Module.memoryInitializerPrefixURL option; #2542

2 files changed, 6 insertions, 0 deletions

diff --git a/emcc b/emcc
index d1d0dea5..5c953f9b 100755
--- a/emcc
+++ b/emcc
@@ -510,6 +510,9 @@ Options that are modified or new in %s include:
 
                               Note the .mem file should be in the same
                               directory as the .js file when the code is run.
+                              If you want it to be in a different directory,
+                              you can define Module.memoryInitializerPrefixURL
+                              which will be used as a prefix.
 
   -Wno-warn-absolute-paths If not specified, the compiler will warn about any
                            uses of absolute paths in -I and -L command line
diff --git a/src/postamble.js b/src/postamble.js
index 085dee69..cd2060fd 100644
--- a/src/postamble.js
+++ b/src/postamble.js
@@ -2,6 +2,9 @@
 // === Auto-generated postamble setup entry stuff ===
 
 if (memoryInitializer) {
+  if (Module['memoryInitializerPrefixURL']) {
+    memoryInitializer = Module['memoryInitializerPrefixURL'] + memoryInitializer;
+  }
   if (ENVIRONMENT_IS_NODE || ENVIRONMENT_IS_SHELL) {
     var data = Module['readBinary'](memoryInitializer);
 #if USE_TYPED_ARRAYS == 2