llvm dev - Jul 2004 - [LLVMdev] ToolRunner.cpp:396: error: `SHLIBEXT' undeclared (firstuse this function)

Hi John,

Please see below, too
>From: John Criswell <criswell at cs.uiuc.edu>
>Date: Tue, 27 Jul 2004 14:57:02 -0500
>
>Henrik Bach wrote:
>>Hi,
>
>Please see below.
>
>>
>>I get this error:
>>------------------
>>ToolRunner.cpp:396: error: `SHLIBEXT' undeclared (first use this
function)
>>ToolRunner.cpp:396: error: (Each undeclared identifier is reported only 
>>once
>>   for each function it appears in.)
>>------------------
>>
>>And the config.log shows that configure has detected that ld on my 
>>platform (Interix) doesn't support shared libraries:
>>------------------
>>configure:6176: checking if gcc supports -c -o file.o
>>configure:6204: gcc -c -g -O2  -o out/conftest2.o conftest.c >&5
>>configure:6208: $? = 0
>>configure:6225: result: yes
>>configure:6251: checking whether the gcc linker 
>>(/opt/gcc.3.3/i586-pc-interix3/bin/ld) supports shared libraries
>>configure:7045: result: no
>>configure:7116: checking how to hardcode library paths into programs
>>configure:7141: result: immediate
>>configure:7155: checking whether stripping libraries is possible
>>configure:7160: result: yes
>>configure:7182: checking dynamic linker characteristics
>>configure:7693: result: no
>>configure:8419: checking if libtool supports shared libraries
>>configure:8421: result: no
>>configure:8424: checking whether to build shared libraries
>>configure:8473: result: no
>>configure:8476: checking whether to build static libraries
>>configure:8480: result: yes
>>configure:8571: creating mklib
>>configure:9115: checking for ld used by g++
>>configure:9182: result: /opt/gcc.3.3/i586-pc-interix3/bin/ld
>>configure:9191: checking if the linker 
>>(/opt/gcc.3.3/i586-pc-interix3/bin/ld) is GNU ld
>>configure:9206: result: yes
>>configure:9257: checking whether the g++ linker 
>>(/opt/gcc.3.3/i586-pc-interix3/bin/ld) supports shared libraries
>>configure:10052: result: no
>>configure:10070: g++ -c -g -O2  conftest.cc >&5
>>configure:10073: $? = 0
>>------------------
>>
>>Is there any hack here to move further with my port of llvm to Interix?
>
>I've looked at the recent libtool documentation, and they don't seem
to
>have any information on whether they support Interfix.
>
>One hack for LLVM is to modify the rules for dynamic linking in 
>Makefile.rules.  You could change the Makefile rules to perform dynamic 
>linking directly instead of using libtool.  You can change the rules to 
>call gcc or ld with whatever options you need to use on Interix.
>
>Another option is to test libtool and see if it works on Interix.  This 
>would be a more correct but more time-consuming fix.
There is a ported libtool for Interix for download and installation.

What's the procedure after installation of the ported libtool then?

Thanks in advance

/Henrik
>
>>
>>
>>/Henrik
>>
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>
>-- John T.
>
>--
>*********************************************************************
>* John T. Criswell                         Email: criswell at uiuc.edu *
>* Research Programmer                                               *
>* University of Illinois at Urbana-Champaign                        *
>*                                                                   *
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Pooh.          *
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Henrik Bach wrote:
> 
> There is a ported libtool for Interix for download and installation.
> 
> What's the procedure after installation of the ported libtool then?
> 
> Thanks in advance
> 
> /Henrik
> 
If you just want to use the libtool program installed for Interix, then 
all you need to do is to change the LIBTOOL variable in Makefile.rules 
to point to your locally installed libtool program.

If you want to add support in your llvm source tree to configure for 
Interix, that would be a little more difficult.  I believe you would 
want to use the libtoolize program to enable libtool support.  I think 
you would do something like:

cd llvm/autoconf
libtoolize -c

That, in turn, should copy over some files, like ltmain.sh and maybe a 
libtool.m4, into the autoconf directory.  Then, the libtool.m4 file 
would need to be merged with acinclude.m4.  The libtoolize program 
should be in your libtool distribution.

My memory is a little fuzzy on this; it's been awhile since I've 
integrated libtool.

-- John T.

-- 
*********************************************************************
* John T. Criswell                         Email: criswell at uiuc.edu *
* Research Programmer                                               *
* University of Illinois at Urbana-Champaign                        *
*                                                                   *
* "It's today!" said Piglet. "My favorite day," said
Pooh.          *
*********************************************************************