Q37778: Emulator Math Operations in My DLL that Uses LLIBCDLL

Article: Q37778
Product(s): See article
Version(s): 5.10   | 5.10
Operating System(s): MS-DOS | OS/2
Keyword(s): ENDUSER | | mspl13_c
Last Modified: 14-NOV-1988

Question:

I am using LLIBCDLL.LIB for my DLL. This library is supposed to use
the alternate math package; however, when I compile and link, it
appears to get emulator instructions in the code and my DLL does not
act correctly. Where are these emulator instructions coming from, and
how do I get rid of them?

Response:

Most likely the problem is that you are not using the /FPa switch on
the compile line. You need this switch or the compiler assumes the
emulator math package (default) and puts emulator math commands in
your code. When this emulator math code is linked with LLIBCDLL.LIB,
which uses alternate math, it will not work correctly.

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