diff --git a/.github/workflows/greenplum-abi-tests.yml b/.github/workflows/greenplum-abi-tests.yml
index 258332233722..d28782c99aac 100644
--- a/.github/workflows/greenplum-abi-tests.yml
+++ b/.github/workflows/greenplum-abi-tests.yml
@@ -94,7 +94,9 @@ jobs:
         run: |
           pushd gpdb_src
           CC='gcc -m64' \
-          CFLAGS='-Og -g3 -Wno-maybe-uninitialized' LDFLAGS='-Wl,--enable-new-dtags -Wl,--export-dynamic' \
+          CXXFLAGS='-O0' \
+          CFLAGS='-gdwarf-4 -Og -g3 -Wno-maybe-uninitialized' \
+          LDFLAGS='-Wl,--enable-new-dtags -Wl,--export-dynamic' \
           ./configure --with-gssapi --enable-orafce --enable-ic-proxy --enable-orca --with-libxml \
                       --with-uuid=e2fs --with-pgport=5432 --enable-tap-tests --enable-debug-extensions \
                       --with-perl --with-python --with-openssl --with-pam --with-ldap --disable-rpath \
diff --git a/README.md b/README.md
index 52ee4ba0958b..d24270dedf69 100644
--- a/README.md
+++ b/README.md
@@ -44,6 +44,7 @@ Follow [appropriate linux steps](README.Linux.md) for getting your system ready
 
 ### Build the database
 
+
 ```
 # Initialize and update submodules in the repository
 git submodule update --init