Add freetype2 to CI

The freetype2 library can now be used to create fv1 fonts. This
library is added to the 'max features' CI builds to pick up any
regressions.

scripts/install_xrdp_build_dependencies_with_apt.sh

@@ -61,6 +61,14 @@ PACKAGES=" \
     check \
     "
 
+# libfreetype-dev package was renamed from libfreetype6-dev in older
+# versions
+case `lsb_release -si`/`lsb_release -sr` in
+    Debian/10) LIBFREETYPE_DEV=libfreetype6-dev ;;
+    Ubuntu/18.*) LIBFREETYPE_DEV=libfreetype6-dev ;;
+    *) LIBFREETYPE_DEV=libfreetype-dev
+esac
+
 case "$ARCH"
 in
     amd64)
@@ -79,6 +87,7 @@ in
             max)
                 PACKAGES="$PACKAGES \
                     $PACKAGES_AMD64_MIN
+                    $LIBFREETYPE_DEV \
                     libfuse-dev \
                     libjpeg-dev \
                     libmp3lame-dev \
@@ -97,6 +106,7 @@ in
         PACKAGES="$PACKAGES \
             g++-multilib \
             gcc-multilib \
+            $LIBFREETYPE_DEV:i386 \
             libgl1-mesa-dev:i386 \
             libglu1-mesa-dev:i386 \
             libjpeg-dev:i386 \