Fixed build error due to GetPCIBusId overloaded function

Change-Id: I626446f2c72c8143f08c95367bc1c528abeaf69d

include/hip/hcc_detail/hip_runtime_api.h

@@ -1614,17 +1614,6 @@ hipError_t hipDeviceComputeCapability(int *major,int *minor,hipDevice_t device);
  */
 hipError_t hipDeviceGetName(char *name,int len,hipDevice_t device);
 
-/**
- * @brief Returns a PCI Bus Id string for the device.
- * @param [out] pciBusId
- * @param [in] len
- * @param [hipDevice_t] device
- *
- * @returns #hipSuccess, #hipErrorInavlidDevice
- */
-hipError_t hipDeviceGetPCIBusId (char *pciBusId,int len,hipDevice_t device);
-
-
 /**
  * @brief Returns a PCI Bus Id string for the device, overloaded to take int device ID.
  * @param [out] pciBusId
@@ -1915,6 +1904,17 @@ hipError_t hipIpcCloseMemHandle(void *devPtr);
 } /* extern "c" */
 #endif
 
+#ifdef __cplusplus
+/**
+ * @brief Returns a PCI Bus Id string for the device.
+ * @param [out] pciBusId
+ * @param [in] len
+ * @param [hipDevice_t] device
+ *
+ * @returns #hipSuccess, #hipErrorInavlidDevice
+ */
+hipError_t hipDeviceGetPCIBusId (char *pciBusId,int len,hipDevice_t device);
+#endif
 
 /**
  *-------------------------------------------------------------------------------------------------

src/hip_device.cpp

@@ -337,6 +337,7 @@ hipError_t hipDeviceGetName(char *name,int len,hipDevice_t device)
     return ihipLogStatus(e);
 }
 
+#ifdef __cplusplus
 hipError_t hipDeviceGetPCIBusId (char *pciBusId,int len,hipDevice_t device)
 {
     HIP_INIT_API(pciBusId, len, device);
@@ -350,6 +351,7 @@ hipError_t hipDeviceGetPCIBusId (char *pciBusId,int len,hipDevice_t device)
     }
     return ihipLogStatus(e);
 }
+#endif
 
 hipError_t hipDeviceGetPCIBusId (char *pciBusId,int len, int device)
 {