more stuff

streq/Makefile

@@ -0,0 +1,11 @@
+all: streq
+
+clean:
+	rm -r streq
+
+sane: streq
+
+streq: streq.c
+	$(CC) -o streq streq.c
+
+.PHONY: all clean sane

streq/streq.c

@@ -1,6 +1,6 @@
-#include <sysexits.h>
-#include <unistd.h>
-#include "libio.h"
+#include <stdio.h> /* fprintf(3) */
+#include <stdlib.h> /* stderr, stdin, stdout */
+#include <sysexits.h> /* EX_USAGE */
 
 static char *program_name = "streq";
 
@@ -9,11 +9,8 @@ int main(int argc, char *argv[]){
 	int j;
 
 	if(argc < 3){
-		write(2, "Usage: ", 7);
-		if(argv[0] == NULL)
-			argv[0] = program_name;
-		fdprint(2, argv[0]);
-		write(2, " [strings...]\n", 14);
+		fprintf(stderr, "Usage: %s [string] [string...]\n",
+			argv[0] == NULL ? program_name : argv[0]);
 		return EX_USAGE;
 	}