Date: Fri, 22 Sep 2000 17:01:05 +0200 (CEST) From: Espen Skoglund <esk@ira.uka.de> To: Maxim Sobolev <sobomax@FreeBSD.org> Cc: Espen Skoglund <esk@ira.uka.de>, ports@FreeBSD.org Subject: Re: Modifying linkopts in libtool Message-ID: <14795.29665.324923.882046@i30nb2.ira.uka.de> In-Reply-To: <39CB72B3.4B256183@FreeBSD.org> References: <14795.15262.123604.865457@i30nb2.ira.uka.de> <39CB6ADF.2976F4EF@FreeBSD.org> <14795.28046.251154.85719@i30nb2.ira.uka.de> <39CB72B3.4B256183@FreeBSD.org>
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[Maxim Sobolev]
> Espen Skoglund wrote:
>> [Maxim Sobolev]
>>> Espen Skoglund wrote:
>>>> Hi,
>>>>
>>>> I was trying to create a port containing a shared library using
>>>> the _fini() function for cleanup. The package was also using
>>>> libtool, and it had put `linkopts=-nostdlib' in its ltmain.sh in
>>>> order avoid conflicts with the _fini() function in crtbeginS.o.
>>>> However, when I specify USE_LIBTOOL in the port-makefile, the
>>>> port-version of libtool is used instead of the one inside the
>>>> package. Does anyone have any suggestion of how to cope with
>>>> this? I thought about modifying the package makefile or
>>>> something, but this is sort of troublesome because libtool
>>>> ignores most of the command line options that you pass to it.
>>>> The soultion that I've currently come up with is to add a
>>>> pre-build target that patches the produced libtool script to
>>>> include the linkopts line above, but I would prefer something
>>>> that could be incorporated into the package.
>>
>>> Add `CONFIGURE_ENV= LDFLAGS="linkopts=-nostdlib"' into port's
>>> Makefile or patch appropriate Makefile.in.
>>
>> Well, this won't work. First of all, the linkopts is a shell
>> variable which is defined in the generated libtool script. Second,
>> setting LDFLAGS or anything in the Makefile won't work because the
>> libtool script tends to ignore most of the arguments given to gcc.
>> As far as I can tell by a quick look through the script, the
>> command line for linking is produced by:
>>
>> archive_cmds="\$CC -shared \$compile_rpath \$libobjs \$deplibs \
>> \$linkopts \${wl}-soname \$wl \$soname -o \$lib"
>>
>> which does not really give any room for extra flags.
> Oh, I see my error. Here is right version:
> `CONFIGURE_ENV= LDFLAGS="-nostdlib"'
Does not work since the libtool script ignores the -nostdlib flag when
producing the actual command line.
eSk
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