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- Subject: Re: RTLD_GLOBAL on Mac OS X
- From: Roberto Ierusalimschy <roberto@...>
- Date: Mon, 28 Nov 2011 10:36:31 -0200
> ll_load() in Lua 5.2's loadlib.c either passes RTLD_GLOBAL or 0, according to
> the value of `seeglb'. But my OS X dlopen(3) man page says
>
> If neither RTLD_GLOBAL nor RTLD_LOCAL is specified, the default is
> RTLD_GLOBAL.
>
> On OS X RTLD_LOCAL is not defined to be 0, but 0x4.
>
> I haven't tested to see if it truly makes a difference since dynamic linking
> on OS X is not my strong suit, but thought I should bring it up in case
> someone more familiar with Mach-O versioning knows better.
>
> - Bill
Thanks for the report. As Tony noted, POSIX does not define a default,
so ll_load should use RTLD_LOCAL instead of 0.
-- Roberto
