git: openjdk/jdk21u-dev: master: 8325731: Installation instructions for Debian/Ubuntu don't mention autoconf

[Aleksey Shipilev]

Changeset: f38f6109
Branch: master
Author:    Johannes Bechberger <jbechberger at openjdk.org>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2025-09-17 08:00:56 +0000
URL:       https://git.openjdk.org/jdk21u-dev/commit/f38f61099655f6b45ea5829b6c6e0f05f89c6a05

8325731: Installation instructions for Debian/Ubuntu don't mention autoconf

Backport-of: c3c1cdd1b017654469f214c62457cde248474f2f

! doc/building.html
! doc/building.md