diff -up hddtemp-0.3-beta15/src/backtrace.c.ucontext hddtemp-0.3-beta15/src/backtrace.c

--- hddtemp-0.3-beta15/src/backtrace.c.ucontext	2018-03-15 20:58:48.253308241 +0100

+++ hddtemp-0.3-beta15/src/backtrace.c	2018-03-15 21:14:42.288130136 +0100

@@ -42,7 +42,7 @@

 #define MAX_BTSIZE 64

 void backtrace_handler(int n, siginfo_t *ist, void *extra) {

-  static struct ucontext *puc;

+  static ucontext_t *puc;

   static void *btinfo[MAX_BTSIZE];

   static char **messages = NULL;

   static size_t btsize = 0;

@@ -58,7 +58,7 @@ void backtrace_handler(int n, siginfo_t

 #define SIC_CASE(c) case c: strerr = #c

-  puc = (struct ucontext *)extra;

+  puc = (ucontext_t *)extra;

   switch(n) {

   case SIGSEGV:

     switch(ist->si_code) {