diff --git a/modules/src/flt_arith/flt_arith.h b/modules/src/flt_arith/flt_arith.h
index bd6ecb157..964c19580 100644
--- a/modules/src/flt_arith/flt_arith.h
+++ b/modules/src/flt_arith/flt_arith.h
@@ -7,8 +7,6 @@
 #ifndef __FLT_INCLUDED__
 #define __FLT_INCLUDED__
 
-#include "ansi.h"
-
 #ifndef arith
 #define arith long
 #endif
@@ -33,17 +31,17 @@ extern int	flt_status;
 
 #define FLT_STRLEN	32	/* max length of result of flt_flt2str() */
 
-_PROTOTYPE(void flt_add, (flt_arith *, flt_arith *, flt_arith *));
-_PROTOTYPE(void flt_sub, (flt_arith *, flt_arith *, flt_arith *));
-_PROTOTYPE(void flt_mul, (flt_arith *, flt_arith *, flt_arith *));
-_PROTOTYPE(void flt_div, (flt_arith *, flt_arith *, flt_arith *));
-_PROTOTYPE(void flt_modf, (flt_arith *, flt_arith *, flt_arith *));
-_PROTOTYPE(int flt_cmp, (flt_arith *, flt_arith *));
-_PROTOTYPE(void flt_str2flt, (char *, flt_arith *));
-_PROTOTYPE(void flt_flt2str, (flt_arith *, char *, int));
-_PROTOTYPE(void flt_arith2flt, (arith, flt_arith *, int));
-_PROTOTYPE(arith flt_flt2arith, (flt_arith *, int));
-_PROTOTYPE(void flt_b64_sft, (struct flt_mantissa *, int));
-_PROTOTYPE(void flt_umin, (flt_arith *));
+void flt_add(flt_arith *, flt_arith *, flt_arith *);
+void flt_sub(flt_arith *, flt_arith *, flt_arith *);
+void flt_mul(flt_arith *, flt_arith *, flt_arith *);
+void flt_div(flt_arith *, flt_arith *, flt_arith *);
+void flt_modf(flt_arith *, flt_arith *, flt_arith *);
+int flt_cmp(flt_arith *, flt_arith *);
+void flt_str2flt(char *, flt_arith *);
+void flt_flt2str(flt_arith *, char *, int);
+void flt_arith2flt(arith, flt_arith *, int);
+arith flt_flt2arith(flt_arith *, int);
+void flt_b64_sft(struct flt_mantissa *, int);
+void flt_umin(flt_arith *);
 
 #endif /* __FLT_INCLUDED__ */
diff --git a/modules/src/flt_arith/flt_misc.h b/modules/src/flt_arith/flt_misc.h
index ec850697f..c5cf5a7cf 100644
--- a/modules/src/flt_arith/flt_misc.h
+++ b/modules/src/flt_arith/flt_misc.h
@@ -21,8 +21,8 @@
 #define flt_b64_add	_flt_64add
 #define flt_split	_flt_split
 
-_PROTOTYPE(int ucmp, (long, long));
-_PROTOTYPE(void flt_nrm, (flt_arith *));
-_PROTOTYPE(void flt_chk, (flt_arith *));
-_PROTOTYPE(int flt_b64_add, (struct flt_mantissa *, struct flt_mantissa *));
-_PROTOTYPE(void flt_split, (flt_arith *, unsigned short *));
+int ucmp(long, long);
+void flt_nrm(flt_arith *);
+void flt_chk(flt_arith *);
+int flt_b64_add(struct flt_mantissa *, struct flt_mantissa *);
+void flt_split(flt_arith *, unsigned short *);