Re: [PATCH 1/7] gnu: lua: Build with support for dynamic libraries.

[Ricardo Wurmus <rekado@elephly.net>]

gno <gnopap@gmail.com> writes:

> On Mon, 22 Aug 2016 21:39:12 +0200
> Ricardo Wurmus <rekado@elephly.net> wrote:
>
>> * gnu/packages/lua.scm (lua)[arguments]: Use regular build phase and
>> add make-flags.
>> ---
>>  gnu/packages/lua.scm | 10 ++++++----
>>  1 file changed, 6 insertions(+), 4 deletions(-)
>> 
>> diff --git a/gnu/packages/lua.scm b/gnu/packages/lua.scm
>> index b4b5dee..52606f4 100644
>> --- a/gnu/packages/lua.scm
>> +++ b/gnu/packages/lua.scm
>> @@ -4,6 +4,7 @@
>>  ;;; Copyright © 2014 Mark H Weaver <mhw@netris.org>
>>  ;;; Copyright © 2014 Andreas Enge <andreas@enge.fr>
>>  ;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
>> +;;; Copyright © 2016 Ricardo Wurmus <rekado@elephly.net>
>>  ;;;
>>  ;;; This file is part of GNU Guix.
>>  ;;;
>> @@ -44,14 +45,15 @@
>>      (inputs `(("readline" ,readline)))
>>      (arguments
>>       '(#:modules ((guix build gnu-build-system)
>> -                    (guix build utils)
>> -                    (srfi srfi-1))
>> +                  (guix build utils)
>> +                  (srfi srfi-1))
>>         #:test-target "test"
>> +       #:make-flags
>> +       '("CFLAGS=-fPIC -DLUA_DL_DLOPEN -DLUA_USE_POSIX"
>> +         "linux")
>>         #:phases
>>         (modify-phases %standard-phases
>>           (delete 'configure)
>> -         (replace 'build
>> -           (lambda _ (zero? (system* "make" "CFLAGS=-fPIC"
>> "linux")))) (replace 'install
>>             (lambda* (#:key outputs #:allow-other-keys)
>>               (let ((out (assoc-ref outputs "out")))
>
>
> This doesn't work for me - lua-lgi still complains about lua not being
> able to dynamically load. But this does work:
>
> (replace 'build
>   (lambda _ (zero? (system* "make"
>      "LDFLAGS=-ldl" "CFLAGS=-fPIC -DLUA_USE_DLOPEN" "linux"))))
>
> I tried adding LDFLAGS in #make-flags to no avail.

I don’t have a package for “lua-lgi” so I cannot reproduce this.  All I
can say is that it appears to work in the case of prosody.  Without
LUA_DL_DLOPEN defined Lua will not even attempt to load dynamic
libraries.

~~ Ricardo