diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7ec210da..aab89753 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -117,6 +117,7 @@ configure_file("${PROJECT_SOURCE_DIR}/cppcheck.suppress.in"
                ${PROJECT_BINARY_DIR}/cppcheck.suppress)
 
 gz_configure_build(QUIT_IF_BUILD_ERRORS
+  HIDE_SYMBOLS_BY_DEFAULT
   COMPONENTS av events geospatial graphics io profiler testing)
 
 #============================================================================
diff --git a/profiler/src/RemoteryProfilerImpl.cc b/profiler/src/RemoteryProfilerImpl.cc
index b233adfe..7f1954a4 100644
--- a/profiler/src/RemoteryProfilerImpl.cc
+++ b/profiler/src/RemoteryProfilerImpl.cc
@@ -16,6 +16,7 @@
  */
 
 #include "gz/common/config.hh"
+#include <gz/common/profiler/Export.hh>
 
 #include "RemoteryProfilerImpl.hh"
 #include "gz/common/Console.hh"
@@ -24,6 +25,7 @@
 using namespace gz;
 using namespace common;
 
+GZ_COMMON_PROFILER_VISIBLE
 std::string rmtErrorToString(rmtError error) {
   switch (error) {
     case RMT_ERROR_NONE:
diff --git a/src/SignalHandler.cc b/src/SignalHandler.cc
index 7ad81d81..07b6d054 100644
--- a/src/SignalHandler.cc
+++ b/src/SignalHandler.cc
@@ -31,7 +31,7 @@ using namespace gz;
 using namespace common;
 
 // A wrapper for the sigaction sa_handler.
-std::map<int, std::function<void(int)>> gOnSignalWrappers;
+GZ_COMMON_VISIBLE std::map<int, std::function<void(int)>> gOnSignalWrappers;
 std::mutex gWrapperMutex;
 
 /////////////////////////////////////////////////
diff --git a/testing/include/gz/common/testing/CMakeTestPaths.hh b/testing/include/gz/common/testing/CMakeTestPaths.hh
index 362ae295..19fef93f 100644
--- a/testing/include/gz/common/testing/CMakeTestPaths.hh
+++ b/testing/include/gz/common/testing/CMakeTestPaths.hh
@@ -28,21 +28,21 @@ namespace gz::common::testing
 ///
 /// It is not intended that users will directly construct this, but rather
 /// utilize the TestPathFactory.
-class CMakeTestPaths: public TestPaths
+class GZ_COMMON_TESTING_VISIBLE CMakeTestPaths: public TestPaths
 {
-  /// \brief Constructor from TestPaths
-  public: using TestPaths::TestPaths;
+  /// \brief Constructor
+  /// \param[in] _projectSourcePath Path to the root of the project source
+  public: explicit CMakeTestPaths(
+      const std::string &_projectSourcePath = kTestingProjectSourceDir);
 
   /// \brief Destructor
-  public: GZ_COMMON_TESTING_VISIBLE ~CMakeTestPaths() override;
+  public: ~CMakeTestPaths() override;
 
   /// Documentation inherited
-  public: bool GZ_COMMON_TESTING_VISIBLE
-          ProjectSourcePath(std::string &_sourceDir) override;
+  public: bool ProjectSourcePath(std::string &_sourceDir) override;
 
   /// Documentation inherited
-  public: bool GZ_COMMON_TESTING_VISIBLE
-          TestTmpPath(std::string &_tmpDir) override;
+  public: bool TestTmpPath(std::string &_tmpDir) override;
 };
 }  // namespace gz::common::testing
 #endif  // GZ_COMMON_TESTING_CMAKETESTPATHS_HH_
diff --git a/testing/include/gz/common/testing/TestPaths.hh b/testing/include/gz/common/testing/TestPaths.hh
index ce887f51..4a15b6ba 100644
--- a/testing/include/gz/common/testing/TestPaths.hh
+++ b/testing/include/gz/common/testing/TestPaths.hh
@@ -26,6 +26,8 @@
 
 #include "gz/common/testing/Export.hh"
 
+#include <gz/utils/SuppressWarning.hh>
+
 #ifndef TESTING_PROJECT_SOURCE_DIR
 #define TESTING_PROJECT_SOURCE_DIR ""
 #endif
@@ -59,32 +61,30 @@ enum class GZ_COMMON_TESTING_VISIBLE BuildType
 ///
 /// It is intended that there is an implementation of this interface for
 /// each relevant buildsystem.
-class TestPaths
+class GZ_COMMON_TESTING_VISIBLE TestPaths
 {
   /// \brief Constructor
   /// \param[in] _projectSourcePath Path to the root of the project source
-  public: GZ_COMMON_TESTING_VISIBLE
-          explicit TestPaths(const std::string &_projectSourcePath =
-              kTestingProjectSourceDir);
+  public: explicit TestPaths(
+      const std::string &_projectSourcePath = kTestingProjectSourceDir);
 
   /// \brief Destructor
-  public: GZ_COMMON_TESTING_VISIBLE
-          virtual ~TestPaths() = 0;
+  public: virtual ~TestPaths();
 
   /// brief Populate the path to the root project source directory
   /// \param[out] _sourceDir path to the root project source directory
   /// \return True if path successfully found and set, false otherwise
-  public: virtual bool GZ_COMMON_TESTING_VISIBLE
-          ProjectSourcePath(std::string &_sourceDir) = 0;
+  public: virtual bool ProjectSourcePath(std::string &_sourceDir) = 0;
 
   /// \brief Populate the path to a temporary directory
   /// \param[out] _tmpDir path to the root temporary directory
   /// \return True if path successfully found and set, false otherwise
-  public: virtual bool GZ_COMMON_TESTING_VISIBLE
-          TestTmpPath(std::string &_tmpDir) = 0;
+  public: virtual bool TestTmpPath(std::string &_tmpDir) = 0;
 
+GZ_UTILS_WARN_IGNORE__DLL_INTERFACE_MISSING
   /// \brief Path to the root of the project source
   protected: std::string projectSourcePath;
+GZ_UTILS_WARN_RESUME__DLL_INTERFACE_MISSING
 };
 
 //////////////////////////////////////////////////
diff --git a/testing/src/CMakeTestPaths.cc b/testing/src/CMakeTestPaths.cc
index f17d26b8..f0b84250 100644
--- a/testing/src/CMakeTestPaths.cc
+++ b/testing/src/CMakeTestPaths.cc
@@ -20,6 +20,12 @@
 namespace gz::common::testing
 {
 
+//////////////////////////////////////////////////
+CMakeTestPaths::CMakeTestPaths(const std::string &_projectSourcePath)
+  : TestPaths(_projectSourcePath)
+{
+}
+
 //////////////////////////////////////////////////
 CMakeTestPaths::~CMakeTestPaths() = default;