runtime: include <syscall.h> and <sys/syscall.h> if available
Fixes Solaris build.
Reviewed-on: https://go-review.googlesource.com/c/162885
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@268940 138bc75d-0d04-0410-961f-82ee72b054a4
diff --git a/gcc/go/gofrontend/MERGE b/gcc/go/gofrontend/MERGE
index 993916e..00bc1e5 100644
--- a/gcc/go/gofrontend/MERGE
+++ b/gcc/go/gofrontend/MERGE
@@ -1,4 +1,4 @@
-a9c1a76e14b66a356d3c3dfb50f1e6138e97733c
+6877c95a5f44c3ab4f492d2000ce07771341d7b7
The first line of this file holds the git revision number of the last
merge done from the gofrontend repository.
diff --git a/libgo/runtime/go-varargs.c b/libgo/runtime/go-varargs.c
index dda9959..cf033af 100644
--- a/libgo/runtime/go-varargs.c
+++ b/libgo/runtime/go-varargs.c
@@ -12,6 +12,12 @@
#include <sys/types.h>
#include <fcntl.h>
#include <sys/ioctl.h>
+#ifdef HAVE_SYSCALL_H
+#include <syscall.h>
+#endif
+#ifdef HAVE_SYS_SYSCALL_H
+#include <sys/syscall.h>
+#endif
/* The syscall package calls C functions. The Go compiler can not
represent a C varargs functions. On some systems it's important
