Article: Q64437
Product(s): See article
Version(s): 6.00 6.00a | 6.00 6.00a
Operating System(s): MS-DOS | OS/2
Keyword(s): ENDUSER | docerr | mspl13_c
Last Modified: 19-JAN-1991
On Page 412 of the "Advanced Programming Techniques" manual that
shipped with C version 6.00 and 6.00a, there are examples of compile
and link lines for building a program that calls a DLL version of the
C run-time library. The LINK command-line fails to include the /NOI
option, which is necessary for the program to load properly.
The linker can resolve calls to the run-time DLL without /NOI because
the import library contains the function names needed, but then the
linker will write out the function names to the .EXE with the wrong
case. For example, if a program calls printf() and it is linked
without /NOI, it will have _PRINTF written to the .EXE. The loader
will then look for _PRINTF in the DLL, while the actual function in
the DLL is _printf.
As a result, everything seems to compile and link correctly, but when
you try to run the program, you will get a SYS2070 error: The system
could not demand load the application segment.
If you build from within the Programmer's WorkBench (PWB), the /NOI is
inserted automatically and everything works correctly.