[newlib-cygwin] Cygwin: add missing pragma

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=792b1c6a6d4acee79e1287369498f6ad8e75c1bf

commit 792b1c6a6d4acee79e1287369498f6ad8e75c1bf
Author:     Corinna Vinschen <corinna@vinschen.de>
AuthorDate: Wed Dec 7 21:17:10 2022 +0100
Commit:     Corinna Vinschen <corinna@vinschen.de>
CommitDate: Wed Dec 7 21:18:24 2022 +0100

    Cygwin: add missing pragma
    
    Add missing "#pragma GCC diagnostic push" to the pragma bracket
    guarding the srandom call.
    
    Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

Diff:
---
 winsup/cygwin/random.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/winsup/cygwin/random.cc b/winsup/cygwin/random.cc
index 163fc040cef5..6dd7e1d8debe 100644
--- a/winsup/cygwin/random.cc
+++ b/winsup/cygwin/random.cc
@@ -307,6 +307,7 @@ srandomdev()
 		gettimeofday(&tv, NULL);
 		/* Avoid a compiler warning when we really want to get at the
 		   junk in an uninitialized variable. */
+#pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
 		srandom((getpid() << 16) ^ tv.tv_sec ^ tv.tv_usec ^ junk);
 #pragma GCC diagnostic pop