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I want to install CLISP to run some lisp programs. I am used to install it via

brew install clisp

But I'm getting this error message:

Error: libsigsegv 2.10 did not build

Is this due to the new System Integrity Protection? The log files are telling me this:

checking whether we are cross compiling... configure: error: in `/private/tmp/libsigsegv20150926-26734-xxczr8/libsigsegv-2.10':
configure: error: cannot run C compiled programs.
If you meant to cross compile, use `--host'.
See `config.log' for more details

And the config.log:

configure:3294: clang -o conftest    conftest.c  >&5
clang: warning: no such sysroot directory: ''
conftest.c:11:10: fatal error: 'stdio.h' file not found
#include <stdio.h>
         ^

How can I run my LISP programs or, better, CLISP on OS X 10.11?

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The problem was an outdated XCode version. I had XCode 6.4 installed, but for El Capitan, Version 7 is needed.

See here.

So, for future readers:

  1. Update XCode to version 7 via App Store (or Apple Developer website)
  2. brew install works again like charm

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