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| -rw-r--r-- | engines/sword25/math/vertex.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/engines/sword25/math/vertex.h b/engines/sword25/math/vertex.h index 87e4694d48..f9d9a0ff65 100644 --- a/engines/sword25/math/vertex.h +++ b/engines/sword25/math/vertex.h @@ -46,6 +46,21 @@ #include <math.h> #include "sword25/kernel/common.h" +#if defined(MACOSX) || defined(SOLARIS) || defined(__MINGW32__) +// Older versions of Mac OS X didn't supply a powf function, so using it +// will cause a binary incompatibility when trying to run a binary built +// on a newer OS X release on an olderr one. And Solaris 8 doesn't provide +// powf, floorf, fabsf etc. at all. +// Cross-compiled MinGW32 toolchains suffer from a cross-compile bug in +// libstdc++. math/stubs.o should be empty, but it comes with a symbol for +// powf, resulting in a linker error because of multiple definitions. +// Hence we re-define them here. The only potential drawback is that it +// might be a little bit slower this way. +#define powf(x,y) ((float)pow(x,y)) +#define floorf(x) ((float)floor(x)) +#define fabsf(x) ((float)fabs(x)) +#endif + namespace Lua { // Forward declarations |