Q61057: C6 /Gh Switch for Windows 2.x and C 5.10 Library Compatability

Article: Q61057
Product(s): See article
Version(s): 6.00
Operating System(s): MS-DOS
Keyword(s): ENDUSER | | mspl13_c
Last Modified: 15-MAY-1990

The Microsoft C version 6.00 Compiler option /Gh facilitates the use
of C version 5.10 libraries with version 6.00 by replacing the C 6.00
internal helper routine names with the earlier C 5.10 helper routine
names. The /Gh option also allows building Windows Versions 2.x
applications.

Note: When using any C 5.10 libraries, the C 5.10 header files should
also be used.

Most C 5.10-compatible libraries can be used without using the /Gh
option. This feature exists only in version 6.00 of the compiler and
will be phased out in future versions.

The following are common situations where the /Gh option might be
used:

1. Writing Windows 2.x applications because the Window 2.x libraries
   are used in place of the standard run-time libraries and they are
   created from the C 5.10 libraries.

2. Use of any library where the helper functions have been replaced.

3. Use of customized run-time libraries.

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