xutil.c: remove duplicate copies, create new library libutil.a to contain xutil.

We keep the lib/xutil.c version. As a consequence, also factor out
_internal_error and associated macros.  It might be overkill to make a
new file error_util.c for this, but _internal_error does not really
belong in database.cc.

1 files changed, 41 insertions, 0 deletions

diff --git a/util/error_util.c b/util/error_util.c
new file mode 100644
index 00000000..630d2281
--- /dev/null
+++ b/util/error_util.c
@@ -0,0 +1,41 @@
+/* error_util.c - internal error utilities for notmuch.
+ *
+ * Copyright © 2009 Carl Worth
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see http://www.gnu.org/licenses/ .
+ *
+ * Author: Carl Worth <cworth@cworth.org>
+ */
+
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdio.h>
+
+#include "error_util.h"
+
+int
+_internal_error (const char *format, ...)
+{
+    va_list va_args;
+
+    va_start (va_args, format);
+
+    fprintf (stderr, "Internal error: ");
+    vfprintf (stderr, format, va_args);
+
+    exit (1);
+
+    return 1;
+}
+