--- boost/interprocess/detail/workaround.hpp.orig	2020-12-15 06:31:51.037665526 +0100
+++ boost/interprocess/detail/workaround.hpp	2020-12-15 06:32:39.741281893 +0100
@@ -31,7 +31,7 @@
    //////////////////////////////////////////////////////
    //Check for XSI shared memory objects. They are available in nearly all UNIX platforms
    //////////////////////////////////////////////////////
-   #if !defined(__QNXNTO__) && !defined(__ANDROID__) && !defined(__HAIKU__) && !(__VXWORKS__)
+   #if !defined(__QNXNTO__) && !defined(__ANDROID__) && !defined(__HAIKU__) && !(__VXWORKS__) && !defined(__EMSCRIPTEN__)
       #define BOOST_INTERPROCESS_XSI_SHARED_MEMORY_OBJECTS
    #endif