Re: [Orclib-users] newbie question on installing OCILIB on Linux (CentOS)

[vincent r. <vin...@ya...>]

Hi,

QUESTION 1 : Yes
QUESTION 2 : the only disavantage might (i'm not sure) is about the charset
handling. the instant client might not handle all possible charsets.
QUESTION 3 : correct
QUESTION 4 : if you use gcc, you might add "-m64" to the CFLAGS variable if
you using  64bits Oracle shared lib

Regards,

Vincent

On Tue, Mar 13, 2012 at 3:05 AM, <mod...@co...> wrote:

> Hi, I'm new to OCILIB but would like to use the latest version to connect
> my ANSI C programs (using GCC compiler) on a (Linux) CentOS 6.2 server to
> talk to an Oracle 11.2 database on a CentOS 5.6 server.
>
> I have some newbie questions...
>
> The documentation states in the Requirements section: "An Oracle client
> (regular or Instant) (note that the client is not required for
> compilation)".
>
> QUESTION 1: Does this mean an Oracle client (regular or instant) is ALWAYS
> required, even though it may not be needed for compilation? That is, an
> Oracle client is ALWAYS needed for the OCI libraries at the very least,
> right?
>
> QUESTION 2: Concerning OCILIB, is/are there any advantage(s) or
> disadvantage(s) in selecting the Regular versus Instant client? Since they
> both contain the OCI libraries, either should work equally well. I see in
> the documentation there are differences in the GNU install options (e.g.
> --with-oracle-headers-path and --with-oracle-lib-path are meant to be used
> with Instant client only, etc.), but other than that, are there any
> considerations I should be aware of? (My only use for the Oracle client is
> for OCILIB.)
>
> QUESTION 3: I couldn't find any examples for configure options. If I use
> the "Oracle Instant Client", am I understanding the installation
> documentation correctly by installing as follows?
>
> # cd /path/to/OCILIB/install/directory
> # ./configure --with-oracle-headers-path /path/to/OCI/public/headers
> --with-oracle-lib-path /path/to/directory/containing/the/file/libclntsh.so
> # ./make
> # su root
> # ./make install
>
> I need "ANSI" charset and "linkage" options, which should occur by default.
>
> QUESTION 4: Can someone help me understand what this means: "To compile
> native 64 bits versions of OCILIB, you need pass your compiler specifics
> flags to the configure script."
>
> My CentOS 6.2 (linux) server is 64 bits. Does that mean I want to compile
> 64 bit versions of OCILIB? (is that common practice?) If so, I didn't see
> any compiler specific flags documented for the configure script -- is this
> outside of OCILIB documentation (where can I find them, or can someone let
> me know what to use)?
>
> Thanks in advance for any help. GKK
>
>
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-- 
Vincent Rogier