Adjusted symbol visibility for 1.1.1

Makefile

@@ -34,4 +34,4 @@ TEMPLATES += db/turboPmac.db
 DBDS += sinqMotor/src/sinqMotor.dbd
 DBDS += src/turboPmac.dbd
 
-USR_CFLAGS += -Wall -Wextra -Weffc++ -Wunused-result -Werror # -Wpedantic // Does not work because EPICS macros trigger warnings
+USR_CFLAGS += -Wall -Wextra -Weffc++ -Wunused-result -Werror -fvisibility=hidden # -Wpedantic // Does not work because EPICS macros trigger warnings

src/turboPmacAxis.h

@@ -24,6 +24,7 @@ class turboPmacAxis : public sinqAxis {
     /**
      * @brief Destroy the turboPmacAxis
      *
+     * This destructor is necessary in order to use the PIMPL idiom.
      */
     virtual ~turboPmacAxis();
 

src/turboPmacController.cpp

@@ -179,6 +179,8 @@ turboPmacController::turboPmacController(const char *portName,
     }
 }
 
+turboPmacController::~turboPmacController() {}
+
 /*
 Access one of the axes of the controller via the axis adress stored in asynUser.
 If the axis does not exist or is not a Axis, a nullptr is returned and an

src/turboPmacController.h

@@ -36,6 +36,13 @@ class turboPmacController : public sinqController {
                         double idlePollPeriod, double comTimeout,
                         int numExtraParams = 0);
 
+    /**
+     * @brief Destroy the controller. Its implementation is empty, however the
+     * destructor needs to be provided for handling turboPmacControllerImpl.
+     *
+     */
+    virtual ~turboPmacController();
+
     /**
      * @brief Get the axis object
      *