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Hi,

I'm trying to link the mysql++ library with a simple program and am =
having some trouble. The examples compile and run fine, so I hope it's =
something simple I've overlooked.

I'm using gcc and in my makefile I have the following lines to include =
the appropriate mysql and mysql++ header files and libraries:

# path for mySQL header files
CCFLAGS +=3D -I/usr/include/mysql

# path for mySQL++ header files
CCFLAGS +=3D -I/usr/local/include/mysql++

# path for mySQL client library
LDFLAGS +=3D -L/usr/lib/mysql -lmysqlclient

# path for mySQL++ library
LDFLAGS +=3D -L/usr/local/lib -lmysqlpp

my program seems to compile and link fine. Here is part of the make =
output:

--- Linking /home/xanadu/test/bin/testProgram
/usr/bin/g++ /home/xanadu/test/src/testProgram.cc -L/usr/lib/mysql =
-lmysqlclient -L/usr/local/lib -lmysqlpp -lnsl -lm -o =
/home/xanadu/test/bin/testProgram

Yet when I attempt to run the program, it appears unable to find the =
mysql++ library and gives this error:

error while loading shared libraries: libmysqlpp.so.0: cannot open =
shared object file: No such file or directory

Yet the libraries appear to be in /usr/local/lib where I told make they =
would be. Here's my listing of the usr/local/lib directory:

[xanadu@xanadu src]$ ls -l /usr/local/lib
total 1540
-rwxr-xr-x 1 root root 834 Aug 25 12:38 libmysqlpp.la
lrwxrwxrwx 1 root root 19 Aug 25 12:38 libmysqlpp.so -> =
libmysqlpp.so.0.2.0
lrwxrwxrwx 1 root root 19 Aug 25 12:38 libmysqlpp.so.0 -> =
libmysqlpp.so.0.2.0
-rwxr-xr-x 1 root root 1551825 Aug 25 12:38 libmysqlpp.so.0.2.0

What have I missed?

thanks again for your help!



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On Tue, Aug 30, 2005 at 03:37:46PM -0500, Stephen Povilaitis wrote:
Is /usr/local/lib in /etc/ld.so.conf? Did you run ldconfig after
installing mysql++?

Just taking a wild guess here, since it's not clear what system you're
running on, and use of /usr/local suggests you installed manually.

- Chris


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Stephen Povilaitis wrote:
Please upgrade to 2.0.4. There was an error in the automake setup in
2.0.1 and 2.0.2 that lead to these bogus library sonames.

Aside from that, I think Chris' suggestion is probably correct.

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I upgraded to 2.0.4 and ran ldconf and everything is good now.

Thanks to both of you!


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