Export the kill_process_tree() function

... for use in kill.exe.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

Author: dscho

winsup/cygwin/common.din

@@ -33,6 +33,7 @@ sys_errlist = _sys_errlist DATA
 sys_nerr = _sys_nerr DATA
 sys_sigabbrev DATA
 sys_siglist DATA
+kill_process_tree DATA
 
 # Exported functions
 _Exit SIGFE

winsup/cygwin/include/cygwin/signal.h

@@ -410,11 +410,12 @@ int siginterrupt (int, int);
 #ifdef __INSIDE_CYGWIN__
 extern const char *sys_sigabbrev[];
 extern const char *sys_siglist[];
+extern void kill_process_tree(pid_t pid, int sig);
 #else
 extern const char __declspec(dllimport) *sys_sigabbrev[];
 extern const char __declspec(dllimport) *sys_siglist[];
+extern void __declspec(dllimport) kill_process_tree(pid_t pid, int sig);
 #endif
-void kill_process_tree(pid_t pid, int sig);
 
 #ifdef __cplusplus
 }

winsup/cygwin/include/cygwin/version.h

@@ -469,6 +469,7 @@ details. */
   302: Export nl_langinfo_l.
   303: Export pthread_getname_np, pthread_setname_np.
   304: Export strerror_l, strptime_l, wcsftime_l.
+  305: Export kill_process_tree.
 
   Note that we forgot to bump the api for ualarm, strtoll, strtoull,
   sigaltstack, sethostname. */