GnuTests: autoreconf for portability

Author: oech3

.github/workflows/GnuTests.yml

@@ -61,9 +61,6 @@ jobs:
         sudo apt-get update
         ## Check that build-gnu.sh works on the non SELinux system by installing libselinux only on lima
         sudo apt-get install -y gperf gdb python3-pyinotify valgrind libexpect-perl libacl1-dev libattr1-dev libcap-dev attr quilt
-        curl --fail --location --silent --show-error --retry 3 --retry-all-errors -o automake_1.18.1-3_all.deb https://sylvestre.ledru.info/debian/automake-1.18.deb
-        echo "0c6a249892120518ab7bb0711396dc8cd26f15ed4118d0b222ba3cd7368eb248  automake_1.18.1-3_all.deb" | sha256sum --check --strict -
-        sudo dpkg -i --force-depends automake_1.18.1-3_all.deb
     - name: Add various locales
       shell: bash
       run: |

util/build-gnu.sh

@@ -122,6 +122,7 @@ if test -f gnu-built; then
     echo "'rm -f $(pwd)/{gnu-built,src/getlimits}' to force the build"
     echo "Note: the customization of the tests will still happen"
 else
+    autoreconf
     # Disable useless checks
     sed -i 's|check-texinfo: $(syntax_checks)|check-texinfo:|' doc/local.mk
     # Stop manpage generation for cleaner log