Doesn't compile anymore – CLANG error

[juanandresgs]

Hey, looks like something has changed in OSX but neither the examples from the book (starting w/ ex32) nor the code in the git repo will compile. Error below:

Undefined symbols for architecture x86_64:
"_List_merge", referenced from:
_List_merge_sort in liblcthw.a(list_algos.o)
(maybe you meant: _List_merge_sort)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [tests/list_algos_tests] Error 1

[juanandresgs]

To add some context, it looks like it's an issue with imports on OSX10.11 w/ XCode 8 (clang-800.0.38). Homebrew community is going apeshit trying to fix this [-no_weak_imports –https://github.com/golang/go/issues/16770]

[juanandresgs]

For anyone else hounded by this problem, the ex32 List_merge function requires a function declaration as detailed here:
https://stackoverflow.com/questions/23851098/c-compile-errors-learn-c-the-hard-way-ex-32