sync code with last improvements from OpenBSD

app/fvwm/modules/FvwmIconMan/debug.c

@@ -0,0 +1,55 @@
+#include <stdarg.h>
+#include <assert.h>
+
+#include "FvwmIconMan.h"
+
+#include "debuglevels.h"
+
+static char const rcsid[] =
+  "$Id: debug.c,v 1.1.1.1 2006/11/26 10:53:49 matthieu Exp $";
+
+static FILE *console = NULL;
+
+void
+ConsoleMessage(const char *fmt, ...)
+{
+  va_list args;
+
+  assert(console != NULL);
+
+  fputs("FvwmIconMan: ", console);
+
+  va_start(args, fmt);
+  vfprintf(console, fmt, args);
+  va_end(args);
+}
+
+int
+OpenConsole(const char *filenm)
+{
+  if (!filenm)
+    console = stderr;
+  else if ((console = fopen(filenm, "w")) == NULL) {
+    fprintf(stderr,"%s: cannot open %s\n", Module, filenm);
+    return 0;
+  }
+
+  return 1;
+}
+
+void
+ConsoleDebug(int flag, const char *fmt, ...)
+{
+  assert(console != NULL);
+
+#ifdef PRINT_DEBUG
+  if (flag) {
+    va_list args;
+
+    va_start(args, fmt);
+    vfprintf(console, fmt, args);
+    fflush(console);
+    va_end(args);
+  }
+#endif
+}