some bug fixes

[Fifer, Eric]

These diffs are against the Feb-4 snapshot (more recents
snapshots don't seem to be working for me) ...

+++ newlib/ChangeLog    Fri Feb 18 13:31:18 2000
@@ -1,3 +1,9 @@
+Fri Feb 18 13:25:59 2000  Eric Fifer <efifer@sanwaint.com>
+
+       * libc/stdio/findfp.c (__sinit): stdout should be fully
+       buffered by default, code in makebuf.c (__smakebuf) already
+       asserts line buffering on tty devices.


+++ winsup/cygwin/ChangeLog     Fri Feb 18 13:25:02 2000
@@ -1,3 +1,10 @@
+Fri Feb 18 13:13:52 2000  Eric Fifer <efifer@sanwaint.com>
+
+       * exceptions.cc (set_process_mask): flush pending signals
+       freed by sigmask change.
+       * select.cc (peek_pipe): ignore failure of PeekNamedPipe
+       when except_selected on write end of a pipe.

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