mac 上安裝php環境，出現如下錯誤： "_libiconv_open", referenced from: _zif_iconv_substr in iconv.o _zif_iconv_mime_encode in iconv.o _php_iconv_string in iconv.o __php_iconv_strlen in iconv.o __php_iconv_strpos in iconv.o __php_iconv_mime_decode in iconv.o _php_iconv_stream_filter_factory_create in iconv.o ... ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation) make: *** [sapi/cli/php] Error 1 peter:php-5.6.23 peter$ sudo make -v Password: GNU Make 3.81 Copyright (C) 2006 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. This program built for i386-apple-darwin11.3.0
MakeFile 裏面找到類似下面這一行：
EXTRA_LIBS = -lresolv -lmcrypt -lltdl -liconv-lm -lxml2 -lcurl -lssl -lcrypto
刪除所有的 -lssl 和 -lcrypto 然後添加libiconv.dylib的路徑（如果你安裝了 brew，那麼則是 /usr/local/opt/libiconv/lib/libiconv.dylib），重新運行 make 命令，done。
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