CDRIVER-3573 do not hardcode version

Author: kevinAlbs

.evergreen/config.yml

@@ -23,8 +23,13 @@ functions:
       script: |-
         set -o errexit
         set -o xtrace
-        if [ "${is_patch}" = "true" ]; then
-           # TODO: CDRIVER-3573 do not hardcode the version for patch builds.
+        # TODO: CDRIVER-3573 do not hardcode the version.
+        if [ "${project}" != "mongoc-c-driver" ]; then
+           # This is an older branch, like r1.17
+           VERSION_CURRENT="1.17.0-pre"
+           echo $VERSION_CURRENT > "VERSION_CURRENT"
+           VERSION=$VERSION_CURRENT-${version_id}
+        elif [ "${is_patch}" = "true" ]; then
            VERSION_CURRENT="1.17.0-pre"
            echo $VERSION_CURRENT > "VERSION_CURRENT"
            VERSION=$VERSION_CURRENT-patch-${version_id}

build/evergreen_config_lib/functions.py

@@ -27,8 +27,13 @@
                 ('directory', 'mongoc'),
             ]))]),
         shell_mongoc(r'''
-        if [ "${is_patch}" = "true" ]; then
-           # TODO: CDRIVER-3573 do not hardcode the version for patch builds.
+        # TODO: CDRIVER-3573 do not hardcode the version.
+        if [ "${project}" != "mongoc-c-driver" ]; then
+           # This is an older branch, like r1.17
+           VERSION_CURRENT="1.17.0-pre"
+           echo $VERSION_CURRENT > "VERSION_CURRENT"
+           VERSION=$VERSION_CURRENT-${version_id}
+        elif [ "${is_patch}" = "true" ]; then
            VERSION_CURRENT="1.17.0-pre"
            echo $VERSION_CURRENT > "VERSION_CURRENT"
            VERSION=$VERSION_CURRENT-patch-${version_id}