diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index 5bc9a3d..646055d 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -1283,7 +1283,7 @@
 component_test_full_cmake_clang () {
     msg "build: cmake, full config, clang" # ~ 50s
     scripts/config.py full
-    CC=clang cmake -D CMAKE_BUILD_TYPE:String=Check -D ENABLE_TESTING=On .
+    CC=clang cmake -D CMAKE_BUILD_TYPE:String=Release -D ENABLE_TESTING=On .
     make
 
     msg "test: main suites (full config, clang)" # ~ 5s
@@ -1926,7 +1926,8 @@
     scripts/config.py set MBEDTLS_PLATFORM_NO_STD_FUNCTIONS
     scripts/config.py unset MBEDTLS_ENTROPY_NV_SEED
     scripts/config.py unset MBEDTLS_PLATFORM_NV_SEED_ALT
-    make CC=gcc CFLAGS='-Werror -Wall -Wextra -Os'
+    CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Check
+    make
 }
 
 component_build_no_ssl_srv () {
@@ -2094,7 +2095,7 @@
 component_test_no_date_time () {
     msg "build: default config without MBEDTLS_HAVE_TIME_DATE"
     scripts/config.py unset MBEDTLS_HAVE_TIME_DATE
-    CC=gcc cmake
+    CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Check
     make
 
     msg "test: !MBEDTLS_HAVE_TIME_DATE - main suites"
@@ -2633,7 +2634,7 @@
     MBEDTLS_ROOT_DIR="$PWD"
     mkdir "$OUT_OF_SOURCE_DIR"
     cd "$OUT_OF_SOURCE_DIR"
-    cmake "$MBEDTLS_ROOT_DIR"
+    cmake -D CMAKE_BUILD_TYPE:String=Check "$MBEDTLS_ROOT_DIR"
     make
 
     msg "test: cmake 'out-of-source' build"