gistfile1.txt

#!/bin/sh
shopt -s nullglob
ARCHS="x86_64 riscv64 aarch64"
SRC_DIRS="src/* src/malloc/mallocng crt ldso"

for src in $SRC_DIRS; do
    BASE_GLOBS="$BASE_GLOBS $src/*.c"
    for ARCH in $ARCHS; do
        if [ -d "$src/$ARCH" ]; then
            glob_var=ARCH_${ARCH}_GLOBS
            echo $glob_var
            globs=$(eval echo "$""$glob_var $src/$ARCH/*.c $src/$ARCH/*.s $src/$ARCH/*.S")
            eval $glob_var="$(echo $globs)"
        fi
    done
done