Can't get php5 to build on machines that have php4 or have had php4

[MXS]

Hi

I'm getting the same error when I'm compiling under os x. I already  
have php 4.4.1 installed on it ( default ) and I can't get it to  
complete the install.


/bin/sh /Applications/php-5.1.4/libtool --silent --preserve-dup-deps  
--mode=compile gcc  -Iext/standard/ -I/Applications/php-5.1.4/ext/ 
standard/ -DPHP_ATOM_INC -I/Applications/php-5.1.4/include -I/ 
Applications/php-5.1.4/main -I/Applications/php-5.1.4 -I/usr/include/ 
libxml2 -I/Applications/php-5.1.4/ext/date/lib -I/Applications/ 
php-5.1.4/TSRM -I/Applications/php-5.1.4/Zend    -I/usr/include -g - 
O2   -c /Applications/php-5.1.4/ext/standard/dns.c -o ext/standard/ 
dns.lo
/Applications/php-5.1.4/ext/standard/dns.c: In function  
'zif_dns_check_record':
/Applications/php-5.1.4/ext/standard/dns.c:265: error: 'T_MX'  
undeclared (first use in this function)
/Applications/php-5.1.4/ext/standard/dns.c:265: error: (Each  
undeclared identifier is reported only once
/Applications/php-5.1.4/ext/standard/dns.c:265: error: for each  
function it appears in.)
/Applications/php-5.1.4/ext/standard/dns.c:276: error: 'T_A'  
undeclared (first use in this function)
/Applications/php-5.1.4/ext/standard/dns.c:297: error: 'C_IN'  
undeclared (first use in this function)
/Applications/php-5.1.4/ext/standard/dns.c: In function  
'zif_dns_get_mx':
/Applications/php-5.1.4/ext/standard/dns.c:854: error: 'HEADER'  
undeclared (first use in this function)
/Applications/php-5.1.4/ext/standard/dns.c:854: error: 'hp'  
undeclared (first use in this function)
/Applications/php-5.1.4/ext/standard/dns.c:883: error: 'C_IN'  
undeclared (first use in this function)
/Applications/php-5.1.4/ext/standard/dns.c:890: error: parse error  
before ')' token
/Applications/php-5.1.4/ext/standard/dns.c:891: error: 'HFIXEDSZ'  
undeclared (first use in this function)
/Applications/php-5.1.4/ext/standard/dns.c:893: error: 'QFIXEDSZ'  
undeclared (first use in this function)
make: *** [ext/standard/dns.lo] Error 1

By the way, this is my 4th days playing with that. Hard to not think  
DOS!