Description:
------------
Building on an IBM Power platform running RHEL 6.1 for power7.

I am trying to build a simple php with the following options:

$ configure --with-apxs2=/etc/apache2/bin/apxs

configure runs fine but the build fails during the make with the following error. 
The last step and the error is displayed below:

/bin/sh /usr/local/sw/php/libtool --silent --preserve-dup-deps --mode=link gcc -
I/usr/include -O3 -mcpu=power7 -mtune=power7 -m32 -fvisibility=hidden  -rpath 
/usr/local/sw/php/libs
........
libtool: link: `ext/standard/user_filters.lo' is not a valid libtool object
make: *** [libphp5.la] Error 1

Test script:
---------------
$ configure --with-apxs2=/etc/apache2/bin/apxs
$ make
$ make install

Fails on make

Expected result:
----------------
Should make correctly.

Actual result:
--------------
/bin/sh /usr/local/sw/php/libtool --silent --preserve-dup-deps --mode=link gcc -
I/usr/include -O3 -mcpu=power7 -mtune=power7 -m32 -fvisibility=hidden  -rpath 
/usr/local/sw/php/libs -avoid-version -module -L/usr/local/lib -m32 -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/pcrelib/pcre_chartables.lo ext/pcre/pcrelib/pcre_ucd.lo 
ext/pcre/pcrelib/pcre_compile.lo ext/pcre/pcrelib/pcre_config.lo 
ext/pcre/pcrelib/pcre_exec.lo ext/pcre/pcrelib/pcre_fullinfo.lo 
ext/pcre/pcrelib/pcre_get.lo ext/pcre/pcrelib/pcre_globals.lo 
ext/pcre/pcrelib/pcre_info.lo ext/pcre/pcrelib/pcre_maketables.lo 
ext/pcre/pcrelib/pcre_newline.lo ext/pcre/pcrelib/pcre_ord2utf8.lo 
ext/pcre/pcrelib/pcre_refcount.lo ext/pcre/pcrelib/pcre_study.lo 
ext/pcre/pcrelib/pcre_tables.lo ext/pcre/pcrelib/pcre_try_flipped.lo 
ext/pcre/pcrelib/pcre_valid_utf8.lo ext/pcre/pcrelib/pcre_version.lo 
ext/pcre/pcrelib/pcre_xclass.lo ext/pcre/php_pcre.lo ext/sqlite3/sqlite3.lo 
ext/sqlite3/libsqlite/sqlite3.lo ext/ctype/ctype.lo ext/dom/php_dom.lo 
ext/dom/attr.lo ext/dom/document.lo ext/dom/domerrorhandler.lo 
ext/dom/domstringlist.lo ext/dom/domexception.lo ext/dom/namelist.lo 
ext/dom/processinginstruction.lo ext/dom/cdatasection.lo 
ext/dom/documentfragment.lo ext/dom/domimplementation.lo ext/dom/element.lo 
ext/dom/node.lo ext/dom/string_extend.lo ext/dom/characterdata.lo 
ext/dom/documenttype.lo ext/dom/domimplementationlist.lo ext/dom/entity.lo 
ext/dom/nodelist.lo ext/dom/text.lo ext/dom/comment.lo 
ext/dom/domconfiguration.lo ext/dom/domimplementationsource.lo 
ext/dom/entityreference.lo ext/dom/notation.lo ext/dom/xpath.lo 
ext/dom/dom_iterators.lo ext/dom/typeinfo.lo ext/dom/domerror.lo 
ext/dom/domlocator.lo ext/dom/namednodemap.lo ext/dom/userdatahandler.lo 
ext/fileinfo/fileinfo.lo ext/fileinfo/libmagic/apprentice.lo 
ext/fileinfo/libmagic/apptype.lo ext/fileinfo/libmagic/ascmagic.lo 
ext/fileinfo/libmagic/cdf.lo ext/fileinfo/libmagic/cdf_time.lo 
ext/fileinfo/libmagic/compress.lo ext/fileinfo/libmagic/encoding.lo 
ext/fileinfo/libmagic/fsmagic.lo ext/fileinfo/libmagic/funcs.lo 
ext/fileinfo/libmagic/is_tar.lo ext/fileinfo/libmagic/magic.lo 
ext/fileinfo/libmagic/print.lo ext/fileinfo/libmagic/readcdf.lo 
ext/fileinfo/libmagic/readelf.lo ext/fileinfo/libmagic/softmagic.lo 
ext/filter/filter.lo ext/filter/sanitizing_filters.lo 
ext/filter/logical_filters.lo ext/filter/callback_filter.lo ext/hash/hash.lo 
ext/hash/hash_md.lo ext/hash/hash_sha.lo ext/hash/hash_ripemd.lo 
ext/hash/hash_haval.lo ext/hash/hash_tiger.lo ext/hash/hash_gost.lo 
ext/hash/hash_snefru.lo ext/hash/hash_whirlpool.lo ext/hash/hash_adler32.lo 
ext/hash/hash_crc32.lo ext/hash/hash_salsa.lo ext/iconv/iconv.lo ext/json/json.lo 
ext/json/utf8_to_utf16.lo ext/json/utf8_decode.lo ext/json/JSON_parser.lo 
ext/pdo/pdo.lo ext/pdo/pdo_dbh.lo ext/pdo/pdo_stmt.lo ext/pdo/pdo_sql_parser.lo 
ext/pdo/pdo_sqlstate.lo ext/pdo_sqlite/pdo_sqlite.lo 
ext/pdo_sqlite/sqlite_driver.lo ext/pdo_sqlite/sqlite_statement.lo 
ext/phar/util.lo ext/phar/tar.lo ext/phar/zip.lo ext/phar/stream.lo 
ext/phar/func_interceptors.lo ext/phar/dirstream.lo ext/phar/phar.lo 
ext/phar/phar_object.lo ext/phar/phar_path_check.lo ext/posix/posix.lo 
ext/reflection/php_reflection.lo ext/session/session.lo ext/session/mod_files.lo 
ext/session/mod_mm.lo ext/session/mod_user.lo ext/simplexml/simplexml.lo 
ext/simplexml/sxe.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/sqlite/sqlite.lo ext/sqlite/sess_sqlite.lo ext/sqlite/pdo_sqlite2.lo 
ext/sqlite/libsqlite/src/opcodes.lo ext/sqlite/libsqlite/src/parse.lo 
ext/sqlite/libsqlite/src/encode.lo ext/sqlite/libsqlite/src/auth.lo 
ext/sqlite/libsqlite/src/btree.lo ext/sqlite/libsqlite/src/build.lo 
ext/sqlite/libsqlite/src/delete.lo ext/sqlite/libsqlite/src/expr.lo 
ext/sqlite/libsqlite/src/func.lo ext/sqlite/libsqlite/src/hash.lo 
ext/sqlite/libsqlite/src/insert.lo ext/sqlite/libsqlite/src/main.lo 
ext/sqlite/libsqlite/src/os.lo ext/sqlite/libsqlite/src/pager.lo 
ext/sqlite/libsqlite/src/printf.lo ext/sqlite/libsqlite/src/random.lo 
ext/sqlite/libsqlite/src/select.lo ext/sqlite/libsqlite/src/table.lo 
ext/sqlite/libsqlite/src/tokenize.lo ext/sqlite/libsqlite/src/update.lo 
ext/sqlite/libsqlite/src/util.lo ext/sqlite/libsqlite/src/vdbe.lo 
ext/sqlite/libsqlite/src/attach.lo ext/sqlite/libsqlite/src/btree_rb.lo 
ext/sqlite/libsqlite/src/pragma.lo ext/sqlite/libsqlite/src/vacuum.lo 
ext/sqlite/libsqlite/src/copy.lo ext/sqlite/libsqlite/src/vdbeaux.lo 
ext/sqlite/libsqlite/src/date.lo ext/sqlite/libsqlite/src/where.lo 
ext/sqlite/libsqlite/src/trigger.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/tokenizer/tokenizer.lo ext/tokenizer/tokenizer_data.lo ext/xml/xml.lo 
ext/xml/compat.lo ext/xmlreader/php_xmlreader.lo ext/xmlwriter/php_xmlwriter.lo 
TSRM/TSRM.lo TSRM/tsrm_strtok_r.lo TSRM/tsrm_virtual_cwd.lo main/main.lo 
main/snprintf.lo main/spprintf.lo main/php_sprintf.lo main/safe_mode.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/php_logos.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_execute_API.lo Zend/zend_highlight.lo 
Zend/zend_llist.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_objects.lo Zend/zend_object_handlers.lo 
Zend/zend_objects_API.lo Zend/zend_default_classes.lo Zend/zend_execute.lo 
sapi/apache2handler/mod_php5.lo sapi/apache2handler/sapi_apache2.lo 
sapi/apache2handler/apache_config.lo sapi/apache2handler/php_functions.lo 
main/internal_functions.lo -lcrypt -lresolv -lcrypt -lrt -lrt -lm -ldl -lnsl -
lxml2 -lz -lm -lxml2 -lz -lm -lxml2 -lz -lm -lcrypt -lxml2 -lz -lm -lxml2 -lz -lm 
-lxml2 -lz -lm -lcrypt  -o libphp5.la
libtool: link: `ext/standard/user_filters.lo' is not a valid libtool object
make: *** [libphp5.la] Error 1