coreutils: -Werror=implicit-function-declaration

packages/coreutils/src-hostid.c.patch

@@ -0,0 +1,13 @@
+diff -u -r ../coreutils-8.27/src/hostid.c ./src/hostid.c
+--- ../coreutils-8.27/src/hostid.c	2017-01-01 23:34:24.000000000 +0100
++++ ./src/hostid.c	2017-07-07 00:28:59.202840547 +0200
+@@ -75,7 +75,9 @@
+       usage (EXIT_FAILURE);
+     }
+ 
++#ifndef __ANDROID__
+   id = gethostid ();
++#endif
+ 
+   /* POSIX says gethostid returns a "32-bit identifier" but is silent
+      whether it's sign-extended.  Turn off any sign-extension.  This