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  • Hash : ce33a312
    Author : Werner Lemberg
    Date : 2008-12-21T10:29:30

    FT_USE_MODULE declares things as: extern const FT_Module_Class (or similar for C++). However, the actual types of the variables being declared are often different, e.g., FT_Driver_ClassRec or FT_Renderer_Class. (Some are, indeed, FT_Module_Class.) This works with most C compilers (since those structs begin with an FT_Module_Class struct), but technically it's undefined behavior. To quote the ISO/IEC 9899:TC2 final committee draft, section 6.2.7 paragraph 2: All declarations that refer to the same object or function shall have compatible type; otherwise, the behavior is undefined. (And they are not compatible types.) Most C compilers don't reject (or even detect!) code which has this issue, but the GCC LTO development branch compiler does. (It outputs the types of the objects while generating .o files, along with a bunch of other information, then compares them when doing the final link-time code generation pass.) Patch from Savannah bug #25133. * src/base/ftinit.c (FT_USE_MODULE): Include variable type. * builds/amiga/include/freetype/config/ftmodule.h, include/freetype/config/ftmodule.h, */module.mk: Updated to declare pass correct types to FT_USE_MODULE.

  • README

  •   Special notes to Unix users
      ===========================
    
      Please  read  the file  `docs/UPGRADE.UNIX'.  It contains  important
      information regarding the installation  of FreeType on Unix systems,
      especially GNU based operating systems like GNU/Linux.
    
      FreeType 2's  library is called `libfreetype',  FreeType 1's library
      is called `libttf'.  They are *not* compatible!
    
    
      FreeType 2.3.7
      ==============
    
      Please   read   the  docs/CHANGES   file,   it  contains   IMPORTANT
      INFORMATION.
    
      Read the files `docs/INSTALL' for installation instructions.
    
      The FreeType 2 API reference is located in `docs/reference'; use the
      file   `ft2-doc.html'   as   the   top  entry   point.    Additional
      documentation is available as a separate package from our sites.  Go
      to
    
        http://download.savannah.gnu.org/releases/freetype/
    
      and download one of the following files.
    
        freetype-doc-2.3.7.tar.bz2
        freetype-doc-2.3.7.tar.gz
        ftdoc237.zip
    
    
      Bugs
      ====
    
      Please report bugs  by e-mail to `freetype-devel@nongnu.org'.  Don't
      forget to  send a  detailed explanation of  the problem --  there is
      nothing  worse than  receiving a  terse message  that only  says `it
      doesn't work'.
    
      Alternatively, you may submit a bug report at
    
        https://savannah.nongnu.org/bugs/?group=freetype
    
    
      Enjoy!
    
    
        The FreeType Team
    
    ----------------------------------------------------------------------
    
    Copyright 2006, 2007, 2008 by
    David Turner, Robert Wilhelm, and Werner Lemberg.
    
    This  file is  part of  the FreeType  project, and  may only  be used,
    modified,  and distributed  under the  terms of  the  FreeType project
    license,  LICENSE.TXT.  By  continuing to  use, modify,  or distribute
    this file you  indicate that you have read  the license and understand
    and accept it fully.
    
    
    --- end of README ---