configure doesn't detect the package.path, or package.cpath about luaposix HOT 6 CLOSED

And I'm sorry, I know feature requests best come with patches, but I don't know how to do this with autotools.

from luaposix.

Installing compiled modules in /usr/local/lib would be the preferred method on BSD derived systems (they install everything not in the base system into /usr/local).

from luaposix.

Ferroin, do you mean IN /usr/local/lib, or UNDER /usr/local/lib?

luaposix defaults to

/usr/local/lib/posix_c.so

but default lua search paths (BSD builds could override this) would only search for

/usr/local/lib/lua/5.X/posix_c.so

from luaposix.

The code below can be used to find the first of lua's path and cpath that start with /. It should be possible for autotools to call this or something similar to ensure it installs into a location that lua can use.

If its going to fall back to a hard-coded default, I suggest falling back to the paths the default lua makefile uses would be sensible, ($EPREFIX)/lib/lua/5.X/ for .so, and ($PREFIX)/share/lua/5.X/ for .lua.

function first(paths, ext)
for path in string.gmatch(paths, "[^;]") do
local root = string.match(path, "^(/.)/%?%."..ext.."$")
if root then
return root
end
end
end
function firstpath()
return first(package.path, "lua")
end
function firstcpath()
return first(package.cpath, "so")
end
print("path", firstpath())
print("cpath", firstcpath())

from luaposix.

Under in this case.

I do know some people who use /usr/local/lib/lua without the version number though.

from luaposix.

The use of --libdir and --datadir here are entirely standard. Lua libraries (.lua) are data files, hence --datadir; Lua C libraries (.so &c.) are object files, hence --libdir.

I agree that it would be nice if configure could work out where to install the libraries.

In any case, this is not a luaposix issue, it's an ax_lua.m4 issue. To put it another way, there's no point changing anything here in a luaposix-specific way. Hence, please file it against tprk77/lua-autoconf.

Note finally that you only run into this problem if you insist on using configure directly, and not luarocks. Luarocks is the easy way to install, and it knows to set --libdir and --datadir.

from luaposix.