From 03c6a554cf066cc24eeb009d4233f4e5117a513c Mon Sep 17 00:00:00 2001
From: "A. Wilcox" <AWilcox@Wilcox-Tech.com>
Date: Thu, 26 Oct 2017 22:36:43 -0500
Subject: sysctl: clean headers, ensure SYS__sysctl is def'd

Linux/aarch64 does not define SYS__sysctl.  This caused build errors in
Alpine[1] and Void[2].

While I'm in here, fix up headers since we don't need errno or strings.

[1]: https://git.alpinelinux.org/cgit/aports/commit/?id=400a9d40
[2]: https://github.com/voidlinux/void-packages/commit/a7aa924e
---
 libgcompat/sysctl.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/libgcompat/sysctl.c b/libgcompat/sysctl.c
index 5671055..a14c2b8 100644
--- a/libgcompat/sysctl.c
+++ b/libgcompat/sysctl.c
@@ -1,9 +1,9 @@
-#include <errno.h>
-#include <string.h>
-#include <unistd.h>
+#include <unistd.h>	/* size_t */
 #include <sys/syscall.h>
 
 
+#ifdef SYS__sysctl
+
 struct __sysctl_args {
 	int *name;
 	int nlen;
@@ -26,3 +26,5 @@ int sysctl (int *name, int nlen, void *oldval, size_t *oldlenp, void *newval, si
 
 	return syscall(SYS__sysctl, &args);
 }
+
+#endif /* SYS__sysctl */
-- 
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