+<TR>
+<TD VALIGN=top><TT>DIST_MINOR</TT></TD>
+<TD>The minor version number for the distribution; e.g. if this
+is version 3.4beta031 then the the major number is 4.</TD>
 </TR>
 
 <TR>
@@ -487,6 +545,16 @@ If this is set to <TT>"a"</TT> then  statically linked archives are used.</TD>
 </TR>
 
 <TR>
+<TD VALIGN=top><TT>DSOSUF_VERSION</TT></TD>
+<TD>When DSO's are built, a version-specific filename suffix for a DSO.
+If this is set to something other than the value of <TT>DSO</TT> then
+the file <B>libtiff.<TT>DSOSUF_VERSION</TT></B> will be installed and
+a link to it named <B>libtiff.<TT>DSOSUF</TT></B> will automatically
+be created.  (Note that this means that rule for building the target
+DSO must generate a file named <B>libtiff.<TT>DSOSUF_VERSION</TT></B>.)</TD>
+</TR>
+
+<TR>
 <TD VALIGN=top><TT>ENVOPTS</TT></TD>
 <TD>Options to pass to <TT>CC</TT> to force ANSI C compilation.</TD>
 </TR>
@@ -1037,7 +1105,7 @@ libtiff/mkversion.c		program to generate libtiff/version.h.
 
 <ADDRESS>
 <A HREF="sam.html">Sam Leffler</A> / <A HREF="mailto:sam@engr.sgi.com">sam@engr.sgi.com</A>.
-Last updated: $Date: 1996/02/09 22:08:41 $
+Last updated: $Date: 1996/03/18 22:21:04 $
 </ADDRESS>
 
 </BODY>
diff --git a/html/index.html b/html/index.html
index 86de3779..c35ddf6c 100644
--- a/html/index.html
+++ b/html/index.html
@@ -12,7 +12,7 @@ TIFF Software
 </H1>
 
 <B>Latest Release</B>: <I>None</I><BR>
-<B>Latest Software</B>: <A HREF="v3.4beta029.html">v3.4beta029</A><BR>
+<B>Latest Software</B>: <A HREF="v3.4beta031.html">v3.4beta031</A><BR>
 <B>Master FTP Site</B>: <A HREF="ftp://ftp.sgi.com/graphics/tiff">ftp.sgi.com (192.48.153.1), directory graphics/tiff</A><BR>
 <B>Home Page</B>: <A HREF="http://www-mipl.jpl.nasa.gov/~ndr/tiff/">
   http://www-mipl.jpl.nasa.gov/~ndr/tiff/</A> <BR>
@@ -81,7 +81,7 @@ the master FTP site listed above.
 
 <ADDRESS>
 <A HREF="sam.html">Sam Leffler</A> / <A HREF="mailto:sam@engr.sgi.com">sam@engr.sgi.com</A>.
-Last updated: $Date: 1996/02/09 21:28:38 $
+Last updated: $Date: 1996/03/18 22:21:19 $
 </ADDRESS>
 
 </BODY>
diff --git a/html/v3.4beta031.html b/html/v3.4beta031.html
new file mode 100644
index 00000000..032b3b5b
--- /dev/null
+++ b/html/v3.4beta031.html
@@ -0,0 +1,93 @@
+<HTML>
+<HEAD>
+<TITLE>
+Changes in TIFF v3.4beta031
+</TITLE>
+</HEAD>
+
+<BODY>
+
+<BASEFONT SIZE=4>
+<B><FONT SIZE=+3>T</FONT>IFF <FONT SIZE=+2>C</FONT>HANGE <FONT SIZE=+2>I</FONT>NFORMATION</B>
+<BASEFONT SIZE=3>
+
+<UL>
+<HR SIZE=4 WIDTH=65% ALIGN=left>
+<B>Current Version</B>: v3.4beta031<BR>
+<B>Previous Version</B>: <A HREF=v3.4beta029.html>v3.4beta029</A><BR>
+<B>Master FTP Site</B>: <A HREF="ftp://ftp.sgi.com/graphics/tiff">ftp.sgi.com (192.48.153.1), directory graphics/tiff</A><BR>
+<HR SIZE=4 WIDTH=65% ALIGN=left>
+</UL>
+
+<P>
+This document describes the changes made to the software between the
+<I>previous</I> and <I>current</I> versions (see above).
+If you don't find something listed here, then it was not done in this
+timeframe, or it was not considered important enough to be mentioned.
+The following information is located here:
+<UL>
+<LI><A HREF="#configure">Changes in the software configuration</A>
+<LI><A HREF="#libtiff">Changes in libtiff</A>
+<LI><A HREF="#man">Changes in the manual pages</A>
+</UL>
+
+<P><HR WIDTH=65% ALIGN=right>
+
+<A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A>
+
+<UL>
+<LI><B>configure</B> now captures significantly more information
+   in the <B>config.log</B> file and provides more information when
+   it is unable to setup a configuration
+<LI>support was added for building shared libraries on more systems:
+   AIX, HPUX, Solaris, and Linux.
+<LI>a new configuration parameter <TT>LIBCOPTS</TT> was added for
+   passing arguments to the C compiler to use when building only
+   the library; this is part of the enhanced support for building
+   shared libraries
+<LI>include files for optional packages that reside in <B>/usr/include</B>
+   are now handled correctly
+<LI>build trees may now be configured using either relative or absolute
+   pathnames to the source distribution
+<LI>several new configuration parameters were added, mainly for building
+   shared libraries: <TT>DIST_MAJOR</TT>, <TT>DIST_MINOR</TT>, 
+   <TT>DIST_ALPHA</TT>, and <TT>DSOSUF_VERSION</TT>
+</UL>
+
+<P><HR WIDTH=65% ALIGN=right>
+
+<A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A>
+
+<UL>
+<LI>the Deflate support has been revised: it requires version 0.99 of
+   the zlib software distribution, <B>the output format has changed and
+   is incompatible with previous versions of this library</B> (each
+   strip now includes a header read and written by the zlib library)
+<LI>the codec name printed by the TIFFPrintDirectory routine is now
+   taken from the codec table instead of from a builtin table; this means
+   that application-defined codecs are handled correctly
+<LI>a new symbol was added that contains the library version number;
+   this can be used to do a compile-time compatibility check of the
+   library version
+</UL>
+
+<P><HR WIDTH=65% ALIGN=right>
+
+<A NAME="man"><B><FONT SIZE=+3>C</FONT>HANGES IN THE MANUAL PAGES:</B></A>
+
+<UL>
+<LI>the creation and installation of manual pages was redone; it now
+    implements the documented ``configuration scheme''
+</UL>
+
+<A HREF="index.html"><IMG SRC="images/back.gif"></A> TIFF home page.<BR>
+
+<HR>
+
+<ADDRESS>
+<A HREF="sam.html">Sam Leffler</A> / <A HREF="mailto:sam@engr.sgi.com">sam@engr.sgi.com</A>
+Last updated $Date: 1996/03/18 22:05:56 $.
+</ADDRESS>
+
+</BODY>
+</HTML>