I'm seeing these error messages interspersed with the normal output of the Boost build's configuration checks:

Performing configuration checks - x86 : yes has_icu_test.cpp libs\regex\build\has_icu_test.cpp(12) : fatal error C1083: Cannot open include file: 'unicode/uversion.h': No such file or directory - has_icu builds : no warning: Graph library does not contain MPI-based parallel components. note: to enable them, add "using mpi ;" to your user-config.jam has_iconv.cpp libs\locale\src\..\build\has_iconv.cpp(8) : fatal error C1083: Cannot open include file: 'iconv.h': No such file or directory - iconv (libc) : no has_iconv.cpp libs\locale\src\..\build\has_iconv.cpp(8) : fatal error C1083: Cannot open include file: 'iconv.h': No such file or directory - iconv (separate) : no has_icu_test.cpp libs\locale\src\..\build\has_icu_test.cpp(12) : fatal error C1083: Cannot open include file: 'unicode/uversion.h': No such file or directory - icu : no has_icu_test.cpp libs\locale\src\..\build\has_icu_test.cpp(12) : fatal error C1083: Cannot open include file: 'unicode/uversion.h': No such file or directory - icu (lib64) : no has_gcc_visibility.cpp libs\math\config\has_gcc_visibility.cpp(7) : fatal error C1189: #error : "This is a GCC specific test case". - gcc visibility : no - long double support : yes

I don't recall seeing these when building Boost previously (using the same compiler, Visual C++ 2008); though it's possible I'm misremembering and they're just sticking out more now. What I have started doing differently is that I'm now calling b2 from a CMake script (via execute_process); but if that's what's triggering this, I don't understand how. Has anyone here seen this before? How might these error messages be suppressed? -- Braden McDaniel braden@endoframe.com