Removed the 2nd part since it was already patched in Slack's src

https://src.fedoraproject.org/rpms/qt5-qtwebengine/blob/rawhide/f/qtwebengine-everywhere-src-5.15.5-SIGSTKSZ.patch
--- src/3rdparty/chromium/third_party/abseil-cpp/absl/debugging/failure_signal_handler.cc.orig	2021-12-06 09:53:26.811179193 +0000
+++ src/3rdparty/chromium/third_party/abseil-cpp/absl/debugging/failure_signal_handler.cc	2021-12-06 09:53:50.634177793 +0000
@@ -135,7 +135,7 @@
 #else
   const size_t page_mask = sysconf(_SC_PAGESIZE) - 1;
 #endif
-  size_t stack_size = (std::max(SIGSTKSZ, 65536) + page_mask) & ~page_mask;
+  size_t stack_size = (std::max<size_t>(SIGSTKSZ, 65536) + page_mask) & ~page_mask;
 #if defined(ADDRESS_SANITIZER) || defined(MEMORY_SANITIZER) || \
     defined(THREAD_SANITIZER)
   // Account for sanitizer instrumentation requiring additional stack space.
