* Makefile.in: Add some more optimization flags for cygwait, malloc and path. Explain

why -fomit-frame-pointer doesn't work right for passwd.o and path.o.  Add
-static to link command line for cygwin0.dll.
* fhandler_disk_file.cc (fhandler_disk_file::facl): Reorganize slightly to
silence compiler warning when compiling with -fstack-check.
* net.cc (inet_ntop6): Initialize structure members to silence compiler warning
when compiling with -fstack-check.
* pseudo-reloc.cc (_pei386_runtime_relocator): Make this a C function.  Detect
NULL u.
* winsup.h (_pei386_runtime_relocator): Declare this as extern "C".
* lib/_cygwin_crt0_common.cc (_pei386_runtime_relocator): Call with NULL
argument.
* signal.cc (sigaction_worker): Eliminate last argument.  Let callers report
their own strace info.  Regparmize.
(sigaction): Reflect sigaction_worker changes.
(siginterrupt): Ditto.
* exceptions.cc: Update copyright.

winsup/cygwin/lib/_cygwin_crt0_common.cc

@@ -49,7 +49,6 @@ extern "C"
 {
 char **environ;
 int _fmode;
-void _pei386_runtime_relocator (void);
 
 extern char __RUNTIME_PSEUDO_RELOC_LIST__;
 extern char __RUNTIME_PSEUDO_RELOC_LIST_END__;
@@ -155,7 +154,7 @@ _cygwin_crt0_common (MainFunc f, per_process *u)
   u->image_base = &_image_base__;
   /* This is actually a dummy call to force the linker to load this
      symbol for older apps which need it.  */
-  _pei386_runtime_relocator ();
+  _pei386_runtime_relocator (NULL);
   return 1;
 }
 } /* "C" */