https://code.google.com/p/go/issues/detail?id=7479

golang-issue-7479.diff

diff -r 065aeab132e1 src/pkg/runtime/defs_windows.go
--- a/src/pkg/runtime/defs_windows.go   Mon Apr 07 12:59:55 2014 -0700
+++ b/src/pkg/runtime/defs_windows.go   Tue Apr 08 23:35:24 2014 +0200
@@ -44,6 +44,7 @@
        SIGINT           = C.SIGINT
        CTRL_C_EVENT     = C.CTRL_C_EVENT
        CTRL_BREAK_EVENT = C.CTRL_BREAK_EVENT
+       CTRL_CLOSE_EVENT = C.CTRL_CLOSE_EVENT

        CONTEXT_CONTROL = C.CONTEXT_CONTROL
        CONTEXT_FULL    = C.CONTEXT_FULL
diff -r 065aeab132e1 src/pkg/runtime/defs_windows_386.h
--- a/src/pkg/runtime/defs_windows_386.h        Mon Apr 07 12:59:55 2014 -0700
+++ b/src/pkg/runtime/defs_windows_386.h        Tue Apr 08 23:35:24 2014 +0200
@@ -17,6 +17,7 @@
        SIGINT                  = 0x2,
        CTRL_C_EVENT            = 0x0,
        CTRL_BREAK_EVENT        = 0x1,
+       CTRL_CLOSE_EVENT        = 0x2,

        CONTEXT_CONTROL = 0x10001,
        CONTEXT_FULL    = 0x10007,
diff -r 065aeab132e1 src/pkg/runtime/defs_windows_amd64.h
--- a/src/pkg/runtime/defs_windows_amd64.h      Mon Apr 07 12:59:55 2014 -0700
+++ b/src/pkg/runtime/defs_windows_amd64.h      Tue Apr 08 23:35:24 2014 +0200
@@ -17,6 +17,7 @@
        SIGINT                  = 0x2,
        CTRL_C_EVENT            = 0x0,
        CTRL_BREAK_EVENT        = 0x1,
+       CTRL_CLOSE_EVENT        = 0x2,

        CONTEXT_CONTROL = 0x100001,
        CONTEXT_FULL    = 0x10000b,
diff -r 065aeab132e1 src/pkg/runtime/os_windows.c
--- a/src/pkg/runtime/os_windows.c      Mon Apr 07 12:59:55 2014 -0700
+++ b/src/pkg/runtime/os_windows.c      Tue Apr 08 23:35:24 2014 +0200
@@ -389,6 +389,7 @@
        switch(type) {
        case CTRL_C_EVENT:
        case CTRL_BREAK_EVENT:
+       case CTRL_CLOSE_EVENT:
                s = SIGINT;
                break;
        default:
diff -r 065aeab132e1 src/pkg/syscall/ztypes_windows.go
--- a/src/pkg/syscall/ztypes_windows.go Mon Apr 07 12:59:55 2014 -0700
+++ b/src/pkg/syscall/ztypes_windows.go Tue Apr 08 23:35:24 2014 +0200
@@ -173,6 +173,7 @@

        CTRL_C_EVENT     = 0
        CTRL_BREAK_EVENT = 1
+       CTRL_CLOSE_EVENT = 2
 )

 const (