Difficulty installing Sage-10.0 on Mac OS 12.6.8 'gmp.h' file not found

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Thank you so much. Should I drag the sage-10.0 file to the trash, empty it, and then re-expand the tarball to get a fresh start on building it? Or should I just go right to source SAGE_ROOT/.homebrew-build-env and then try the make command again? In other words, do I need to uninstall a bunch of stuff I have already done and get a fresh start, or can I immediately try your suggestion?

You can run make distclean which should restore things to pristine status. (This has pretty much the same effect as deleting everything and unpacking the tarball again.) Then source the file and try make again.

Thanks, I tried those three steps - 1) make distclean 2) source ~/sage/sage-10.0/ .homebrew-build-env 3) make

but unfortunately I got the same error:

In file included from src/gmpy2.c:500: [gmpy2-2.1.2] ./src/gmpy2.h:79:12: fatal error: 'gmp.h' file not found [gmpy2-2.1.2] # include <gmp.h> [gmpy2-2.1.2] ^~~~~~~ [gmpy2-2.1.2] 1 error generated. [gmpy2-2.1.2] error: command '/usr/bin/gcc' failed with exit code 1 [gmpy2-2.1.2] error: subprocess-exited-with-error [gmpy2-2.1.2]
[gmpy2-2.1.2] × python setup.py bdist_wheel did not run successfully. [gmpy2-2.1.2] │ exit code: 1 [gmpy2-2.1.2] ╰─> See above for output.

My only two further ideas are (1) restarting the computer, starting a new terminal session, and then once again trying make distclean; source .homebrew-build-env; ./.configure; make. Or (2) all of that but using ./configure --with-system-gmp=no instead of ./configure.

You could also post the question to the Google group sage-support, along with the file SAGE_ROOT/config.log.