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-rw-r--r--src/shell.js4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/shell.js b/src/shell.js
index e48be3b0..754cdb8e 100644
--- a/src/shell.js
+++ b/src/shell.js
@@ -119,6 +119,10 @@ if (!Module['arguments']) {
Module.print = Module['print'];
Module.printErr = Module['printErr'];
+// Callbacks
+if (!Module['preRun']) Module['preRun'] = [];
+if (!Module['postRun']) Module['postRun'] = [];
+
{{BODY}}
// {{MODULE_ADDITIONS}}