Re: [PATCH 2/5] gnu: Build lua-5.2 with dynamic library support.

[ludo@gnu.org (Ludovic Courtès)]

Leo Famulari <leo@famulari.name> skribis:

> * gnu/packages/lua.scm (lua-5.2)[arguments]: Rewrite make-flags so that
>   Lua is built with platform-specific instructions for shared library
>   loading (dlopen).

Please move the explanations as a comment in the code.

>         #:phases (alist-replace
>                   'build
> -                 (lambda _ (zero? (system* "make" "CFLAGS=-fPIC" "linux")))
> +                 (lambda _ (zero? (system* "make"
> +                                           "PLAT=linux"
> +                                           "MYCFLAGS=-fPIC"
> +                                           "MYLDFLAGS=-fPIC")))

How can I test whether this works as expected?  I tried this, but I’m
unsure whether it’s supposed to load OpenSSL’s libssl.so directly or
not:

--8<---------------cut here---------------start------------->8---
$ ./pre-inst-env guix environment --ad-hoc lua-5.2 openssl 
[env]$ echo $PATH
/gnu/store/zmqhwsl9vvxr4ihdnhwwpc3dpgmpsgsy-openssl-1.0.2d/bin:/gnu/store/9wmsrx7s9ydln5vgddms3cfavaiigwq2-lua-5.2.3/bin:/home/ludo/src/guix/scripts:/home/ludo/src/guix:/home/ludo/soft/bin:/home/ludo/.opam/system/bin:/home/ludo/.guix-profile/bin:/home/ludo/.guix-profile/sbin:/run/setuid-programs:/run/current-system/profile/bin:/run/current-system/profile/sbin
[env]$ export LD_LIBRARY_PATH=/gnu/store/zmqhwsl9vvxr4ihdnhwwpc3dpgmpsgsy-openssl-1.0.2d/lib
[env]$ lua -lssl
lua: module 'ssl' not found:
	no field package.preload['ssl']
	no file '/usr/local/share/lua/5.2/ssl.lua'
	no file '/usr/local/share/lua/5.2/ssl/init.lua'
	no file '/usr/local/lib/lua/5.2/ssl.lua'
	no file '/usr/local/lib/lua/5.2/ssl/init.lua'
	no file './ssl.lua'
	no file '/usr/local/lib/lua/5.2/ssl.so'
	no file '/usr/local/lib/lua/5.2/loadall.so'
	no file './ssl.so'
stack traceback:
	[C]: in function 'require'
	[C]: in ?
--8<---------------cut here---------------end--------------->8---

Apologies in advance if I’m just asking stupid questions!

Besides, it would be nice to get rid of these hard-coded /usr/local in a
subsequent patch.

Ludo’.