On Sun, 22 Apr 2001, Sinisa Milivojevic wrote:
> Wm Terry writes:
> > I seem to have a problem similar to others, but none of the suggested
> > solutions seem to solve it. It's the standard "undefined reference to
> > `compress'" while using MySQL++. What am I missing. Many solutions
> > appear to address libmysqlclient. So I'm not sure if the problem is
> > MySQL or MySQL++ oriented (though MySQL is working fine and the MySQL++
> > examples make fine).
> >
> >
> > $ make metamgrd
> > gcc -c -g -I/usr/local/mysql metamgrd.C
> > gcc -static metamgrd.o sock.o cfgfile.o cfgitem.o err.o -o ./metamgrd
> > -lstdc++ -L/usr/lib/mysql -lz -lmysqlclient -lsqlplus
> > /usr/lib/mysql/libmysqlclient.a(my_compress.o): In function
> > `my_uncompress':
> > my_compress.o(.text+0x97): undefined reference to `uncompress'
> > /usr/lib/mysql/libmysqlclient.a(my_compress.o): In function
> > `my_compress_alloc':
> > my_compress.o(.text+0x126): undefined reference to `compress'
> > collect2: ld returned 1 exit status
> > make: *** [metamgrd] Error 1
> >
> >
> > I've remade a MySQL++ example for grins and it works fine.
> >
> > # make simple1
> > c++ -DHAVE_CONFIG_H -I. -I. -I.. -I../sqlplusint -I../sqlplusint
> > -I/usr/local/mysql/include/mysql -g -O2 -c simple1.cc
> > /bin/sh ../libtool --mode=link c++ -g -O2 -L/usr/local/mysql/lib/mysql
> > -o simple1 simple1.o ../sqlplusint/libsqlplus.la -lz -lmysqlclient
> > c++ -g -O2 -L/usr/local/mysql/lib/mysql -o .libs/simple1 simple1.o
> > ../sqlplusint/.libs/libsqlplus.so -lz -lmysqlclient -lz -lmysqlclient
> > -Wl,--rpath -Wl,/usr/local/lib
> > creating simple1
> >
> > Running simple1 causes a core dump, but I'm guessing that has to do with
> > not having the appropriate db and dbaccess (didn't modify the code). I
> > figured I'd start by using modified parts of the examples in my own app
> > and that that would be just as good a test (if I can make it).
> >
> >
> > I have checked and config.h for MySQL does have HAVE_COMPRESS defined.
> > I've rebuilt MySQL and MySQL++ from scratch (started with the MySQL RPM
> > install when I build the system - first time I've used development stuff
> > from an RPM, so I decided to start from scratch just to make sure).
> >
> >
> > gcc version 2.96 20000731 (Red Hat Linux 7.0)
> > Linux 2.2.16-22smp #1 SMP Tue Aug 22 16:39:21 EDT 2000 i686 unknown
> >
> >
> > Help would be greatly appreciated.
> >
> >
> > Thanks, William
> >
>
>
> Hi!
>
> First, regarding core dump, please rebuild MySQL++ with this
> connection.cc :
>
> [ Part 2, Application/OCTET-STREAM 6KB. ]
> [ Cannot display this part. Press "V" then "S" to save in a file. ]
>
>
> [ Part 3: "message body text" ]
>
>
>Second, downgrade to 2.95.2 as 2.96 is very buggy when it comes to
>C++.
>
>Third, compress and uncompress are defined in zlib library.
>
>The above is a bug in your linker. Try including static zlib in a link
>args.
When you say the bug is in the linker, do you mean in the linker app
itself or how I'm using it? In terms of the static zlib, don't I have that
covered with
gcc -static metamgrd.o sock.o cfgfile.o cfgitem.o err.o -o ./metamgrd \
-lstdc++ -L/usr/lib/mysql -lz -lmysqlclient -lsqlplus
or am I missing something else?
>Regards,
>
>Sinisa
>
> ____ __ _____ _____ ___ == MySQL AB
> /*/\*\/\*\ /*/ \*\ /*/ \*\ |*| Sinisa Milivojevic
> /*/ /*/ /*/ \*\_ |*| |*||*| mailto:[EMAIL PROTECTED]
> /*/ /*/ /*/\*\/*/ \*\|*| |*||*| Larnaca, Cyprus
> /*/ /*/ /*/\*\_/*/ \*\_/*/ |*|____
> ^^^^^^^^^^^^/*/^^^^^^^^^^^\*\^^^^^^^^^^^
> /*/ \*\ Developers Team
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>
___________W__i__l__l__i__a__m_____D__a__n_____T__e__r__r__y___________
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[ Part 2, Application/OCTET-STREAM 6KB. ]
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[ Part 3: "message body text" ]
Second, downgrade to 2.95.2 as 2.96 is very buggy when it comes to
C++.
Third, compress and uncompress are defined in zlib library.
The above is a bug in your linker. Try including static zlib in a link
args.
Regards,
Sinisa
____ __ _____ _____ ___ == MySQL AB
/*/\*\/\*\ /*/ \*\ /*/ \*\ |*| Sinisa Milivojevic
/*/ /*/ /*/ \*\_ |*| |*||*| mailto:[EMAIL PROTECTED]
/*/ /*/ /*/\*\/*/ \*\|*| |*||*| Larnaca, Cyprus
/*/ /*/ /*/\*\_/*/ \*\_/*/ |*|____
^^^^^^^^^^^^/*/^^^^^^^^^^^\*\^^^^^^^^^^^
/*/ \*\ Developers Team
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