Building with the Bionic Beaver cross compilers fails which probably
means we were getting this as a side effect before. Include the
correct header to get at these bits.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 risu_reginfo_aarch64.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/risu_reginfo_aarch64.c b/risu_reginfo_aarch64.c
index e3fadde..3bb4339 100644
--- a/risu_reginfo_aarch64.c
+++ b/risu_reginfo_aarch64.c
@@ -13,6 +13,7 @@
 #include <stdio.h>
 #include <ucontext.h>
 #include <string.h>
+#include <signal.h> /* for FPSIMD_MAGIC */
 
 #include "risu.h"
 #include "risu_reginfo_aarch64.h"
-- 
2.17.1