Revert "fix"

This reverts commit 9916032c7a.

mlvpn/patches/010-musl-fix.patch

@@ -1,11 +0,0 @@
---- a/src/privsep.c
-+++ b/src/privsep.c
-@@ -778,7 +778,7 @@ sig_got_chld(int sig)
-     pid_t    pid;
- 
-     do {
--        pid = waitpid(WAIT_ANY, NULL, WNOHANG);
-+        pid = waitpid(-1, NULL, WNOHANG);
-         if (pid == child_pid && cur_state < STATE_QUIT)
-             cur_state = STATE_QUIT;
-     } while (pid > 0 || (pid == -1 && errno == EINTR));

mlvpn/patches/020-remove-cdefs.patch

@@ -0,0 +1,33 @@
+--- a/src/vis.h.anc	2021-09-24 22:00:03.900321816 +0200
++++ b/src/vis.h	2021-09-24 22:00:21.500028958 +0200
+@@ -79,7 +79,6 @@
+  */
+ #define	UNVIS_END	1	/* no more characters */
+ 
+-#include <sys/cdefs.h>
+ 
+ __BEGIN_DECLS
+ char	*vis(char *, int, int, int);
+--- a/src/vis.h.anc	2021-09-24 22:05:19.543069573 +0200
++++ b/src/vis.h	2021-09-24 22:06:00.430389216 +0200
+@@ -80,7 +80,9 @@
+ #define	UNVIS_END	1	/* no more characters */
+ 
+ 
+-__BEGIN_DECLS
++#ifdef __cplusplus
++extern "C" {
++#endif
+ char	*vis(char *, int, int, int);
+ int	strvis(char *, const char *, int);
+ int	stravis(char **, const char *, int);
+@@ -93,6 +95,8 @@
+ ssize_t strnunvis(char *, const char *, size_t)
+ 		__attribute__ ((__bounded__(__string__,1,3)));
+ 
+-__END_DECLS
++#ifdef __cplusplus
++}
++#endif
+ 
+ #endif /* !HAVE_STRNVIS || BROKEN_STRNVIS */