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Erik de Castro Lopo authored
MSVS does defined the M_LN2 constant in <math.h> but only makes it visible if _USE_MATH_DEFINES is defined. Patch-from: lvqcl <lvqcl.mail@gmail.com>
c532d34c
MSVS does defined the M_LN2 constant in <math.h> but only makes it visible if _USE_MATH_DEFINES is defined. Patch-from: lvqcl <lvqcl.mail@gmail.com>