Hi I have still problem to make a gcc2 hybrid. I have downloaded a image and installed that (so I have a clean image to run from) I have removed both maps generated.x86gcc4/generated.x86gcc2 and followed this link http://www.haiku-os.org/guides/building/gcc-hybrid. I'm running this line from generated.x86gcc2 with this "HAIKU_INSTALL_DIR=/Haiku_Test jam -q install-haiku" This are my error.. /Data/work/haiku/haiku-trunk/generated.x86gcc4/objects/haiku_host/x86/release/tools/addattr/main.o: In function `main': main.cpp:(.text.startup+0x1b0): undefined reference to `BFile::BFile()' main.cpp:(.text.startup+0x1ca): undefined reference to `BFile::SetTo(char const*, unsigned long)' main.cpp:(.text.startup+0x1e7): undefined reference to `BFile::GetSize(long long*) const' main.cpp:(.text.startup+0x23a): undefined reference to `BFile::~BFile()' main.cpp:(.text.startup+0x295): undefined reference to `BFile::Read(void*, unsigned long)' main.cpp:(.text.startup+0x2b4): undefined reference to `BFile::~BFile()' main.cpp:(.text.startup+0x542): undefined reference to `BFile::~BFile()' main.cpp:(.text.startup+0x54a): undefined reference to `_Unwind_Resume' /Data/work/haiku/haiku-trunk/generated.x86gcc4/objects/haiku_host/x86/release/tools/addattr/main.o:(.data.DW.ref.__gxx_personality_v0[DW.ref.__gxx_personality_v0]+0x0): undefined reference to `__gxx_personality_v0' collect2: ld returned 1 exit status rm -f "/Data/work/haiku/haiku-trunk/generated.x86gcc4/objects/haiku_host/x86/release/tools/addattr/addattr" gcc -Xlinker --no-as-needed -o "/Data/work/haiku/haiku-trunk/generated.x86gcc4/objects/haiku_host/x86/release/tools/addattr/addattr" "/Data/work/haiku/haiku-trunk/generated.x86gcc4/objects/haiku_host/x86/release/tools/addattr/main.o" "/Data/work/haiku/haiku-trunk/generated.x86gcc4/objects/haiku_host/x86/release/tools/addattr/addAttr.o" \ -lbe -lstdc++.r4 \ ...failed Link /Data/work/haiku/haiku-trunk/generated.x86gcc4/objects/haiku_host/x86/release/tools/addattr/addattr ... BUILD FAILURE: ...failed updating 1 target(s)... ...skipped 4 target(s)... ...updated 10 target(s)... -- MVH Fredrik Modèen