How could GCC C++ work with newlib ?

[srlin]

could anyone tell me how compiling GCC source code with C and C++ work
and I want use newlib??
execpt use --with-newlib when configure GCC, anything could I do ??

for example:
in newlib(stdio.h), FILE had defined __sFILE

typedef struct __sFILE FILE;

but in GCC 2.95.3 source code, FILE had defined _IO_FILE

typedef _IO_FILE FILE;

please tell me, thanks.