Description:
------------
when i try to build PHP 5.4.10 using clang 3.2 , i got failed in the compile 
progress.

Actual result:
--------------
/usr/data/php-5.4.10/sapi/cli/php_cli_server.c:(.text+0x240): multiple 
definition of `strtod'
ext/date/php_date.o:/usr/data/php-5.4.10/ext/date/php_date.c:(.text+0x0): first 
defined here
sapi/cli/php_cli_server.o: In function `strtof':
/usr/data/php-5.4.10/sapi/cli/php_cli_server.c:(.text+0x2d0): multiple 
definition of `strtof'
ext/date/php_date.o:/usr/data/php-5.4.10/ext/date/php_date.c:(.text+0x90): first 
defined here
sapi/cli/php_cli_server.o: In function `strtol':
/usr/data/php-5.4.10/sapi/cli/php_cli_server.c:(.text+0x270): multiple 
definition of `strtol'
ext/date/php_date.o:/usr/data/php-5.4.10/ext/date/php_date.c:(.text+0x30): first 
defined here
sapi/cli/php_cli_server.o: In function `strtold':
/usr/data/php-5.4.10/sapi/cli/php_cli_server.c:(.text+0x300): multiple 
definition of `strtold'
ext/date/php_date.o:/usr/data/php-5.4.10/ext/date/php_date.c:(.text+0xc0): first 
defined here
sapi/cli/php_cli_server.o: In function `strtoll':
/usr/data/php-5.4.10/sapi/cli/php_cli_server.c:(.text+0x390): multiple 
definition of `strtoll'
ext/date/php_date.o:/usr/data/php-5.4.10/ext/date/php_date.c:(.text+0x150): 
first defined here
sapi/cli/php_cli_server.o: In function `strtoq':
/usr/data/php-5.4.10/sapi/cli/php_cli_server.c:(.text+0x330): multiple 
definition of `strtoq'
ext/date/php_date.o:/usr/data/php-5.4.10/ext/date/php_date.c:(.text+0xf0): first 
defined here
sapi/cli/php_cli_server.o: In function `strtoul':
/usr/data/php-5.4.10/sapi/cli/php_cli_server.c:(.text+0x2a0): multiple 
definition of `strtoul'
ext/date/php_date.o:/usr/data/php-5.4.10/ext/date/php_date.c:(.text+0x60): first 
defined here
sapi/cli/php_cli_server.o: In function `strtoull':
/usr/data/php-5.4.10/sapi/cli/php_cli_server.c:(.text+0x3c0): multiple 
definition of `strtoull'
ext/date/php_date.o:/usr/data/php-5.4.10/ext/date/php_date.c:(.text+0x180): 
first defined here
sapi/cli/php_cli_server.o: In function `strtouq':
/usr/data/php-5.4.10/sapi/cli/php_cli_server.c:(.text+0x360): multiple 
definition of `strtouq'
ext/date/php_date.o:/usr/data/php-5.4.10/ext/date/php_date.c:(.text+0x120): 
first defined here
sapi/cli/php_cli_server.o: In function `tolower':
/usr/data/php-5.4.10/sapi/cli/php_cli_server.c:(.text+0x910): multiple 
definition of `tolower'
ext/date/php_date.o:/usr/data/php-5.4.10/ext/date/php_date.c:(.text+0x810): 
first defined here
sapi/cli/php_cli_server.o: In function `toupper':
/usr/data/php-5.4.10/sapi/cli/php_cli_server.c:(.text+0x940): multiple 
definition of `toupper'
ext/date/php_date.o:/usr/data/php-5.4.10/ext/date/php_date.c:(.text+0x840): 
first defined here
sapi/cli/php_cli_server.o: In function `vprintf':
/usr/data/php-5.4.10/sapi/cli/php_cli_server.c:(.text+0x0): multiple definition 
of `vprintf'
ext/date/php_date.o:/usr/data/php-5.4.10/ext/date/php_date.c:(.text+0x620): 
first defined here
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [sapi/cli/php] Error 1