74 | typedef __nlink_t nlink_t;
      |                   ^~~~~~~
In file included from ./sys/types.h:28,
                 from ./stdio.h:58,
                 from closeout.c:25:
///usr/include/x86_64-linux-gnu/sys/types.h:74:1: warning: useless type name in empty declaration
   74 | typedef __nlink_t nlink_t;
      | ^~~~~~~
In file included from closeout.c:19:
../config.h:2680:15: error: two or more data types in declaration specifiers
 2680 | #define pid_t int
      |               ^~~
///usr/include/x86_64-linux-gnu/sys/types.h:97:17: note: in expansion of macro 'pid_t'
   97 | typedef __pid_t pid_t;
      |                 ^~~~~
In file included from ./sys/types.h:28,
                 from ./stdio.h:58,
                 from closeout.c:25:
///usr/include/x86_64-linux-gnu/sys/types.h:97:1: warning: useless type name in empty declaration
   97 | typedef __pid_t pid_t;
      | ^~~~~~~
In file included from ./stdlib.h:36,
                 from areadlinkat-with-size.c:29:
///usr/include/stdlib.h:539:14: warning: conflicting types for built-in function 'malloc'; expected 'void *(long unsigned int)' [-Wbuiltin-declaration-mismatch]
  539 | extern void *malloc (size_t __size) __THROW __attribute_malloc__
      |              ^~~~~~
///usr/include/stdlib.h:395:1: note: 'malloc' is declared in header '<stdlib.h>'
  394 | # include <sys/types.h> /* we need int32_t... */
  +++ |+#include <stdlib.h>
  395 | 
///usr/include/stdlib.h:542:14: warning: conflicting types for built-in function 'calloc'; expected 'void *(long unsigned int,  long unsigned int)' [-Wbuiltin-declaration-mismatch]
  542 | extern void *calloc (size_t __nmemb, size_t __size)
      |              ^~~~~~
///usr/include/stdlib.h:542:14: note: 'calloc' is declared in header '<stdlib.h>'
///usr/include/stdlib.h:550:14: warning: conflicting types for built-in function 'realloc'; expected 'void *(void *, long unsigned int)' [-Wbuiltin-declaration-mismatch]
  550 | extern void *realloc (void *__ptr, size_t __size)
      |              ^~~~~~~
///usr/include/stdlib.h:550:14: note: 'realloc' is declared in header '<stdlib.h>'
In file included from ./stdlib.h:36,
                 from areadlinkat-with-size.c:29:
///usr/include/stdlib.h:580:12: warning: conflicting types for built-in function 'posix_memalign'; expected 'int(void **, long unsigned int,  long unsigned int)' [-Wbuiltin-declaration-mismatch]
  580 | extern int posix_memalign (void **__memptr, size_t __alignment, size_t __size)
      |            ^~~~~~~~~~~~~~
///usr/include/stdlib.h:586:14: warning: conflicting types for built-in function 'aligned_alloc'; expected 'void *(long unsigned int,  long unsigned int)' [-Wbuiltin-declaration-mismatch]
  586 | extern void *aligned_alloc (size_t __alignment, size_t __size)
      |              ^~~~~~~~~~~~~
///usr/include/stdio.h:652:15: warning: conflicting types for built-in function 'fwrite'; expected 'long unsigned int(const void *, long unsigned int,  long unsigned int,  void *)' [-Wbuiltin-declaration-mismatch]
  652 | extern size_t fwrite (const void *__restrict __ptr, size_t __size,
      |               ^~~~~~
///usr/include/stdlib.h:586:14: note: 'aligned_alloc' is declared in header '<stdlib.h>'
///usr/include/stdio.h:652:15: note: 'fwrite' is declared in header '<stdio.h>'
///usr/include/stdio.h:675:15: warning: conflicting types for built-in function 'fwrite_unlocked'; expected 'long unsigned int(const void *, long unsigned int,  long unsigned int,  void *)' [-Wbuiltin-declaration-mismatch]
  675 | extern size_t fwrite_unlocked (const void *__restrict __ptr, size_t __size,
      |               ^~~~~~~~~~~~~~~
backupfile.c:254:3: warning: implicit declaration of function 'closedir'; did you mean 'close'? [-Wimplicit-function-declaration]
  254 |   closedir (dirp);
      |   ^~~~~~~~
      |   close
In file included from ./stddef.h:55,
                 from ./unistd.h:56,
                 from cloexec.c:26:
///usr/lib/gcc/x86_64-linux-gnu/9/include/stddef.h:143:1: warning: useless type name in empty declaration
  143 | typedef __PTRDIFF_TYPE__ ptrdiff_t;
      | ^~~~~~~
In file included from ./unistd.h:56,
                 from cloexec.c:26:
./stddef.h:104:3: error: conflicting types for 'max_align_t'
  104 | } max_align_t;
      |   ^~~~~~~~~~~
In file included from ./stddef.h:55,
                 from ./unistd.h:56,
                 from cloexec.c:26:
///usr/lib/gcc/x86_64-linux-gnu/9/include/stddef.h:426:3: note: previous declaration of 'max_align_t' was here
  426 | } max_align_t;
      |   ^~~~~~~~~~~
In file included from ./stdlib.h:36,
                 from areadlink-with-size.c:28:
///usr/include/stdlib.h:539:14: warning: conflicting types for built-in function 'malloc'; expected 'void *(long unsigned int)' [-Wbuiltin-declaration-mismatch]
  539 | extern void *malloc (size_t __size) __THROW __attribute_malloc__
      |              ^~~~~~
///usr/include/stdlib.h:395:1: note: 'malloc' is declared in header '<stdlib.h>'
  394 | # include <sys/types.h> /* we need int32_t... */
  +++ |+#include <stdlib.h>
  395 | 
///usr/include/stdlib.h:542:14: warning: conflicting types for built-in function 'calloc'; expected 'void *(long unsigned int,  long unsigned int)' [-Wbuiltin-declaration-mismatch]
  542 | extern void *calloc (size_t __nmemb, size_t __size)
      |              ^~~~~~
///usr/include/stdlib.h:542:14: note: 'calloc' is declared in header '<stdlib.h>'
///usr/include/stdlib.h:550:14: warning: conflicting types for built-in function 'realloc'; expected 'void *(void *, long unsigned int)' [-Wbuiltin-declaration-mismatch]
  550 | extern void *realloc (void *__ptr, size_t __size)
      |              ^~~~~~~
///usr/include/stdlib.h:550:14: note: 'realloc' is declared in header '<stdlib.h>'
In file included from argp-parse.c:44:
argp-namefrob.h:123: warning: "fwrite_unlocked" redefined
  123 | # define fwrite_unlocked(w,x,y,z) fwrite (w,x,y,z)
      | 
In file included from ///usr/include/stdio.h:864,
                 from ./stdio.h:43,
                 from ./getopt.h:56,
                 from argp-parse.c:30:
/usr/include/x86_64-linux-gnu/bits/stdio.h:171: note: this is the location of the previous definition
  171 | # define fwrite_unlocked(ptr, size, n, stream) \
      | 
In file included from ./stdlib.h:36,
                 from areadlink-with-size.c:28:
///usr/include/stdlib.h:580:12: warning: conflicting types for built-in function 'posix_memalign'; expected 'int(void **, long unsigned int,  long unsigned int)' [-Wbuiltin-declaration-mismatch]
  580 | extern int posix_memalign (void **__memptr, size_t __alignment, size_t __size)
      |            ^~~~~~~~~~~~~~
///usr/include/stdlib.h:586:14: warning: conflicting types for built-in function 'aligned_alloc'; expected 'void *(long unsigned int,  long unsigned int)' [-Wbuiltin-declaration-mismatch]
  586 | extern void *aligned_alloc (size_t __alignment, size_t __size)
      |              ^~~~~~~~~~~~~
///usr/include/stdlib.h:586:14: note: 'aligned_alloc' is declared in header '<stdlib.h>'
make[5]: *** [Makefile:1834: argp-version-etc.o] Error 1
In file included from ./stddef.h:55,
                 from ./stdio.h:53,
                 from close-stream.h:1,
                 from close-stream.c:20:
///usr/lib/gcc/x86_64-linux-gnu/9/include/stddef.h:143:1: warning: useless type name in empty declaration
  143 | typedef __PTRDIFF_TYPE__ ptrdiff_t;
      | ^~~~~~~
.....In file included from ./stdio.h:53,
                 from close-stream.h:1,
                 from close-stream.c:20:
./stddef.h:104:3: error: conflicting types for 'max_align_t'
  104 | } max_align_t;
      |   ^~~~~~~~~~~
make[5]: *** [Makefile:1834: backupfile.o] Error 1
In file included from ./stddef.h:55,
                 from ./stdio.h:53,
                 from close-stream.h:1,
                 from close-stream.c:20:
///usr/lib/gcc/x86_64-linux-gnu/9/include/stddef.h:426:3: note: previous declaration of 'max_align_t' was here
  426 | } max_align_t;
      |   ^~~~~~~~~~~
In file included from close-stream.c:18:
../config.h:2634:15: error: two or more data types in declaration specifiers
 2634 | #define ino_t unsigned
      |               ^~~~~~~~
///usr/include/x86_64-linux-gnu/sys/types.h:47:17: note: in expansion of macro 'ino_t'
   47 | typedef __ino_t ino_t;
      |                 ^~~~~
In file included from ./sys/types.h:28,
                 from ./stdio.h:58,
                 from close-stream.h:1,
                 from close-stream.c:20:
///usr/include/x86_64-linux-gnu/sys/types.h:47:1: warning: useless type name in empty declaration
   47 | typedef __ino_t ino_t;
      | ^~~~~~~
In file included from close-stream.c:18:
../config.h:2516:15: error: two or more data types in declaration specifiers
 2516 | #define dev_t unsigned
      |               ^~~~~~~~
///usr/include/x86_64-linux-gnu/sys/types.h:59:17: note: in expansion of macro 'dev_t'
   59 | typedef __dev_t dev_t;
      |                 ^~~~~
In file included from ./sys/types.h:28,
                 from ./stdio.h:58,
                 from close-stream.h:1,
                 from close-stream.c:20:
///usr/include/x86_64-linux-gnu/sys/types.h:59:1: warning: useless type name in empty declaration
   59 | typedef __dev_t dev_t;
      | ^~~~~~~
In file included from close-stream.c:18:
../config.h:2668:16: error: two or more data types in declaration specifiers
 2668 | #define mode_t int
      |                ^~~
///usr/include/x86_64-linux-gnu/sys/types.h:69:18: note: in expansion of macro 'mode_t'
   69 | typedef __mode_t mode_t;
      |                  ^~~~~~
In file included from ./sys/types.h:28,
                 from ./stdio.h:58,
                 from close-stream.h:1,
                 from close-stream.c:20:
///usr/include/x86_64-linux-gnu/sys/types.h:69:1: warning: useless type name in empty declaration
   69 | typedef __mode_t mode_t;
      | ^~~~~~~
In file included from close-stream.c:18:
../config.h:2674:17: error: two or more data types in declaration specifiers
 2674 | #define nlink_t int
      |                 ^~~
///usr/include/x86_64-linux-gnu/sys/types.h:74:19: note: in expansion of macro 'nlink_t'
   74 | typedef __nlink_t nlink_t;
      |                   ^~~~~~~
In file included from ./sys/types.h:28,
                 from ./stdio.h:58,
                 from close-stream.h:1,
                 from close-stream.c:20:
///usr/include/x86_64-linux-gnu/sys/types.h:74:1: warning: useless type name in empty declaration
   74 | typedef __nlink_t nlink_t;
      | ^~~~~~~
In file included from close-stream.c:18:
../config.h:2680:15: error: two or more data types in declaration specifiers
 2680 | #define pid_t int
      |               ^~~
///usr/include/x86_64-linux-gnu/sys/types.h:97:17: note: in expansion of macro 'pid_t'
   97 | typedef __pid_t pid_t;
      |                 ^~~~~
In file included from ./sys/types.h:28,
                 from ./stdio.h:58,
                 from close-stream.h:1,
                 from close-stream.c:20:
///usr/include/x86_64-linux-gnu/sys/types.h:97:1: warning: useless type name in empty declaration
   97 | typedef __pid_t pid_t;
      | ^~~~~~~
make[5]: *** [Makefile:1834: careadlinkat.o] Error 1
make[5]: *** [Makefile:1834: cloexec.o] Error 1
make[5]: *** [Makefile:1834: argp-fmtstream.o] Error 1
In file included from argp-help.c:52:
argp-namefrob.h:123: warning: "fwrite_unlocked" redefined
  123 | # define fwrite_unlocked(w,x,y,z) fwrite (w,x,y,z)
      | 
In file included from ///usr/include/stdio.h:864,
                 from ./stdio.h:43,
                 from argp.h:22,
                 from argp-help.c:50:
/usr/include/x86_64-linux-gnu/bits/stdio.h:171: note: this is the location of the previous definition
  171 | # define fwrite_unlocked(ptr, size, n, stream) \
      | 
In file included from opendir-safer.c:20:
../config.h:2634:15: error: two or more data types in declaration specifiers
 2634 | #define ino_t unsigned
      |               ^~~~~~~~
///usr/include/x86_64-linux-gnu/sys/types.h:47:17: note: in expansion of macro 'ino_t'
   47 | typedef __ino_t ino_t;
      |                 ^~~~~
In file included from ./sys/types.h:28,
                 from ./dirent.h:34,
                 from dirent-safer.h:20,
                 from opendir-safer.c:22:
///usr/include/x86_64-linux-gnu/sys/types.h:47:1: warning: useless type name in empty declaration
   47 | typedef __ino_t ino_t;
      | ^~~~~~~
In file included from opendir-safer.c:20:
../config.h:2516:15: error: two or more data types in declaration specifiers
 2516 | #define dev_t unsigned
      |               ^~~~~~~~
///usr/include/x86_64-linux-gnu/sys/types.h:59:17: note: in expansion of macro 'dev_t'
   59 | typedef __dev_t dev_t;
      |                 ^~~~~
In file included from ./sys/types.h:28,
                 from ./dirent.h:34,
                 from dirent-safer.h:20,
                 from opendir-safer.c:22:
///usr/include/x86_64-linux-gnu/sys/types.h:59:1: warning: useless type name in empty declaration
   59 | typedef __dev_t dev_t;
      | ^~~~~~~
In file included from opendir-safer.c:20:
../config.h:2668:16: error: two or more data types in declaration specifiers
 2668 | #define mode_t int
      |                ^~~
///usr/include/x86_64-linux-gnu/sys/types.h:69:18: note: in expansion of macro 'mode_t'
   69 | typedef __mode_t mode_t;
      |                  ^~~~~~
In file included from ./sys/types.h:28,
                 from ./dirent.h:34,
                 from dirent-safer.h:20,
                 from opendir-safer.c:22:
///usr/include/x86_64-linux-gnu/sys/types.h:69:1: warning: useless type name in empty declaration
   69 | typedef __mode_t mode_t;
      | ^~~~~~~
In file included from opendir-safer.c:20:
../config.h:2674:17: error: two or more data types in declaration specifiers
 2674 | #define nlink_t int
      |                 ^~~
///usr/include/x86_64-linux-gnu/sys/types.h:74:19: note: in expansion of macro 'nlink_t'
   74 | typedef __nlink_t nlink_t;
      |                   ^~~~~~~
In file included from ./sys/types.h:28,
                 from ./dirent.h:34,
                 from dirent-safer.h:20,
                 from opendir-safer.c:22:
///usr/include/x86_64-linux-gnu/sys/types.h:74:1: warning: useless type name in empty declaration
   74 | typedef __nlink_t nlink_t;
      | ^~~~~~~
In file included from opendir-safer.c:20:
../config.h:2677:15: error: two or more data types in declaration specifiers
 2677 | #define off_t long int
      |               ^~~~
///usr/include/x86_64-linux-gnu/sys/types.h:85:17: note: in expansion of macro 'off_t'
   85 | typedef __off_t off_t;
      |                 ^~~~~
../config.h:2677:20: error: two or more data types in declaration specifiers
 2677 | #define off_t long int
      |                    ^~~
///usr/include/x86_64-linux-gnu/sys/types.h:85:17: note: in expansion of macro 'off_t'
   85 | typedef __off_t off_t;
      |                 ^~~~~
In file included from ./sys/types.h:28,
                 from ./dirent.h:34,
                 from dirent-safer.h:20,
                 from opendir-safer.c:22:
///usr/include/x86_64-linux-gnu/sys/types.h:85:1: warning: useless type name in empty declaration
   85 | typedef __off_t off_t;
      | ^~~~~~~
In file included from opendir-safer.c:20:
../config.h:2680:15: error: two or more data types in declaration specifiers
 2680 | #define pid_t int
      |               ^~~
///usr/include/x86_64-linux-gnu/sys/types.h:97:17: note: in expansion of macro 'pid_t'
   97 | typedef __pid_t pid_t;
      |                 ^~~~~
In file included from ./sys/types.h:28,
                 from ./dirent.h:34,
                 from dirent-safer.h:20,
                 from opendir-safer.c:22:
///usr/include/x86_64-linux-gnu/sys/types.h:97:1: warning: useless type name in empty declaration
   97 | typedef __pid_t pid_t;
      | ^~~~~~~
In file included from opendir-safer.c:20:
../config.h:2749:17: error: two or more data types in declaration specifiers
 2749 | #define ssize_t int
      |                 ^~~
///usr/include/x86_64-linux-gnu/sys/types.h:108:19: note: in expansion of macro 'ssize_t'
  108 | typedef __ssize_t ssize_t;
      |                   ^~~~~~~
In file included from ./sys/types.h:28,
                 from ./dirent.h:34,
                 from dirent-safer.h:20,
                 from opendir-safer.c:22:
///usr/include/x86_64-linux-gnu/sys/types.h:108:1: warning: useless type name in empty declaration
  108 | typedef __ssize_t ssize_t;
      | ^~~~~~~
In file included from opendir-safer.c:20:
../config.h:2746:16: error: duplicate 'unsigned'
 2746 | #define size_t unsigned int
      |                ^~~~~~~~
///usr/lib/gcc/x86_64-linux-gnu/9/include/stddef.h:209:23: note: in expansion of macro 'size_t'
  209 | typedef __SIZE_TYPE__ size_t;
      |                       ^~~~~~
../config.h:2746:25: error: two or more data types in declaration specifiers
 2746 | #define size_t unsigned int
      |                         ^~~
///usr/lib/gcc/x86_64-linux-gnu/9/include/stddef.h:209:23: note: in expansion of macro 'size_t'
  209 | typedef __SIZE_TYPE__ size_t;
      |                       ^~~~~~
In file included from ./stddef.h:45,
                 from ///usr/include/x86_64-linux-gnu/sys/types.h:144,
                 from ./sys/types.h:28,
                 from ./dirent.h:34,
                 from dirent-safer.h:20,
                 from opendir-safer.c:22:
///usr/lib/gcc/x86_64-linux-gnu/9/include/stddef.h:209:1: warning: useless type name in empty declaration
  209 | typedef __SIZE_TYPE__ size_t;
      | ^~~~~~~
In file included from close-stream.c:28:
unlocked-io.h:96: warning: "fwrite_unlocked" redefined
   96 | #  define fwrite_unlocked(w,x,y,z) fwrite (w,x,y,z)
      | 
In file included from ///usr/include/stdio.h:864,
                 from ./stdio.h:43,
                 from close-stream.h:1,
                 from close-stream.c:20:
/usr/include/x86_64-linux-gnu/bits/stdio.h:171: note: this is the location of the previous definition
  171 | # define fwrite_unlocked(ptr, size, n, stream) \
      | 
make[5]: *** [Makefile:1834: argp-parse.o] Error 1
make[5]: *** [Makefile:1834: areadlinkat-with-size.o] Error 1
In file included from ./string.h:41,
                 from gettext.h:184,
                 from closeout.c:28:
///usr/include/string.h:43:14: warning: conflicting types for built-in function 'memcpy'; expected 'void *(void *, const void *, long unsigned int)' [-Wbuiltin-declaration-mismatch]
   43 | extern void *memcpy (void *__restrict __dest, const void *__restrict __src,
      |              ^~~~~~
///usr/include/string.h:34:1: note: 'memcpy' is declared in header '<string.h>'
   33 | #include <stddef.h>
  +++ |+#include <string.h>
   34 | 
///usr/include/string.h:47:14: warning: conflicting types for built-in function 'memmove'; expected 'void *(void *, const void *, long unsigned int)' [-Wbuiltin-declaration-mismatch]
   47 | extern void *memmove (void *__dest, const void *__src, size_t __n)
      |              ^~~~~~~
///usr/include/string.h:47:14: note: 'memmove' is declared in header '<string.h>'
///usr/include/string.h:61:14: warning: conflicting types for built-in function 'memset'; expected 'void *(void *, int,  long unsigned int)' [-Wbuiltin-declaration-mismatch]
   61 | extern void *memset (void *__s, int __c, size_t __n) __THROW __nonnull ((1));
      |              ^~~~~~
///usr/include/string.h:61:14: note: 'memset' is declared in header '<string.h>'
///usr/include/string.h:64:12: warning: conflicting types for built-in function 'memcmp'; expected 'int(const void *, const void *, long unsigned int)' [-Wbuiltin-declaration-mismatch]
   64 | extern int memcmp (const void *__s1, const void *__s2, size_t __n)
      |            ^~~~~~
///usr/include/string.h:64:12: note: 'memcmp' is declared in header '<string.h>'
///usr/include/string.h:91:14: warning: conflicting types for built-in function 'memchr'; expected 'void *(const void *, int,  long unsigned int)' [-Wbuiltin-declaration-mismatch]
   91 | extern void *memchr (const void *__s, int __c, size_t __n)
      |              ^~~~~~
///usr/include/string.h:91:14: note: 'memchr' is declared in header '<string.h>'
///usr/include/string.h:125:14: warning: conflicting types for built-in function 'strncpy'; expected 'char *(char *, const char *, long unsigned int)' [-Wbuiltin-declaration-mismatch]
  125 | extern char *strncpy (char *__restrict __dest,
      |              ^~~~~~~
///usr/include/string.h:125:14: note: 'strncpy' is declared in header '<string.h>'
///usr/include/string.h:133:14: warning: conflicting types for built-in function 'strncat'; expected 'char *(char *, const char *, long unsigned int)' [-Wbuiltin-declaration-mismatch]
  133 | extern char *strncat (char *__restrict __dest, const char *__restrict __src,
      |              ^~~~~~~
///usr/include/string.h:133:14: note: 'strncat' is declared in header '<string.h>'
///usr/include/string.h:140:12: warning: conflicting types for built-in function 'strncmp'; expected 'int(const char *, const char *, long unsigned int)' [-Wbuiltin-declaration-mismatch]
  140 | extern int strncmp (const char *__s1, const char *__s2, size_t __n)
      |            ^~~~~~~
///usr/include/string.h:140:12: note: 'strncmp' is declared in header '<string.h>'
In file included from ./string.h:41,
                 from gettext.h:184,
                 from closeout.c:28:
///usr/include/string.h:175:14: warning: conflicting types for built-in function 'strndup'; expected 'char *(const char *, long unsigned int)' [-Wbuiltin-declaration-mismatch]
  175 | extern char *strndup (const char *__string, size_t __n)
      |              ^~~~~~~
///usr/include/string.h:273:15: warning: conflicting types for built-in function 'strcspn'; expected 'long unsigned int(const char *, const char *)' [-Wbuiltin-declaration-mismatch]
  273 | extern size_t strcspn (const char *__s, const char *__reject)
      |               ^~~~~~~
///usr/include/string.h:273:15: note: 'strcspn' is declared in header '<string.h>'
///usr/include/string.h:277:15: warning: conflicting types for built-in function 'strspn'; expected 'long unsigned int(const char *, const char *)' [-Wbuiltin-declaration-mismatch]
  277 | extern size_t strspn (const char *__s, const char *__accept)
      |               ^~~~~~
///usr/include/string.h:277:15: note: 'strspn' is declared in header '<string.h>'
///usr/include/string.h:378:14: warning: conflicting types for built-in function 'mempcpy'; expected 'void *(void *, const void *, long unsigned int)' [-Wbuiltin-declaration-mismatch]
  378 | extern void *mempcpy (void *__restrict __dest,
      |              ^~~~~~~
///usr/include/string.h:385:15: warning: conflicting types for built-in function 'strlen'; expected 'long unsigned int(const char *)' [-Wbuiltin-declaration-mismatch]
  385 | extern size_t strlen (const char *__s)
      |               ^~~~~~
///usr/include/string.h:385:15: note: 'strlen' is declared in header '<string.h>'
make[5]: *** [Makefile:1834: close-stream.o] Error 1
///usr/include/string.h:391:15: warning: conflicting types for built-in function 'strnlen'; expected 'long unsigned int(const char *, long unsigned int)' [-Wbuiltin-declaration-mismatch]
  391 | extern size_t strnlen (const char *__string, size_t __maxlen)
      |               ^~~~~~~
In file included from ./strings.h:34,
                 from ///usr/include/string.h:432,
                 from ./string.h:41,
                 from gettext.h:184,
                 from closeout.c:28:
///usr/include/strings.h:34:12: warning: conflicting types for built-in function 'bcmp'; expected 'int(const void *, const void *, long unsigned int)' [-Wbuiltin-declaration-mismatch]
   34 | extern int bcmp (const void *__s1, const void *__s2, size_t __n)
      |            ^~~~
///usr/include/strings.h:38:13: warning: conflicting types for built-in function 'bcopy'; expected 'void(const void *, void *, long unsigned int)' [-Wbuiltin-declaration-mismatch]
   38 | extern void bcopy (const void *__src, void *__dest, size_t __n)
      |             ^~~~~
///usr/include/strings.h:42:13: warning: conflicting types for built-in function 'bzero'; expected 'void(void *, long unsigned int)' [-Wbuiltin-declaration-mismatch]
   42 | extern void bzero (void *__s, size_t __n) __THROW __nonnull ((1));
      |             ^~~~~
///usr/include/strings.h:120:12: warning: conflicting types for built-in function 'strncasecmp'; expected 'int(const char *, const char *, long unsigned int)' [-Wbuiltin-declaration-mismatch]
  120 | extern int strncasecmp (const char *__s1, const char *__s2, size_t __n)
      |            ^~~~~~~~~~~
In file included from ./string.h:41,
                 from gettext.h:184,
                 from closeout.c:28:
///usr/include/string.h:460:14: warning: conflicting types for built-in function 'stpncpy'; expected 'char *(char *, const char *, long unsigned int)' [-Wbuiltin-declaration-mismatch]
  460 | extern char *stpncpy (char *__restrict __dest,
      |              ^~~~~~~
make[5]: *** [Makefile:1834: areadlink-with-size.o] Error 1
make[5]: *** [Makefile:1834: closeout.o] Error 1
In file included from ./stddef.h:55,
                 from ./unistd.h:56,
                 from opendir-safer.c:25:
///usr/lib/gcc/x86_64-linux-gnu/9/include/stddef.h:143:1: warning: useless type name in empty declaration
  143 | typedef __PTRDIFF_TYPE__ ptrdiff_t;
      | ^~~~~~~
In file included from ./unistd.h:56,
                 from opendir-safer.c:25:
./stddef.h:104:3: error: conflicting types for 'max_align_t'
  104 | } max_align_t;
      |   ^~~~~~~~~~~
In file included from ./stddef.h:55,
                 from ./unistd.h:56,
                 from opendir-safer.c:25:
///usr/lib/gcc/x86_64-linux-gnu/9/include/stddef.h:426:3: note: previous declaration of 'max_align_t' was here
  426 | } max_align_t;
      |   ^~~~~~~~~~~
opendir-safer.c: In function 'opendir_safer':
opendir-safer.c:33:13: warning: implicit declaration of function 'opendir'; did you mean 'fdopendir'? [-Wimplicit-function-declaration]
   33 |   DIR *dp = opendir (name);
      |             ^~~~~~~
      |             fdopendir
opendir-safer.c:33:13: warning: initialization of 'DIR *' {aka 'struct gl_directory *'} from 'int' makes pointer from integer without a cast [-Wint-conversion]
opendir-safer.c:69:11: warning: implicit declaration of function 'closedir'; did you mean 'close'? [-Wimplicit-function-declaration]
   69 |           closedir (dp);
      |           ^~~~~~~~
      |           close
make[5]: *** [Makefile:1834: opendir-safer.o] Error 1
make[5]: *** [Makefile:1834: argp-help.o] Error 1
make[5]: Leaving directory '/tmp/instance-0/output-1/build/host-tar-1.29/gnu'
make[4]: *** [Makefile:1854: all-recursive] Error 1
make[4]: Leaving directory '/tmp/instance-0/output-1/build/host-tar-1.29/gnu'
make[3]: *** [Makefile:1524: all] Error 2
make[3]: Leaving directory '/tmp/instance-0/output-1/build/host-tar-1.29/gnu'
make[2]: *** [Makefile:1338: all-recursive] Error 1
make[2]: Leaving directory '/tmp/instance-0/output-1/build/host-tar-1.29'
make[1]: *** [Makefile:1277: all] Error 2
make[1]: Leaving directory '/tmp/instance-0/output-1/build/host-tar-1.29'
make: *** [package/pkg-generic.mk:269: /tmp/instance-0/output-1/build/host-tar-1.29/.stamp_built] Error 2
make: *** Waiting for unfinished jobs....
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  1800K .......... .......... .......... ......               100% 50.0K=31s

2020-05-14 19:08:02 (59.8 KB/s) - '/tmp/instance-0/output-1/build/.qtsvg-everywhere-src-5.14.2.tar.xz.ZRPaWi/output' saved [1880100/1880100]

qtsvg-everywhere-src-5.14.2.tar.xz: OK (sha256: c7d7faa01a3e7a6e4d38fafcec5529a488258218749779e6fa0e09a21173b5a1)
make: Leaving directory '/tmp/instance-0/buildroot'