diff -r -U2 TeXmacs-1.99.6-src.orig/src/Graphics/Types/math_util.hpp TeXmacs-1.99.6-src/src/Graphics/Types/math_util.hpp
--- TeXmacs-1.99.6-src.orig/src/Graphics/Types/math_util.hpp	2017-12-22 03:27:43.000000000 +0700
+++ TeXmacs-1.99.6-src/src/Graphics/Types/math_util.hpp	2017-12-22 16:44:35.052378917 +0700
@@ -24,11 +24,4 @@
 inline int    sign (double x) { return x>0?1:x<0?-1:0; } 
 inline bool   fnull (double x, double approx) { return norm(x) <= approx; }
-#ifndef __SUNPRO_CC
-inline double pow (double x, int n) {
-  double r= 1.0;
-  while (n > 0) { r *= x; n--; }
-  return r; }
-#endif
-
 
 #endif // defined MATH_UTIL_H