PRB: L2029: Unresolved External ___aDBswpchk with GRAPHICS.LIB

ID: Q59421

The information in this article applies to:

Microsoft FORTRAN for OS/2, versions 5.0, 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 query words: 5.00 5.10

Keywords :
Version : :5.0,5.1
Platform :
Issue type :