diff --git a/tests/scripts/basic-build-test.sh b/tests/scripts/basic-build-test.sh
index ab95e22..a653001 100755
--- a/tests/scripts/basic-build-test.sh
+++ b/tests/scripts/basic-build-test.sh
@@ -14,8 +14,6 @@
 # The tests include:
 #   * Unit tests                - executed using tests/scripts/run-test-suite.pl
 #   * Self-tests                - executed using the test suites above
-#   * System tests              - executed using tests/ssl-opt.sh
-#   * Interoperability tests    - executed using tests/compat.sh
 #
 # The tests focus on functionality and do not consider performance.
 #
@@ -36,30 +34,11 @@
     exit 1
 fi
 
-: ${OPENSSL:="openssl"}
-: ${OPENSSL_LEGACY:="$OPENSSL"}
-: ${GNUTLS_CLI:="gnutls-cli"}
-: ${GNUTLS_SERV:="gnutls-serv"}
-: ${GNUTLS_LEGACY_CLI:="$GNUTLS_CLI"}
-: ${GNUTLS_LEGACY_SERV:="$GNUTLS_SERV"}
-
-# To avoid setting OpenSSL and GnuTLS for each call to compat.sh and ssl-opt.sh
-# we just export the variables they require
-export OPENSSL_CMD="$OPENSSL"
-export GNUTLS_CLI="$GNUTLS_CLI"
-export GNUTLS_SERV="$GNUTLS_SERV"
-
 CONFIG_H='include/mbedtls/config.h'
 CONFIG_BAK="$CONFIG_H.bak"
 
 # Step 0 - print build environment info
-OPENSSL="$OPENSSL"                           \
-    OPENSSL_LEGACY="$OPENSSL_LEGACY"         \
-    GNUTLS_CLI="$GNUTLS_CLI"                 \
-    GNUTLS_SERV="$GNUTLS_SERV"               \
-    GNUTLS_LEGACY_CLI="$GNUTLS_LEGACY_CLI"   \
-    GNUTLS_LEGACY_SERV="$GNUTLS_LEGACY_SERV" \
-    scripts/output_env.sh
+scripts/output_env.sh
 echo
 
 # Step 1 - Make and instrumented build for code coverage
@@ -79,25 +58,6 @@
 perl scripts/run-test-suites.pl -v 2 |tee unit-test-$TEST_OUTPUT
 echo
 
-# Step 2b - System Tests
-sh ssl-opt.sh |tee sys-test-$TEST_OUTPUT
-echo
-
-# Step 2c - Compatibility tests
-sh compat.sh -m 'tls1 tls1_1 tls1_2 dtls1 dtls1_2' | \
-    tee compat-test-$TEST_OUTPUT
-OPENSSL_CMD="$OPENSSL_LEGACY"                               \
-    sh compat.sh -m 'ssl3' |tee -a compat-test-$TEST_OUTPUT
-OPENSSL_CMD="$OPENSSL_LEGACY"                                       \
-    GNUTLS_CLI="$GNUTLS_LEGACY_CLI"                                 \
-    GNUTLS_SERV="$GNUTLS_LEGACY_SERV"                               \
-    sh compat.sh -e '^$' -f 'NULL\|DES\|RC4\|ARCFOUR' |             \
-    tee -a compat-test-$TEST_OUTPUT
-OPENSSL_CMD="$OPENSSL_NEXT"                     \
-    sh compat.sh -e '^$' -f 'ARIA\|CHACHA' |    \
-    tee -a compat-test-$TEST_OUTPUT
-echo
-
 # Step 3 - Process the coverage report
 cd ..
 make lcov |tee tests/cov-$TEST_OUTPUT
@@ -133,49 +93,6 @@
 TOTAL_AVAIL=$(($PASSED_TESTS + $FAILED_TESTS + $SKIPPED_TESTS))
 TOTAL_EXED=$(($PASSED_TESTS + $FAILED_TESTS))
 
-# Step 4b - TLS Options tests
-echo "TLS Options tests - tests/ssl-opt.sh"
-
-PASSED_TESTS=$(tail -n5 sys-test-$TEST_OUTPUT|sed -n -e 's/.* (\([0-9]*\) \/ [0-9]* tests ([0-9]* skipped))$/\1/p')
-SKIPPED_TESTS=$(tail -n5 sys-test-$TEST_OUTPUT|sed -n -e 's/.* ([0-9]* \/ [0-9]* tests (\([0-9]*\) skipped))$/\1/p')
-TOTAL_TESTS=$(tail -n5 sys-test-$TEST_OUTPUT|sed -n -e 's/.* ([0-9]* \/ \([0-9]*\) tests ([0-9]* skipped))$/\1/p')
-FAILED_TESTS=$(($TOTAL_TESTS - $PASSED_TESTS))
-
-echo "Passed             : $PASSED_TESTS"
-echo "Failed             : $FAILED_TESTS"
-echo "Skipped            : $SKIPPED_TESTS"
-echo "Total exec'd tests : $TOTAL_TESTS"
-echo "Total avail tests  : $(($TOTAL_TESTS + $SKIPPED_TESTS))"
-echo
-
-TOTAL_PASS=$(($TOTAL_PASS+$PASSED_TESTS))
-TOTAL_FAIL=$(($TOTAL_FAIL+$FAILED_TESTS))
-TOTAL_SKIP=$(($TOTAL_SKIP+$SKIPPED_TESTS))
-TOTAL_AVAIL=$(($TOTAL_AVAIL + $TOTAL_TESTS + $SKIPPED_TESTS))
-TOTAL_EXED=$(($TOTAL_EXED + $TOTAL_TESTS))
-
-
-# Step 4c - System Compatibility tests
-echo "System/Compatibility tests - tests/compat.sh"
-
-PASSED_TESTS=$(cat compat-test-$TEST_OUTPUT | sed -n -e 's/.* (\([0-9]*\) \/ [0-9]* tests ([0-9]* skipped))$/\1/p' | awk 'BEGIN{ s = 0 } { s += $1 } END{ print s }')
-SKIPPED_TESTS=$(cat compat-test-$TEST_OUTPUT | sed -n -e 's/.* ([0-9]* \/ [0-9]* tests (\([0-9]*\) skipped))$/\1/p' | awk 'BEGIN{ s = 0 } { s += $1 } END{ print s }')
-EXED_TESTS=$(cat compat-test-$TEST_OUTPUT | sed -n -e 's/.* ([0-9]* \/ \([0-9]*\) tests ([0-9]* skipped))$/\1/p' | awk 'BEGIN{ s = 0 } { s += $1 } END{ print s }')
-FAILED_TESTS=$(($EXED_TESTS - $PASSED_TESTS))
-
-echo "Passed             : $PASSED_TESTS"
-echo "Failed             : $FAILED_TESTS"
-echo "Skipped            : $SKIPPED_TESTS"
-echo "Total exec'd tests : $EXED_TESTS"
-echo "Total avail tests  : $(($EXED_TESTS + $SKIPPED_TESTS))"
-echo
-
-TOTAL_PASS=$(($TOTAL_PASS+$PASSED_TESTS))
-TOTAL_FAIL=$(($TOTAL_FAIL+$FAILED_TESTS))
-TOTAL_SKIP=$(($TOTAL_SKIP+$SKIPPED_TESTS))
-TOTAL_AVAIL=$(($TOTAL_AVAIL + $EXED_TESTS + $SKIPPED_TESTS))
-TOTAL_EXED=$(($TOTAL_EXED + $EXED_TESTS))
-
 
 # Step 4d - Grand totals
 echo "-------------------------------------------------------------------------"
@@ -209,8 +126,6 @@
 
 
 rm unit-test-$TEST_OUTPUT
-rm sys-test-$TEST_OUTPUT
-rm compat-test-$TEST_OUTPUT
 rm cov-$TEST_OUTPUT
 
 cd ..