Fix build on architectures for which arch_sigreturn is not implemented

This complements commit 527b42ff8da3f52fa7c48eb766b2b57fb0f0b977.

* linux/arch_sigreturn.c (arch_sigreturn): Define.

diff --git a/linux/arch_sigreturn.c b/linux/arch_sigreturn.c
index 80ec984854aa3297ccc8e1229962021051e37379..73a2b103e0ec8882068f3a5d9440fc44a31781e1 100644 (file)
--- a/linux/arch_sigreturn.c
+++ b/linux/arch_sigreturn.c
@@ -1 +1,6 @@
 #warning sigreturn/rt_sigreturn signal mask decoding is not implemented for this architecture
+
+static void
+arch_sigreturn(struct tcb *tcp)
+{
+}