mac php7编译报错 Undefined symbols for architecture x86_64

执行 make 报错：

 

Undefined symbols for architecture x86_64:
  "_libiconv", referenced from:
      _php_iconv_string in iconv.o
      __php_iconv_strlen in iconv.o
      __php_iconv_substr in iconv.o
      __php_iconv_strpos in iconv.o
      __php_iconv_mime_encode in iconv.o
      __php_iconv_appendl in iconv.o
      _php_iconv_stream_filter_append_bucket in iconv.o
      ...
  "_libiconv_close", referenced from:
      _php_iconv_string in iconv.o
      __php_iconv_strlen in iconv.o
      __php_iconv_substr in iconv.o
      __php_iconv_strpos in iconv.o
      __php_iconv_mime_encode in iconv.o
      __php_iconv_mime_decode in iconv.o
      _php_iconv_stream_filter_dtor in iconv.o
      ...
  "_libiconv_open", referenced from:
      _php_iconv_string in iconv.o
      __php_iconv_strlen in iconv.o
      __php_iconv_substr in iconv.o
      __php_iconv_strpos in iconv.o
      __php_iconv_mime_encode in iconv.o
      __php_iconv_mime_decode in iconv.o
      _php_iconv_stream_filter_ctor 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

因为libiconv没找到的原因导致的。解决方案：

修改本目录下Makefile文件，将

 

EXTRA_LIBS =  -lresolv -liconv -liconv -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm

改成：

EXTRA_LIBS =  -lresolv /usr/local/Cellar/libiconv/1.15/lib/libiconv.dylib -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm /usr/local/opt/openssl/lib/libssl.dylib /usr/local/opt/openssl/lib/libcrypto.dylib

将其中的：-liconv 改成 /usr/local/Cellar/libiconv/1.15/lib/libiconv.dylib；/usr/local/Cellar/libiconv/1.15/lib/libiconv.dylib为本地安装的libiconv目录；

在最后增加： /usr/local/opt/openssl/lib/libssl.dylib 与 /usr/local/opt/openssl/lib/libcrypto.dylib