Rework libbacktrace locating.

CMakeLists.txt

@@ -389,6 +389,24 @@ endif()
 include_directories(${CMAKE_SOURCE_DIR})
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake/Modules")
 
+# Find libbacktrace first (Unix/Linux only)
+if(NOT WIN32)
+    find_path(BACKTRACE_INCLUDE_DIR
+        NAMES backtrace.h
+        PATHS
+            /usr/local/include
+            /usr/include
+    )
+
+    if(BACKTRACE_INCLUDE_DIR)
+        set(BACKTRACE_FOUND TRUE)
+        # Most systems just need -lbacktrace
+        set(BACKTRACE_LIBRARIES backtrace)
+        message(STATUS "Found backtrace.h at ${BACKTRACE_INCLUDE_DIR}")
+    endif()
+endif()
+
+# Then set up boost modules
 set(Boost_INCLUDE_DIR ${CMAKE_SOURCE_DIR}/submodules/boost/libs/config/include)
 set(BOOST_MODULE_LIBS
     algorithm
@@ -484,18 +502,22 @@ foreach(lib IN LISTS BOOST_MODULE_LIBS)
   add_subdirectory(submodules/boost/libs/${lib} EXCLUDE_FROM_ALL)
 endforeach()
 include_directories(${BOOST_LIBRARY_INCLUDES})
-add_library(Boost::stacktrace ALIAS boost_stacktrace_basic)
-add_definitions(-DBOOST_STACKTRACE_GNU_SOURCE_NOT_REQUIRED)
 
+# Configure stacktrace with appropriate backend
 if(WIN32)
-  # Windows-specific configuration
-  target_link_libraries(boost_stacktrace_basic PRIVATE dbghelp)
+    message(STATUS "Windows platform - Using WinDbg stacktrace")
+    add_definitions(-DBOOST_STACKTRACE_USE_WINDBG)
+    add_library(Boost::stacktrace ALIAS boost_stacktrace_windbg)
+    target_link_libraries(boost_stacktrace_windbg PRIVATE dbghelp)
+elseif(BACKTRACE_FOUND)
+    message(STATUS "Found libbacktrace - enabling Boost stacktrace backtrace support")
+    add_definitions(-DBOOST_STACKTRACE_USE_BACKTRACE)
+    add_library(Boost::stacktrace ALIAS boost_stacktrace_backtrace)
+    target_link_libraries(boost_stacktrace_backtrace PRIVATE ${BACKTRACE_LIBRARIES})
 else()
-  # Unix-like systems (Linux, macOS)
-  target_link_libraries(boost_stacktrace_basic PRIVATE dl)
-
-  # Add -rdynamic linker flag for better symbol resolution
-  target_link_options(boost_stacktrace_basic PRIVATE -rdynamic)
+    message(STATUS "Unix platform without libbacktrace - Using basic backtrace")
+    add_definitions(-DBOOST_STACKTRACE_GNU_SOURCE_NOT_REQUIRED)
+    add_library(Boost::stacktrace ALIAS boost_stacktrace_basic)
 endif()
 
 # Workaround for missing reference errata in the boost property_tree module