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Message-Id:	<201209231643.q8NGh7Do002641@delorie.com>
From:	Juan Manuel Guerrero <juan DOT guerrero AT gmx DOT de>
To:	djgpp-announce AT delorie DOT com
Subject:	ANNOUNCE: release 2 of the DJGPP port of GNU dbm 1.10 uploaded.
Date:	Sun, 23 Sep 2012 18:37:09 +0200

This is release 2 of the port of GNU dbm 1.10 to MSDOS/DJGPP.


  GNU dbm (gdbm) is a set of database routines that use extendible hashing
  and works similar to the standard UNIX dbm routines.  The library provides
  also an optional compatibility layer for UNIX-like dbm and ndbm calls.
  These routines are provided to a programmer needing to create and manipulate
  a hashed database. gdbm is *NOT* a complete database package for an end user.


  DJGPP specific changes.
  =======================

  Only minimal changes have been done compared with the previous version of
  this port.  The only reason is that it makes it easier to me to use this
  library to port other GNU software.  I have removed the previous release
  of this port anyway.

  The port version compiled with djdev204 will offer file locking support if
  the used OS provides the locking capability.  The port version compiled with
  djdev203 will never provide it no matter if the used OS offers the necessary
  file locking capability or not.  To get that port version working, the calls
  to fcntl() have been replaced by macros that always return success.  Thus the
  djdev203 version will never try to  lock data base files during operation.
  All other changes concern DOS specific issues like the reading and writing in
  binary mode, the handling of mixed slashes and backslashes in paths, the
  closing of source and  destination files before renaming them and the correct
  initialization of the hash table directory for a new data base files.  This
  initialization is very dependent on the st_blksize value returned by fstat().
  This value must always be an integral multiple of 512 or the initialization
  will fail and no new data base file will be created.

  The dbm and ndbm specific functions have been moved into a separate library.
  This means that there are two libraries:
    - libgdbm.a containing all gdbm specific functions and
    - libgdbm_compat.a containing all dbm specific functions

  If you need to compile an application using the old unix dbm functions you
  will have to put the compat lib before the gdbm lib like this:
    gcc application.c -lgdbm_compat -lgdbm

  Now you will have access to the dbm compatibility functions.  Please note,
  that these compatibility functions are mapped to the equivalent gdbm functions
  so you must link both libraries in the order shown in the example above.

  The port does neither support mmap() for I/O operations nor the close-on-exec
  flag in gdbm_open (GDBM_CLOEXEC).

  Apart from the standard config.bat options like nls, cache and no-dep, the
  following option flags can be selected to configure and build the sources:

    compat or no-compat, if not specified, "compat" is the default.
      Build and install libgdbm_compat, a compatibility layer which provides
      UNIX-like dbm and ndbm interfaces.

    export or no-export, if not specified, "export" is the default.
      Build and install gdbmexport with the specified gdbm 1.8 library.
      If this option is specified, the configure script will get
        --with-gdbm183-library=-lgdbm
      passed as option and GDBM183_LIBDIR and GDBM183_INCLUDEDIR will be
      set to /dev/env/DJDIR/lib and /dev/env/DJDIR/include repectively.
      This means that you must have gdbm183b installed before you can
      build gdbmexport.exe.  gdbmexport.exe will be linked with gdbm183b.


  The source package is now distributed configured for both DJGPP 2.03 and
  DJGPP 2.04.  In the top srcdir there is be a "_build.203" directory and a
  "_build.204" directory.

  It may be possible to configure and compile the sources on plain DOS (no LFN
  support) but I have not tried it.


  Please read the docs to become familiar with the products.




  The port has been compiled using stock djdev203 (patchlevel 2) and consists
  of the usual three packages that can be downloaded from ftp.delorie.com and
  mirrors as (timestamp 2012-09-08):

    GNU dbm 1.10 binaries, headers, libraries, info and man
    format documentation:
    ftp://ftp.delorie.com/pub/djgpp/current/v2gnu/gdbm110br2.zip

    GNU dbm 1.10 dvi, html, pdf and ps format documentation:
    ftp://ftp.delorie.com/pub/djgpp/current/v2gnu/gdbm110dr2.zip

    GNU dbm 1.10 source:
    ftp://ftp.delorie.com/pub/djgpp/current/v2gnu/gdbm110sr2.zip


  The binaries have been produced a second time using the stock version of
  djdev204 beta library.  This package is available at ftp.delorie.com and
  mirrors as (timestamp 2012-09-08):

    GNU dbm 1.10 binaries, headers, libraries, info and man
    format documentation:
    ftp://ftp.delorie.com/pub/djgpp/current/v2gnu/gdbm110br2.zip


  Send gdbm specific bug reports to <bug-gdbm AT gnu DOT org>.
  Send suggestions and bug reports concerning the DJGPP port to
  comp.os.msdos.djgpp or <djgpp AT delorie DOT com>.



Enjoy.

        Guerrero, Juan Manuel <juan DOT guerrero AT gmx DOT de>

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