--- audacity-1.2.1.orig/lib-src/libnyquist/nyx/nyx.c
+++ audacity-1.2.1/lib-src/libnyquist/nyx/nyx.c
@@ -620,8 +620,14 @@
 {
    if (moreargs()) {
       unsigned char *cmd;
+      int retval;
       cmd = (unsigned char *)getstring(xlgastring());
-      fprintf(stderr, "Will not execute system command: %s\n", cmd);
+      //fprintf(stderr, "Will not execute system command: %s\n", cmd);
+      system(cmd);
+      if (retval != 0) 
+      	fprintf(stderr, 
+		"the command \n %s \n exited with the error %d\n", 
+		cmd, retval);
    }
    return s_true;
 }
--- audacity-1.2.1.orig/lib-src/libnyquist/xlisp/xlftab.c
+++ audacity-1.2.1/lib-src/libnyquist/xlisp/xlftab.c
@@ -83,6 +83,7 @@
     xgetlambda(void),xmacroexpand(void),x1macroexpand(void),
     xinfo(void),					//Added by Ning Hu	Apr.2001
     xsetdir(void),					//Added by Ning Hu	May.2001
+    xatof(void), xftoa(void),				//Added by PiemBrossier Jul.2004
     xtrace(void),xuntrace(void),xprofile(void),xstrsearch(void), xsetupconsole(void);
 #endif
 
@@ -452,8 +453,9 @@
 {	"WRITE-INT",			S, xwrint		}, /* 292 */
 {	"WRITE-FLOAT",			S, xwrfloat		}, /* 293 */
 {	"INFO",				S, xinfo		}, /* 294 */ /* Ning Hu, Apr 2001 */
-{	NULL,				S, xnotimp		}, /* 295 */
-{	NULL,				S, xnotimp		}, /* 296 */
+
+{	"ATOF",				S, xatof		}, /* 295 */ /* Paul Brossier <piem@altern.org> */
+{	"FTOA",				S, xftoa		}, /* 296 */ /* Jul. 2004 */ 
 {	NULL,				S, xnotimp		}, /* 297 */
 {	NULL,				S, xnotimp		}, /* 298 */
 {	NULL,				S, xnotimp		}, /* 299 */
--- audacity-1.2.1.orig/lib-src/libnyquist/xlisp/xlstr.c
+++ audacity-1.2.1/lib-src/libnyquist/xlisp/xlstr.c
@@ -16,6 +16,11 @@
 #define TLEFT	1
 #define TRIGHT	2
 
+/* on the NeXT, atof is a macro in stdlib.h */
+#ifndef atof
+extern double atof();
+#endif
+
 /* external variables */
 extern LVAL k_start,k_end,k_1start,k_1end,k_2start,k_2end;
 extern LVAL s_true;
@@ -555,3 +560,41 @@
     return (icmp ? s_true : NIL);
 }
 
+/* functions added by Paul Brossier <piem@altern.org> */
+LVAL xatof() /* converts a string to a float */
+{
+	if (moreargs()) {
+		unsigned char *astring = NULL;
+		float afloat;
+		astring = (unsigned char *)getstring(xlgastring());
+		xllastarg();
+		afloat = atof(astring);
+		return cvflonum(afloat);
+	} else 
+		return NIL;
+}
+
+LVAL xftoa() /* converts a float to a string */
+{
+	LVAL arg;
+	FIXTYPE ival=0;
+	FLOTYPE fval=0;
+	if (moreargs()) {
+		/* get the first argument */
+		arg = xlgetarg();
+		xllastarg();
+
+		/* set the type of the first argument */
+		if (fixp(arg)) {
+			ival = getfixnum(arg);
+			snprintf(buf,STRMAX,"%d",ival);
+		}
+		else if (floatp(arg)) {
+			fval = getflonum(arg);
+			snprintf(buf,STRMAX,"%f",fval);
+		}
+
+		return cvstring(buf);
+	} else 
+		return NIL;
+}