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The most usual way to build Sage is to unpack the tarball, optionally set MAKE='make -jN' with N of your choice (usually 2, 4, 8 depending on the number of cpu cores available), and run make.

Running make test, make ptest, make testong or make ptestlong is an extra step to check whether all examples and tests in Sage's documentation give the expected output. Not every one goes to that trouble.

Setting SAGE_CHECK is an even further step whose effect is, for each package shipped by Sage, to run the tests provided by that package (independent of Sage). I would guess that even less people set SAGE_CHECK than run make ptestlong.

Thanks for caring, and please report any bugs you encounter.

The most usual way to build Sage is to unpack the tarball, optionally set MAKE='make -jN' with N of your choice (usually 2, 4, 8 depending on the number of cpu cores available), and run make.

Running make test, make ptest, make testongtestlong or make ptestlong is an extra step to check whether all examples and tests in Sage's documentation give the expected output. Not every one goes to that trouble.

Setting SAGE_CHECK is an even further step whose effect is, for each package shipped by Sage, to run the tests provided by that package (independent of Sage). I would guess that even less people set SAGE_CHECK than run make ptestlong.

Thanks for caring, and please report any bugs you encounter.