Re: Can't luarocks and/or the luaposix rockspec be a little smarter?

[Hisham <h@...>]

On 20 June 2016 at 19:03, Dirk Laurie <dirk.laurie@gmail.com> wrote:
> 2016-06-20 23:37 GMT+02:00 Peter Melnichenko <mpeterval@gmail.com>:
>> On Mon, Jun 20, 2016 at 11:45 PM, Dirk Laurie <dirk.laurie@gmail.com> wrote:
>>> Why can't it check first of all if the output "lua -v" complies with
>>> what is needed? And only if it isn't, start to guess under what
>>> name the alternative interpreter might be available?
>>
>> luaposix just uses whatever luarocks passes to it: it's built using a command
>> that starts with `./configure LUA='$(LUA)'`, where LUA variable is
>> substituted by
>> luarocks, with a wrong value 'lua53' in this case. It should come from
>> `luarocks.site_config`
>> module that is generated on luarocks installation. Could you send its contents?
>> The file is with all other modules, probably in
>> $PREFIX/share/lua/5.3/luarocks/site_config.lua.
>>
>> -- Peter Melnichenko
>>
> $ cat /usr/local/share/lua/5.3/luarocks/site_config.lua
> local site_config = {}
> site_config.LUAROCKS_PREFIX=[[/usr/local]]
> site_config.LUA_INCDIR=[[/home/dirk/include]]
> site_config.LUA_LIBDIR=[[/home/dirk/lib]]
> site_config.LUA_BINDIR=[[/home/dirk/bin]]
> site_config.LUA_INTERPRETER=[[lua53]]
> site_config.LUAROCKS_SYSCONFDIR=[[/usr/local/etc/luarocks]]
> site_config.LUAROCKS_ROCKS_TREE=[[/usr/local]]
> site_config.LUAROCKS_ROCKS_SUBDIR=[[/lib/luarocks/rocks]]
> site_config.LUAROCKS_UNAME_S=[[Linux]]
> site_config.LUAROCKS_UNAME_M=[[x86_64]]
> site_config.LUAROCKS_DOWNLOADER=[[wget]]
> site_config.LUAROCKS_MD5CHECKER=[[md5sum]]
> site_config.LUAROCKS_EXTERNAL_DEPS_SUBDIRS={ bin="bin", lib={ "lib",
> [[lib/x86_64-linux-gnu]] }, include="include" }
> site_config.LUAROCKS_RUNTIME_EXTERNAL_DEPS_SUBDIRS={ bin="bin", lib={
> "lib", [[lib/x86_64-linux-gnu]] }, include="include" }
> return site_config
>
> This configuration (May 2014) was done at a stage when the current
> Lua was 5.2, Lua 5.3 was sitting in my home directory. But luarocks
> itself was updated in March 2015 when the current Lua was 5.3.
>
> Is there a way to ask luarocks to reconfigure?
>
> If not, is it safe to just edit the config file manually?

Yes, it is safe.

-- Hisham