PRB: L2029: Unresolved External ___aDBswpchk with GRAPHICS.LIB

Last reviewed: July 18, 1995
Article ID: Q59421

The information in this article applies to:

Microsoft FORTRAN for OS/2, versions 5.0 and 5.1

SYMPTOMS

Linking with GRAPHICS.LIB in OS/2 may give the following error message:

   d:\lib\GRAPHICS.LIB(..\gr\qeswap.asm) : error L2029 :
     '___aDBswpchk' : unresolved external

CAUSE

This is because GRAPHICS.LIB is designed for MS-DOS and is being linked with a protected-mode FORTRAN library, which does not include the external references required by GRAPHICS.LIB.

RESOLUTION

Link with the real-mode library to correct the problem.

MORE INFORMATION

For example, the following sample programs included with FORTRAN produce this error if linked under OS/2:

   MAGNIFY.FOR
   COLOR.FOR
   TEXT.FOR
   ANIMATE.FOR
   EGA.FOR

Additional reference words; 5.00 5.10

KBCategory: kbprg kberrmsg kbprb
KBSubcategory: FORTLngIss

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Last reviewed: July 18, 1995
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