[CMake] Building CMake on Digtal Unix

[Stuart.Herring at hpa.com.au]

Hi,

I've been trying to build CMake on Digital Unix (V4.0f), and have
encountered a couple of problems.
The first problem was that bootstrapping failed due to usleep() not
being defined.
I managed to get past that fairly easily by temporarily #defining
_XOPEN_SOURCE_EXTENDED for the duration of the <unistd.h> include in
SystemTools.cxx

The next problem however is turning out to be a little harder to get
around.
It appears that Digital Unix's libc doesn't have snprintf/vsnprintf,
which are used in quite a few places - mostly in source under the
Utilities and CTest directories.

I've tried both CMake 2.4.2 and CVS from last night.
> uname -a
OSF1 prodsyd4.nsw.hpa V4.0 1229 alpha
> gcc -v
Reading specs from /usr/local/lib/gcc-lib/alphaev6-dec-osf4.0f/3.3/specs
Configured with: ./configure --enable-sjlj-exceptions
--enable-languages=c,c++ --with-gc=simple
Thread model: single
gcc version 3.3

Any suggestions would be greatly appreciated.

Thanks,

Stuart Herring
R&D Development Engineer
HPA
www.hpa.com.au
stuart.herring at hpa.com.au
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