installing easy tag

[Rishabh Makhija <rishabh makhija07 gmail com>]

while performing "make" command i was getting the following error : 

src/tags/flac_private.c:28:20: error: unknown type name ‘FLAC__IOHandle’

                    FLAC__IOHandle handle)

                    ^

src/tags/flac_private.c:57:21: error: unknown type name ‘FLAC__IOHandle’

                     FLAC__IOHandle handle)

                     ^

src/tags/flac_private.c:78:20: error: unknown type name ‘FLAC__IOHandle’

 et_flac_seek_func (FLAC__IOHandle handle,

                    ^

src/tags/flac_private.c:79:20: error: unknown type name ‘FLAC__int64’

                    FLAC__int64 offset,

                    ^

src/tags/flac_private.c:124:1: error: unknown type name ‘FLAC__int64’

 FLAC__int64

 ^

src/tags/flac_private.c:125:20: error: unknown type name ‘FLAC__IOHandle’

 et_flac_tell_func (FLAC__IOHandle handle)

                    ^

src/tags/flac_private.c:143:19: error: unknown type name ‘FLAC__IOHandle’

 et_flac_eof_func (FLAC__IOHandle handle)

                   ^

src/tags/flac_private.c:154:26: error: unknown type name ‘FLAC__IOHandle’

 et_flac_read_close_func (FLAC__IOHandle handle)

                          ^

src/tags/flac_private.c:168:27: error: unknown type name ‘FLAC__IOHandle’

 et_flac_write_close_func (FLAC__IOHandle handle)

                           ^

make[2]: *** [src/tags/easytag-flac_private.o] Error 1

make[2]: Leaving directory `/home/rishabh/PROJECTS/easytag-2.3.4'

make[1]: *** [all-recursive] Error 1

make[1]: Leaving directory `/home/rishabh/PROJECTS/easytag-2.3.4'

make: *** [all] Error 2

how can i solve this issue?