Unable to build a release with a perl compiled with clang

[ioanrogers]

If the perl used to run gen_zmq_constants.pl was build with clang then tcc will fail:

open("/usr/bin/../lib/clang/3.7.0/include/stdint.h", O_RDONLY) = 5
read(5, "/*===---- stdint.h - Standard he"..., 8192) = 8192
close(5)                                = 0
write(2, "In file included from <string>:2"..., 200In file included from <string>:2:
In file included from /home/green.sophos/ioanrogers/git/zeromq4-x/include/zmq.h:87:
/usr/bin/../lib/clang/3.7.0/include/stdint.h:31: error: function pointer expected
) = 200

As in #35, this is more of a TinyCC issue but it should probably at least be documented. Or perhaps have the build abort if it sees perl was built with clang.

Workaround: I'm using plenv so I build another perl with gcc and set it as the default perl for my zmq-ffi clone (plenv local 5.22.1-gcc)

I'm probably in a small niche by using a clang-built perl on Linux but, IIRC, clang is the default on MacOSX.

Taking this and #35 together, is it feasible/worthwhile to use something other than TinyCC?

[calid]

The dependency on TinyCC has been removed which should hopefully resolve these issues