1:BUILD_BY[name] student1 1:BUILD_ENVIRONMENT[operating system 32 vs 64] Ubuntu12.04 64 1:DEPENDENCIES[list of dependencies with where to get them] 1:END_DEPENDENCIES 1:NOTES[notes on attempted build] failed to build pre-req There might possibly be a bug in the tool as I saw a post in a gnu forum about the same topic. It was referring to an older version (1.12) and I used 1.16. The post had no replies on how to resolve or whether it will be resolved in later versions. ldfrexp.c: In function 'gsl_frexp': ldfrexp.c:56:1: internal compiler error: Aborted Please submit a full bug report, with preprocessed source if appropriate. See for instructions. Preprocessed source stored into /tmp/cc0Ps4js.out file, please attach this to your bugreport. make[2]: *** [ldfrexp.lo] Error 1 make[2]: Leaving directory `/home/student1/Downloads/gsl-1.16/sys' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/student1/Downloads/gsl-1.16' make: *** [all] Error 2 1:END_NOTES VERIFY:ANALYSIS_BY[name] VERIFY:STATUS[unknown,needed,not_needed,started,finished] unknown VERIFY:COMMENT[string]