--- gforth/Attic/pow10.c	1995/11/07 18:06:56	1.2
+++ gforth/Attic/pow10.c	1996/10/13 19:56:23	1.3
@@ -24,11 +24,14 @@
 #define M_LN10      2.30258509299404568402
 #endif
 
+#ifndef _ANSI_MATH_H
 /* this should be defined by math.h; If it is not, the miranda
-   prototype would be wrong; Since we prefer compile-time errors to
-   run-time errors, it's declared here. */
+ *    prototype would be wrong; Since we prefer compile-time errors to
+ *    run-time errors, it's declared here. */
 extern double exp(double);
 
+#endif /* _ANSI_MATH_H */
+
 double pow10(double x)
 {
   return exp(x*M_LN10);