andrea@andrea-1215P:~/Documents/Nemo$ sb2 gcc hello.c -o hello
hello.c:1:7: error: expected '=', ',', ';', 'asm' or '__attribute__' before '~' token
In file included from //usr/include/stdio.h:75:0,
                 from hello.c:3:
//usr/include/libio.h:332:3: error: unknown type name 'size_t'
//usr/include/libio.h:336:67: error: 'size_t' undeclared here (not in a function)
//usr/include/libio.h:364:62: error: expected declaration specifiers or '...' before 'size_t'
//usr/include/libio.h:373:6: error: expected declaration specifiers or '...' before 'size_t'
//usr/include/libio.h:495:19: error: expected '=', ',', ';', 'asm' or '__attribute__' before '_IO_sgetn'
In file included from hello.c:3:0:
//usr/include/stdio.h:318:35: error: expected declaration specifiers or '...' before 'size_t'
//usr/include/stdio.h:324:47: error: expected declaration specifiers or '...' before 'size_t'
//usr/include/stdio.h:336:20: error: expected declaration specifiers or '...' before 'size_t'
//usr/include/stdio.h:343:10: error: expected declaration specifiers or '...' before 'size_t'
//usr/include/stdio.h:385:44: error: expected declaration specifiers or '...' before 'size_t'
//usr/include/stdio.h:389:45: error: expected declaration specifiers or '...' before 'size_t'
//usr/include/stdio.h:661:11: error: expected declaration specifiers or '...' before 'size_t'
//usr/include/stdio.h:664:9: error: expected declaration specifiers or '...' before 'size_t'
//usr/include/stdio.h:674:8: error: expected declaration specifiers or '...' before 'size_t'
//usr/include/stdio.h:704:15: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'fread'
//usr/include/stdio.h:710:15: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'fwrite'
//usr/include/stdio.h:732:15: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'fread_unlocked'
//usr/include/stdio.h:734:15: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'fwrite_unlocked'