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-rw-r--r--Misc/NEWS.d/next/Library/2019-04-26-17-14-20.bpo-36734.p2MaiN.rst2
-rw-r--r--Modules/faulthandler.c3
2 files changed, 4 insertions, 1 deletions
diff --git a/Misc/NEWS.d/next/Library/2019-04-26-17-14-20.bpo-36734.p2MaiN.rst b/Misc/NEWS.d/next/Library/2019-04-26-17-14-20.bpo-36734.p2MaiN.rst
new file mode 100644
index 0000000000..09341990a6
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2019-04-26-17-14-20.bpo-36734.p2MaiN.rst
@@ -0,0 +1,2 @@
+Fix compilation of ``faulthandler.c`` on HP-UX. Initialize ``stack_t
+current_stack`` to zero using ``memset()``.
diff --git a/Modules/faulthandler.c b/Modules/faulthandler.c
index 30fe18695f..d45b8660ee 100644
--- a/Modules/faulthandler.c
+++ b/Modules/faulthandler.c
@@ -1370,7 +1370,8 @@ void _PyFaulthandler_Fini(void)
#ifdef HAVE_SIGALTSTACK
if (stack.ss_sp != NULL) {
/* Fetch the current alt stack */
- stack_t current_stack = {};
+ stack_t current_stack;
+ memset(&current_stack, 0, sizeof(current_stack));
if (sigaltstack(NULL, &current_stack) == 0) {
if (current_stack.ss_sp == stack.ss_sp) {
/* The current alt stack is the one that we installed.