This seems to have been introduced with the recent changes to our legacy compiler. One of libraries used by IM Kit, libjabber, makes use of, for example, the streambuf.h file. When including it, I got erros like this when compiling under Haiku with the new GCC: C++ libs/libjabber/JabberSocketPlug.o In file included from /boot/develop/headers/cpp/iostream.h:31, from /boot/develop/headers/cpp/stl_algobase.h:53, from /boot/develop/headers/cpp/list:30, from /boot/home/development/imkit/libs/libjabber/ JabberHandler.h:5, from /boot/home/development/imkit/libs/libjabber/ JabberSocketPlug.cpp:15: /boot/develop/headers/cpp/streambuf.h:257: parse error before `inline' /boot/develop/headers/cpp/streambuf.h:294: parse error before `static' /boot/develop/headers/cpp/streambuf.h:427: parse error before `(' /boot/develop/headers/cpp/streambuf.h:453: parse error before `(' /boot/develop/headers/cpp/streambuf.h:454: semicolon missing after declaration of `filebuf' /boot/develop/headers/cpp/streambuf.h:454: extraneous `char' ignored /boot/develop/headers/cpp/streambuf.h: In function `class filebuf * cur _ptr()': /boot/develop/headers/cpp/streambuf.h:454: implicit declaration of function `int is_reading(...)' /boot/develop/headers/cpp/streambuf.h:454: implicit declaration of function `int gptr(...)' /boot/develop/headers/cpp/streambuf.h:454: implicit declaration of function `int pptr(...)' /boot/develop/headers/cpp/streambuf.h:454: return to `filebuf *' from `int' lacks a cast /boot/develop/headers/cpp/streambuf.h: In function `char * file_ptr()': /boot/develop/headers/cpp/streambuf.h:456: implicit declaration of function `int eGptr(...)' /boot/develop/headers/cpp/streambuf.h:456: return to `char *' from `int' lacks a cast /boot/develop/headers/cpp/streambuf.h: At top level: /boot/develop/headers/cpp/streambuf.h:458: virtual outside class declaration /boot/develop/headers/cpp/streambuf.h:459: virtual outside class declaration /boot/develop/headers/cpp/streambuf.h:460: virtual outside class declaration /boot/develop/headers/cpp/streambuf.h:461: virtual outside class declaration /boot/develop/headers/cpp/streambuf.h:462: virtual outside class declaration /boot/develop/headers/cpp/streambuf.h:479: prototype for `ios::ios(streambuf *, ostream *)' does not match any in class `ios' /boot/develop/headers/cpp/streambuf.h:128: candidate is: ios::ios(const ios &) /boot/develop/headers/cpp/streambuf.h:489: parse error before `}' /boot/develop/headers/cpp/iostream.h: In method `ostream::ostream()': At least for the first 4 errors (lines 257, 294, 427 and 453), the problem seems to be the "protected" scope keyword in classes (I didn't check the other errors yet). Considering this does not happen when cross-compiling im kit from Linux, I wonder if the problem is not that the new gcc requires some new headers we did not include? Keep in mind that before the compiler changes the same code would compile under Haiku without problems. -Bruno