Re: [boost] Linking Boost.Python

From: David Abrahams (david.abrahams_at_[hidden])
Date: 2001-11-27 23:34:39

Hi Nokome,

Please visit http://www.boost.org/tools/build/index.html, download the new
pre-built Jam executable and follow the NEW build instructions.

If you still have trouble, please post again.

Thanks,
Dave

----- Original Message -----
From: "Nokome Bentley" <nbentley_at_[hidden]>
To: <boost_at_[hidden]>
Sent: Tuesday, November 27, 2001 10:59 PM
Subject: [boost] Linking Boost.Python

> Hi,
>
> I recently discovered Boost.Python and am very impressed by what it
appears
> to able to do.  I have tried building C++ extensions for Python by hand
and
> appreciate how much easier Boost.Python makes that job.  However, I am
have
> problem getting it to work.  I am a novice at compiling and linking issues
> and would appreciate any assistance.
>
> I am using Win98SE. Up to now I have used Borland 5.5 to build Python
> extensions.  But that bawks at compiling Boost.Python.  So I got gcc
> (version 3.02 as a DJGPP Win32 binary).  I tried to use JAM to build
> Boost.Python but got:
>
> jam -ftools/build/allyourbase.jam -sTOOLS="gcc"
> tools/build/allyourbase.jam: line 1608: syntax error at keyword (
> don't know how to make all
> ...found 1 target...
> ...can't find 1 target...
>
> So I compiled all the Booost.Python cpp files that the Boost.Python docs
> told me to use into an object file, boostpython.o.
>
> Then I compiled the getting_stated2 example:
>
> gxx -Ic:/progra~1/boost_1_25_1 -Ic:/progra~1/python21/include -Wall -c
> getting_started2.cpp
>
> no problems there, so I tried to link it:
>
> gxx -shared -o gs.dll getting_started2.o
> boostpython.o -Lc:/progra~1/python21/libs -lpython21.lib
>
> but get:
>
> gcc.exe: unrecognized option `-shared'
> c:/program files/djgpp/bin/ld.exe: cannot find -lpython21.lib
> collect2: ld returned 1 exit status
>
> I have tried various ways of specifying the path for the python21.lib but
> get the same response.  I am wondering if I am missing something in terms
of
> how I should be linking to the Python library.  Does the Python lib need
to
> be a certain format?  For example, when I used Borland I had to convert
the
> Python lib using COFF2OMF. When I lists the symbols from the Python
library:
>
> nm --print-armap python21.lib
>
> I get a whole lot of names followed by an error:
>
> (snip)
> __imp__PyUnicode_Format in python21.dll
> __imp__initxreadlines in python21.dll
> _initxreadlines in python21.dll
>
> python21.dll:
> BFD: python21.dll: Unrecognized storage class 104 for .idata$2 symbol
> `.idata$2'
>
> BFD: python21.dll: Unrecognized storage class 104 for *UND* symbol
> `.idata$4'
> BFD: python21.dll: Unrecognized storage class 104 for *UND* symbol
> `.idata$5'
> 00000000 i .idata$6
> 000420ff a @comp.id
> 00000000 I __IMPORT_DESCRIPTOR_python21
> U __NULL_IMPORT_DESCRIPTOR
> U python21_NULL_THUNK_DATA
>
> python21.dll:
> 000420ff a @comp.id
> 00000000 I __NULL_IMPORT_DESCRIPTOR
>
> python21.dll:
> 000420ff a @comp.id
> 00000000 I python21_NULL_THUNK_DATA
> c:/progra~1/djgpp/bin/nm.exe: python21.dll: File format not recognized
> c:/progra~1/djgpp/bin/nm.exe: python21.dll: File format not recognized
> c:/progra~1/djgpp/bin/nm.exe: python21.dll: File format not recognized
> (snip)
> c:/progra~1/djgpp/bin/nm.exe: python21.dll: File format not recognized
> Exiting due to signal SIGSEGV
> Page fault at eip=0003e7db, error=0004
> eax=2e31326e ebx=00aceb3c ecx=00acfb2c edx=2e313272 esi=00acfb2c
> edi=0000000b
> ebp=00a88ec0 esp=00a88eb4 program=C:\PROGRA~1\DJGPP\BIN\NM.EXE
> cs: sel=00a7  base=844e5000  limit=feda1fff
> ds: sel=00af  base=844e5000  limit=feda1fff
> es: sel=00af  base=844e5000  limit=feda1fff
> fs: sel=0087  base=0000b150  limit=0000ffff
> gs: sel=00bf  base=00000000  limit=0010ffff
> ss: sel=00af  base=844e5000  limit=feda1fff
> App stack: [00a89000..00a09000]  Exceptn stack: [000555e4..000536a4]
>
> Call frame traceback EIPs:
> 0x0003e7db
> 0x0003786b
> 0x0000583d
> 0x00002736
> 0x00002800
> 0x0000262a
> 0x0003df52
>
> Thanks,
>
> Nokome Bentley
>
> Trophia Ltd   www.trophia.com
> PO Box 60     [phone]
> Kaikoura
> New Zealand
>
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