Merge topic 'disable-exec-info' into release-3.21

aa4c30182b Add option to explicitly avoid using execinfo for backtraces

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !6386

CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 44b433a..9944ea4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -361,6 +361,9 @@
   if(CMake_NO_CXX_STANDARD)
     set(KWSYS_CXX_STANDARD "")
   endif()
+  if(CMake_NO_SELF_BACKTRACE)
+    set(KWSYS_NO_EXECINFO 1)
+  endif()
   if(WIN32)
     # FIXME: Teach KWSys to hard-code these checks on Windows.
     set(KWSYS_C_HAS_CLOCK_GETTIME_MONOTONIC_COMPILED 0)