1 files changed, 16 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/lib/perror.c b/mdk-stage1/dietlibc/lib/perror.c
new file mode 100644
index 000000000..5476d76a1
--- /dev/null
+++ b/mdk-stage1/dietlibc/lib/perror.c
@@ -0,0 +1,16 @@
+#include <unistd.h>
+#include <string.h>
+
+extern char *sys_errlist[];
+extern int sys_nerr;
+extern int errno;
+
+void perror(const char *s) {
+  register char *message="[unknown error]";
+  write(2,s,strlen(s));
+  write(2,": ",2);
+  if (errno>=0 && errno<sys_nerr)
+    message=sys_errlist[errno];
+  write(2,message,strlen(message));
+  write(2,"\n",1);
+}