I just tried to compile package gsl-1.7-2 from Suse Linux with a recent GNU C compiler version 4.2 snapshot 20060121.
The compiler snapshot said /home/dcb/gnu/42-20060121/results/bin/gcc -g -O3 -Wall -fmessage-length=0 -DHAVE_CONFIG_H -I. -I. -I.. -I.. -O2 -g -fmessage-length=0 -D_FORTIFY_SOURCE=2 -O3 -finline-limit=720 --param max-inline-insns-auto=160 -ffast-math -funroll-loops -fno-strict-aliasing -momit-leaf-frame-pointer -funit-at-a-time -ftree-vectorize -c bessel_Kn.c -fPIC -DPIC -o bessel_Kn.o bessel_Kn.c: In function sel_Kn.c:103: internal compiler error: in vect_recog_dot_prod_pattern, at tree-vect-patterns.c:246 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. It seems that the flags -O2 -ffast-math -ftree-vectorize are required. Preprocessed source code attached. -- Summary: ice in vect_recog_dot_prod_pattern Product: gcc Version: 4.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: dcb314 at hotmail dot com GCC host triplet: x86_64-suse-linux http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25911
