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-rw-r--r--src/settings.js7
1 files changed, 4 insertions, 3 deletions
diff --git a/src/settings.js b/src/settings.js
index b40330b8..79c54c2b 100644
--- a/src/settings.js
+++ b/src/settings.js
@@ -354,9 +354,10 @@ var LINKABLE = 0; // If set to 1, this file can be linked with others, either as
// LINKABLE of 0 is very useful in that we can reduce the size of the
// generated code very significantly, by removing everything not actually used.
-var DLOPEN_SUPPORT = 0; // Whether to support dlopen(NULL, ...) which enables dynamic access to the
- // module's functions and globals. Implies LINKABLE=1, because we do not want
- // dead code elimination.
+var DLOPEN_SUPPORT = 0; // Full support for dlopen. This is necessary for asm.js and for all code
+ // modes for dlopen(NULL, ...). Note that you must use EMSCRIPTEN_KEEPALIVE
+ // to ensure that functions and globals can be accessed through dlsym,
+ // otherwise LLVM may optimize them out.
var RUNTIME_TYPE_INFO = 0; // Whether to expose type info to the script at run time. This
// increases the size of the generated script, but allows you