Public bug reported: $ cat > test.c <<EOF #include <time.h> int main() { struct timespec ts; clock_gettime(CLOCK_MONOTONIC, &ts); return 0; } EOF
$ gcc -o test -lrt test.c test.c:(.text+0x15): undefined reference to `clock_gettime' Adding -Wl,--no-as-needed before -lrt makes it link. Using gold instead of BFD ld also makes it link. There is no reason why -Wl,--as-needed -lrt (--as-needed being the ubuntu default) should drop -lrt when one of its symbol is used, especially when dropping it makes the linkage fail... ** Affects: binutils (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/995787 Title: ld discards -lrt despite clock_gettime being used, and wrongfully fails to link To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/binutils/+bug/995787/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs