Merge pull request ceph#55528 from tchaikov/cmake-boost-debug

cmake: build boost debug variant when CMAKE_BUILD_TYPE is Debug

Reviewed-by: Casey Bodley <[email protected]>

Author: tchaikov

cmake/modules/BuildBoost.cmake

@@ -47,7 +47,11 @@ endmacro()
 
 function(do_build_boost root_dir version)
   cmake_parse_arguments(Boost_BUILD "" "" COMPONENTS ${ARGN})
-  set(boost_features "variant=release")
+  if(CMAKE_BUILD_TYPE STREQUAL Debug)
+    set(boost_features "variant=debug")
+  else()
+    set(boost_features "variant=release")
+  endif()
   if(Boost_USE_MULTITHREADED)
     list(APPEND boost_features "threading=multi")
   else()