There is a compile error with fstorage using GCC in file fstrorage.h in components/libraries/fstorage folder of the SDK14.
The error is due to the fact that the structure nrf_fstorage_api_t is being forward declared then a typedef is used to declare the structure itself.
To correct the issue fstorage.h needs to be changed as follow :
line 115 : typedef struct nrf_fstorage_api const nrf_fstorage_api_t;
line 144 : nrf_fstorage_api_t * p_api;
line 174 : struct nrf_fstorage_api
line 188 : };
