[lsst-dm-stack-users] Difficulties installing DM on Ubuntu 11

[Heather Kelly]

Hi Dustin,
Yes - I found a reference about that :)
Would you happen to have a suggestion on how to best patch the
Makefile(s) in astrometry.net so that the -lm flag is at the end where
it needs to be?

Take care,
Heather

On 4/21/2014 12:37 PM, Dustin Lang wrote:
> Hi Heather,
>
> Some recent compilers have gotten fussy about the argument ordering when 
> linking: libraries have to appear *after* the code that uses them, so 
> "-lm" must go at the very end.  The ancient version of the astrometry.net 
> code used in the LSST stack doesn't have those fixes to its Makefiles, 
> though I'm surprised there isn't a fix/patch/workaround in the LSST build 
> scripts.  Others will have to chime in on that.
>
> Apologies for the trouble (that's my code),
> --dustin
>
>
> On Mon, 21 Apr 2014, Heather Kelly wrote:
>
>> Hi,
>> I'm trying to install DMstack on an Ubuntu 11.1 lab machine at BNL:
>> Distributor ID: Ubuntu
>> Description:    Ubuntu 11.10
>> Release:        11.10
>> Codename:       oneiric
>>
>> I've tried both Winter2014 and Summer2013 and I end up with the same
>> compilation error, which to me.. seems really odd.. I clearly see "-lm"
>> in the build command, so it's odd that "roundf" is seen to be missing..
>> and now I'm going to click "send" and something silly will occur to me,
>> but any suggestions would be very welcome:
>>
>> cc  -std=gnu89  -std=gnu89 -g -Wall -ffinite-math-only
>> -fno-signaling-nans -pthread -mtune=generic -O3 -fomit-frame-pointer
>> -DNDEBUG -fPIC -Winline -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64
>> -D_GNU_SOURCE -pthread -I/usr/include/cairo -I/usr/include/glib-2.0
>> -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/p
>> ixman-1 -I/usr/include/freetype2 -I/usr/include/libpng12   
>> -I../gsl-an   -I../qfits-an/include -I../libkd -I.   -c -o
>> an-fitstopnm.o an-fitstopnm.c
>> cc  -g -Wall -ffinite-math-only -fno-signaling-nans -pthread
>> -mtune=generic -O3 -fomit-frame-pointer -DNDEBUG -fPIC -Winline -lm 
>> an-fitstopnm.o libanutils.a ..
>> /qfits-an/lib/libqfits.a   -o an-fitstopnman-fitstopnm.o: In function
>> `main':
>> /opt/lsst/DMstack/Winter2014/EupsBuildDir/Linux64/astrometry_net-0.30+3/astrometry_net-0.30+3/util/an-fitstopnm.c:348:
>> undefined reference to `roundf'
>> /opt/lsst/DMstack/Winter2014/EupsBuildDir/Linux64/astrometry_net-0.30+3/astrometry_net-0.30+3/util/an-fitstopnm.c:339:
>> undefined reference to `roundf'
>> collect2: ld returned 1 exit status
>> make[1]: *** [an-fitstopnm] Error 1
>> make[1]: Leaving directory
>> `/opt/lsst/DMstack/Winter2014/EupsBuildDir/Linux64/astrometry_net-0.30+3/astrometry_net-0.30+3/util'
>> make: *** [all] Error 2
>>
>> Take care,
>> heather
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