Hi, I see this: /home/travel/GCC/BUILDS/obj/./prev-gcc/xgcc -B/home/travel/GCC/BUILDS/obj/./prev-gcc/ -B/usr/local/gnu46/x86_64-unknown-linux-gnu/bin/ -B/usr/local/gnu46/x86_64-unknown-linux-gnu/bin/ -B/usr/local/gnu46/x86_64-unknown-linux-gnu/lib/ -isystem /usr/local/gnu46/x86_64-unknown-linux-gnu/include -isystem /usr/local/gnu46/x86_64-unknown-linux-gnu/sys-include -c -g -O2 -gtoggle -DIN_GCC -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -Wold-style-definition -Wc++-compat -fno-common -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -Ibuild -I../../gcc/gcc -I../../gcc/gcc/build -I../../gcc/gcc/../include -I../../gcc/gcc/../libcpp/include -I/home/travel/GCC/BUILDS/gmp/include -I/home/travel/GCC/BUILDS/mpfr/include -I/home/travel/GCC/BUILDS/mpc/include -I../../gcc/gcc/../libdecnumber -I../../gcc/gcc/../libdecnumber/bid -I../libdecnumber \ -o build/gengtype-parse.o ../../gcc/gcc/gengtype-parse.c ../../gcc/gcc/gengtype-parse.c: In function âtypeâ: ../../gcc/gcc/gengtype-parse.c:754:4: error: format â%sâ expects type âchar *â, but argument 2 has type âconst struct input_file *â [-Werror=format] ../../gcc/gcc/gengtype-parse.c:791:2: error: format â%sâ expects type âchar *â, but argument 2 has type âconst struct input_file *â [-Werror=format] cc1: all warnings being treated as errors make[3]: *** [build/gengtype-parse.o] Error 1 seems to be related to this commit: r166473 | bstarynk | 2010-11-09 08:36:26 +0100(mar, 09 nov 2010) | 36 lines 2010-11-09 Basile Starynkevitch <basile@xxxxxxxxxxxxxxxxx> Jeremie Salvucci <jeremie.salvucci@xxxxxxx> * gengtype.c (get_output_file_name): Declaration moved to gengtype.h. (plugin_files, get_file_basename, get_file_realbasename) (get_file_langdir, error_at_line, gt_files, this_file) (system_h_file, read_input_list, create_field_all) (get_file_srcdir_relative_path, get_file_basename) (get_file_langdir, get_file_gtfilename) (get_output_file_with_visibility, get_output_file_name) (struct flist, put_mangled_filename, walk_type) Salvatore