APKBUILD examples:Permissions
If the source files have strange permissions you can easily fix this in your APKBUILD.
# Fix subdir perms find "$subpkgdir"/usr/share/doc/$pkgname/ -type d \ -exec chmod 755 '{}' \; || return 1 find "$subpkgdir"/usr/share/$pkgname/ -type d \ -exec chmod 755 '{}' \; || return 1