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Q29843: C 5.10 MTDYNA.DOC: Creating an MTDYNA Library

Article: Q29843
Product(s): See article
Version(s): 5.10   | 5.10
Operating System(s): MS-DOS | OS/2
Keyword(s): ENDUSER | | mspl13_c
Last Modified: 15-JAN-1991

The following information is from "Section 5: Creating Dynamic-Link
Libraries" of the Microsoft C version 5.10 MTDYNA.DOC file.

5.2.2   Creating a Multiple-Thread Dynamic-Link Library

The process of creating a multiple-thread dynamic-link library is
outlined below. The process of creating a multiple-thread dynamic-link
library is also contained in the file CDLLOBJS.CMD.

1. Create a definition file that specifies the exports from the C
   run-time library for the dynamic-link library. The file
   CDLLOBJS.DEF, which is included in this release, is a sample
   definition file that includes all of the C run-time functions
   currently supported.

2. Link the special start-up file CRTLIB.OBJ with CDLLOBJS.LIB,
   DOSCALLS.LIB, and the definition file (CDLLOBJS.DEF) from step 1.
   This creates a customized C run-time dynamic-link library file
   (named CRTLIB.DLL). The following files are linked together:

      crtlib.obj     Start-up code for library files
      cdllobjs.lib   C run-time library objects
      doscalls.lib   OS/2 support library
      cdllobjs.def   Definition module from step 1
      crtlib.dll     Output from LINK

The command to accomplish this is shown below:

link crtlib.obj,crtlib.dll/noi,,cdllobjs.lib doscalls.lib/nod/noe,cdllobjs.de

3. Run IMPLIB on the definition file from step 1 to create a
   customized library file (CRTLIB.LIB) containing the exported
   functions. The command is shown below:

      implib crtlib.lib cdllobjs.def

4. Use the Microsoft Library Manager (LIB) to append CDLLSUPP.LIB to
   the customized library created in step 3. The file CDLLSUP.LIB
   contains a few small routines that cannot be dynamically linked
   because they are called near. The LIB program automatically creates
   a back-up file (with a .BAK extension), which can be deleted. The
   command for this step is shown below:

      lib crtlib.lib+cdllsupp.lib;

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