Composer installation, the lack of GD library, compile and install GD error?

The error code is as follows

root@ubuntu:~/lnmp/src/php-5.6.14/ext/gd# make && make install/bin/bash/root/lnmp/src/php-5.6.14/ext/gd/ Libtool--mode=compile cc-i/root/lnmp/src/php-5.6.14/ext/gd/libgd-dhave_libpng-i.-i/root/lnmp/src/php-5.6.14/ext /gd-dphp_atom_inc-i/root/lnmp/src/php-5.6.14/ext/gd/include-i/root/lnmp/src/php-5.6.14/ext/gd/main-i/root/lnmp /src/php-5.6.14/ext/gd-i/usr/local/php/include/php-i/usr/local/php/include/php/main-i/usr/local/php/include/ Php/tsrm-i/usr/local/php/include/php/zend-i/usr/local/php/include/php/ext-i/usr/local/php/include/php/ext/date /lib-dhave_config_h-g-o2-c/root/lnmp/src/php-5.6.14/ext/gd/gd.c-o gd.lo mkdir. Libs cc-i/root/lnmp/src/php-5.6. 14/ext/gd/libgd-dhave_libpng-i.-i/root/lnmp/src/php-5.6.14/ext/gd-dphp_atom_inc-i/root/lnmp/src/php-5.6.14/ext /gd/include-i/root/lnmp/src/php-5.6.14/ext/gd/main-i/root/lnmp/src/php-5.6.14/ext/gd-i/usr/local/php/include/ Php-i/usr/local/php/include/php/main-i/usr/local/php/include/php/tsrm-i/usr/local/php/include/php/zend-i/usr/local/php/include/php/ext-i/usr/local/php/include/php/ext/date/lib-dhave_config_h- G-o2-c/root/lnmp/src/php-5.6.14/ext/gd/gd.c-fpic-dpic-o. Libs/gd.o/root/lnmp/src/php-5.6.14/ext/gd/gd.c:80:24:  Fatal error:ft2build.h:no such file or directory # include
  
   
    ^compilation Terminated.make: * * * [Gd.lo] Error 1
   
  

Reply content:

The error code is as follows

root@ubuntu:~/lnmp/src/php-5.6.14/ext/gd# make && make install/bin/bash/root/lnmp/src/php-5.6.14/ext/gd/ Libtool--mode=compile cc-i/root/lnmp/src/php-5.6.14/ext/gd/libgd-dhave_libpng-i.-i/root/lnmp/src/php-5.6.14/ext /gd-dphp_atom_inc-i/root/lnmp/src/php-5.6.14/ext/gd/include-i/root/lnmp/src/php-5.6.14/ext/gd/main-i/root/lnmp /src/php-5.6.14/ext/gd-i/usr/local/php/include/php-i/usr/local/php/include/php/main-i/usr/local/php/include/ Php/tsrm-i/usr/local/php/include/php/zend-i/usr/local/php/include/php/ext-i/usr/local/php/include/php/ext/date /lib-dhave_config_h-g-o2-c/root/lnmp/src/php-5.6.14/ext/gd/gd.c-o gd.lo mkdir. Libs cc-i/root/lnmp/src/php-5.6. 14/ext/gd/libgd-dhave_libpng-i.-i/root/lnmp/src/php-5.6.14/ext/gd-dphp_atom_inc-i/root/lnmp/src/php-5.6.14/ext /gd/include-i/root/lnmp/src/php-5.6.14/ext/gd/main-i/root/lnmp/src/php-5.6.14/ext/gd-i/usr/local/php/include/ Php-i/usr/local/php/include/php/main-i/usr/local/php/include/php/tsrm-i/usr/local/php/include/php/zend-i/usr/local/php/include/php/ext-i/usr/local/php/include/php/ext/date/lib-dhave_config_h- G-o2-c/root/lnmp/src/php-5.6.14/ext/gd/gd.c-fpic-dpic-o. Libs/gd.o/root/lnmp/src/php-5.6.14/ext/gd/gd.c:80:24:  Fatal error:ft2build.h:no such file or directory # include
  
   
    ^compilation Terminated.make: * * * [Gd.lo] Error 1
   
  

 ft2build.h  No such file or directory  

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