backtrace: Allow to build without libbacktrace.

[apitrace] / CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4566db59ad487b920dc62d92b1cd9313b0c17681..81e5cdcd8f8ada8c8145aa0a18ab48539ba86f54 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -269,6 +269,7 @@ if (CMAKE_EXECUTABLE_FORMAT STREQUAL "ELF")
     add_subdirectory (thirdparty/libbacktrace)
     include_directories (${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/libbacktrace)
     set (LIBBACKTRACE_LIBRARIES dl backtrace)
+    add_definitions (-DHAVE_BACKTRACE=1)
 endif ()
 
 # Always use bundled QJSon.