Mac OS X 10.11.6, curl 命令报错，错误如下：

dyld: lazy symbol binding failed: Symbol not found: _SSL_load_error_strings

Referenced from: /usr/local/lib/libcurl.4.dylib

Expected in: flat namespace

dyld: Symbol not found: _SSL_load_error_strings

Referenced from: /usr/local/lib/libcurl.4.dylib

Expected in: flat namespace

Trace/BPT trap: 5

解决办法：

One solution was provided here

The idea is to make a static build of curl and then paste it to you /usr/bin/ or /usr/local/bin/. Briefly:

1. ~$ xcode-select --install
2. Download the latest version of curl.

3. cd to the directory and run

   ~$ ./configure --disable-shared --with-darwinssl --enable-threaded-resolver

   ~$ make -j `sysctl -n hw.logicalcpu_max`

4. Copy the compiled curl, which is located in ./src/curl to you /usr/bin/

Note: In the make command in 3, the sign "`" is indeed back quote, not single quote.

原文地址：http://unix.stackexchange.com/questions/164637/trying-to-install-curl-with-homebrew-getting-incompatible-library-version-for