math.h file in MS VC++ _does_ have M_LN2 constant but it requires _USE_MATH_DEFINES:
--- a\src\libFLAC\fixed.c 2013-08-13 13:30:24.000000000 +0400 +++ b\src\libFLAC\fixed.c 2013-08-14 10:14:07.873648300 +0400 @@ -34,6 +34,9 @@ # include <config.h> #endif +#if defined(_MSC_VER) +#define _USE_MATH_DEFINES +#endif #include <math.h> #include <string.h> #include "private/bitmath.h" @@ -42,7 +45,6 @@ #include "FLAC/assert.h" #ifndef M_LN2 -/* math.h in VC++ doesn't seem to have this (how Microsoft is that?) */ #define M_LN2 0.69314718055994530942 #endif --- a\src\libFLAC\lpc.c 2013-08-13 13:30:24.000000000 +0400 +++ b\src\libFLAC\lpc.c 2013-08-06 19:17:00.765482100 +0400 @@ -34,6 +34,9 @@ # include <config.h> #endif +#if defined(_MSC_VER) +#define _USE_MATH_DEFINES +#endif #include <math.h> #include "FLAC/assert.h" @@ -52,7 +55,6 @@ #ifndef FLAC__INTEGER_ONLY_LIBRARY #ifndef M_LN2 -/* math.h in VC++ doesn't seem to have this (how Microsoft is that?) */ #define M_LN2 0.69314718055994530942 #endif _______________________________________________ flac-dev mailing list flac-dev@xiph.org http://lists.xiph.org/mailman/listinfo/flac-dev
