As per this old thread [1], one cannot mix softmmu with static.

We need linux-user type of target. This commit combines --static with
--riscv64-linux-user mode.

[1] https://lists.gnu.org/archive/html/qemu-devel/2011-11/msg02878.html

Signed-off-by: Artyom Gevorgyan <artemhevorgian@gmail.com>

Author: gevorgyana

build.sh

@@ -13,7 +13,7 @@ git apply ../tweak_linux_config_options.patch
 echo 'Successfully applied the required patches. Configuring now...'
 # Most importantly, note '--static'
 mkdir build-riscv64 && cd build-riscv64
-../configure --target-list=riscv64-softmmu --static --audio-drv-list=""  --without-default-devices --disable-vnc
+../configure --target-list=riscv64-linux-user --static --disable-vnc --without-default-devices
 
 echo "Successfully configured. Building now..."
 # On my machine, configuration step did not collect all the dependencies