Check in the pristine copy of ICU 4.6...

icu46/source/tools/genrb/errmsg.c

+/*
+*******************************************************************************
+*
+*   Copyright (C) 1998-2004, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+*******************************************************************************
+*
+* File error.c
+*
+* Modification History:
+*
+*   Date        Name        Description
+*   05/28/99    stephen     Creation.
+*******************************************************************************
+*/
+
+#include <stdarg.h>
+#include <stdio.h>
+#include "cstring.h"
+#include "errmsg.h"
+
+void error(uint32_t linenumber, const char *msg, ...)
+{
+    va_list va;
+
+    va_start(va, msg);
+    fprintf(stderr, "%s:%u: ", gCurrentFileName, (int)linenumber);
+    vfprintf(stderr, msg, va);
+    fprintf(stderr, "\n");
+    va_end(va);
+}
+
+static UBool gShowWarning = TRUE;
+
+void setShowWarning(UBool val)
+{
+    gShowWarning = val;
+}
+
+UBool getShowWarning(){
+    return gShowWarning;
+}
+
+static UBool gStrict =FALSE;
+UBool isStrict(){
+    return gStrict;
+}
+void setStrict(UBool val){
+    gStrict = val;
+}
+static UBool gVerbose =FALSE;
+UBool isVerbose(){
+    return gVerbose;
+}
+void setVerbose(UBool val){
+    gVerbose = val;
+}
+void warning(uint32_t linenumber, const char *msg, ...)
+{
+    if (gShowWarning)
+    {
+        va_list va;
+
+        va_start(va, msg);
+        fprintf(stderr, "%s:%u: warning: ", gCurrentFileName, (int)linenumber);
+        vfprintf(stderr, msg, va);
+        fprintf(stderr, "\n");
+        va_end(va);
+    }
+}
+