diff --git a/util/ego/build.lua b/util/ego/build.lua
index 864447550..78895f508 100644
--- a/util/ego/build.lua
+++ b/util/ego/build.lua
@@ -3,6 +3,7 @@ local function build_ego(name)
 		name = name,
 		srcs = { "./"..name.."/*.c" },
 		deps = {
+			"./"..name.."/*.h",
 			"util/ego/share+lib",
 			"modules/src/em_data+lib",
 			"h+emheaders",
diff --git a/util/ego/share/build.lua b/util/ego/share/build.lua
index ab1068d2c..5ca714897 100644
--- a/util/ego/share/build.lua
+++ b/util/ego/share/build.lua
@@ -48,6 +48,7 @@ clibrary {
 		"./init_glob.c",
 	},
 	deps = {
+		"./*.h",
 		"+classdefs_h",
 		"+pop_push_h",
 		"h+emheaders",
@@ -57,5 +58,3 @@ clibrary {
 		["+cflags"] = {"-DVERBOSE", "-DNOTCOMPACT"}
 	}
 }
-
-
diff --git a/util/ego/share/debug.c b/util/ego/share/debug.c
index 81080f7cf..56514d149 100644
--- a/util/ego/share/debug.c
+++ b/util/ego/share/debug.c
@@ -45,7 +45,7 @@ void error(const char *s, ...)
 void OUTTRACE(const char *s, int n)
 {
 	fprintf(stderr,"> ");
-	vfprintf(stderr,s,n);
+	fprintf(stderr,s,n);
 	fprintf(stderr,"\n");
 }
 #endif
diff --git a/util/ego/ud/ud.c b/util/ego/ud/ud.c
index c0fe613fd..087337144 100644
--- a/util/ego/ud/ud.c
+++ b/util/ego/ud/ud.c
@@ -269,13 +269,13 @@ pr_localtab() {
 	short i;
 	local_p lc;
 
-	printf("LOCAL-TABLE (%d)\n\n",nrlocals);
+	fprintf(stderr,"LOCAL-TABLE (%d)\n\n",nrlocals);
 	for (i = 1; i <= nrlocals; i++) {
 		lc = locals[i];
-		printf("LOCAL %d\n",i);
-		printf("	offset= %ld\n",lc->lc_off);
-		printf("	size=   %d\n",lc->lc_size);
-		printf("	flags=  %d\n",lc->lc_flags);
+		fprintf(stderr,"LOCAL %d\n",i);
+		fprintf(stderr,"\toffset= %ld\n",lc->lc_off);
+		fprintf(stderr,"\tsize=   %d\n",lc->lc_size);
+		fprintf(stderr,"\tflags=  %d\n",lc->lc_flags);
 	}
 }
 
@@ -284,12 +284,13 @@ pr_globals()
 	dblock_p d;
 	obj_p obj;
 
-	printf("GLOBALS (%d)\n\n",nrglobals);
-	printf("ID	GLOBNR\n");
+	fprintf(stderr,"GLOBALS (%d)\n\n",nrglobals);
+	fprintf(stderr,"ID\tGLOBNR\n");
 	for (d = fdblock; d != (dblock_p) 0; d = d->d_next) {
 		for (obj = d->d_objlist; obj != (obj_p) 0; obj = obj->o_next) {
 			if (obj->o_globnr != 0) {
-			   printf("%d	%d\n", obj->o_id,obj->o_globnr);
+				fprintf(stderr,"%d\t%d\n",
+				    obj->o_id,obj->o_globnr);
 			}
 		}
 	}
@@ -302,20 +303,20 @@ pr_defs()
 	short i;
 	line_p l;
 
-	printf("DEF TABLE\n\n");
+	fprintf(stderr,"DEF TABLE\n\n");
 	for (i = 1; i <= nrexpldefs; i++) {
 		l = defs[i];
-		printf("%d	%s ",EXPL_TO_DEFNR(i),
+		fprintf(stderr,"%d\t%s ",EXPL_TO_DEFNR(i),
 			&em_mnem[(INSTR(l)-sp_fmnem)*4]);
 		switch(TYPE(l)) {
 			case OPSHORT:
-				printf("%d\n",SHORT(l));
+				fprintf(stderr,"%d\n",SHORT(l));
 				break;
 			case OPOFFSET:
-				printf("%ld\n",OFFSET(l));
+				fprintf(stderr,"%ld\n",OFFSET(l));
 				break;
 			case OPOBJECT:
-				printf("%d\n",OBJ(l)->o_id);
+				fprintf(stderr,"%d\n",OBJ(l)->o_id);
 				break;
 			default:
 				assert(FALSE);
@@ -331,13 +332,13 @@ pr_set(name,k,s,n)
 {
 	short i;
 
-	printf("%s(%d) =	{",name,k);
+	fprintf(stderr,"%s(%d) =\t{",name,k);
 	for (i = 1; i <= n; i++) {
 		if (Cis_elem(i,s)) {
-			printf("%d ",i);
+			fprintf(stderr,"%d ",i);
 		}
 	}
-	printf ("}\n");
+	fprintf(stderr,"}\n");
 }
 
 pr_blocks(p)
@@ -347,7 +348,7 @@ pr_blocks(p)
 	short n;
 
 	for (b = p->p_start; b != 0; b = b->b_next) {
-		printf ("\n");
+		fprintf(stderr,"\n");
 		n = b->b_id;
 		pr_set("GEN",n,GEN(b),nrdefs);
 		pr_set("KILL",n,KILL(b),nrdefs);
@@ -361,10 +362,10 @@ pr_copies()
 {
 	short i;
 
-	printf("\nCOPY TABLE\n\n");
+	fprintf(stderr,"\nCOPY TABLE\n\n");
 	for (i = 1; i <= nrdefs; i++) {
 		if (def_to_copynr[i] != 0) {
-			printf("%d	%d\n",i,def_to_copynr[i]);
+			fprintf(stderr,"%d\t%d\n",i,def_to_copynr[i]);
 		}
 	}
 }
@@ -376,7 +377,7 @@ pr_cblocks(p)
 	short n;
 
 	for (b = p->p_start; b != 0; b = b->b_next) {
-		printf ("\n");
+		fprintf(stderr,"\n");
 		n = b->b_id;
 		pr_set("CGEN",n,C_GEN(b),nrcopies);
 		pr_set("CKILL",n,C_KILL(b),nrcopies);