問題如下：
aarch64-linux-gnu-gnatlink-12 ghdl_jit.ali -o ghdl_mcode -g -O memsegs_c.o jumps.o times.o grt-cstdio.o grt-cgnatrts.o grt-no_sundials_c.o grt-cvpi.o grt-cvhpi.o grt-cdynload.o fstapi.o lz4.o fastlz.o -ldl -lm -Wl,--version-script=/home/user/Downloads/ghdl/./src/grt/grt.ver -Wl,--export-dynamic -shared-libgcc /usr/bin/ld: ./ortho_code-x86-abi.o: in function `ortho_code__x86__abi__link_intrinsics': /home/user/Downloads/ghdl/src/ortho/mcode/ortho_code-x86-abi.adb:875: undefined reference to `__muldi3' /usr/bin/ld: /home/user/Downloads/ghdl/src/ortho/mcode/ortho_code-x86-abi.adb:875: undefined reference to `__muldi3' /usr/bin/ld: /home/user/Downloads/ghdl/src/ortho/mcode/ortho_code-x86-abi.adb:879: undefined reference to `__divdi3' /usr/bin/ld: /home/user/Downloads/ghdl/src/ortho/mcode/ortho_code-x86-abi.adb:879: undefined reference to `__divdi3' /usr/bin/ld: /home/user/Downloads/ghdl/src/ortho/mcode/ortho_code-x86-abi.adb:883: undefined reference to `__moddi3' /usr/bin/ld: /home/user/Downloads/ghdl/src/ortho/mcode/ortho_code-x86-abi.adb:883: undefined reference to `__moddi3' collect2: error: ld returned 1 exit status aarch64-linux-gnu-gnatlink-12: error when calling /usr/bin/aarch64-linux-gnu-gcc-12 gnatmake: *** link failed. make: *** [Makefile:222: ghdl_mcode] Error 4
解法如下：
$ sudo apt install llvm llvm-dev clang $ ./configure --with-llvm-jit