From ed46a24f582f22f2e1f4e621d119acddc8d398f3 Mon Sep 17 00:00:00 2001
From: Enno Rehling <enno.rehling@gmail.com>
Date: Sun, 11 Mar 2018 16:52:07 +0100
Subject: [PATCH] re-enable backtraces on linux.

---
 CMakeLists.txt     | 4 ++++
 src/CMakeLists.txt | 4 ++++
 src/main.c         | 2 +-
 3 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b14e2cf1f..19e49c9c6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -13,9 +13,13 @@ include(MSVC)
 set (HAVE_STRDUP 0)
 set (HAVE_STRLCAT 0)
 set (HAVE_LIBBSD 0)
+set (HAVE_SIGNAL_H 0)
+set (HAVE_EXECINFO_H 0)
 else (MSVC)
 
 INCLUDE (CheckIncludeFile)
+CHECK_INCLUDE_FILE(signal.h HAVE_SIGNAL_H)
+CHECK_INCLUDE_FILE(execinfo.h HAVE_EXECINFO_H)
 CHECK_INCLUDE_FILE(bsd/string.h HAVE_LIBBSD)
 
 INCLUDE (CheckFunctionExists)
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 653e036bd..bdf0465d2 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -261,6 +261,10 @@ add_test(server test_eressea)
 
 install(TARGETS eressea DESTINATION "bin")
 
+if (HAVE_EXECINFO_H AND HAVE_SIGNAL_H)
+  add_definitions(-DHAVE_BACKTRACE)
+endif ()
+
 if (HAVE_LIBBSD)
   add_definitions(-DHAVE_LIBBSD)
 endif (HAVE_LIBBSD)
diff --git a/src/main.c b/src/main.c
index 489d0d868..b2fb23a96 100644
--- a/src/main.c
+++ b/src/main.c
@@ -257,7 +257,7 @@ static int parse_args(int argc, char **argv)
     return 0;
 }
 
-#if defined(HAVE_SIGACTION) && defined(HAVE_EXECINFO)
+#if defined(HAVE_BACKTRACE)
 #include <execinfo.h>
 #include <signal.h>