https://bugs.gentoo.org/713372#c7

From 45a9a61a7aec59d58bda5ef260ea969b5921eee6 Mon Sep 17 00:00:00 2001
From: Stephan Hartmann <stephan.hartmann@tu-dresden.de>
Date: Wed, 25 Mar 2020 17:54:44 +0100
Subject: [PATCH] fix build with musl-libc

Signed-off-by: Stephan Hartmann <stha09@googlemail.com>
---
 echo/defs.h        |  1 +
 libcommon/getdir.c | 10 ++++++----
 ls/ls.c            |  4 +++-
 test/defs.h        |  1 +
 4 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/echo/defs.h b/echo/defs.h
index e97bccc..be4b9e6 100644
--- a/echo/defs.h
+++ b/echo/defs.h
@@ -31,6 +31,7 @@
 #include <string.h>
 #include <wchar.h>
 #include <unistd.h>
+#include <sys/stat.h>
 
 #if defined (__GLIBC__) && defined (_IO_getc_unlocked)
 #undef	putchar
diff --git a/libcommon/getdir.c b/libcommon/getdir.c
index 245b764..fcc3dc9 100644
--- a/libcommon/getdir.c
+++ b/libcommon/getdir.c
@@ -42,19 +42,21 @@
 #define	getdents(a, b, c)	__getdents64(a, b, c)
 #define	dirent	dirent64
 extern int	getdents(int, struct dirent *, size_t);
-#elif defined	(__GLIBC__) || defined (__FreeBSD__) || defined (_AIX) || \
+#elif defined	(__dietlibc__)
+#include	<dirent.h>
+#include	<unistd.h>
+#elif defined	(__linux__) || defined (__FreeBSD__) || defined (_AIX) || \
 	defined (__NetBSD__) || defined (__OpenBSD__) || \
 	defined (__DragonFly__) || defined (__APPLE__)
 #include	<dirent.h>
+#if !defined (__linux__) || defined(__GLIBC__)
 #define	getdents(a, b, c)	getdirentries((a), (char *)(b), (c), &(db->g_offs))
+#endif
 #if defined (__FreeBSD__) || defined (__NetBSD__) || defined (__OpenBSD__) || \
 	defined (__DragonFly__) || defined (__APPLE__)
 #undef	d_ino
 #endif	/* __FreeBSD__ || __NetBSD__ || __OpenBSD__ || __DragonFly__
 	 || __APPLE__ */
-#elif defined	(__dietlibc__)
-#include	<dirent.h>
-#include	<unistd.h>
 #else		/* !__GLIBC__, !__dietlibc__ */
 #ifdef	__hpux
 #define		_KERNEL
diff --git a/ls/ls.c b/ls/ls.c
index 17186ba..5a1bfdb 100644
--- a/ls/ls.c
+++ b/ls/ls.c
@@ -119,7 +119,9 @@ static char ifmt_c[] = "-pc-d-b--nl-SD--";
 #include <termcap.h>
 #endif	/* USE_TERMCAP */
 
-#if defined (_AIX) || defined (__GLIBC__)
+#if defined (_AIX) || \
+    ( defined (__linux__) && !defined(__dietlibc__) && \
+      !defined(__UCLIBC__) )
 #include <sys/sysmacros.h>
 #endif
 
diff --git a/test/defs.h b/test/defs.h
index e97bccc..be4b9e6 100644
--- a/test/defs.h
+++ b/test/defs.h
@@ -31,6 +31,7 @@
 #include <string.h>
 #include <wchar.h>
 #include <unistd.h>
+#include <sys/stat.h>
 
 #if defined (__GLIBC__) && defined (_IO_getc_unlocked)
 #undef	putchar
-- 
2.23.0