Checking if your kit is complete...
Looks good
Writing Makefile for Math::Libm
cp Libm.pm blib/lib/Math/Libm.pm
AutoSplitting blib/lib/Math/Libm.pm (blib/lib/auto/Math/Libm)
/home/cpanrun/tmp/5.10.0/bin/perl /home/cpanrun/build/5.10.0/lib/ExtUtils/xsubpp  -typemap /home/cpanrun/build/5.10.0/lib/ExtUtils/typemap  Libm.xs > Libm.xsc && mv Libm.xsc Libm.c
gcc -c   -D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DPRIVLIB_LAST_IN_INC -fno-strict-aliasing -pipe -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm -O2   -DVERSION=\"1.00\" -DXS_VERSION=\"1.00\" -fPIC "-I/home/cpanrun/build/5.10.0/lib/CORE"  -D_REENTRANT Libm.c
Running Mkbootstrap for Math::Libm ()
chmod 644 Libm.bs
rm -f blib/arch/auto/Math/Libm/Libm.so
gcc  -shared -O2 Libm.o  -o blib/arch/auto/Math/Libm/Libm.so 	\
   -lm  	\
  
chmod 755 blib/arch/auto/Math/Libm/Libm.so
cp Libm.bs blib/arch/auto/Math/Libm/Libm.bs
chmod 644 blib/arch/auto/Math/Libm/Libm.bs
Manifying blib/man3/Math::Libm.3
PERL_DL_NONLAZY=1 /home/cpanrun/tmp/5.10.0/bin/perl "-Iblib/lib" "-Iblib/arch" test.pl
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Files found in blib/arch: installing files in blib/lib into architecture dependent library tree
Installing /home/cpanrun/build/5.10.0/site/lib/auto/Math/Libm/Libm.bs
Installing /home/cpanrun/build/5.10.0/site/lib/auto/Math/Libm/Libm.so
Installing /home/cpanrun/build/5.10.0/html/site/lib/Math/Libm.html
Installing /home/cpanrun/build/5.10.0/site/lib/Math/Libm.pm
Installing /home/cpanrun/build/5.10.0/site/lib/auto/Math/Libm/autosplit.ix
Installing /home/cpanrun/build/5.10.0/site/man/man3/Math::Libm.3
Appending installation info to /home/cpanrun/build/5.10.0/lib/perllocal.pod