- Addressed crash on exit with MinGW. This is a hack and i've reported it as a bug in the MinGW C runtime.

src/c_cmds.cpp

@@ -77,6 +77,10 @@
 extern FILE *Logfile;
 extern bool insave;
 
+#ifdef __MINGW32__
+extern bool exiting; // for MinGW
+#endif
+
 CVAR (Bool, sv_cheats, false, CVAR_SERVERINFO | CVAR_LATCH)
 CVAR (Bool, sv_unlimited_pickup, false, CVAR_SERVERINFO)
 
@@ -100,11 +104,17 @@ bool CheckCheatmode (bool printmsg)
 
 CCMD (quit)
 {
+#ifdef __MINGW32__
+	exiting = true;
+#endif
 	if (!insave) exit (0);
 }
 
 CCMD (exit)
 {
+#ifdef __MINGW32__
+	exiting = true;
+#endif
 	if (!insave) exit (0);
 }
 

src/scripting/vm/vmframe.cpp

@@ -41,6 +41,10 @@
 #include "vmintern.h"
 #include "types.h"
 
+#ifdef __MINGW32__
+extern bool exiting; // for MinGW
+#endif
+
 cycle_t VMCycles[10];
 int VMCalls[10];
 
@@ -243,6 +247,13 @@ VMFrameStack::VMFrameStack()
 
 VMFrameStack::~VMFrameStack()
 {
+#ifdef __MINGW32__
+	if (exiting) // hack hack
+	{
+		Blocks = NULL;
+		UnusedBlocks = NULL;
+	}
+#endif
 	while (PopFrame() != NULL)
 	{ }
 	if (Blocks != NULL)

src/win32/st_start.cpp

@@ -119,6 +119,10 @@
 
 // TYPES -------------------------------------------------------------------
 
+#ifdef __MINGW32__
+bool exiting = false; // for MinGW
+#endif
+
 class FBasicStartupScreen : public FStartupScreen
 {
 public:
@@ -1093,6 +1097,10 @@ void FStrifeStartupScreen::DrawStuff(int old_laser, int new_laser)
 
 void ST_Endoom()
 {
+#ifdef __MINGW32__
+	exiting = true;
+#endif
+
 	if (showendoom == 0) exit(0);
 
 	if (gameinfo.Endoom.Len() == 0)