我想使用riscv-gcc。我是从https://github.com/riscv/riscv-gcc得到的，但是当我编译它时，我得到了错误
../../../../build-gcc-newlib-src/libgcc/../gcc/libgcc2.h:139:1: error: no data type for mode 'TI'
In file included from ../../../../build-gcc-newlib-src/libgcc/../gcc/libgcc2.c:57:0:
../../../../build-gcc-newlib-src/libgcc/../gcc/libgcc2.h:138:1: error: no data type for mode 'TI'
../../../../build-gcc-newlib-src/libgcc/../gcc/libgcc2.h:139:1: error: no data type for mode 'TI'
In file included from ../../../../build-gcc-newlib-src/libgcc/../gcc/libgcc2.c:57:0:
../../../../build-gcc-newlib-src/libgcc/../gcc/libgcc2.h:138:1: error: no data type for mode 'TI'
我不知道问题是什么，我使用这个版本来构建FlexPRET项目，而最新版本与FlexPRET不相容。