Description:
------------
I'm getting the following when trying to compile:

/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:315:2: error: unknown type
      name 'HEADER'
        HEADER qb1;
        ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:350:13: error: use of
      undeclared identifier 'T_MX'
        int type = T_MX, i;
                   ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:370:45: error: use of
      undeclared identifier 'T_A'
                if (!strcasecmp("A",     rectype)) type = T_A;
                                                          ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:403:39: error: use of
      undeclared identifier 'C_IN'
        i = php_dns_search(handle, hostname, C_IN, type, ans, sizeof(ans));
                                             ^
ext/standard/php_dns.h:28:35: note: expanded from macro 'php_dns_search'
        ((int)dns_search(res, dname, class, type, answer, anslen, (struc...
                                     ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:441:2: warning: implicit
      declaration of function 'GETSHORT' is invalid in C99
      [-Wimplicit-function-declaration]
        GETSHORT(type, cp);
        ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:443:2: warning: implicit
      declaration of function 'GETLONG' is invalid in C99
      [-Wimplicit-function-declaration]
        GETLONG(ttl, cp);
        ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:446:23: error: use of
      undeclared identifier 'T_ANY'
        if (type_to_fetch != T_ANY && type != type_to_fetch) {
                             ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:540:39: warning: passing
      'u_char *' (aka 'unsigned char *') to parameter of type 'const char *'
      converts between pointers to integer types with different sign
      [-Wpointer-sign]
  ...add_next_index_stringl(entries, cp + l1 + 1, n, 1);
                                     ^~~~~~~~~~~
/Users/username/Downloads/php-5.6.1/Zend/zend_API.h:418:60: note: passing argument
      to parameter 'str' here
ZEND_API int add_next_index_stringl(zval *arg, const char *str, uint len...
                                                           ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:548:41: warning: passing
      'u_char *' (aka 'unsigned char *') to parameter of type 'char *' converts
      between pointers to integer types with different sign [-Wpointer-sign]
                                add_assoc_stringl(*subarray, "txt", tp, l2, 0);
                                                                    ^~
/Users/username/Downloads/php-5.6.1/Zend/zend_API.h:394:123: note: expanded from
      macro 'add_assoc_stringl'
  ...__duplicate) add_assoc_stringl_ex(__arg, __key, strlen(__key)+1, __str, ...
                                                                      ^
/Users/username/Downloads/php-5.6.1/Zend/zend_API.h:385:83: note: passing argument
      to parameter 'str' here
  ...*arg, const char *key, uint key_len, char *str, uint length, int duplica...
                                                ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:769:2: error: use of
      undeclared identifier 'HEADER'
        HEADER *hp;
        ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:769:10: error: use of
      undeclared identifier 'hp'
        HEADER *hp;
                ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:896:41: error: use of
      undeclared identifier 'C_IN'
                        n = php_dns_search(handle, hostname, C_IN, type_...
                                                             ^
ext/standard/php_dns.h:28:35: note: expanded from macro 'php_dns_search'
        ((int)dns_search(res, dname, class, type, answer, anslen, (struc...
                                     ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:905:4: error: use of
      undeclared identifier 'hp'
                        hp = (HEADER *)&answer;
                        ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:905:10: error: use of
      undeclared identifier 'HEADER'
                        hp = (HEADER *)&answer;
                              ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:905:18: error: expected
      expression
                        hp = (HEADER *)&answer;
                                      ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:906:15: error: use of
      undeclared identifier 'hp'
                        qd = ntohs(hp->qdcount);
                                   ^
/usr/include/sys/_endian.h:126:39: note: expanded from macro 'ntohs'
#define ntohs(x)        __DARWIN_OSSwapInt16(x)
                                             ^
/usr/include/libkern/_OSByteOrder.h:72:40: note: expanded from macro
      '__DARWIN_OSSwapInt16'
    ((__uint16_t)(__builtin_constant_p(x) ? __DARWIN_OSSwapConstInt16(x...
                                       ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:906:15: error: use of
      undeclared identifier 'hp'
/usr/include/sys/_endian.h:126:39: note: expanded from macro 'ntohs'
#define ntohs(x)        __DARWIN_OSSwapInt16(x)
                                             ^
/usr/include/libkern/_OSByteOrder.h:72:71: note: expanded from macro
      '__DARWIN_OSSwapInt16'
    ((__uint16_t)(__builtin_constant_p(x) ? __DARWIN_OSSwapConstInt16(x) : _...
                                                                      ^
/usr/include/libkern/_OSByteOrder.h:44:34: note: expanded from macro
      '__DARWIN_OSSwapConstInt16'
    ((__uint16_t)((((__uint16_t)(x) & 0xff00) >> 8) | \
                                 ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:906:15: error: use of
      undeclared identifier 'hp'
/usr/include/sys/_endian.h:126:39: note: expanded from macro 'ntohs'
#define ntohs(x)        __DARWIN_OSSwapInt16(x)
                                             ^
/usr/include/libkern/_OSByteOrder.h:72:71: note: expanded from macro
      '__DARWIN_OSSwapInt16'
    ((__uint16_t)(__builtin_constant_p(x) ? __DARWIN_OSSwapConstInt16(x) : _...
                                                                      ^
/usr/include/libkern/_OSByteOrder.h:45:32: note: expanded from macro
      '__DARWIN_OSSwapConstInt16'
                (((__uint16_t)(x) & 0x00ff) << 8)))
                               ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:906:15: error: use of
      undeclared identifier 'hp'
/usr/include/sys/_endian.h:126:39: note: expanded from macro 'ntohs'
#define ntohs(x)        __DARWIN_OSSwapInt16(x)
                                             ^
/usr/include/libkern/_OSByteOrder.h:72:89: note: expanded from macro
      '__DARWIN_OSSwapInt16'
  ...? __DARWIN_OSSwapConstInt16(x) : _OSSwapInt16(x)))
                                                   ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:907:15: error: use of
      undeclared identifier 'hp'
                        an = ntohs(hp->ancount);
                                   ^
/usr/include/sys/_endian.h:126:39: note: expanded from macro 'ntohs'
#define ntohs(x)        __DARWIN_OSSwapInt16(x)
                                             ^
/usr/include/libkern/_OSByteOrder.h:72:40: note: expanded from macro
      '__DARWIN_OSSwapInt16'
    ((__uint16_t)(__builtin_constant_p(x) ? __DARWIN_OSSwapConstInt16(x...
                                       ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:907:15: error: use of
      undeclared identifier 'hp'
/usr/include/sys/_endian.h:126:39: note: expanded from macro 'ntohs'
#define ntohs(x)        __DARWIN_OSSwapInt16(x)
                                             ^
/usr/include/libkern/_OSByteOrder.h:72:71: note: expanded from macro
      '__DARWIN_OSSwapInt16'
    ((__uint16_t)(__builtin_constant_p(x) ? __DARWIN_OSSwapConstInt16(x) : _...
                                                                      ^
/usr/include/libkern/_OSByteOrder.h:44:34: note: expanded from macro
      '__DARWIN_OSSwapConstInt16'
    ((__uint16_t)((((__uint16_t)(x) & 0xff00) >> 8) | \
                                 ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:907:15: error: use of
      undeclared identifier 'hp'
/usr/include/sys/_endian.h:126:39: note: expanded from macro 'ntohs'
#define ntohs(x)        __DARWIN_OSSwapInt16(x)
                                             ^
/usr/include/libkern/_OSByteOrder.h:72:71: note: expanded from macro
      '__DARWIN_OSSwapInt16'
    ((__uint16_t)(__builtin_constant_p(x) ? __DARWIN_OSSwapConstInt16(x) : _...
                                                                      ^
/usr/include/libkern/_OSByteOrder.h:45:32: note: expanded from macro
      '__DARWIN_OSSwapConstInt16'
                (((__uint16_t)(x) & 0x00ff) << 8)))
                               ^
/Users/username/Downloads/php-5.6.1/ext/standard/dns.c:907:15: error: use of
      undeclared identifier 'hp'
/usr/include/sys/_endian.h:126:39: note: expanded from macro 'ntohs'
#define ntohs(x)        __DARWIN_OSSwapInt16(x)
                                             ^
/usr/include/libkern/_OSByteOrder.h:72:89: note: expanded from macro
      '__DARWIN_OSSwapInt16'
  ...? __DARWIN_OSSwapConstInt16(x) : _OSSwapInt16(x)))
                                                   ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
4 warnings and 20 errors generated.
make: *** [ext/standard/dns.lo] Error 1

Test script:
---------------
./configure --prefix=/usr --with-libdir=lib --with-apxs2=/usr/sbin/apxs --with-config-file-path=/etc/php5/apache2/ --with-config-file-scan-dir=/etc/php5/conf.d --with-regex=shared --with-openssl --with-kerberos --with-zlib=shared --enable-bcmath=shared --with-bz2=shared --enable-calendar --with-curl=shared --enable-dba --with-enchant=shared --enable-exif=shared --enable-ftp=shared --with-gd=shared --with-gettext=shared --with-gmp=shared --with-mhash=shared --with-imap=shared --with-imap-ssl --enable-intl=shared --with-ldap=shared --enable-mbstring=shared --with-mcrypt=shared --with-mysql=shared --with-mysqli=shared --enable-opcache=shared --with-pdo-mysql=shared --with-pdo-pgsql=shared --with-pgsql=shared --enable-shmop=shared --with-snmp=shared --enable-soap=shared --enable-sockets=shared --with-tidy=shared --enable-wddx=shared --with-xmlrpc=shared --with-xsl=shared --enable-zip=shared --with-libzip=shared --with-pear=shared --build=x86_64

Expected result:
----------------
compile

Actual result:
--------------
errors