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Posted: **01 May 2007 12:04**

I'm trying to change the uuid of the activex control so that my modified version can coexist on the same system as the official vlc activex. But when I try to compile using cygwin I get the following error.

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midl -Oicf -error all -env win32 -tlb axvlc.tlb -iid axvlc_idl.c -h axvlc_
axvlc.idl
Microsoft (R) MIDL Compiler Version 5.01.0164
Copyright (c) Microsoft Corp 1991-1997. All rights reserved.
Processing .\axvlc.idl
midl : command line error MIDL1004 : cannot execute C preprocessor cl.exe
make[3]: *** [axvlc_idl.c] Error 236

The compilation works if I don't change the idl files. I've followed the readme and have written the following in cygwin

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export PATH=$PATH:"/cygdrive/c/Program/Microsoft Visual Studio/COMMON/MSDev98/Bin":"/cygdrive/c/Program/Microsoft Visual Studio/VC98/Bin"
export INCLUDE='C:\Program\Microsoft Visual Studio\VC98\Include'
export MIDL="midl"

Visual C++ 6.0 is installed at C:\Program\Microsoft Visual Studio

The uuid was generated using http://www.famkruithof.net/uuid/uuidgen

Please help.

Posted: **01 May 2007 12:36**

I found a solution.

I did it "manually" instead. Opened up windows command prompt and wrote:

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midl -Oicf -error all -env win32 -tlb axvlc.tlb -iid axvlc_idl.c -h axvlc_idl.h axvlc.idl

Then I just compiled it in cygwin again and it worked.

I'm a genius... ok maybe not.

The VideoLAN Forums

MIDL Compiler error [Solved]

MIDL Compiler error [Solved]