tccpe: speed up .def file loading
tccpe: speed up .def file loading

The fgets replacement meant to work with "int fd"
was just too slow.

seyko2/tinycc,gfwilliams/tinycc,andreiw/tinycc,fstudio/tinycc,fstudio/tinycc,andrewchambers/tccmirror,avih/tinycc,mirror/tinycc,andrewchambers/tccmirror,alfonsokim/tinycc,metaeducation/tcc,gfwilliams/tinycc,alfonsokim/tinycc,metaeducation/tcc,gfwilliams/tinycc,leeduhem/tinycc,seyko2/tinycc,code4game/tinycc,seyko2/tinycc,andreiw/tinycc,mingodad/tinycc,gfwilliams/tinycc,alfonsokim/tinycc,run4flat/tinycc,leeduhem/tinycc,rchandramouli/tinycc,leeduhem/tinycc,alfonsokim/tinycc,mirror/tinycc,andrewchambers/tccmirror,leeduhem/tinycc,gfwilliams/tinycc,run4flat/tinycc,mirror/tinycc,avih/tinycc,rchandramouli/tinycc,mingodad/tinycc,mirror/tinycc,rchandramouli/tinycc,fstudio/tinycc,rchandramouli/tinycc,andrewchambers/tccmirror,metaeducation/tcc,avih/tinycc,leeduhem/tinycc,fstudio/tinycc,fstudio/tinycc,seyko2/tinycc,code4game/tinycc,metaeducation/tcc,run4flat/tinycc,rchandramouli/tinycc,avih/tinycc,alfonsokim/tinycc,run4flat/tinycc,code4game/tinycc,andrewchambers/tccmirror,andreiw/tinycc,run4flat/tinycc,mingodad/tinycc,metaeducation/tcc,seyko2/tinycc,mingodad/tinycc