I am on: SunOS hostname 5.9 Generic_118558-14 sun4u sparc SUNW,Sun-Blade-1500. I try to do a bootstrap with the following using gnu make 3.80: mkdir objectdir;cd objectdir CC="cc -xildoff -xarch=v9" ../gcc-4.0.2/configure make bootstrap I get the following errors: stage1/xgcc -Bstage1/ -B/usr/local/sparc-sun-solaris2.9/bin/ -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -Wno-variadic-macros -Wold-style-definition -DHAVE_CONFIG_H -DGENERATOR_FILE -o build/genmodes \ build/genmodes.o build/errors.o ../build-sparc-sun-solaris2.9/libiberty/libiberty.a ld: warning: file ../build-sparc-sun-solaris2.9/libiberty/libiberty.a(hashtab.o): wrong ELF class: ELFCLASS64 Undefined first referenced symbol in file htab_create_alloc build/genmodes.o htab_find build/genmodes.o xcalloc build/genmodes.o htab_hash_string build/genmodes.o htab_find_slot build/genmodes.o xmalloc build/genmodes.o xstrdup build/genmodes.o ld: fatal: Symbol referencing errors. No output written to build/genmodes collect2: ld returned 1 exit status make[2]: *** [build/genmodes] Error 1 make[2]: Leaving directory `/export/home/src/net/gnu/odir/gcc' make[1]: *** [stage2_build] Error 2 make[1]: Leaving directory `/export/home/src/net/gnu/odir/gcc' make: *** [bootstrap] Error 2 I am new to the sun environment, so any help would be appreciated. Thanks!