shithub: lu9-lua

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math: log2 is also missing from Plan 9 libc

--- a/lmathlib.c

+++ b/lmathlib.c

@@ -173,7 +173,7 @@

     res = l_mathop(log)(x);

   else {

     lua_Number base = luaL_checknumber(L, 2);

-#if !defined(LUA_USE_C89)

+#if !defined(LUA_USE_C89) && !defined(LUA_USE_PLAN9)

     if (base == l_mathop(2.0))

       res = l_mathop(log2)(x); else

 #endif