Merge pull request #94 from DanySpin97/execinfo

Link with libexecinfo if needed, for backtrace

Author: sahib

CMakeLists.txt

@@ -93,6 +93,30 @@ PKG_CHECK_MODULES(GLIBPKG glib-2.0>=2.10 gthread-2.0 REQUIRED)
 PKG_CHECK_MODULES(SQLITE3 sqlite3 REQUIRED)
 INCLUDE_DIRECTORIES(${GLIBPKG_INCLUDE_DIRS})
 
+
+# --------------------------
+# Check for backtrace
+# --------------------------
+
+INCLUDE(CheckIncludeFile)
+CHECK_INCLUDE_FILE("execinfo.h" HAVE_EXECINFO)
+IF(NOT HAVE_EXECINFO)
+  MESSAGE(FATAL_ERROR "execinfo.h could not be found on the system")
+ENDIF(NOT HAVE_EXECINFO)
+
+INCLUDE(CheckSymbolExists)
+CHECK_SYMBOL_EXISTS("backtrace" "execinfo.h" HAVE_BACKTRACE)
+IF(NOT HAVE_BACKTRACE)
+  SET(CMAKE_REQUIRED_FLAGS "-lexecinfo")
+  CHECK_SYMBOL_EXISTS("backtrace" "execinfo.h" HAVE_LIBEXECINFO)
+  IF(HAVE_LIBEXECINFO)
+    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -lexecinfo")
+  ELSE(HAVE_LIBEXECINFO)
+    MESSAGE(FATAL_ERROR "Could not link to libexecinfo")
+  ENDIF(HAVE_LIBEXECINFO)
+ENDIF(NOT HAVE_BACKTRACE)
+
+
 # --------------------------
 # set directories
 # --------------------------