Merged the IDL compiler written by Ove Kaaven.
diff --git a/tools/widl/utils.c b/tools/widl/utils.c
new file mode 100644
index 0000000..0420e1c
--- /dev/null
+++ b/tools/widl/utils.c
@@ -0,0 +1,201 @@
+/*
+ * Utility routines
+ *
+ * Copyright 1998 Bertho A. Stultiens
+ * Copyright 2002 Ove Kaaven
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "config.h"
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <assert.h>
+#include <ctype.h>
+
+#include "wine/unicode.h"
+#include "widl.h"
+#include "utils.h"
+#include "parser.h"
+
+/* #define WANT_NEAR_INDICATION */
+
+#ifdef WANT_NEAR_INDICATION
+void make_print(char *str)
+{
+ while(*str)
+ {
+ if(!isprint(*str))
+ *str = ' ';
+ str++;
+ }
+}
+#endif
+
+static void generic_msg(const char *s, const char *t, const char *n, va_list ap)
+{
+ fprintf(stderr, "%s:%d:%d: %s: ", input_name ? input_name : "stdin", line_number, char_number, t);
+ vfprintf(stderr, s, ap);
+#ifdef WANT_NEAR_INDICATION
+ {
+ char *cpy;
+ if(n)
+ {
+ cpy = xstrdup(n);
+ make_print(cpy);
+ fprintf(stderr, " near '%s'", cpy);
+ free(cpy);
+ }
+ }
+#endif
+ fprintf(stderr, "\n");
+}
+
+
+int yyerror(const char *s, ...)
+{
+ va_list ap;
+ va_start(ap, s);
+ generic_msg(s, "Error", yytext, ap);
+ va_end(ap);
+ exit(1);
+ return 1;
+}
+
+int yywarning(const char *s, ...)
+{
+ va_list ap;
+ va_start(ap, s);
+ generic_msg(s, "Warning", yytext, ap);
+ va_end(ap);
+ return 0;
+}
+
+void internal_error(const char *file, int line, const char *s, ...)
+{
+ va_list ap;
+ va_start(ap, s);
+ fprintf(stderr, "Internal error (please report) %s %d: ", file, line);
+ vfprintf(stderr, s, ap);
+ fprintf(stderr, "\n");
+ va_end(ap);
+ exit(3);
+}
+
+void error(const char *s, ...)
+{
+ va_list ap;
+ va_start(ap, s);
+ fprintf(stderr, "Error: ");
+ vfprintf(stderr, s, ap);
+ fprintf(stderr, "\n");
+ va_end(ap);
+ exit(2);
+}
+
+void warning(const char *s, ...)
+{
+ va_list ap;
+ va_start(ap, s);
+ fprintf(stderr, "Warning: ");
+ vfprintf(stderr, s, ap);
+ fprintf(stderr, "\n");
+ va_end(ap);
+}
+
+void chat(const char *s, ...)
+{
+ if(debuglevel & DEBUGLEVEL_CHAT)
+ {
+ va_list ap;
+ va_start(ap, s);
+ fprintf(stderr, "FYI: ");
+ vfprintf(stderr, s, ap);
+ fprintf(stderr, "\n");
+ va_end(ap);
+ }
+}
+
+char *dup_basename(const char *name, const char *ext)
+{
+ int namelen;
+ int extlen = strlen(ext);
+ char *base;
+ char *slash;
+
+ if(!name)
+ name = "widl.tab";
+
+ slash = strrchr(name, '/');
+ if (slash)
+ name = slash + 1;
+
+ namelen = strlen(name);
+
+ /* +4 for later extension and +1 for '\0' */
+ base = (char *)xmalloc(namelen +4 +1);
+ strcpy(base, name);
+ if(!strcasecmp(name + namelen-extlen, ext))
+ {
+ base[namelen - extlen] = '\0';
+ }
+ return base;
+}
+
+void *xmalloc(size_t size)
+{
+ void *res;
+
+ assert(size > 0);
+ res = malloc(size);
+ if(res == NULL)
+ {
+ error("Virtual memory exhausted.\n");
+ }
+ /*
+ * We set it to 0.
+ * This is *paramount* because we depend on it
+ * just about everywhere in the rest of the code.
+ */
+ memset(res, 0, size);
+ return res;
+}
+
+
+void *xrealloc(void *p, size_t size)
+{
+ void *res;
+
+ assert(size > 0);
+ res = realloc(p, size);
+ if(res == NULL)
+ {
+ error("Virtual memory exhausted.\n");
+ }
+ return res;
+}
+
+char *xstrdup(const char *str)
+{
+ char *s;
+
+ assert(str != NULL);
+ s = (char *)xmalloc(strlen(str)+1);
+ return strcpy(s, str);
+}
