1 files changed, 15 insertions, 3 deletions
diff --git a/debug.cc b/debug.cc
index 428d5a4d..d8139ecc 100644
--- a/debug.cc
+++ b/debug.cc
@@ -2,14 +2,26 @@
 
 #ifdef DEBUG_ENABLED
 
+#include <fstream>
+#include <cstdlib>
+
 namespace ledger {
 
 std::ostream * debug_stream	 = &std::cerr;
 bool	       free_debug_stream = false;
 
-static class free_streams
-{
- public:
+static struct init_streams {
+  init_streams() {
+    // If debugging is enabled and DEBUG_FILE is set, all debugging
+    // output goes to that file.
+    if (const char * p = std::getenv("DEBUG_FILE")) {
+      debug_stream      = new std::ofstream(p);
+      free_debug_stream = true;
+    }
+  }
+} _debug_init;
+
+static struct free_streams {
   ~free_streams() {
     if (free_debug_stream && debug_stream) {
       delete debug_stream;