I cannot install PHP on my Mac.

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|  BUILD ERROR|
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Here are the last 10 lines from the log:

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                       ^
/usr/include/math.h:718:12:note: 'finite' has been explicitly marked here
external intfinite(double)_OSX_AVAILABLE_BUT_DEPRECATED(__MAC_10_0,__MAC_10_9,_IPHONE_NA,_IPHONE_NA);
           ^
1 warning generated.
/var/tmp/php-build/source/5.6.8/Zend/zend_string.c:65:28:warning:assigning to 'char*'from' const char*'discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers]
        CG(internated_empty_string) = zend_new_internated_string_int("", size of(""), 0TSRMLS_CC);
                                  ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
PEAR package PHP_Archive not installed: generated phar will require PHP's phar extension be enabled.
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The full Log is available at '/tmp/php-build.5.6.8.20150513233015.log'.
Warn—Aborting build.