add missing -lm to suitesparse link line
Created by: nschloe
Fixes link errors like
/trilinos_trilinosss.dir/AMD/Source/trilinos_amd_2.c.o: In function `trilinos_amd_2':
/<<PKGBUILDDIR>>/packages/common/auxiliarySoftware/SuiteSparse/src/AMD/Source/trilinos_amd_2.c:603: undefined reference to `sqrt'
(See here for full details.)
Errors of this kind happen once in a while and are easily detected by adding -Wl,--no-undefined
to the link commands, e.g., by adding
-DCMAKE_SHARED_LINKER_FLAGS:STRING="-Wl,--no-undefined"
to the configure line. @jwillenbring Could this be done for the nightly testing?