Can't Build From Sage Source on Ubuntu

[Derick Swodnick]

Hello! I am trying to build from Sage source code in Ubuntu, but unfortunately I get this error.

[......................................................................]

rm -f config.log

mkdir -p logs/pkgs

ln -s logs/pkgs/config.log config.log

****************************************************************************

error: Sage source tree is unconfigured. Please run "./configure" first.

note:  Type "./configure --help" to see the available configuration options.

****************************************************************************

Makefile:46: recipe for target 'build/make/Makefile' failed

make[1]: *** [build/make/Makefile] Error 1

make[1]: Leaving directory '/root/sage'

Makefile:31: recipe for target 'base-toolchain' failed

make: *** [base-toolchain] Error 2

My build steps:

cd root

git clone -c core.symlinks=true --branch master https://github.com/sagemath/sage.git

cd sage

make

Help me figure out what exactly am I doing wrong?

[Dima Pasechnik]

See above:
Please run "./configure" first.

By the way, you should not build Sagemath (or any other software, in
fact) as root.

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