man 2 clock_gettime says: Link with -lrt (only for glibc versions before 2.17). If we do not do that, we get: post-mortem.c:61: undefined reference to `clock_gettime' syscall.o: In function `__do_syscall': syscall.c:121: undefined reference to `clock_gettime' watchdog.o: In function `is_child_making_progress': watchdog.c:317: undefined reference to `clock_gettime' So introduce (standard) LDLIBS into Makefile and add -lrt there. Signed-off-by: Jiri Slaby <jslaby@xxxxxxx> --- Makefile | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 0cdcf4be0ae0..a70c5bd958a5 100644 --- a/Makefile +++ b/Makefile @@ -37,6 +37,9 @@ CFLAGS += -Wstrict-prototypes -Wmissing-prototypes # needed for show_backtrace() to work correctly. LDFLAGS += -rdynamic +# glibc versions before 2.17 for clock_gettime +LDLIBS += -lrt + # gcc only. ifneq ($(shell $(CC) -v 2>&1 | grep -c "clang"), 1) CFLAGS += -Wlogical-op @@ -96,7 +99,7 @@ DEPDIR= .deps -include $(SRCS:%.c=$(DEPDIR)/%.d) trinity: version test $(OBJS) $(HEADERS) - $(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o trinity $(OBJS) + $(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o trinity $(OBJS) $(LDLIBS) @mkdir -p tmp df = $(DEPDIR)/$(*D)/$(*F) -- 2.6.4 -- To unsubscribe from this list: send the line "unsubscribe trinity" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
