------- Comment #2 from tbm at cyrius dot com 2009-06-16 19:40 ------- In file included from /usr/include/stdio.h:903, from t.cc:4: /usr/include/bits/stdio.h: In function 'int zlib_stream::vprintf(const char*, __va_list_tag*)': /usr/include/bits/stdio.h:39: error: cannot convert 'zlib_stream::_IO_FILE*' to 'FILE*' for argument '1' to 'int zlib_stream::vfprintf(FILE*, const char*, __va_list_tag*)' /usr/include/bits/stdio.h: In function 'int zlib_stream::fgetc_unlocked(FILE*)': /usr/include/bits/stdio.h:56: error: invalid use of incomplete type 'struct _IO_FILE' /usr/include/stdio.h:45: error: forward declaration of 'struct _IO_FILE' /usr/include/bits/stdio.h:56: error: invalid use of incomplete type 'struct _IO_FILE' /usr/include/stdio.h:45: error: forward declaration of 'struct _IO_FILE' /usr/include/bits/stdio.h:56: error: cannot convert 'FILE*' to 'zlib_stream::_IO_FILE*' for argument '1' to 'int zlib_stream::__uflow(zlib_stream::_IO_FILE*)' /usr/include/bits/stdio.h:56: error: invalid use of incomplete type 'struct _IO_FILE' /usr/include/stdio.h:45: error: forward declaration of 'struct _IO_FILE' ...
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40465