Compile and install php7 extension msgpack2.0.1 in ubuntu16.04

The following error is prompted: C language is missing and msgpack is checked. c source code does not know if the processing, hope high hand help datasoftwaresphp-7.1.0beta3extmsgpack-2.0.1msgpack.c: Infunction 'ps _ srlzr_decode_msgpack ': datasoftwaresphp-7.1 .... the following error is prompted: C language is missing and msgpack is checked. c source code does not know if it is processed.

/Data/softwares/php-7.1.0beta3/ext/msgpack-2.0.1/msgpack. c: In function 'ps _ srlzr_decode_msgpack ':
/Data/softwares/php-7.1.0beta3/ext/msgpack-2.0.1/msgpack. c: 161: 29: error: storage size of 'Var _ hash' isn' t known
Msgpack_unserialize_data_t var_hash;

                         ^

/Data/softwares/php-7.1.0beta3/ext/msgpack-2.0.1/msgpack. c: In function 'php _ msgpack_unserialize ':
/Data/softwares/php-7.1.0beta3/ext/msgpack-2.0.1/msgpack. c: 211: 29: error: storage size of 'Var _ hash' isn' t known
Msgpack_unserialize_data_t var_hash;

                         ^

Makefile: 193: recipe for target 'msgpack. Lo' failed
Make:*[Msgpack. lo] Error 1

Reply content:

The following error is prompted: I forgot the c language and checked the source code of msgpack. c. I don't know how to handle it.

/Data/softwares/php-7.1.0beta3/ext/msgpack-2.0.1/msgpack. c: In function 'ps _ srlzr_decode_msgpack ':
/Data/softwares/php-7.1.0beta3/ext/msgpack-2.0.1/msgpack. c: 161: 29: error: storage size of 'Var _ hash' isn' t known
Msgpack_unserialize_data_t var_hash;

                         ^

/Data/softwares/php-7.1.0beta3/ext/msgpack-2.0.1/msgpack. c: In function 'php _ msgpack_unserialize ':
/Data/softwares/php-7.1.0beta3/ext/msgpack-2.0.1/msgpack. c: 211: 29: error: storage size of 'Var _ hash' isn' t known
Msgpack_unserialize_data_t var_hash;

                         ^

Makefile: 193: recipe for target 'msgpack. Lo' failed
Make:*[Msgpack. lo] Error 1