Description:
------------
Compilation of 5.4 source with readline enabled, using Sun Studio 12 compiler, fails with this error:

"/var/tmp/php-5.4.3/ext/readline/readline.c", line 201: void function cannot return value
cc: acomp failed for /var/tmp/php-5.4.3/ext/readline/readline.c

On investigation it seems the info function:

PHP_MINFO_FUNCTION(readline)

Attempts to return a PHP_MINFO value, however comparing the ZEND API function and other extension source it seems it should be creating an info table instead.

Test script:
---------------
Replacing:

  return PHP_MINFO(cli_readline)(ZEND_MODULE_INFO_FUNC_ARGS_PASSTHRU);

With:

        php_info_print_table_start();
        php_info_print_table_row(2, "Readline library Version", rl_library_version );
        php_info_print_table_end();

Compiles fine

Expected result:
----------------
Successful compilation

Actual result:
--------------
"/var/tmp/php-5.4.3/ext/readline/readline.c", line 201: void function cannot return value
cc: acomp failed for /var/tmp/php-5.4.3/ext/readline/readline.c