Can't compile disphelper.c disphelper.c:680:23: error: lvalue required as left operand of assignment

[juancentro]

Hi, I get this build error when trying to compile a project that uses disphelper

mingw32-gcc.exe -Wall -fexceptions  -g     -c C:\Users\Juan\TestDisphelper\disphelper.c -o obj\Debug\disphelper.o
C:\Users\Juan\TestDisphelper\disphelper.c: In function 'ExtractArgument':
C:\Users\Juan\TestDisphelper\disphelper.c:680:7: warning: implicit declaration of function 'V_UI2REF' [-Wimplicit-function-declaration]
       V_UI2REF(pvArg) = va_arg(*marker, USHORT *);
       ^
C:\Users\Juan\TestDisphelper\disphelper.c:680:23: error: lvalue required as left operand of assignment
       V_UI2REF(pvArg) = va_arg(*marker, USHORT *);

I'm on mingw32-cc 4.8.1

[DrYak]

Means you're probably missing the definition of the "V_UI2REF" macros (i.e.: reference/pointer to an unsigned int that's 2 bytes long) in your oleauto.h file.

Wine defines it this way :

#define V_UI2REF(A)      V_UNION(A,puiVal)

You could add it to your oleauto.h file (remember to suggest a patch upstream) and/or steal the one from wine and/or add it to you own header file.