Build fails on debian about ct_icp HOT 1 OPEN

diff --git a/src/SlamCore/utils.cxx b/src/SlamCore/utils.cxx
index 293414b..f21bb10 100644
--- a/src/SlamCore/utils.cxx
+++ b/src/SlamCore/utils.cxx
@@ -115,14 +115,15 @@ void _posix_signal_handler(int sig, siginfo_t *siginfo, void *context) {
     _Exit(1);
 }

-static uint8_t alternate_stack[SIGSTKSZ];
+// static uint8_t alternate_stack[SIGSTKSZ];

 void _setup_signal_handler() {
     {
         stack_t ss = {};
         /* malloc is usually used here, I'm not 100% sure my static allocation
            is valid but it seems to work just fine. */
-        ss.ss_sp = (void *) alternate_stack;
+        // ss.ss_sp = (void *) alternate_stack;
+        ss.ss_sp = malloc(SIGSTKSZ);
         ss.ss_size = SIGSTKSZ;
         ss.ss_flags = 0;
         if (sigaltstack(&ss, NULL) != 0) { err(1, "sigaltstack"); }