--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mingw-5.1.4/win32/include/excpt.h	Fri Apr 03 17:16:45 2009 +0100
@@ -0,0 +1,102 @@
+/* 
+ * excpt.h
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is a part of the mingw-runtime package.
+ * No warranty is given; refer to the file DISCLAIMER within the package.
+ *
+ * Support for operating system level structured exception handling.
+ *
+ * NOTE: This is very preliminary stuff. I am also pretty sure it is
+ *       completely Intel specific.
+ *
+ */
+
+#ifndef	_EXCPT_H_
+#define	_EXCPT_H_
+
+/* All the headers include this file. */
+#include <_mingw.h>
+
+#include <windef.h>
+
+/*
+ * NOTE: The constants structs and typedefs below should be defined in the
+ *       Win32 API headers.
+ */
+#define	EH_NONCONTINUABLE	0x01
+#define	EH_UNWINDING		0x02
+#define	EH_EXIT_UNWIND		0x04
+#define	EH_STACK_INVALID	0x08
+#define	EH_NESTED_CALL		0x10
+
+#ifndef	RC_INVOKED
+
+typedef enum {
+	ExceptionContinueExecution,
+	ExceptionContinueSearch,
+	ExceptionNestedException,
+	ExceptionCollidedUnwind
+} EXCEPTION_DISPOSITION;
+
+
+/*
+ * End of stuff that should be in the Win32 API files.
+ */
+
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+/*
+ * The type of function that is expected as an exception handler to be
+ * installed with __try1.
+ */
+typedef EXCEPTION_DISPOSITION (*PEXCEPTION_HANDLER)
+		(struct _EXCEPTION_RECORD*, void*, struct _CONTEXT*, void*);
+
+/*
+ * This is not entirely necessary, but it is the structure installed by
+ * the __try1 primitive below.
+ */
+typedef struct _EXCEPTION_REGISTRATION
+{
+	struct _EXCEPTION_REGISTRATION*	prev;
+	PEXCEPTION_HANDLER		handler;
+} EXCEPTION_REGISTRATION, *PEXCEPTION_REGISTRATION;
+
+typedef EXCEPTION_REGISTRATION EXCEPTION_REGISTRATION_RECORD;
+typedef PEXCEPTION_REGISTRATION PEXCEPTION_REGISTRATION_RECORD;
+
+/*
+ * A macro which installs the supplied exception handler.
+ * Push the pointer to the new handler onto the stack,
+ * then push the pointer to the old registration structure (at fs:0)
+ * onto the stack, then put a pointer to the new registration
+ * structure (i.e. the current stack pointer) at fs:0.
+ */
+#define __try1(pHandler) \
+	__asm__ ("pushl %0;pushl %%fs:0;movl %%esp,%%fs:0;" : : "g" (pHandler));
+
+/*
+ * A macro which (despite its name) *removes* an installed
+ * exception handler. Should be used only in conjunction with the above
+ * install routine __try1.
+ * Move the pointer to the old reg. struct (at the current stack
+ * position) to fs:0, replacing the pointer we installed above,
+ * then add 8 to the stack pointer to get rid of the space we
+ * used when we pushed on our new reg. struct above. Notice that
+ * the stack must be in the exact state at this point that it was
+ * after we did __try1 or this will smash things.
+ */
+#define	__except1	\
+	__asm__ ("movl (%%esp),%%eax;movl %%eax,%%fs:0;addl $8,%%esp;" \
+	 : : : "%eax");
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* Not RC_INVOKED */
+
+#endif	/* _EXCPT_H_ not defined */