installing Community 2018 gnatcoll on Debian vs -liconv

installing Community 2018 gnatcoll on Debian vs -liconv

[Stephen Leake]

I'm trying to install gnatcoll for Community 2018 on Debian from source, and it's complaining it can't find -liconv.

I need to install from source because the gnatcoll included in the binary install doesn't include the xref package. For some reason, the xref package requires -liconv.

I have previously installed gnatcoll gpl 2017, and it found -liconv with no problem; I don't understand what changed.

I can usually debug this sort of thing, but this one has me stumped. I managed to make it work on Windows!

Apparently in Debian iconv is provided by libc6 (although I can no longer find the web page I got that from); I have the libc6-dev package installed.

On the other hand, I can't find libiconv.a; I tried:

find /lib -name "*iconv*"
find /usr/lib -name "*iconv*"

nothing showed up.

Where is -liconv in Debian?

Re: installing Community 2018 gnatcoll on Debian vs -liconv

[Michael Rohan]

Hi,

Related to GNAT 2018 and libiconv: I had to adjust my LD_LIBRARY_PATH on Ubuntu to include the lib/gps directory to support the ld.so libiconv.so dependency for gnatdoc.  Just fyi, not related to building from source.

Take care,
Michael.

On Wednesday, August 1, 2018 at 3:45:22 PM UTC-7, Stephen Leake wrote:
> I'm trying to install gnatcoll for Community 2018 on Debian from source, and it's complaining it can't find -liconv.
> 
> I need to install from source because the gnatcoll included in the binary install doesn't include the xref package. For some reason, the xref package requires -liconv.
> 
> I have previously installed gnatcoll gpl 2017, and it found -liconv with no problem; I don't understand what changed.
> 
> I can usually debug this sort of thing, but this one has me stumped. I managed to make it work on Windows!
> 
> Apparently in Debian iconv is provided by libc6 (although I can no longer find the web page I got that from); I have the libc6-dev package installed.
> 
> On the other hand, I can't find libiconv.a; I tried:
> 
> find /lib -name "*iconv*"
> find /usr/lib -name "*iconv*"
> 
> nothing showed up.
> 
> Where is -liconv in Debian?

Re: installing Community 2018 gnatcoll on Debian vs -liconv

[briot.emmanuel]

lib iconv is in fact part of libc directly.

But apparently AdaCore forgot that detail (I guess in their context they find -liconv because it is part of gcc or some such). They wanted to simplify the setup by getting rid of `configure` (which is good for Windows
users), but they made things harder for most people...

The workaround I have found is to set the variable

        export GNATCOLL_ICONV_OPT" = "-lc"

Emmanuel

Re: installing Community 2018 gnatcoll on Debian vs -liconv

[Stephen Leake]

On Thursday, August 2, 2018 at 2:38:39 AM UTC-5, briot.e...@gmail.com wrote:
> lib iconv is in fact part of libc directly.
> 
> But apparently AdaCore forgot that detail (I guess in their context they find -liconv because it is part of gcc or some such). They wanted to simplify the setup by getting rid of `configure` (which is good for Windows
> users), but they made things harder for most people...
> 
> The workaround I have found is to set the variable
> 
>         export GNATCOLL_ICONV_OPT" = "-lc"

I finally got around to trying this, and it works for me.

Thanks.
> 
> Emmanuel