gmp refuses to build c++ headers

John Perry John.Perry at
Tue Aug 4 21:05:04 UTC 2020

I downloaded the file from GMP’s website, unpacked it, changed to the directory, then:

   ./configure CC=clang CXX=clang++ --enable-cxx

Configure seemed to work fine; make failed with the given error message.

That’s it. I’m not sure what more I could tell you. (I thought “make” was obvious, sorry.)

> On Aug 4, 2020, at 4:02 PM, Torbjörn Granlund <tg at> wrote:
> John Perry <John.Perry at> writes:
>  I’m sorry; I know better than that. This is GMP 6.2.0, compiling on MacOS 10.15.
> If you know better, then make a final third attempt.  Spell our what you
> did in a logical, ordered manner.  Just an error message from some
> implicit command is not helpful.
> We're willing to help, but you need to make a very slight effort
> yourself first.
> -- 
> Torbjörn
> Please encrypt, key id 0xC8601622

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