metrowerks.note

tiff文件开发库

----------------------------------------------------
Build instructions for LIBTIFF - CodeWarrior (6.1):
----------------------------------------------------

Note: there is a bug in CW earlier than 6.1 which will generate
16-bit offset link errors for any projects using libtiff; you must
download the CodeWarrior 6.1 patch located at:

  ftp://ftp.metrowerks.com/pub/updates/metro-patches-61.hqx

unpack the archive, insert the files and recompile the libraries
using the AppleScript provided.


1. Make sure that the directory containing these files is under
   the "contrib" directory of the tiff folder; otherwise, some
   access path preferences will need to be updated.

2. The instructions below are for the 68k platform build. 
    A similar script can be put together for the PPC version,
    or you can just directly convert the projects. Be sure to
   use the native libraries as well. NOTE: if anyone cooks  
  up an equivalent script for PPC, send it to me and I'll include
  it with the rest of the package.

3.   Open the file Makefile.script with an AppleScript Editor
   and change the PATHNAME variable to point to your
   top-level TIFF directory

4. Run the Script. It will do the following things:
 
   4a. Prompt you for the current location of the CodeWarrior 68K
   program.

   4b. Create the source file "tif_fax3sm.c":

        i) Build the project CW project mkg3states.cw. It will
     produce a small program called mkg3states. Only a
     68k version is provided, since you only have to run
     this code once, and it only takes a few seconds.
     
        ii) Run the built mkg3states program: 
        
    The program will temporarily take over ALL of the CPU, so
    don't panic. After a few seconds it will produce a file called
    "tif_fax3sm.c".

  4c. Build the library project libtiff-68K.mw, producing library
   called libtiff-68K.

  4d. Build program project tiffinfo.mw; it will produce a
   program called tiffinfo, which can dump the tiff tags of
   a named file. Passing in no arguments will dump a help file
   for the program. It is unix-flavored, but hey, it works.

5  When the script finishes, you will have a usable libtiff-68K
   library, a passable "tiffinfo" program, and the projects used
   to build them. Note that to get tiffinfo to work I have put 
   an include file in the project that redefines main(), and
   then have a mac_main.c program that calls ccommand() first
   and passes that to the actual main code. A real mac app,
   of course, would never use this stuff at all...

 . The tiffinfo.mw project may be used as a template to build
   most of the other libtiff tools, or your own code. When
   modifying a copy of the project, you will most likely need
   to update the "Access Paths" directory if it is moved out of
   the contrib folder.
   
6. If you are going to create a project from scratch, be sure
   to set up the preferences with 
   
      4-byte ints
      8-byte doubles
      Far Code/Far Data
      Large Linking model
      
   and everything should work fine. If the console-style error
   reports bother you, you can always override the error and
   warning mechanism with TIFFSetErrorHandler to do something
   more Mac-like.

Questions, comments to Niles Ritter ([e-mail]).