Description:
------------
Fails to build:

 gcc -I. -I/private/tmp/pear/temp/runkit -DPHP_ATOM_INC -I/private/var/tmp/pear-build-root/runkit-0.9/include -I/private/var/tmp/pear-build-root/runkit-0.9/main -I/private/tmp/pear/temp/runkit -I/usr/include/php -I/usr/include/php/main -I/usr/include/php/TSRM -I/usr/include/php/Zend -I/usr/include/php/ext -I/usr/include/php/ext/date/lib -DHAVE_CONFIG_H -g -O2 -c /private/tmp/pear/temp/runkit/runkit_import.c  -fno-common -DPIC -o .libs/runkit_import.o
/private/tmp/pear/temp/runkit/runkit_import.c: In function 'php_runkit_import_functions':
/private/tmp/pear/temp/runkit/runkit_import.c:43: warning: pointer targets in passing argument 3 of 'zend_hash_get_current_key_ex' differ in signedness
/private/tmp/pear/temp/runkit/runkit_import.c:43: warning: pointer targets in passing argument 4 of 'zend_hash_get_current_key_ex' differ in signedness
/private/tmp/pear/temp/runkit/runkit_import.c: In function 'php_runkit_import_class_consts':
/private/tmp/pear/temp/runkit/runkit_import.c:185: warning: pointer targets in passing argument 3 of 'zend_hash_get_current_key_ex' differ in signedness
/private/tmp/pear/temp/runkit/runkit_import.c:185: warning: pointer targets in passing argument 4 of 'zend_hash_get_current_key_ex' differ in signedness
/private/tmp/pear/temp/runkit/runkit_import.c: In function 'php_runkit_import_class_props':
/private/tmp/pear/temp/runkit/runkit_import.c:226: warning: pointer targets in passing argument 3 of 'zend_hash_get_current_key_ex' differ in signedness
/private/tmp/pear/temp/runkit/runkit_import.c:226: warning: pointer targets in passing argument 4 of 'zend_hash_get_current_key_ex' differ in signedness
/private/tmp/pear/temp/runkit/runkit_import.c:230: warning: passing argument 2 of 'zend_unmangle_property_name' makes integer from pointer without a cast
/private/tmp/pear/temp/runkit/runkit_import.c:230: error: too few arguments to function 'zend_unmangle_property_name'
/private/tmp/pear/temp/runkit/runkit_import.c: In function 'php_runkit_import_classes':
/private/tmp/pear/temp/runkit/runkit_import.c:288: warning: pointer targets in passing argument 3 of 'zend_hash_get_current_key_ex' differ in signedness
/private/tmp/pear/temp/runkit/runkit_import.c:288: warning: pointer targets in passing argument 4 of 'zend_hash_get_current_key_ex' differ in signedness
make: *** [runkit_import.lo] Error 1
ERROR: `make' failed

Reproduce code:
---------------
$ sudo pecl install runkit-beta

Expected result:
----------------
It should compile.

Actual result:
--------------
It doesn't.