Hello, bumping this issue since there has been no activity for a while and this error is still present. I get the exact same error as Denis when building any Pine64 images. Building with --system=aarch64-linux instead of --target=aarch64-linux-gnu works, but this is very much slower.
This is what I get: > checking for string.h... (cached) yes > checking whether NLS is requested... yes > checking for msgfmt... no > checking for gmsgfmt... : > checking for xgettext... no > checking for msgmerge... no > checking build system type... x86_64-unknown-linux-gnu > checking host system type... Invalid configuration `aarch64-linux-gnu': > machine `aarch64' not recognized > configure: error: > /gnu/store/rb75igdc6daly1mz2ivz7rs8hd85imdz-gash-boot-0.3.0/bin/bash > ./config.sub aarch64-linux-gnu failed > error: in phase 'configure': uncaught exception: > srfi-34 #<condition &invoke-error [program: > "/gnu/store/rb75igdc6daly1mz2ivz7rs8hd85imdz-gash-boot-0.3.0/bin/bash" > arguments: ("./configure" "CC_FOR_BUILD=gcc" > "CONFIG_SHELL=/gnu/store/rb75igdc6daly1mz2ivz7rs8hd85imdz-gash-boot-0.3.0/bin/bash" > "SHELL=/gnu/store/rb75igdc6daly1mz2ivz7rs8hd85imdz-gash-boot-0.3.0/bin/bash" > "--prefix=/gnu/store/bl3aq7fnpyxq9w2a7bqa4zqgd8z88y8x-gawk-mesboot-3.1.8" > "--enable-fast-install" "--build=x86_64-unknown-linux-gnu" > "--host=aarch64-linux-gnu" "ac_cv_func_connect=no") exit-status: 1 > term-signal: #f stop-signal: #f] 152c4c0> > phase `configure' failed after 38.7 seconds > command > "/gnu/store/rb75igdc6daly1mz2ivz7rs8hd85imdz-gash-boot-0.3.0/bin/bash" > "./configure" "CC_FOR_BUILD=gcc" > "CONFIG_SHELL=/gnu/store/rb75igdc6daly1mz2ivz7rs8hd85imdz-gash-boot-0.3.0/bin/bash" > "SHELL=/gnu/store/rb75igdc6daly1mz2ivz7rs8hd85imdz-gash-boot-0.3.0/bin/bash" > "--prefix=/gnu/store/bl3aq7fnpyxq9w2a7bqa4zqgd8z88y8x-gawk-mesboot-3.1.8" > "--enable-fast-install" "--build=x86_64-unknown-linux-gnu" > "--host=aarch64-linux-gnu" "ac_cv_func_connect=no" failed with status 1 Other cross-compiled images like Raspberry Pi work fine for me.