crt: exe: Move mingw-w64 / gcc EXE runtime code into the guarded block

This will ensure that _pei386_runtime_relocator() is called as the first
function and that all those runtime init code functions are called in
guarded block which prevents duplicate code execution.

Signed-off-by: Martin Storsjö <martin@martin.st>

mingw-w64-crt/crt/crtexe.c

diff --git a/mingw-w64-crt/crt/crtexe.c b/mingw-w64-crt/crt/crtexe.c
index 620f08b..0f79c0a 100644
--- a/mingw-w64-crt/crt/crtexe.c
+++ b/mingw-w64-crt/crt/crtexe.c
@@ -172,6 +172,14 @@
       {
 	__native_startup_state = __initializing;
 
+	_pei386_runtime_relocator ();
+#if defined(__x86_64__) && !defined(__SEH__)
+	__mingw_init_ehandler ();
+#endif
+	__mingw_oldexcpt_handler = SetUnhandledExceptionFilter (_gnu_exception_handler);
+	_set_invalid_parameter_handler (__mingw_invalidParameterHandler);
+	_fpreset ();
+
 	managedapp = check_managed_app ();
 	if (__mingw_app_type)
 	  __set_app_type (_GUI_APP);
@@ -218,15 +226,6 @@
     
     if (__dyn_tls_init_callback != NULL)
       __dyn_tls_init_callback (NULL, DLL_THREAD_ATTACH, NULL);
-    
-    _pei386_runtime_relocator ();
-    __mingw_oldexcpt_handler = SetUnhandledExceptionFilter (_gnu_exception_handler);
-#if defined(__x86_64__) && !defined(__SEH__)
-    __mingw_init_ehandler ();
-#endif
-    _set_invalid_parameter_handler (__mingw_invalidParameterHandler);
-    
-    _fpreset ();
 
     duplicate_ppstrings (argc, &argv);
     __main (); /* C++ initialization. */