patch 8.2.0479: unloading shared libraries on exit has no purpose

Problem:    Unloading shared libraries on exit has no purpose.
Solution:   Do not unload shared libraries on exit.

src/if_lua.c

@@ -398,16 +398,6 @@ static const luaV_Reg luaV_dll[] = {
 
 static HANDLE hinstLua = NULL;
 
-    static void
-end_dynamic_lua(void)
-{
-    if (hinstLua)
-    {
-	close_dll(hinstLua);
-	hinstLua = 0;
-    }
-}
-
     static int
 lua_link_init(char *libname, int verbose)
 {
@@ -2121,9 +2111,6 @@ lua_end(void)
     {
 	lua_close(L);
 	L = NULL;
-#ifdef DYNAMIC_LUA
-	end_dynamic_lua();
-#endif
     }
 }
 

src/if_perl.xs

@@ -762,7 +762,7 @@ perl_init(void)
 }
 
 /*
- * perl_end(): clean up after ourselves
+ * Clean up after ourselves.
  */
     void
 perl_end(void)
@@ -777,13 +777,6 @@ perl_end(void)
 	Perl_sys_term();
 #endif
     }
-#ifdef DYNAMIC_PERL
-    if (hPerlLib)
-    {
-	close_dll(hPerlLib);
-	hPerlLib = NULL;
-    }
-#endif
 }
 
 /*

src/if_python.c

@@ -654,19 +654,6 @@ static struct
     {"", NULL},
 };
 
-/*
- * Free python.dll
- */
-    static void
-end_dynamic_python(void)
-{
-    if (hinstPython)
-    {
-	close_dll(hinstPython);
-	hinstPython = 0;
-    }
-}
-
 /*
  * Load library and get all pointers.
  * Parameter 'libname' provides name of DLL.
@@ -889,7 +876,6 @@ python_end(void)
 # endif
 	Py_Finalize();
     }
-    end_dynamic_python();
 #else
     if (Py_IsInitialized())
     {

src/if_python3.c

@@ -634,19 +634,6 @@ py3__Py_XDECREF(PyObject *op)
 #  define Py_XDECREF(op) py3__Py_XDECREF(_PyObject_CAST(op))
 # endif
 
-/*
- * Free python.dll
- */
-    static void
-end_dynamic_python3(void)
-{
-    if (hinstPy3 != 0)
-    {
-	close_dll(hinstPy3);
-	hinstPy3 = 0;
-    }
-}
-
 /*
  * Load library and get all pointers.
  * Parameter 'libname' provides name of DLL.
@@ -873,10 +860,6 @@ python3_end(void)
 	Py_Finalize();
     }
 
-#ifdef DYNAMIC_PYTHON3
-    end_dynamic_python3();
-#endif
-
     --recurse;
 }
 

src/if_ruby.c

@@ -735,19 +735,6 @@ static struct
     {"", NULL},
 };
 
-/*
- * Free ruby.dll
- */
-    static void
-end_dynamic_ruby(void)
-{
-    if (hinstRuby)
-    {
-	close_dll(hinstRuby);
-	hinstRuby = NULL;
-    }
-}
-
 /*
  * Load library and get all pointers.
  * Parameter 'libname' provides name of DLL.
@@ -797,9 +784,6 @@ ruby_enabled(int verbose)
     void
 ruby_end(void)
 {
-#ifdef DYNAMIC_RUBY
-    end_dynamic_ruby();
-#endif
 }
 
     void

src/if_tcl.c

@@ -280,13 +280,6 @@ tcl_enabled(int verbose)
     void
 tcl_end(void)
 {
-#ifdef DYNAMIC_TCL
-    if (hTclLib)
-    {
-	close_dll(hTclLib);
-	hTclLib = NULL;
-    }
-#endif
 }
 
 /////////////////////////////////////////////////////////////////////////////

src/version.c

@@ -738,6 +738,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    479,
 /**/
     478,
 /**/