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Preparing for iODBC Installation and Setting Environment Variables in UNIX Environment

Document Type | Technical Information

Category | Interface/Integration

Document Number | TIITI033

 

Overview

Before installing iODBC, you need to set up the basic environment and perform preliminary checks.
This article explains how to check the compiler, verify the ODBC driver files, and set environment variables (Profile).
 
 

Method

Check Compiler

You need to verify whether a compiler (cc or gcc) is installed.
Depending on the compiler type, you should apply different CC parameters (compiler parameters) when installing iODBC.
Below is the method to check if the compiler is installed.
$ gcc -v (or cc -v)
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.8.5/lto-wrapper
Target: x86_64-redhat-linux
Configured with: ../configure
  --prefix=/usr
  --mandir=/usr/share/man
  --infodir=/usr/share/info
  --with-bugurl=http://bugzilla.redhat.com/bugzilla
  --enable-bootstrap
  --enable-shared
  --enable-threads=posix
  --enable-checking=release
  --with-system-zlib
  --enable-__cxa_atexit
  --disable-libunwind-exceptions
  --enable-gnu-unique-object
  --enable-linker-build-id
  --with-linker-hash-style=gnu
  --enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto
  --enable-plugin
  --enable-initfini-array
  --disable-libgcj
  --with-isl=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/isl-install
  --with-cloog=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/cloog-install
  --enable-gnu-indirect-function
  --with-tune=generic
  --with-arch_32=x86-64
  --build=x86_64-redhat-linux
Thread model: posix
gcc version 4.8.5 20150623 (Red Hat 4.8.5-11) (GCC)

 

Check libtbodbc.so File

Verify whether the libtbodbc.so file exists in the $TB_HOME/client/lib (or $TB_HOME/client/lib32) directory.
Below is an example execution in a 64bit environment.
 
[Linux] Execution Result
$ file $TB_HOME/client/lib/libtbodbc.so
/tibero/tibero6/client/lib/libtbodbc.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, not stripped

[AIX] Execution Result
$ file $TB_HOME/client/lib/libtbodbc.so
/tibero/tibero6/client/lib/libtbodbc.so: 64-bit XCOFF executable or object module not stripped


PROFILE Setting โ€“ Add Library Path

Add the path of the libtbodbc.so file to the LD_LIBRARY_PATH environment variable in the environment configuration file.
Note
Different environment variables may be used depending on the operating system.
Example) AIX - uses LIBPATH / HP - uses SHLIB_PATH environment variables

[Linux โ†’ .bash_profile]
export LD_LIBRARY_PATH=$TB_HOME/lib:$TB_HOME/client/lib:$LD_LIBRARY_PATH

[AIX โ†’ .profile]
export LIBPATH=$TB_HOME/lib:$TB_HOME/client/lib:$LIBPATH

[HP โ†’ .profile]
export SHLIB_PATH =$TB_HOME/lib:$TB_HOME/client/lib:$ SHLIB_PATH

 

PROFILE Setting โ€“ Add iODBC Environment Variables

Add iODBC related environment variables to the environment configuration file.
 
[Linux โ†’ .bash_profile]
### iodbc setting ###
export IODBC_HOME=$HOME/iodbc
export LD_LIBRARY_PATH=$IODBC_HOME/lib:$LD_LIBRARY_PATH export PATH=$IODBC_HOME/bin:$PATH

[AIX โ†’ .profile]

If the machine is 64bit, add the OBJECT_MODE=64 variable.

### iodbc setting ###
export IODBC_HOME=$HOME/iodbc
export LD_LIBRARY_PATH=$IODBC_HOME/lib:$LD_LIBRARY_PATH export PATH=$IODBC_HOME/bin:$PATH"
export OBJECT_MODE=64

 

 

 

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