Description:
------------
cd /usr/ports/lang/php56 && make install clean
fails unexpectedly:
cc: error: no such file or directory: 'ext/standard/file.o'
[...]
Try to set MAKE_JOBS_UNSAFE=yes and rebuild before reporting the failure to
the maintainer.

Tried with "MAKE_JOBS_UNSAFE=yes" but same result. Checked the work dir to confirm that file.o is indeed missing. Compilation with default options (CLI, CGI, FPM).

Test script:
---------------
===>  Building for php56-5.6.14
/bin/sh /usr/ports/lang/php56/work/php-5.6.14/libtool --silent --preserve-dup-deps --mode=link cc -export-dynamic -O -pipe -mfloat-abi=softfp -fno-strict-aliasing  -L/usr/local/lib  -R /usr/local/lib ext/date/php_date.lo ext/date/lib/astro.lo ext/date/lib/dow.lo ext/date/lib/parse_date.lo ext/date/lib/parse_tz.lo ext/date/lib/timelib.lo ext/date/lib/tm2unixtime.lo ext/date/lib/unixtime2tm.lo ext/date/lib/parse_iso_intervals.lo ext/date/lib/interval.lo ext/ereg/ereg.lo ext/ereg/regex/regcomp.lo ext/ereg/regex/regexec.lo ext/ereg/regex/regerror.lo ext/ereg/regex/regfree.lo ext/libxml/libxml.lo ext/pcre/php_pcre.lo ext/reflection/php_reflection.lo ext/spl/php_spl.lo ext/spl/spl_functions.lo ext/spl/spl_engine.lo ext/spl/spl_iterators.lo ext/spl/spl_array.lo ext/spl/spl_directory.lo ext/spl/spl_exceptions.lo ext/spl/spl_observer.lo ext/spl/spl_dllist.lo ext/spl/spl_heap.lo ext/spl/spl_fixedarray.lo ext/standard/crypt_freesec.lo ext/standard/crypt_blowfish.lo ext/standard/crypt_sha512.lo ext/standard/crypt_sha256.lo ext/standard/php_crypt_r.lo ext/standard/array.lo ext/standard/base64.lo ext/standard/basic_functions.lo ext/standard/browscap.lo ext/standard/crc32.lo ext/standard/crypt.lo ext/standard/cyr_convert.lo ext/standard/datetime.lo ext/standard/dir.lo ext/standard/dl.lo ext/standard/dns.lo ext/standard/exec.lo ext/standard/file.lo ext/standard/filestat.lo ext/standard/flock_compat.lo ext/standard/formatted_print.lo ext/standard/fsock.lo ext/standard/head.lo ext/standard/html.lo ext/standard/image.lo ext/standard/info.lo ext/standard/iptc.lo ext/standard/lcg.lo ext/standard/link.lo ext/standard/mail.lo ext/standard/math.lo ext/standard/md5.lo ext/standard/metaphone.lo ext/standard/microtime.lo ext/standard/pack.lo ext/standard/pageinfo.lo ext/standard/quot_print.lo ext/standard/rand.lo ext/standard/soundex.lo ext/standard/string.lo ext/standard/scanf.lo ext/standard/syslog.lo ext/standard/type.lo ext/standard/uniqid.lo ext/standard/url.lo ext/standard/var.lo ext/standard/versioning.lo ext/standard/assert.lo ext/standard/strnatcmp.lo ext/standard/levenshtein.lo ext/standard/incomplete_class.lo ext/standard/url_scanner_ex.lo ext/standard/ftp_fopen_wrapper.lo ext/standard/http_fopen_wrapper.lo ext/standard/php_fopen_wrapper.lo ext/standard/credits.lo ext/standard/css.lo ext/standard/var_unserializer.lo ext/standard/ftok.lo ext/standard/sha1.lo ext/standard/user_filters.lo ext/standard/uuencode.lo ext/standard/filters.lo ext/standard/proc_open.lo ext/standard/streamsfuncs.lo ext/standard/http.lo ext/standard/password.lo ext/mysqlnd/mysqlnd.lo ext/mysqlnd/mysqlnd_alloc.lo ext/mysqlnd/mysqlnd_bt.lo ext/mysqlnd/mysqlnd_charset.lo ext/mysqlnd/mysqlnd_wireprotocol.lo ext/mysqlnd/mysqlnd_loaddata.lo ext/mysqlnd/mysqlnd_reverse_api.lo ext/mysqlnd/mysqlnd_net.lo ext/mysqlnd/mysqlnd_statistics.lo ext/mysqlnd/mysqlnd_driver.lo ext/mysqlnd/mysqlnd_ext_plugin.lo ext/mysqlnd/mysqlnd_auth.lo ext/mysqlnd/mysqlnd_result.lo ext/mysqlnd/mysqlnd_result_meta.lo ext/mysqlnd/mysqlnd_debug.lo ext/mysqlnd/mysqlnd_block_alloc.lo ext/mysqlnd/mysqlnd_plugin.lo ext/mysqlnd/php_mysqlnd.lo ext/mysqlnd/mysqlnd_ps.lo ext/mysqlnd/mysqlnd_ps_codec.lo TSRM/TSRM.lo TSRM/tsrm_strtok_r.lo main/main.lo main/snprintf.lo main/spprintf.lo main/php_sprintf.lo main/fopen_wrappers.lo main/alloca.lo main/php_scandir.lo main/php_ini.lo main/SAPI.lo main/rfc1867.lo main/php_content_types.lo main/strlcpy.lo main/strlcat.lo main/mergesort.lo main/reentrancy.lo main/php_variables.lo main/php_ticks.lo main/network.lo main/php_open_temporary_file.lo main/output.lo main/getopt.lo main/streams/streams.lo main/streams/cast.lo main/streams/memory.lo main/streams/filter.lo main/streams/plain_wrapper.lo main/streams/userspace.lo main/streams/transports.lo main/streams/xp_socket.lo main/streams/mmap.lo main/streams/glob_wrapper.lo Zend/zend_language_parser.lo Zend/zend_language_scanner.lo Zend/zend_ini_parser.lo Zend/zend_ini_scanner.lo Zend/zend_alloc.lo Zend/zend_compile.lo Zend/zend_constants.lo Zend/zend_dynamic_array.lo Zend/zend_dtrace.lo Zend/zend_execute_API.lo Zend/zend_highlight.lo Zend/zend_llist.lo Zend/zend_vm_opcodes.lo Zend/zend_opcode.lo Zend/zend_operators.lo Zend/zend_ptr_stack.lo Zend/zend_stack.lo Zend/zend_variables.lo Zend/zend.lo Zend/zend_API.lo Zend/zend_extensions.lo Zend/zend_hash.lo Zend/zend_list.lo Zend/zend_indent.lo Zend/zend_builtin_functions.lo Zend/zend_sprintf.lo Zend/zend_ini.lo Zend/zend_qsort.lo Zend/zend_multibyte.lo Zend/zend_ts_hash.lo Zend/zend_stream.lo Zend/zend_iterators.lo Zend/zend_interfaces.lo Zend/zend_exceptions.lo Zend/zend_strtod.lo Zend/zend_gc.lo Zend/zend_closures.lo Zend/zend_float.lo Zend/zend_string.lo Zend/zend_signal.lo Zend/zend_generators.lo Zend/zend_virtual_cwd.lo Zend/zend_ast.lo Zend/zend_objects.lo Zend/zend_object_handlers.lo Zend/zend_objects_API.lo Zend/zend_default_classes.lo Zend/zend_execute.lo main/internal_functions_cli.lo sapi/cli/php_cli.lo sapi/cli/php_http_parser.lo sapi/cli/php_cli_server.lo sapi/cli/ps_title.lo sapi/cli/php_cli_process_title.lo -lcrypt -lcrypt -lpcre -lm -lpthread -lxml2 -lz -lm -lcrypt -lcrypt  -o sapi/cli/php
cc: error: no such file or directory: 'ext/standard/file.o'

Actual result:
--------------
Stop.
make: stopped in /usr/ports/lang/php56