[PATCH] libc: fix _dummy_signal_syscalls name in signalr.c

[andrew@andrewoates.com]

From: Andrew Oates <andrew@andrewoates.com>

I don't understand the purpose of these dummy variables, but they date
back to 2000 and the import of the 2000-02-17 snapshot.
_dummy_link_syscalls is defined in two places, here and linkr.c.  This
updates the symbol name to match the file, so we don't define the same
symbol in two places.
---
 newlib/libc/reent/signalr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/newlib/libc/reent/signalr.c b/newlib/libc/reent/signalr.c
index 863ae7400..e4945102f 100644
--- a/newlib/libc/reent/signalr.c
+++ b/newlib/libc/reent/signalr.c
@@ -17,7 +17,7 @@
 
 #ifdef REENTRANT_SYSCALLS_PROVIDED
 
-int _dummy_link_syscalls = 1;
+int _dummy_signal_syscalls = 1;
 
 #else
 
-- 
2.52.0