Hi, I have encouraged problems build cross-compiler for OS development. What could cause these errors? Should I report bug? Details below. Native compiler configure arguments: --prefix=/home/borys/devel/gcc/ --disable-nls --enable-languages=c,c++ --program-prefix=ntv Native compiler version: 9.1.0 Before building cross-compiler i executed following command: ./contrib/download_prerequisites Could it be the cause. As far as I remember I recieved some warning regarding isl. Should I provide more information? File riscv64-elf/libgcc/config.log Reading specs from /home/borys/src/rvgcc/./gcc/specs COLLECT_GCC=/home/borys/src/rvgcc/./gcc/xgccCOLLECT_LTO_WRAPPER=/home/borys/src/rvgcc/./gcc/lto-wrapper Target: riscv64-elf Configured with: ../gcc-9.1.0/configure --target=riscv64-elf --prefix=/home/borys/devel/riscv64 --disable-nls --enable-languages=c --without-headers CC=ntvgcc CXX=ntvg++ Thread model: single gcc version 9.1.0 (GCC) /home/borys/src/rvgcc/./gcc/xgcc -B/home/borys/src/rvgcc/./gcc/ -B/home/borys/devel/riscv64/riscv64-elf/bin/ -B/home/borys/devel/riscv64/riscv64-elf/lib/ -isystem /home/borys/devel/riscv64/riscv64-elf/include -isystem /home/borys/devel/riscv64/riscv64-elf/sys-include -V >&5xgcc: error: unrecognized command line option '-V' xgcc: fatal error: no input files compilation terminated. /home/borys/src/rvgcc/./gcc/xgcc -B/home/borys/src/rvgcc/./gcc/ -B/home/borys/devel/riscv64/riscv64-elf/bin/ -B/home/borys/devel/riscv64/riscv64-elf/lib/ -isystem /home/borys/devel/riscv64/riscv64-elf/include -isystem /home/borys/devel/riscv64/riscv64-elf/sys-include -qversion >&5 xgcc: error: unrecognized command line option '-qversion'; did you mean '--version'? xgcc: fatal error: no input files compilation terminated. /home/borys/src/rvgcc/./gcc/xgcc -B/home/borys/src/rvgcc/./gcc/ -B/home/borys/devel/riscv64/riscv64-elf/bin/ -B/home/borys/devel/riscv64/riscv64-elf/lib/ -isystem /home/borys/devel/riscv64/riscv64-elf/include -isystem /home/borys/devel/riscv64/riscv64-elf/sys-include -o conftest -g -O2 conftest.c >&5 /home/borys/src/rvgcc/./gcc/as: 106: exec: -march=rv64gc: not found checking for suffix of object files configure:3767: /home/borys/src/rvgcc/./gcc/xgcc -B/home/borys/src/rvgcc/./gcc/ -B/home/borys/devel/riscv64/riscv64-elf/bin/ -B/home/borys/devel/riscv64/riscv64-elf/lib/ -isystem /home/borys/devel/riscv64/riscv64-elf/include -isystem /home/borys/devel/riscv64/riscv64-elf/sys-include -c -g -O2 conftest.c >&5 /home/borys/src/rvgcc/./gcc/as: 106: exec: -march=rv64gc: not found configure: failed program was: | /* confdefs.h */ | #define PACKAGE_NAME "GNU C Runtime Library" | #define PACKAGE_TARNAME "libgcc" | #define PACKAGE_VERSION "1.0" | #define PACKAGE_STRING "GNU C Runtime Library 1.0" | #define PACKAGE_BUGREPORT "" | #define PACKAGE_URL "http://www.gnu.org/software/libgcc/ <http://www.gnu.org/software/libgcc/>" | /* end confdefs.h. */ | | int | main () | { | | ; | return 0; | } configure:3785: error: in `/home/borys/src/rvgcc/riscv64-elf/libgcc': configure:3787: error: cannot compute suffix of object files: cannot compile See `config.log' for more details
