CI: Add test against apr/apr-util 1.3.x, the oldest supported versions.

.github/workflows/linux.yml

@@ -95,6 +95,14 @@ jobs:
               APU_CONFIG="--with-crypto --with-ldap"
               CLEAR_CACHE=1
           # -------------------------------------------------------------------------
+          - name: APR 1.4.8, APR-util 1.3.12
+            config: --enable-mods-shared=reallyall
+            env: |
+              TEST_APR_TARBALL=yes
+              APR_VERSION=1.4.8
+              APU_VERSION=1.3.12
+              APU_CONFIG="--with-crypto --with-ldap"
+          # -------------------------------------------------------------------------
           - name: Pool-debug
             config: --enable-mods-shared=reallyall
             env: |

modules/md/md_util.h

@@ -27,7 +27,7 @@
 #else
 /* Define a (poor) backwards-compatibility entry point for
  * apr_cstr_casecmp() from APR 1.6. */
-#define apr_cstr_casecmp apr_strnatcasecmp
+#define apr_cstr_casecmp apr_natcasecmp
 #endif
 
 struct apr_array_header_t;

test/travis_before_linux.sh

@@ -29,17 +29,22 @@ function install_apx() {
     local giturl=https://github.com/apache/${name}.git
     local config=$3
     local buildconf=$4
-
-    case $version in
-    trunk|*.x) ref=refs/heads/${version} ;;
-    *) ref=refs/tags/${version} ;;
-    esac
-
-    # Fetch the object ID (hash) of latest commit
-    local commit=`git ls-remote ${giturl} ${ref} | cut -f1`
-    if test -z "$commit"; then
-        : Could not determine latest commit hash for ${ref} in ${giturl} - check branch is valid?
-        exit 1
+    local commit=tarball
+
+    mkdir -p ${HOME}/build
+
+    if ! test -v TEST_APR_TARBALL; then
+         case $version in
+            trunk|*.x) ref=refs/heads/${version} ;;
+            *) ref=refs/tags/${version} ;;
+         esac
+
+         # Fetch the object ID (hash) of latest commit
+         commit=`git ls-remote ${giturl} ${ref} | cut -f1`
+         if test -z "$commit"; then
+            : Could not determine latest commit hash for ${ref} in ${giturl} - check branch is valid?
+            exit 1
+         fi
     fi
 
     # Blow away the cached install root if the cached install is stale
@@ -50,16 +55,24 @@ function install_apx() {
         return 0
     fi
 
-    git init -q ${build}
-    pushd $build
+    if test -v TEST_APR_TARBALL; then
+         curl https://archive.apache.org/dist/apr/${name}-${version}.tar.gz > apx.tar.gz
+         tar -C ${HOME}/build -xzf apx.tar.gz
+         rm apx.tar.gz
+         pushd ${build}
+    else
+         git init -q ${build}
+         pushd $build
          # Clone and checkout the commit identified above.
          git remote add origin ${giturl}
          git fetch -q --depth=1 origin ${commit}
          git checkout ${commit}
          ./buildconf ${buildconf}
-         ./configure --prefix=${prefix} ${config}
-         make -j2
-         make install
+    fi
+
+    ./configure --prefix=${prefix} ${config}
+    make -j2
+    make install
     popd
 
     echo ${version} ${commit} "${config}" "CC=${CC}" > ${HOME}/root/.key-${name}