12 files changed, 36 insertions, 0 deletions
diff --git a/src/plugin-luaconfigfiles.cc b/src/plugin-luaconfigfiles.cc
index 196fed1..32f6130 100644
--- a/src/plugin-luaconfigfiles.cc
+++ b/src/plugin-luaconfigfiles.cc
@@ -7,6 +7,9 @@
 #endif
 
 static void _init_plugin(Lua * L) {
+    static bool done = false;
+    if (done) return;
+    done = true;
     LuaConfigFile::pushstatics(L);
 }
 
diff --git a/src/plugin-luaftgl.cc b/src/plugin-luaftgl.cc
index 83f26f1..95f23f0 100644
--- a/src/plugin-luaftgl.cc
+++ b/src/plugin-luaftgl.cc
@@ -7,6 +7,9 @@
 #endif 
 
 static void _init_plugin(Lua * L) {
+    static bool done = false;
+    if (done) return;
+    done = true;
     LuaFTFont::pushstatics(L);
 }
 
diff --git a/src/plugin-luagl.cc b/src/plugin-luagl.cc
index b319a85..fe7c525 100644
--- a/src/plugin-luagl.cc
+++ b/src/plugin-luagl.cc
@@ -7,6 +7,9 @@
 #endif 
 
 static void _init_plugin(Lua * L) {
+    static bool done = false;
+    if (done) return;
+    done = true;
     luaopen_opengl(L);
     L->pop();
 }
diff --git a/src/plugin-luahandle.cc b/src/plugin-luahandle.cc
index 7e6b675..05d9fa9 100644
--- a/src/plugin-luahandle.cc
+++ b/src/plugin-luahandle.cc
@@ -7,6 +7,9 @@
 #endif 
 
 static void _init_plugin(Lua * L) {
+    static bool done = false;
+    if (done) return;
+    done = true;
     LuaInput::pushconstruct(L);
     LuaOutput::pushconstruct(L);
     LuaBuffer::pushconstruct(L);
diff --git a/src/plugin-luahttp.cc b/src/plugin-luahttp.cc
index ef3a5f4..dd780ea 100644
--- a/src/plugin-luahttp.cc
+++ b/src/plugin-luahttp.cc
@@ -7,6 +7,9 @@
 #endif 
 
 static void _init_plugin(Lua * L) {
+    static bool done = false;
+    if (done) return;
+    done = true;
     LuaHttpResponse::pushstatics(L);
 }
 
diff --git a/src/plugin-lualibs.cc b/src/plugin-lualibs.cc
index 36b866d..d14dc30 100644
--- a/src/plugin-lualibs.cc
+++ b/src/plugin-lualibs.cc
@@ -7,6 +7,9 @@
 #endif 
 
 static void _init_plugin(Lua * L) {
+    static bool done = false;
+    if (done) return;
+    done = true;
     LoadLuaLibs(L);
 }
 
diff --git a/src/plugin-luaocci.cc b/src/plugin-luaocci.cc
index 0cade24..3d8a445 100644
--- a/src/plugin-luaocci.cc
+++ b/src/plugin-luaocci.cc
@@ -7,6 +7,9 @@
 #endif 
 
 static void _init_plugin(Lua * L) {
+    static bool done = false;
+    if (done) return;
+    done = true;
     LuaOCCI_pushstatics(L);
 }
 
diff --git a/src/plugin-luaosmesa.cc b/src/plugin-luaosmesa.cc
index 09929b7..daf0fd4 100644
--- a/src/plugin-luaosmesa.cc
+++ b/src/plugin-luaosmesa.cc
@@ -241,6 +241,9 @@ int sLua_plugin_osmesa::plugin_osmesa_proceed_statics(Lua * L, int n, int caller
 }
 
 static void _init_plugin(Lua * L) {
+    static bool done = false;
+    if (done) return;
+    done = true;
     init_OSMesa();
     Luaplugin_osmesa::pushstatics(L);
 }
diff --git a/src/plugin-luaregex.cc b/src/plugin-luaregex.cc
index 13be506..739d8f9 100644
--- a/src/plugin-luaregex.cc
+++ b/src/plugin-luaregex.cc
@@ -7,6 +7,9 @@
 #endif 
 
 static void _init_plugin(Lua * L) {
+    static bool done = false;
+    if (done) return;
+    done = true;
     LuaRegex::pushstatics(L);
 }
 
diff --git a/src/plugin-luasql.cc b/src/plugin-luasql.cc
index 19588fe..84350e7 100644
--- a/src/plugin-luasql.cc
+++ b/src/plugin-luasql.cc
@@ -7,6 +7,9 @@
 #endif 
 
 static void _init_plugin(Lua * L) {
+    static bool done = false;
+    if (done) return;
+    done = true;
     LuaSQLConnection::pushstatics(L);
 }
 
diff --git a/src/plugin-luatask.cc b/src/plugin-luatask.cc
index 3fc2b3f..f6b29d3 100644
--- a/src/plugin-luatask.cc
+++ b/src/plugin-luatask.cc
@@ -7,6 +7,9 @@
 #endif 
 
 static void _init_plugin(Lua * L) {
+    static bool done = false;
+    if (done) return;
+    done = true;
     LuaTaskMan::pushstatics(L);
 }
 
diff --git a/src/plugin-luaxml.cc b/src/plugin-luaxml.cc
index b6ad423..cee1132 100644
--- a/src/plugin-luaxml.cc
+++ b/src/plugin-luaxml.cc
@@ -7,6 +7,9 @@
 #endif 
 
 static void _init_plugin(Lua * L) {
+    static bool done = false;
+    if (done) return;
+    done = true;
     luaopen_xml(L);
     L->pop();
 }