I'm afraid I was celebrating too early.  make build succeeded, but sage 
doesn't start anymore now.  I guess I should start from scratch. :-(

Am Mittwoch, 15. Januar 2020 14:07:49 UTC+1 schrieb Martin R:
>
> BINGO!!!
>
> Many many many thanks!
>
> Martin
>
> Am Mittwoch, 15. Januar 2020 14:00:29 UTC+1 schrieb Dima Pasechnik:
>>
>> Note that you need to uninstall bzip2, xz, pcre, readline, curl before 
>> the corresponding system 
>> versions are picked up by ./configure (of course all this is not 
>> needed for fresh builds...) 
>>
>> if this does not help please post config.log 
>>
>> On Wed, Jan 15, 2020 at 12:53 PM 'Martin R' via sage-release 
>> <[email protected]> wrote: 
>> > 
>> > 
>> > 
>> > Am Mittwoch, 15. Januar 2020 13:23:17 UTC+1 schrieb Dima Pasechnik: 
>> >> 
>> >> On Wed, Jan 15, 2020 at 12:13 PM 'Martin R' via sage-release 
>> >> <[email protected]> wrote: 
>> >> > 
>> >> > Oh dea, this is becoming strange: 
>> >> > 
>> >> > The output of configure says that 
>> >> > 
>> >> > atlas, openblas, iconv will NOT be installed, but 
>> >> > 
>> >> > bzip2-1.0.6-20150304.p0 
>> >> > readline-6.3.008.p0 
>> >> > xz-5.2.2.p0 
>> >> > pcre-8.40.p2 
>> >> > curl-7.62.0.p0 
>> >> > 
>> >> > However, I certainly have bzip2, xz, pcre and curl on my system, and 
>> I guess also readline. 
>> >> > 
>> >> > Might there be a bug in configure? 
>> >> 
>> >> You need development versions of these, see 
>> >> 
>> https://doc.sagemath.org/html/en/installation/source.html#linux-recommended-installation
>>  
>> >> 
>> >> So, on Ubuntu: 
>> >> 
>> >> libbz2-dev 
>> >> libreadline-dev (seems to be missing in docs) 
>> >> liblzma-dev (this is the xz lib, iirc) 
>> >> libpcre3-dev 
>> >> libcurl4-openssl-dev 
>> > 
>> > 
>> >> 
>> >> the last of these, libcurl4-openssl-dev was indeed missing, but 
>> configure still wants to build r :-( 
>> > 
>> > 
>> > Martin 
>> >> 
>> >> 
>> >> 
>> >> > 
>> >> > Martin 
>> >> > 
>> >> > Am Mittwoch, 15. Januar 2020 13:00:51 UTC+1 schrieb Dima Pasechnik: 
>> >> >> 
>> >> >> On Wed, Jan 15, 2020 at 11:35 AM 'Martin R' via sage-release 
>> >> >> <[email protected]> wrote: 
>> >> >> > 
>> >> >> > Am Mittwoch, 15. Januar 2020 12:02:30 UTC+1 schrieb Dima 
>> Pasechnik: 
>> >> >> >> 
>> >> >> >> On Wed, Jan 15, 2020 at 10:37 AM 'Martin R' via sage-release 
>> >> >> >> <[email protected]> wrote: 
>> >> >> >> > 
>> >> >> >> > Thanks again!  It still tries to build R and fails 
>> >> >> >> > 
>> >> >> >> > I checked that system R starts, it does (R version 3.4.4) 
>> >> >> >> Please also make sure that 
>> >> >> >> 
>> >> >> >> pkg-config --modversion libR 
>> >> >> >> 
>> >> >> >> outputs the version. 
>> >> >> >> 
>> >> >> > Yes, it does. 
>> >> >> > 
>> >> >> >> 
>> >> >> >> However there is just no "checking for R" message in your 
>> config.log, 
>> >> >> >> it indicates that there are still remains of R left 
>> >> >> >> in your installation. 
>> >> >> >> 
>> >> >> >> I've opened https://trac.sagemath.org/ticket/29016 
>> >> >> >> to deal with R being hard to clean away - feel free to try it. 
>> >> >> >> 
>> >> >> >> Maybe you also need to run 
>> >> >> >> 
>> >> >> >> make r-clean 
>> >> >> > 
>> >> >> > 
>> >> >> > I did that, it says that there is no legacy uninstaller for r, 
>> and that there is nothing to do.  I checked for the files in the ticket, 
>> but none of them exists. :-( 
>> >> >> > 
>> >> >> > The config.log contains the lines 
>> >> >> > 
>> >> >> > configure:18950: checking installing any of atlas openblas iconv 
>> readline bzip2 xz pcre curl? 
>> >> >> > configure:18954: result: yes; install r as well 
>> >> >> > 
>> >> >> > but I do not know how to find out which of those (atlas openblas 
>> iconv readline bzip2 xz pcre curl) is the problem. 
>> >> >> 
>> >> >> The easiest is to look at the output of ./configure 
>> >> >> It should contain lines like 
>> >> >> 
>> >> >> atlas-3.10.2.p3 will not be installed (configure check) 
>> >> >> 
>> >> >> for each of the packages in that list. 
>> >> >> So for any of these that are not marked this way, please install 
>> the 
>> >> >> corresponding system package 
>> >> >> and re-run configure. 
>> >> >> 
>> >> >> 
>> >> >> 
>> >> >> > 
>> >> >> > Martin 
>> >> >> > 
>> >> >> > -- 
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>>  
>>
>> >> > 
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>> > 
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>>
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