diff --git a/src/proto/channel.pro b/src/proto/channel.pro
index e056d5f..53c5dab 100644
--- a/src/proto/channel.pro
+++ b/src/proto/channel.pro
@@ -4,6 +4,7 @@
 void ch_log(channel_T *ch, char *msg);
 void ch_logs(channel_T *ch, char *msg, char *name);
 channel_T *add_channel(void);
+int has_any_channel(void);
 int channel_unref(channel_T *channel);
 int free_unused_channels_contents(int copyID, int mask);
 void free_unused_channels(int copyID, int mask);
diff --git a/src/proto/os_amiga.pro b/src/proto/os_amiga.pro
index b1d0134..b781680 100644
--- a/src/proto/os_amiga.pro
+++ b/src/proto/os_amiga.pro
@@ -36,7 +36,7 @@
 void mch_set_shellsize(void);
 void mch_new_shellsize(void);
 int mch_call_shell(char_u *cmd, int options);
-void mch_breakcheck(void);
+void mch_breakcheck(int force);
 long Chk_Abort(void);
 int mch_expandpath(garray_T *gap, char_u *pat, int flags);
 int mch_has_exp_wildcard(char_u *p);
diff --git a/src/proto/os_unix.pro b/src/proto/os_unix.pro
index 1d025e8..b1e9b8e 100644
--- a/src/proto/os_unix.pro
+++ b/src/proto/os_unix.pro
@@ -61,7 +61,7 @@
 char *mch_job_status(job_T *job);
 int mch_stop_job(job_T *job, char_u *how);
 void mch_clear_job(job_T *job);
-void mch_breakcheck(void);
+void mch_breakcheck(int force);
 int mch_expandpath(garray_T *gap, char_u *path, int flags);
 int mch_expand_wildcards(int num_pat, char_u **pat, int *num_file, char_u ***file, int flags);
 int mch_has_exp_wildcard(char_u *p);
diff --git a/src/proto/os_win32.pro b/src/proto/os_win32.pro
index 19c59ec..4e6af5b 100644
--- a/src/proto/os_win32.pro
+++ b/src/proto/os_win32.pro
@@ -48,7 +48,7 @@
 void mch_write(char_u *s, int len);
 void mch_delay(long msec, int ignoreinput);
 int mch_remove(char_u *name);
-void mch_breakcheck(void);
+void mch_breakcheck(int force);
 long_u mch_total_mem(int special);
 int mch_wrename(WCHAR *wold, WCHAR *wnew);
 int mch_rename(const char *pszOldFile, const char *pszNewFile);
diff --git a/src/proto/ui.pro b/src/proto/ui.pro
index 072e0c4..dbb7213 100644
--- a/src/proto/ui.pro
+++ b/src/proto/ui.pro
@@ -10,6 +10,7 @@
 void ui_set_shellsize(int mustset);
 void ui_new_shellsize(void);
 void ui_breakcheck(void);
+void ui_breakcheck_force(int force);
 void clip_init(int can_use);
 void clip_update_selection(VimClipboard *clip);
 void clip_own_selection(VimClipboard *cbd);