Include the '-oss' postfix in OSS compilation jobs

Authored-by: NKris Macoskey <kmacoskey@pivotal.io>

concourse/scripts/compile_gpdb_open_source_centos.bash

@@ -45,7 +45,7 @@ function install_system_deps() {
 function build_gpdb() {
   pushd gpdb_src
     source /opt/gcc_env.sh
-    CC=$(which gcc) CXX=$(which g++) ./configure --enable-mapreduce --with-perl --with-libxml \
+    CC=$(which gcc) CXX=$(which g++) ./configure --enable-mapreduce --with-perl --with-libxml --with-extra-version="-oss" \
         --disable-orca --with-python --disable-gpfdist --with-zstd --prefix=${GREENPLUM_INSTALL_DIR}
     # Use -j4 to speed up the build. (Doesn't seem worth trying to guess a better
     # value based on number of CPUs or anything like that. Going above -j4 wouldn't

concourse/scripts/compile_gpdb_open_source_ubuntu.bash

@@ -37,6 +37,7 @@ function build_gpdb() {
           --with-libraries=${CWD}/depends/build/lib \
           --with-includes=${CWD}/depends/build/include \
           --prefix=${GREENPLUM_INSTALL_DIR} \
+          --with-extra-version="-oss" \
           ${CONFIGURE_FLAGS}
         make -j4 -s
         LD_LIBRARY_PATH=${CWD}/depends/build/lib make install