From 6c420f18fdec1f3e901f1b78724e6b4e7596c168 Mon Sep 17 00:00:00 2001
From: Alan Antonuk <alan.antonuk@gmail.com>
Date: Tue, 13 Nov 2012 19:58:11 -0500
Subject: Reorder checks in CMakeLists

---
 CMakeLists.txt | 102 ++++++++++++++++++++++++++++-----------------------------
 1 file changed, 50 insertions(+), 52 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 133b35b..250ed30 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -45,9 +45,57 @@ if (CMAKE_GENERATOR MATCHES ".*(Make|Ninja).*"
   message(STATUS "CMAKE_BUILD_TYPE not specified. Creating ${CMAKE_BUILD_TYPE} build")
 endif()
 
-#find python
-find_package(PythonInterp REQUIRED)
+include(TestCInline)
+include(CheckFunctionExists)
+include(CheckLibraryExists)
+include(CMakePushCheckState)
 
+# Detect if we need to link against a socket library:
+cmake_push_check_state()
+if (WIN32)
+  # Always use WinSock2 on Windows
+  set(SOCKET_LIBRARIES ws2_32)
+else ()
+  # Is it in the default link?
+  CHECK_FUNCTION_EXISTS(getaddrinfo HAVE_GETADDRINFO)
+  if (NOT (HAVE_GETADDRINFO EQUAL 1))
+    CHECK_LIBRARY_EXISTS(socket getaddrinfo "" HAVE_GETADDRINFO2)
+    if (HAVE_GETADDRINFO2 EQUAL 1)
+      set(SOCKET_LIBRARIES socket)
+    else ()
+      CHECK_LIBRARY_EXISTS("socket;nsl" getaddrinfo "" HAVE_GETADDRINFO3)
+      if (HAVE_GETADDRINFO3 EQUAL 1)
+        set(SOCKET_LIBRARIES socket nsl)
+      else ()
+        message(FATAL_ERROR "Cannot find name resolution library (containing symbol getaddrinfo)")
+      endif ()
+    endif ()
+  endif ()
+
+  set(CMAKE_REQUIRED_LIBRARIES ${SOCKET_LIBRARIES})
+  CHECK_FUNCTION_EXISTS(socket HAVE_SOCKET)
+  if (NOT HAVE_SOCKET EQUAL 1)
+    CHECK_LIBRARY_EXISTS(socket socket "" HAVE_SOCKET2)
+    if (NOT HAVE_SOCKET2 EQUAL 1)
+      set(SOCKET_LIBRARIES socket ${SOCKET_LIBRARIES})
+    else ()
+      CHECK_LIBRARY_EXISTS("socket;nsl" socket "" HAVE_SOCKET3)
+      if (HAVE_SOCKET3 EQUAL 1)
+        set(SOCKET_LIBRARIES socket nsl ${SOCKET_LIBRARIES})
+      else ()
+        message(FATAL_ERROR "Cannot find socket library (containing symbol socket)")
+      endif ()
+    endif ()
+  endif ()
+endif ()
+cmake_pop_check_state()
+
+cmake_push_check_state()
+set(CMAKE_REQUIRED_LIBRARIES ${SOCKET_LIBRARIES})
+check_function_exists(htonll HAVE_HTONLL)
+cmake_pop_check_state()
+
+find_package(PythonInterp REQUIRED)
 #Determine Python Version:
 if(PYTHON_EXECUTABLE)
   execute_process(COMMAND "${PYTHON_EXECUTABLE}" -c
@@ -121,7 +169,6 @@ if (CHECK_PYTHON_JSON_FAILED)
   endif (CHECK_PYTHON_SIMPLEJSON_FAILED)
 endif (CHECK_PYTHON_JSON_FAILED)
 
-include(TestCInline)
 
 find_path(AMQP_CODEGEN_DIR
   amqp_codegen.py
@@ -140,55 +187,6 @@ endif()
 
 mark_as_advanced(AMQP_CODEGEN_DIR)
 
-include(CheckFunctionExists)
-include(CheckLibraryExists)
-include(CMakePushCheckState)
-
-# Detect if we need to link against a socket library:
-cmake_push_check_state()
-if (WIN32)
-  # Always use WinSock2 on Windows
-  set(SOCKET_LIBRARIES ws2_32)
-else ()
-  # Is it in the default link?
-  CHECK_FUNCTION_EXISTS(getaddrinfo HAVE_GETADDRINFO)
-  if (NOT (HAVE_GETADDRINFO EQUAL 1))
-    CHECK_LIBRARY_EXISTS(socket getaddrinfo "" HAVE_GETADDRINFO2)
-    if (HAVE_GETADDRINFO2 EQUAL 1)
-      set(SOCKET_LIBRARIES socket)
-    else ()
-      CHECK_LIBRARY_EXISTS("socket;nsl" getaddrinfo "" HAVE_GETADDRINFO3)
-      if (HAVE_GETADDRINFO3 EQUAL 1)
-        set(SOCKET_LIBRARIES socket nsl)
-      else ()
-        message(FATAL_ERROR "Cannot find name resolution library (containing symbol getaddrinfo)")
-      endif ()
-    endif ()
-  endif ()
-
-  set(CMAKE_REQUIRED_LIBRARIES ${SOCKET_LIBRARIES})
-  CHECK_FUNCTION_EXISTS(socket HAVE_SOCKET)
-  if (NOT HAVE_SOCKET EQUAL 1)
-    CHECK_LIBRARY_EXISTS(socket socket "" HAVE_SOCKET2)
-    if (NOT HAVE_SOCKET2 EQUAL 1)
-      set(SOCKET_LIBRARIES socket ${SOCKET_LIBRARIES})
-    else ()
-      CHECK_LIBRARY_EXISTS("socket;nsl" socket "" HAVE_SOCKET3)
-      if (HAVE_SOCKET3 EQUAL 1)
-        set(SOCKET_LIBRARIES socket nsl ${SOCKET_LIBRARIES})
-      else ()
-        message(FATAL_ERROR "Cannot find socket library (containing symbol socket)")
-      endif ()
-    endif ()
-  endif ()
-endif ()
-cmake_pop_check_state()
-
-cmake_push_check_state()
-set(CMAKE_REQUIRED_LIBRARIES ${SOCKET_LIBRARIES})
-check_function_exists(htonll HAVE_HTONLL)
-cmake_pop_check_state()
-
 find_package(POPT)
 find_package(XmlTo)
 
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