Re: odbc_config missing
Hi,
On Wed, Jul 20, 2022 at 9:32 PM Greg Wooledge <greg@wooledge.org> wrote:
>
> On Wed, Jul 20, 2022 at 09:12:51PM -0500, Igor Korot wrote:
> > And those are what was made on Debian with the same Makefile.am:
>
> OK!
>
> [...]
> > /bin/bash ../libtool --tag=CXX --mode=link g++ -I../../dbinterface
> > -DUNICODE -DUNIXODBC -I`odbc_config --cflags` -g -O0 -L../dbinterface
> > -ldbinterface `odbc_config --libs` -lodbcinst -o libodbc_lib.la
> > -rpath /usr/local/lib libodbc_lib_la-database_odbc.lo
> > /bin/bash: line 1: odbc_config: command not found
> > /bin/bash: line 1: odbc_config: command not found
>
> You're missing -lodbc here. Presumably that should have come from
> your backtick command, which obviously failed, because it's not the
> correct command substitution for this platform.
Do you mean to say that the backticks are not supported on Debian?
Or that there is no odbc_config installed when it should?
>
> You either need to find a command substitution that works on ALL of your
> platforms, or you need to put something in ./configure which tries
> all known commands and selects the one that appears to work, or else you
> need to just throw all the commands into one big ugly horrible linker
> invocation, something like:
>
> ../libtool --tag=CXX --mode=link g++ ... \
> $(odbc_config --libs 2>/dev/null) \
> $(pkg-config --libs whatever 2>/dev/null) \
That's definitely ugly.
> ...
>
> Or ask an ODBC developers' support channel how you're supposed to do it
> on all the platforms you wish to support.
The way to do it is by using odbc_config.
I already asked and that's why I'm using it.
>
> > As you can see the build succeeded.
> >
> > But after running "make install" trying to load that library will fail
> > because the library
> > libodbc.so will not be found.
>
> I believe that's caused by the missing -lodbc linker argument. But please
> bear in mind that I haven't done serious C development work in many years,
> and I've never worked with ODBC in this way before.
You are presumably right.
Trouble is - I'm doing it correctly and it's Debian who is at fault
(see above)..
Now, it is possible that odbc_config is just called pkg-config where available
or vice versa.
But the official way from upstream is to use odbc_config.
Thank you.
>
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