[Bug 2440977] New: luaL_openlibs not exported

https://bugzilla.redhat.com/show_bug.cgi?id=2440977

Bug ID: 2440977
           Summary: luaL_openlibs not exported
           Product: Fedora
           Version: rawhide
                OS: Linux
            Status: NEW
         Component: lua
          Severity: medium
          Assignee: [e-mail]
          Reporter: [e-mail]
        QA Contact: [e-mail]
                CC: [e-mail], [e-mail],
                    [e-mail],
                    [e-mail], [e-mail],
                    [e-mail]
  Target Milestone: ---
    Classification: Fedora

According to the Lua 5.5 doc the function should be available:
https://www.lua.org/manual/5.5/manual.html#luaL_openlibs

But it isn't exported. It's causing rrdtool Lua bindings not to build.

Reproducible: Always

Steps to Reproduce:
1. cat >test.c <<:EOF
char luaL_openlibs ();
int
main ()
{
return luaL_openlibs ();
  ;
  return 0;
}
:EOF
2. gcc -o test test.c -llua

Actual Results:
/usr/bin/ld.bfd: /tmp/ccnn2IFm.o: in function `main':
test.c:(.text+0x5): undefined reference to `luaL_openlibs'
collect2: error: ld returned 1 exit status

Expected Results:
No error

Additional Information:
With Lua 5.4 it works as expected.

[Bug 2440977] luaL_openlibs not exported

https://bugzilla.redhat.com/show_bug.cgi?id=2440977

--- Comment #1 from Jaroslav Škarvada  ---
Related rrdtool FTBFS: https://bugzilla.redhat.com/show_bug.cgi?id=2440557

[Bug 2440977] luaL_openlibs not exported

https://bugzilla.redhat.com/show_bug.cgi?id=2440977

--- Comment #2 from Jaroslav Škarvada  ---
rrdtool configure output:
checking for lua... /usr/bin/lua
checking for lua >= 5.0... 5.5 found
checking for lua55/lua.h... no
checking for lua5.5/lua.h... no
checking for lua.h... yes
checking for lualib.h... yes
checking for lauxlib.h... yes
checking for library containing lua_call... -llua
checking for library containing luaL_openlibs... no
checking for library containing luaL_module... no
checking for library containing luaL_openlib... no
Lua headers found but not the libraries! Please reinstall the dev packages for
Lua 5.5

[Bug 2440977] luaL_openlibs not exported

https://bugzilla.redhat.com/show_bug.cgi?id=2440977

Jaroslav Škarvada  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|                            |2440557

Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=2440557
[Bug 2440557] rrdtool-1.9.0-10.fc45 FTBFS: File not found:
/builddir/build/BUILD/rrdtool-1.9.0-build/BUILDROOT/usr/lib64/lua/5.5/*

[Bug 2440977] luaL_openlibs not exported

https://bugzilla.redhat.com/show_bug.cgi?id=2440977

Tom "spot" Callaway  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED

--- Comment #3 from Tom "spot" Callaway  ---
So, the Lua 5.5 docs are wrong: there is no luaL_openlibs() function in the
code anymore. It's been replaced with luaL_openselectedlibs(), and you can see
that in the lualib.h header:

#define luaL_openlibs(L)        luaL_openselectedlibs(L, ~0, 0)

The rrdtool configure check needs to be updated to look for
luaL_openselectedlibs(), ideally when lua 5.5+ is found, but crudely, as an
optional function in the list it is already trying.

[Bug 2440977] luaL_openlibs not exported

https://bugzilla.redhat.com/show_bug.cgi?id=2440977

--- Comment #4 from Jaroslav Škarvada  ---
Thanks, I will forward to rrdool upstream.

[Bug 2440977] luaL_openlibs not exported

https://bugzilla.redhat.com/show_bug.cgi?id=2440977

Jaroslav Škarvada  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |CLOSED
         Resolution|---                         |NOTABUG
        Last Closed|                            |2026-02-19 14:28:55