Macro conflict for M_PI_2 and M_SQRT1_2 with math.h

From:
Stephane Routelous <[email removed]>

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http://www.opencascade.org/org/forum/thread_12623/
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When using the _USE_MATH_DEFINES preprocessor definition, the
#define M_SQRT1_2 7.[revision removed]-1
#define M_PI_2 1.[revision removed]
definitions in Attachment 1 (HXX) are conflicting with the same ones from math.h

Could you please enclose the definitions in Attachment 1 (HXX) with #ifndef /
#endif ?

#ifndef M_SQRT1_2
#define M_SQRT1_2 7.[revision removed]-1
#endif

#ifndef M_PI_2
#define M_PI_2 1.[revision removed]
#endif

Thanks,

Stephane