Dear Sam:
Thank you for replying. I tried to keep my original message brief, and
must have tried too hard. I also had thought that I should use a preconfigured
installation. I originally installed the FreeBSD libtool package, then
installed the port, and finally installed from source as a last resort. The
courier-auth configure script never could find any of the three installed
ltdl.h files. All ltdl.h files are still installed, and are identical. I tried
copying the original ltdl.h file from /user/local/include to /usr/include,
which does include other header files, but the courier-authlib configure script
still fails with the same error: Unable to find ltdl.h.
You mentioned that I could “pass CPPFLAGS to configure.” Unless you
have a better suggestion about what to try next, please point me toward any
documentation available about how to appropriately pass CPPFLAGS to the
configure script.
With continuing appreciation,
Michael
> On Dec 12, 2016, at 5:22 PM, Sam Varshavchik <mr...@courier-mta.com> wrote:
>
> Michael S. Scaramella, Esq. writes:
>
>> Libtool 2.4.6 and Courier Unicode 1.4 are now reinstalled from source. I ran
>> the Libtool configure script as “./configure --prefix=/usr/local
>> --exec-prefix=/usr/local --sysconfdir=/usr/local/etc/libtool
>> --localstatedir=/var --includedir=/usr/local/include/libtool” which
>> completed successfully. Running gmake and gmake install installed two copies
>> of ldtl.h, one at /usr/local/share/libtool/, and another at
>> /usr/local/include/libtool/. The following are relevant excerpts from the
>> terminal session:
>
> Just because you installed some files in some directory doesn't mean that
> your compiler will automatically find them.
>
> Typically, a compiler searches for header files in /usr/include, and maybe
> /usr/local/include. If you stick something somewhere else, you have to tell
> the compiler, it won't find it for you. You can pass CPPFLAGS to configure,
> to specify an additional compilation flags.
>
> However, your approach is overall wrong. I'm sure that libtool is already
> properly packaged for FreeBSD. I'm sure it's somewhere in the ports tree, and
> all you have to do is install it, and it will be properly installed in
> /usr/include, /usr/lib, and all the usual default system directories, where
> all applications will find them, by default.
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