x86 stable、gcc version 4.1.1 (Gentoo 4.1.1) で、 CFLAGS="-pipe -Wall -O3 -fomit-frame-pointer -fprofile-generate -march=pentium4" なのですが、emerge (sys-libs/ncurses-5.5-r3) で
(略) i686-pc-linux-gnu-gcc ../obj_s/tic.o ../obj_s/dump_entry.o -L../lib -lncurses \ -I../progs -I/var/tmp/portage/ncurses-5.5-r3/work/ncurses-5.5/progs -DHAVE_CONFIG_H \ -I/var/tmp/portage/ncurses-5.5-r3/work/ncurses-5.5/progs/../include -I. -I../include \ -D_GNU_SOURCE -DNDEBUG -pipe -Wall -O3 -fomit-frame-pointer -fprofile-generate \ -march=pentium4 -fPIC -o tic /usr/lib/gcc/i686-pc-linux-gnu/4.1.1/../../../../i686-pc-linux-gnu/bin/ld: \ tic: hidden symbol `__gcov_merge_single' in /usr/lib/gcc/i686-pc-linux-gnu/4.1.1/libgcov.a(_gcov_merge_single.o) is \ referenced by DSO /usr/lib/gcc/i686-pc-linux-gnu/4.1.1/../../../../i686-pc-linux-gnu/bin/ld: \ final link failed: Nonrepresentable section on output collect2: ld returned 1 exit status make[1]: *** [tic] Error 1 make[1]: *** Waiting for unfinished jobs.... make[1]: Leaving directory `/var/tmp/portage/ncurses-5.5-r3/work/narrowc/progs' make: *** [all] Error 2
!!! ERROR: sys-libs/ncurses-5.5-r3 failed. Call stack: ebuild.sh, line 1546: Called dyn_compile ebuild.sh, line 937: Called src_compile ncurses-5.5-r3.ebuild, line 50: Called do_compile ncurses-5.5-r3.ebuild, line 93: Called die # 一部、行を分割
と躓いてしまいます。 CFLAGS にはそこまで特殊な flag は指定していないつもりなのですが、-O3 というのは そんなに buggy なものなのでしょうか？
