diff --git a/src/relooper/Relooper.cpp b/src/relooper/Relooper.cpp
index 204986da727ac..14c203e0f3baf 100644
--- a/src/relooper/Relooper.cpp
+++ b/src/relooper/Relooper.cpp
@@ -1,3 +1,7 @@
+// We are implementing the Relooper C API, so always export from this file.
+#ifndef RELOOPERDLL_EXPORTS
+#define RELOOPERDLL_EXPORTS
+#endif
 
 #include "Relooper.h"
 
@@ -1269,7 +1273,7 @@ VoidIntMap __blockDebugMap__; // maps block pointers in currently running code t
 
 extern "C" {
 
-void rl_set_output_buffer(char *buffer, int size) {
+RELOOPERDLL_API void rl_set_output_buffer(char *buffer, int size) {
 #if DEBUG
   printf("#include \"Relooper.h\"\n");
   printf("int main() {\n");
@@ -1279,15 +1283,15 @@ void rl_set_output_buffer(char *buffer, int size) {
   Relooper::SetOutputBuffer(buffer, size);
 }
 
-void rl_make_output_buffer(int size) {
+RELOOPERDLL_API void rl_make_output_buffer(int size) {
   Relooper::SetOutputBuffer((char*)malloc(size), size);
 }
 
-void rl_set_asm_js_mode(int on) {
+RELOOPERDLL_API void rl_set_asm_js_mode(int on) {
   Relooper::SetAsmJSMode(on);
 }
 
-void *rl_new_block(const char *text, const char *branch_var) {
+RELOOPERDLL_API void *rl_new_block(const char *text, const char *branch_var) {
   Block *ret = new Block(text, branch_var);
 #if DEBUG
   printf("  void *b%d = rl_new_block(\"// code %d\");\n", ret->Id, ret->Id);
@@ -1297,21 +1301,21 @@ void *rl_new_block(const char *text, const char *branch_var) {
   return ret;
 }
 
-void rl_delete_block(void *block) {
+RELOOPERDLL_API void rl_delete_block(void *block) {
 #if DEBUG
   printf("  rl_delete_block(block_map[%d]);\n", ((Block*)block)->Id);
 #endif
   delete (Block*)block;
 }
 
-void rl_block_add_branch_to(void *from, void *to, const char *condition, const char *code) {
+RELOOPERDLL_API void rl_block_add_branch_to(void *from, void *to, const char *condition, const char *code) {
 #if DEBUG
   printf("  rl_block_add_branch_to(block_map[%d], block_map[%d], %s%s%s, %s%s%s);\n", ((Block*)from)->Id, ((Block*)to)->Id, condition ? "\"" : "", condition ? condition : "NULL", condition ? "\"" : "", code ? "\"" : "", code ? code : "NULL", code ? "\"" : "");
 #endif
   ((Block*)from)->AddBranchTo((Block*)to, condition, code);
 }
 
-void *rl_new_relooper() {
+RELOOPERDLL_API void *rl_new_relooper() {
 #if DEBUG
   printf("  void *block_map[10000];\n");
   printf("  void *rl = rl_new_relooper();\n");
@@ -1319,18 +1323,18 @@ void *rl_new_relooper() {
   return new Relooper;
 }
 
-void rl_delete_relooper(void *relooper) {
+RELOOPERDLL_API void rl_delete_relooper(void *relooper) {
   delete (Relooper*)relooper;
 }
 
-void rl_relooper_add_block(void *relooper, void *block) {
+RELOOPERDLL_API void rl_relooper_add_block(void *relooper, void *block) {
 #if DEBUG
   printf("  rl_relooper_add_block(rl, block_map[%d]);\n", ((Block*)block)->Id);
 #endif
   ((Relooper*)relooper)->AddBlock((Block*)block);
 }
 
-void rl_relooper_calculate(void *relooper, void *entry) {
+RELOOPERDLL_API void rl_relooper_calculate(void *relooper, void *entry) {
 #if DEBUG
   printf("  rl_relooper_calculate(rl, block_map[%d]);\n", ((Block*)entry)->Id);
   printf("  rl_relooper_render(rl);\n");
@@ -1342,7 +1346,7 @@ void rl_relooper_calculate(void *relooper, void *entry) {
   ((Relooper*)relooper)->Calculate((Block*)entry);
 }
 
-void rl_relooper_render(void *relooper) {
+RELOOPERDLL_API void rl_relooper_render(void *relooper) {
   ((Relooper*)relooper)->Render();
 }
 
diff --git a/src/shell.html b/src/shell.html
index efb9e91db9a9f..7a3a8d08c4a29 100644
--- a/src/shell.html
+++ b/src/shell.html
@@ -11,10 +11,44 @@
       div.emscripten_border { border: 1px solid black; }
       /* the canvas *must not* have any border or padding, or mouse coords will be wrong */
       canvas.emscripten { border: 0px none; }
+
+      .spinner {
+        height: 50px;
+        width: 50px;
+        margin: 0px auto;
+        -webkit-animation: rotation .8s linear infinite;
+        -moz-animation: rotation .8s linear infinite;
+        -o-animation: rotation .8s linear infinite;
+        animation: rotation 0.8s linear infinite;
+        border-left: 10px solid rgb(0,150,240);
+        border-right: 10px solid rgb(0,150,240);
+        border-bottom: 10px solid rgb(0,150,240);
+        border-top: 10px solid rgb(100,0,200);
+        border-radius: 100%;
+        background-color: rgb(200,100,250);
+      }
+      @-webkit-keyframes rotation {
+        from {-webkit-transform: rotate(0deg);}
+        to {-webkit-transform: rotate(360deg);}
+      }
+      @-moz-keyframes rotation {
+        from {-moz-transform: rotate(0deg);}
+        to {-moz-transform: rotate(360deg);}
+      }
+      @-o-keyframes rotation {
+        from {-o-transform: rotate(0deg);}
+        to {-o-transform: rotate(360deg);}
+      }
+      @keyframes rotation {
+        from {transform: rotate(0deg);}
+        to {transform: rotate(360deg);}
+      }
+
     </style>
   </head>
   <body>
     <hr/>
+    <figure style="overflow:visible;" id="spinner"><div class="spinner"></div><center style="margin-top:0.5em"><strong>emscripten</strong></center></figure>
     <div class="emscripten" id="status">Downloading...</div>
     <div class="emscripten">
       <progress value="0" max="100" id="progress" hidden=1></progress>  
@@ -35,7 +69,10 @@
     <textarea class="emscripten" id="output" rows="8"></textarea>
     <hr>
     <script type='text/javascript'>
-      // connect to canvas
+      var statusElement = document.getElementById('status');
+      var progressElement = document.getElementById('progress');
+      var spinnerElement = document.getElementById('spinner');
+
       var Module = {
         preRun: [],
         postRun: [],
@@ -68,17 +105,17 @@
           var m = text.match(/([^(]+)\((\d+(\.\d+)?)\/(\d+)\)/);
           var now = Date.now();
           if (m && now - Date.now() < 30) return; // if this is a progress update, skip it if too soon
-          var statusElement = document.getElementById('status');
-          var progressElement = document.getElementById('progress');
           if (m) {
             text = m[1];
             progressElement.value = parseInt(m[2])*100;
             progressElement.max = parseInt(m[4])*100;
             progressElement.hidden = false;
+            spinnerElement.hidden = false;
           } else {
             progressElement.value = null;
             progressElement.max = null;
             progressElement.hidden = true;
+            if (!text) spinnerElement.hidden = true;
           }
           statusElement.innerHTML = text;
         },
diff --git a/tools/shared.py b/tools/shared.py
index 665a6d526d069..f88eace0f56dc 100644
--- a/tools/shared.py
+++ b/tools/shared.py
@@ -345,7 +345,7 @@ def find_temp_directory():
 # we re-check sanity when the settings are changed)
 # We also re-check sanity and clear the cache when the version changes
 
-EMSCRIPTEN_VERSION = '1.9.4'
+EMSCRIPTEN_VERSION = '1.9.5'
 
 def generate_sanity():
   return EMSCRIPTEN_VERSION + '|' + get_llvm_target() + '|' + LLVM_ROOT + '|' + get_clang_version()