Patch inspired by file comparison with openjdk@19.

diff -u -r openjdk-10.alt/test/hotspot/jtreg/runtime/StackGuardPages/exeinvoke.c openjdk-10/test/hotspot/jtreg/runtime/StackGuardPages/exeinvoke.c
--- openjdk-10.alt/test/hotspot/jtreg/runtime/StackGuardPages/exeinvoke.c	2023-04-05 15:03:00.070787628 +0200
+++ openjdk-10/test/hotspot/jtreg/runtime/StackGuardPages/exeinvoke.c	2023-04-05 15:29:51.379824348 +0200
@@ -67,8 +67,17 @@
   longjmp(context, 1);
 }
 
-void set_signal_handler() {
-  static char altstack[SIGSTKSZ];
+static char* altstack = NULL;
+
+ void set_signal_handler() {
+  if (altstack == NULL) {
+    // Dynamically allocated in case SIGSTKSZ is not constant
+    altstack = (char*)malloc(SIGSTKSZ);
+    if (altstack == NULL) {
+      fprintf(stderr, "Test ERROR. Unable to malloc altstack space\n");
+      exit(7);
+    }
+  }
 
   stack_t ss = {
     .ss_size = SIGSTKSZ,
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<tr><td><span title='2024-10-20 12:08:01 +0100'>2024-10-20</span></td><td><a href='/guix/commit/gnu/services/upnp.scm?id=0aa52bcb287ffdf23e71e4a8a3484056e8f65804'>services: readymedia: Add trailing newline after media_dir lines.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/upnp.scm (readymedia-configuration-&gt;config-file): Add trailing
newline after media_dir lines.

Change-Id: Ib2e584f22526f1969098b843c4be6ee386ed809c
Signed-off-by: Arun Isaac &lt;arunisaac@systemreboot.net&gt;
</span></span></td><td>Fabio Natali</td></tr>
<tr><td><span title='2024-10-18 20:56:02 +0100'>2024-10-18</span></td><td><a href='/guix/commit/gnu/services/upnp.scm?id=8c6d24d388bcd72b595b5293c7afc6e06bde941b'>gnu: services: Add readymedia service.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/upnp.scm, gnu/tests/upnp.scm: New files.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add them.
* doc/guix.texi (Miscellaneous Services): Document the service.

Change-Id: I6a3c9db9e7504df308038343ed48e4409a323581
Signed-off-by: Arun Isaac &lt;arunisaac@systemreboot.net&gt;
</span></span></td><td>Fabio Natali</td></tr>