Bug 991920

While you are fixing that, would you also please add "-lpthread -ldl" to the link line for libsingular?  That will fix this:

$ ldd -r /usr/lib64/libsingular.so
undefined symbol: sem_unlink	(/usr/lib64/libsingular.so)
undefined symbol: sem_open	(/usr/lib64/libsingular.so)
undefined symbol: sem_wait	(/usr/lib64/libsingular.so)
undefined symbol: dlopen	(/usr/lib64/libsingular.so)
undefined symbol: sem_getvalue	(/usr/lib64/libsingular.so)
undefined symbol: sem_post	(/usr/lib64/libsingular.so)
undefined symbol: sem_trywait	(/usr/lib64/libsingular.so)
undefined symbol: dlclose	(/usr/lib64/libsingular.so)
undefined symbol: dlerror	(/usr/lib64/libsingular.so)
undefined symbol: dlsym	(/usr/lib64/libsingular.so)

Those undefined symbols are causing me trouble with a polymake update.  Thanks!

I just submitted a Singular rebuild with an updated
Singular-link.patch file that should address the
underlink issue. The submit is also done to check
if texlive wasn't also already corrected in arm.

After more time than should really have taken I tried to build it
under qemu, but failed, so delaying it again... interesting parts
of the build log:

[...]
creating cache ./config.cache
checking uname for singular... unknown
configure: warning: Unknown architecture: Check singuname.sh
[...]
checking for FLINT >= 2.3... not found
configure: WARNING: Unable to find FLINT (which is strongly recommended) on your machine: please use --with-flint=PATH_TO_DIR_CONTAINING_LIB_AND_INCLUDE (see also ./configure --help if you do not understand what we are talking about)
[...]
armv7hl-redhat-linux-gnueabi-g++ -c cf_factory.cc -Wall -fno-implicit-templates -I. -I.. -I. -I/usr -I/usr/include/factory -DHAVE_CONFIG_H -I/usr/include/factory  -O2 -g -march=armv7-a -mfloat-abi=hard -mfpu=neon -fPIC  -o cf_factory.o
armv7hl-redhat-linux-gnueabi-g++ -c cf_gcd.cc -Wall -fno-implicit-templates -I. -I.. -I. -I/usr -I/usr/include/factory -DHAVE_CONFIG_H -I/usr/include/factory  -O2 -g -march=armv7-a -mfloat-abi=hard -mfpu=neon -fPIC  -o cf_gcd.o
armv7hl-redhat-linux-gnueabi-g++ -c cf_gcd_smallp.cc -Wall -fno-implicit-templates -I. -I.. -I. -I/usr -I/usr/include/factory -DHAVE_CONFIG_H -I/usr/include/factory  -O2 -g -march=armv7-a -mfloat-abi=hard -mfpu=neon -fPIC  -o cf_gcd_smallp.o
cf_gcd_smallp.cc: In function 'CanonicalForm GCD_GF(const CanonicalForm&, const CanonicalForm&, CanonicalForm&, CanonicalForm&, CFList&, bool&)':
cf_gcd_smallp.cc:1141:55: internal compiler error: Segmentation fault
         expon= (int) floor((log ((double)((1<<16) - 1)))/(log((double)p)*kk));
                                                       ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://bugzilla.redhat.com/bugzilla> for instructions.
[ 4574.936262] LVM: Logical Volume autoactivation enabled.
[ 4575.140620] LVM: Activation generator successfully completed.
The bug is not reproducible, so it is likely a hardware or OS problem.
make: *** [cf_gcd_smallp.o] Error 1

So, I did not reach the part where it fails in the FBTFS report...
Looks like I need to give more than 1G of memory for qemu.

I just did want to try to reproduce the problem to be able to make
a proper forward bug report, as the problem happens when generating
the documentation, and is either perl or texlive related.

This bug appears to have been reported against 'rawhide' during the Fedora 20 development cycle.
Changing version to '20'.

More information and reason for this action is here:
https://fedoraproject.org/wiki/BugZappers/HouseKeeping/Fedora20

Singular-3.1.5-9.fc20 has been submitted as an update for Fedora 20.
https://admin.fedoraproject.org/updates/Singular-3.1.5-9.fc20

Singular-3.1.5-10.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Problem has been already corrected, and rawhide now has
Singular-3.1.6.