From 9c87aeb1fc2c4e2837d9b8c51347be5532ab42e2 Mon Sep 17 00:00:00 2001
From: ThorstenB <brehmt@gmail.com>
Date: Sat, 18 Aug 2012 13:40:57 +0200
Subject: [PATCH] Add cmake Linux distro detection.

---
 CMakeLists.txt                  |  3 +++
 CMakeModules/DetectDistro.cmake | 13 +++++++++++++
 2 files changed, 16 insertions(+)
 create mode 100644 CMakeModules/DetectDistro.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index d1180065c..54409e9fd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -26,6 +26,9 @@ if(InSourceBuild)
     message(WARNING  "  mkdir ../fgbuild && cd ../fgbuild && cmake ${CMAKE_SOURCE_DIR}")
 endif(InSourceBuild)
 
+# System detection/default settings
+include( DetectDistro )
+
 set(CMAKE_DEBUG_POSTFIX          "d" CACHE STRING "add a postfix, usually d on windows")
 set(CMAKE_RELEASE_POSTFIX        ""  CACHE STRING "add a postfix, usually empty on windows")
 set(CMAKE_RELWITHDEBINFO_POSTFIX ""  CACHE STRING "add a postfix, usually empty on windows")
diff --git a/CMakeModules/DetectDistro.cmake b/CMakeModules/DetectDistro.cmake
new file mode 100644
index 000000000..99e82a0e3
--- /dev/null
+++ b/CMakeModules/DetectDistro.cmake
@@ -0,0 +1,13 @@
+# DetectDistro.cmake -- Detect Linux distribution
+
+message(STATUS "System is: ${CMAKE_SYSTEM_NAME}")
+
+if(CMAKE_SYSTEM_NAME MATCHES "Linux")
+    # Detect Linux distribution (if possible)
+    execute_process(COMMAND "/usr/bin/lsb-release" "-is"
+                    TIMEOUT 4
+                    OUTPUT_VARIABLE LINUX_DISTRO
+                    ERROR_QUIET
+                    OUTPUT_STRIP_TRAILING_WHITESPACE)
+    message(STATUS "Linux distro is: ${LINUX_DISTRO}")
+endif()