tgkill is never used in the test and it might conflict with newer
glibc which might define tgkill themselves (just like gettid):
https://sourceware.org/bugzilla/show_bug.cgi?id=6399
Signed-off-by: Mark Wielaard <mark@klomp.org>
+2019-03-04 Mark Wielaard <mark@klomp.org>
+
+ * backtrace.c (tgkill): Remove define.
+
2019-01-24 Mark Wielaard <mark@klomp.org>
* Makefile.am (system_elf_libelf_test_CPPFLAGS): Guard by
#include <asm/unistd.h>
#include <unistd.h>
-#define tgkill(pid, tid, sig) syscall (__NR_tgkill, (pid), (tid), (sig))
static void
report_pid (Dwfl *dwfl, pid_t pid)