PRB: L2029: Unresolved External ___aDBswpchk with GRAPHICS.LIB (59421)


The information in this article applies to:

  • Microsoft FORTRAN compiler for OS/2 5.0
  • Microsoft FORTRAN compiler for OS/2 5.1
This article was previously published under Q59421

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

Modification Type:MajorLast Reviewed:10/24/2003
Keywords:KB59421
©2003 Microsoft Corporation. All rights reserved.