diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 00f1430c7a..b38d7e862f 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -58,7 +58,6 @@ jobs:
             --with-python=3
             --with-systemd-journal=no
             --disable-smtp
-            --disable-grpc
             --disable-java
             --disable-java-modules
             --disable-mqtt
diff --git a/CMakeLists.txt b/CMakeLists.txt
index deb298b208..4e0ca72395 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -377,10 +377,6 @@ endif()
 
 include(add_tests)
 
-# The inclusion of CTest triggers enable_testing()
-# CMake will generate tests only if the enable_testing() command has been invoked.
-# The CTest module invokes the command automatically when the BUILD_TESTING option is ON.
-
 if (BUILD_TESTING)
   if (NOT CRITERION_FOUND)
     message(FATAL_ERROR "BUILD_TESTING enabled without criterion detected!")
@@ -388,6 +384,10 @@ if (BUILD_TESTING)
     set(CTEST_ENVIRONMENT
       "G_SLICE=always-malloc,debug-blocks"
       "G_DEBUG=fatal-warnings,fatal-criticals,gc-friendly")
+
+    # The inclusion of CTest triggers enable_testing()
+    # CMake will generate tests only if the enable_testing() command has been invoked.
+    # The CTest module invokes the command automatically when the BUILD_TESTING option is ON.
     include(CTest)
 
     # This flag might be a security issue, do not use in production code, unfortunately we still need it for criterion tests and the current mocking soution
diff --git a/configure.ac b/configure.ac
index 0e9d96c523..77c362ec27 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2301,6 +2301,7 @@ AM_CONDITIONAL([HAVE_FMEMOPEN], [test x$ac_cv_func_fmemopen = xyes])
 AM_CONDITIONAL([HAVE_JAVAH], [test -n "$JAVAH_BIN"])
 AM_CONDITIONAL(ENABLE_IPV6, [test $enable_ipv6 = yes])
 
+AM_CONDITIONAL(OS_TYPE_MACOS, [test $ostype = "Darwin"])
 
 AC_SUBST(PYTHON_VENV)
 AC_SUBST(PYTHON_VENV_DIR)
diff --git a/contrib/Brewfile b/contrib/Brewfile
index 4f4dd38ace..a9797418d2 100644
--- a/contrib/Brewfile
+++ b/contrib/Brewfile
@@ -26,4 +26,6 @@ brew "python@3", link: true, force: true
 brew "rabbitmq-c"
 brew "riemann-client"
 
+brew "grpc"
+
 brew "criterion"
diff --git a/libtest/CMakeLists.txt b/libtest/CMakeLists.txt
index 17ca1479ba..17872650f8 100644
--- a/libtest/CMakeLists.txt
+++ b/libtest/CMakeLists.txt
@@ -1,3 +1,7 @@
+if (NOT BUILD_TESTING)
+    return ()
+endif ()
+
 set(LIBTEST_HEADERS
     config_parse_lib.h
     fake-time.h
diff --git a/modules/grpc/otel/tests/Makefile.am b/modules/grpc/otel/tests/Makefile.am
index 706734d99b..281d3413df 100644
--- a/modules/grpc/otel/tests/Makefile.am
+++ b/modules/grpc/otel/tests/Makefile.am
@@ -1,5 +1,6 @@
 if ENABLE_GRPC
 
+if ! OS_TYPE_MACOS
 modules_grpc_otel_tests_TESTS = \
   modules/grpc/otel/tests/test_otel_protobuf_parser \
   modules/grpc/otel/tests/test_otel_protobuf_formatter \
@@ -7,6 +8,7 @@ modules_grpc_otel_tests_TESTS = \
   modules/grpc/otel/tests/test_otel_filterx
 
 check_PROGRAMS += ${modules_grpc_otel_tests_TESTS}
+endif
 
 modules_grpc_otel_tests_test_otel_protobuf_parser_SOURCES = \
   modules/grpc/otel/tests/test-otel-protobuf-parser.cpp
diff --git a/modules/kafka/CMakeLists.txt b/modules/kafka/CMakeLists.txt
index 13997f7b54..adb8cfc093 100644
--- a/modules/kafka/CMakeLists.txt
+++ b/modules/kafka/CMakeLists.txt
@@ -1,23 +1,21 @@
-find_package(rdkafka 1.1.0)
+if (NOT DEFINED ENABLE_KAFKA OR ENABLE_KAFKA)
+  find_package(rdkafka 1.1.0)
+endif ()
 
-if (RDKAFKA_FOUND)
-  option(ENABLE_KAFKA "Enable kafka module" ON)
-else()
-  option(ENABLE_KAFKA "Enable kafka module" OFF)
-endif()
+module_switch (ENABLE_KAFKA "Enable kafka module" RDKAFKA_FOUND)
 
-if (NOT ENABLE_KAFKA)
- return()
-endif()
+if (ENABLE_KAFKA AND NOT RDKAFKA_FOUND)
+  message (FATAL_ERROR "Kafka enabled but no librdkafka found")
+endif ()
 
-if (NOT RDKAFKA_FOUND)
-  message(FATAL_ERROR "Kafka enabled but no librdkafka found")
+if (NOT ENABLE_KAFKA)
+  return()
 endif()
 
+check_symbol_exists (rd_kafka_init_transactions "librdkafka/rdkafka.h" SYSLOG_NG_HAVE_RD_KAFKA_INIT_TRANSACTIONS)
 
 set(CMAKE_REQUIRED_INCLUDES ${RDKAFKA_INCLUDE_DIR})
 set(CMAKE_REQUIRED_LIBRARIES ${RDKAFKA_LIBRARY})
-check_symbol_exists(rd_kafka_init_transactions "librdkafka/rdkafka.h" SYSLOG_NG_HAVE_RD_KAFKA_INIT_TRANSACTIONS)
 
 set(KAFKA_SOURCES
   kafka-parser.c
diff --git a/modules/mqtt/CMakeLists.txt b/modules/mqtt/CMakeLists.txt
index faf4c92ec9..d0092a33ef 100644
--- a/modules/mqtt/CMakeLists.txt
+++ b/modules/mqtt/CMakeLists.txt
@@ -3,6 +3,11 @@ if (NOT DEFINED ENABLE_MQTT OR ENABLE_MQTT)
 endif()
 
 module_switch(ENABLE_MQTT "Enable mqtt" eclipse-paho-mqtt-c_FOUND)
+
+if (ENABLE_MQTT AND NOT eclipse-paho-mqtt-c_FOUND)
+  message (FATAL_ERROR "MQTT enabled but no eclipse-paho-mqtt-c library found")
+endif ()
+
 if (NOT ENABLE_MQTT)
   return()
 endif()