National Instruments 320685D-01 ユーザーズマニュアル

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Chapter 3
Windows 95/NT Compiler/Linker Issues
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 National Instruments Corporation
3-17
LabWindows/CVI Programmer Reference Manual
Borland Static versus Dynamic C Libraries
When you link a Borland C/C++ project that contains object or static library files you create 
in LabWindows/CVI, it is a good idea to configure the Borland project to use the static version 
of the Borland C libraries. 
If you choose to use the dynamic C libraries, you must compile the LabWindows/CVI object 
modules with the 
_RTLDLL
 macro. You must define the 
_RTLDLL
 macro in your source code 
before including any of the Borland C header files.
Borland Incremental Linker
You cannot use your LabWindows/CVI object or static library files in the Borland C compiler 
if you choose to use the incremental linker. Turn off the Use Incremental Linker option.
Borland C++ Builder
You cannot use your LabWindows/CVI object or static library files in the 
Borland C++ Builder.
Watcom Pull-in References
The Watcom linker does not automatically link the startup code into your application or DLL. 
Instead, it requires the module that contains 
main
WinMain
, or 
DllMain
 to reference a 
special symbol that the appropriate startup code module resolves. The Watcom compiler 
automatically generates a reference to the special symbol into any module that contains 
main
WinMain
, or 
DllMain
. This symbol is 
__DLLstart_
,  
_wstart2_
, or 
_cstart_
depending on whether the project is for a DLL, Windows application, or console application, 
respectively. Object modules compiled in LabWindows/CVI do not contain such references. 
LabWindows/CVI cannot generate the correct reference because it makes no distinction 
between console and non-console applications.
You must include the symbol reference in your object file explicitly. For example, if your 
module contains the 
main
 function, you can generate the correct symbol reference by adding 
the following to the source code for the module:
extern int _cstart_;
void *dummy = &_cstart_;
00ProRef.book : 06chap03.fm  Page 17  Monday, March 9, 1998  3:23 PM