diff --git a/ci/configure.sh b/ci/configure.sh
index 91ab30895c..126368111d 100755
--- a/ci/configure.sh
+++ b/ci/configure.sh
@@ -10,4 +10,11 @@ if [ -n "$TERMUX_VERSION" ]; then
     OPTS="$OPTS --without-pam"
 fi
 
+if [ -d /tmp/liblmdb ]; then
+  OPTS="$OPTS --with-lmdb=/tmp/liblmdb"
+fi
+if [ -d /tmp/librsync ]; then
+  OPTS="$OPTS --with-librsync=/tmp/librsync"
+fi
+
 ./autogen.sh $OPTS
diff --git a/ci/dependencies.sh b/ci/dependencies.sh
index 844118dd1c..bff510f09d 100755
--- a/ci/dependencies.sh
+++ b/ci/dependencies.sh
@@ -2,6 +2,13 @@
 # dependencies.sh is called by install.sh to install libraries and packages needed to build and install CFEngine from source.
 set -ex
 
+if [ "$1" = "--remove" ]; then
+  remove=yes
+else
+  remove=no
+fi
+
+
 GAINROOT=""
 if [ "$(id -u)" != "0" ]; then
     GAINROOT="sudo"
@@ -23,7 +30,7 @@ build_lmdb() {
         git clone --recursive --depth 1 https://github.com/LMDB/lmdb
         cd lmdb/libraries/liblmdb
         make
-        $GAINROOT make install prefix=/usr
+        $GAINROOT make install prefix=/tmp/liblmdb
     )
 }
 
@@ -34,7 +41,7 @@ build_librsync() {
         cd "$tmpdir"
         git clone --recursive --depth 1 https://github.com/librsync/librsync
         cd librsync
-        cmake -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Release .
+        cmake -DCMAKE_INSTALL_PREFIX=/tmp/librsync -DCMAKE_BUILD_TYPE=Release .
         make
         $GAINROOT make install
     )