Hello, I try to install "sample_fe" following the steps described in Andi Blog : http://blog.lxgcc.net/?p=181 I put the sample_fe in the gcc directory (whith the other fe directory : java, cp, ...) I configure with ./configure --enable-languages=sample_fe when I call make, I get this errors: make ...build/gengtype.o build/gengtype-lex.o build/gengtype-yacc.o \ build/errors.o ../build-i686-pc-linux-gnu/libiberty/libiberty.a build/gengtype /home/charfi/Desktop/gcc-4.1.0/gcc/sample_fe/sfe1.c:24: stray GTY marker make[2]: *** [s-gtype] Erreur 1 make[2]: Leaving directory `/home/charfi/Desktop/gcc-obj/gcc' make[1]: *** [all-gcc] Erreur 2 make[1]: Leaving directory `/home/charfi/Desktop/gcc-obj' make: *** [all] Erreur 2 I think it is reltaed with GTY and gengtype but I do not realy understand how to correct it. thank you for your help Asma