Hallo, building gcc-4.9.0-RC-20140411 without any options worked well on my Ubuntu-12.04 System, whereas building with make -j 4 BOOT_CFLAGS='-flto' bootstrap gave linking errors like: /tmp/ccezqqPM.ltrans0.ltrans.o: In function `upstrdup(char const*)': ccezqqPM.ltrans0.o:(.text+0xe0): undefined reference to `xstrdup' ccezqqPM.ltrans0.o:(.text+0x104): undefined reference to `_sch_toupper' /tmp/ccezqqPM.ltrans0.ltrans.o: In function `s_hook_hash(void const*)': ccezqqPM.ltrans0.o:(.text+0x145): undefined reference to `htab_hash_string' /tmp/ccezqqPM.ltrans0.ltrans.o: In function `emit_documentation(char const*)': ccezqqPM.ltrans0.o:(.text+0x1a5): undefined reference to `htab_create' ccezqqPM.ltrans0.o:(.text+0x1bd): undefined reference to `fopen_unlocked' ccezqqPM.ltrans0.o:(.text+0x22f): undefined reference to `xmalloc' ccezqqPM.ltrans0.o:(.text+0x26c): undefined reference to `htab_find_slot' ccezqqPM.ltrans0.o:(.text+0x398): undefined reference to `htab_find' ccezqqPM.ltrans0.o:(.text+0x42a): undefined reference to `fopen_unlocked' ccezqqPM.ltrans0.o:(.text+0x524): undefined reference to `htab_find' ccezqqPM.ltrans0.o:(.text+0xae3): undefined reference to `htab_find' collect2: Fehler: ld gab 1 als Ende-Status zurück make[3]: *** [build/genhooks] Fehler 1 etc... and building with make -j 4 BUILD_CONFIG='bootstrap-lto' results in a stage 2/3 comparision error. Is there a way to fix this problems? Thank you Henning
