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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>The folks at Microsoft have a viable workaround to the
compiler crash seen when building the IB stack under the Vista/W2k8 WDK. There
is a problem in the WDK compiler when processing function pointers that have
the __ptr64 attribute that are in a structure. When doing a 32-bit checked
build, the compiler would crash with a C1001 error on some of the IB stack
source files.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>The workaround seems to be setting the /Os compiler option.
This enables one of the optimizations on the checked build. An easy way to
enable this is to set the environment variable MSC_OPTIMIZATION=/Os when
building the IB stack. Adding the MSC_OPTIMIZATION setting in the SOURCES files,
controlled by an !if for only checked builds, for only those projects that have
this compiler problem would be the minimal impact. The free build does crash
the compiler, neither does do the 64-bit builds.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>This compiler problem happens on the released <st1:place
w:st="on">Vista</st1:place> 6000 WDK and the latest 6001 W2K8 WDK. Long term,
Microsoft may fix the compiler, but for the immediate future, we will have to
use this workaround.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>There are a few other issues in the source tree under the
WDK but they all seem solvable with some minor fixes.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Jan Bottorff<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Windows Systems Architect<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
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