invalid mex - libmysqlcppconn not finding glibcxx_3.4.15

Hi there,

I'm running ubuntu 12.04 and matlab R2012a.

Not sure what the problem is exactly, but I can build my mex file just fine. But when it is run I receive this error

Invalid MEX-file '/home/br/Documents/MATLAB/langmod/rss2mysql/mexUrl2dbSrc.mexa64':
/usr/local/MATLAB/R2012a/bin/glnxa64/../../sys/os/glnxa64/libstdc++.so.6: version `GLIBCXX_3.4.15' not
found (required by /usr/local/lib/libmysqlcppconn.so.5)

which I find particularly strange, becuase if I run the following in the terminal

strings /usr/local/MATLAB/R2012a/bin/glnxa64/../../sys/os/glnxa64/libstdc++.so.6 | grep GLIBC

I see:

GLIBCXX_3.4
GLIBCXX_3.4.1
GLIBCXX_3.4.2
GLIBCXX_3.4.3
GLIBCXX_3.4.4
GLIBCXX_3.4.5
GLIBCXX_3.4.6
GLIBCXX_3.4.7
GLIBCXX_3.4.8
GLIBCXX_3.4.9
GLIBCXX_3.4.10
GLIBCXX_3.4.11
GLIBCXX_3.4.12
GLIBCXX_3.4.13
GLIBCXX_3.4.14
GLIBCXX_3.4.15
GLIBCXX_3.4.16
GLIBCXX_3.4.17
GLIBC_2.2.5
GLIBC_2.3
GLIBC_2.14
GLIBC_2.4
GLIBC_2.3.4
GLIBC_2.3.2
GLIBCXX_DEBUG_MESSAGE_LENGTH

What do i do to fix this? Any help would be appreciated, thanks. Brian

Answer 1

[Kaustubha Govind]

I don't understand library dependency resolution completely, but I wonder if libmysqlcppconn.so.5 could be looking at a different version of libstdc++.so? Perhaps you should run mexUrl2dbSrc.mexa64 and /usr/local/lib/libmysqlcppconn.so.5 through the ldd utility to figure out what dependencies they are looking at?