Include removal gave problems with windows, ifdef some back in for windows only

source/blender/blenkernel/intern/customdata.c

@@ -63,6 +63,10 @@
 #include <math.h>
 #include <string.h>
 
+#ifdef WIN32
+#  include "BLI_alloca.h"
+#endif
+
 /* number of layers to add when growing a CustomData object */
 #define CUSTOMDATA_GROW 5
 

source/blender/blenkernel/intern/ipo.c

@@ -77,6 +77,10 @@
 
 #include "MEM_guardedalloc.h"
 
+#ifdef WIN32
+#  include "BLI_math_base.h"  /* M_PI */
+#endif
+
 /* *************************************************** */
 /* Old-Data Freeing Tools */