From 640ff6b51c249b44c382eb92c03dafbfb482bc91 Mon Sep 17 00:00:00 2001
From: Julien Louis <ptitlouis@sysif.net>
Date: Sat, 1 Nov 2008 23:03:56 +0100
Subject: [PATCH] Backtrace feature is shipped by an external library on
 FreeBSD (and maybe others) Link against that library if installed

---
 src/core/CMakeLists.txt       | 9 ++++++++-
 src/gui/curses/CMakeLists.txt | 6 ++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 5ba54edf1..fe6d9f2fd 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -37,7 +37,14 @@ wee-util.c wee-util.h)
 INCLUDE(CheckSymbolExists)
 CHECK_INCLUDE_FILES("sys/file.h" HAVE_SYS_FILE_H)
 CHECK_SYMBOL_EXISTS(flock "sys/file.h" HAVE_FLOCK)
-CHECK_SYMBOL_EXISTS(backtrace "execinfo.h" HAVE_BACKTRACE)
+
+IF(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
+  FIND_LIBRARY(EXECINFO_LIB_PATH execinfo /usr/local/lib)
+  SET(CMAKE_REQUIRED_LIBRARIES "${EXECINFO_LIB_PATH}")
+  CHECK_FUNCTION_EXISTS(backtrace HAVE_BACKTRACE)
+ELSE(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
+  CHECK_SYMBOL_EXISTS(backtrace "execinfo.h" HAVE_BACKTRACE)
+ENDIF(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
 
 IF(GNUTLS_FOUND)
   INCLUDE_DIRECTORIES(${GNUTLS_INCLUDE_PATH})
diff --git a/src/gui/curses/CMakeLists.txt b/src/gui/curses/CMakeLists.txt
index 1b7a779bc..d6be04071 100644
--- a/src/gui/curses/CMakeLists.txt
+++ b/src/gui/curses/CMakeLists.txt
@@ -42,6 +42,12 @@ IF(${CMAKE_SYSTEM_NAME} MATCHES "OpenBSD")
   LIST(APPEND EXTRA_LIBS "utf8")
 ENDIF(${CMAKE_SYSTEM_NAME} MATCHES "OpenBSD")
 
+IF(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
+  IF(HAVE_BACKTRACE) 
+    LIST(APPEND EXTRA_LIBS "execinfo")
+  ENDIF(HAVE_BACKTRACE) 
+ENDIF(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
+
 ADD_EXECUTABLE(${EXECUTABLE} ${WEECHAT_CURSES_SRC})
 
 INCLUDE_DIRECTORIES(.. ../../core ../../plugins)