Merge branch 'ci_fix_multistage' into 10.2.beta5+updates

build/pkgs/_bootstrap/distros/arch.txt

@@ -1,4 +1,3 @@
 # Packages needed for ./bootstrap
 autoconf automake libtool
-# Otherwise: Error: could not locate the pkg-config autoconf macros. These are
-pkg-config
+pkgconf

build/pkgs/pkgconf/distros/arch.txt

@@ -0,0 +1 @@
+pkgconf

tox.ini

@@ -223,11 +223,10 @@ setenv =
     ubuntu-focal:     BASE_TAG=focal
     ubuntu-jammy:     BASE_TAG=jammy
     ubuntu-lunar:     BASE_TAG=lunar
-    ubuntu-lunar:                              IGNORE_MISSING_SYSTEM_PACKAGES=yes
     ubuntu-mantic:    BASE_TAG=mantic
-    ubuntu-mantic:                             IGNORE_MISSING_SYSTEM_PACKAGES=yes
     #
     # https://hub.docker.com/_/debian
+    # debian-buster does not have libfreetype-dev (it only has libfreetype6-dev)
     # debian-bullseye does not have libgiac-dev
     # debian-trixie does not have libbrial-dev
     #
@@ -238,6 +237,7 @@ setenv =
     debian-stretch:   BASE_TAG=stretch
     debian-stretch:                            IGNORE_MISSING_SYSTEM_PACKAGES=yes
     debian-buster:    BASE_TAG=buster
+    debian-buster:                             IGNORE_MISSING_SYSTEM_PACKAGES=yes
     debian-bullseye:  BASE_TAG=bullseye
     debian-bullseye:                           IGNORE_MISSING_SYSTEM_PACKAGES=yes
     debian-bookworm:  BASE_TAG=bookworm