Change BACKEND_IMPEXP to HAMLIB_CPP_IMPEXP in C++ includes to avoid potential collisions

include/hamlib/ampclass.h

@@ -27,7 +27,7 @@
 
 
 //! @cond Doxygen_Suppress
-class BACKEND_IMPEXP Amplifier
+class HAMLIB_CPP_IMPEXP Amplifier
 {
 private:
     AMP *theAmp;  // Global ref. to the amp

include/hamlib/rig_dll.h

@@ -32,7 +32,7 @@
 
 #if defined(_WIN32) && !defined(__CYGWIN__)
 #  undef HAMLIB_IMPEXP
-#  undef BACKEND_IMPEXP
+#  undef HAMLIB_CPP_IMPEXP
 #  undef HAMLIB_API
 #  undef HAMLIB_EXPORT
 #  undef HAMLIB_EXPORT_VAR
@@ -53,15 +53,15 @@
 /* HAMLIB_API may be set to __stdcall for VB, .. */
 #    define HAMLIB_API __cdecl
 #    ifdef IN_HAMLIB
-#      define BACKEND_IMPEXP HAMLIB_DLL_EXPORT
+#      define HAMLIB_CPP_IMPEXP HAMLIB_DLL_EXPORT
 #      define HAMLIB_IMPEXP HAMLIB_DLL_EXPORT
 #    else
-#      define BACKEND_IMPEXP HAMLIB_DLL_IMPORT
+#      define HAMLIB_CPP_IMPEXP HAMLIB_DLL_IMPORT
 #      define HAMLIB_IMPEXP HAMLIB_DLL_IMPORT
 #    endif
 #  else
 /* static build, only export the backend entry points for lt_dlsym */
-#    define BACKEND_IMPEXP HAMLIB_DLL_EXPORT
+#    define HAMLIB_CPP_IMPEXP HAMLIB_DLL_EXPORT
 #  endif
 #endif
 
@@ -70,8 +70,8 @@
 #if !defined(HAMLIB_IMPEXP)
 #  define HAMLIB_IMPEXP
 #endif
-#if !defined(BACKEND_IMPEXP)
-#  define BACKEND_IMPEXP
+#if !defined(HAMLIB_CPP_IMPEXP)
+#  define HAMLIB_CPP_IMPEXP
 #endif
 #if !defined(HAMLIB_API)
 #  define HAMLIB_API
@@ -83,8 +83,8 @@
 #  define HAMLIB_EXPORT_VAR(type) HAMLIB_IMPEXP type
 #endif
 #if !defined(BACKEND_EXPORT)
-#  define BACKEND_EXPORT(type) BACKEND_IMPEXP type HAMLIB_API
+#  define BACKEND_EXPORT(type) HAMLIB_CPP_IMPEXP type HAMLIB_API
 #endif
 #if !defined(BACKEND_EXPORT_VAR)
-#  define BACKEND_EXPORT_VAR(type) BACKEND_IMPEXP type
+#  define BACKEND_EXPORT_VAR(type) HAMLIB_CPP_IMPEXP type
 #endif

include/hamlib/rigclass.h

@@ -27,7 +27,7 @@
 
 
 //! @cond Doxygen_Suppress
-class BACKEND_IMPEXP Rig
+class HAMLIB_CPP_IMPEXP Rig
 {
 private:
     RIG *theRig;  // Global ref. to the rig
@@ -251,7 +251,7 @@ extern "C" void exit(int);
 
 //! @cond Doxygen_Suppress
 // Forward Declarations
-class BACKEND_IMPEXP RigException
+class HAMLIB_CPP_IMPEXP RigException
 {
 public:
     const char *message;

include/hamlib/rotclass.h

@@ -27,7 +27,7 @@
 
 
 //! @cond Doxygen_Suppress
-class BACKEND_IMPEXP Rotator
+class HAMLIB_CPP_IMPEXP Rotator
 {
 private:
     ROT *theRot;  // Global ref. to the rot