From 36e0adfcc1cea7532bb7f1c5a843ab3a662ff154 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Mayer?= <jmayer@loplof.de>
Date: Thu, 10 Oct 2013 13:37:15 +0000
Subject: [PATCH] Generate setpath.bat to set the paths necessary for running
 the generated binaries inside the build dir.

svn path=/trunk/; revision=52492
---
 CMakeLists.txt                    |  3 +++
 cmake/modules/FindWSWinLibs.cmake | 31 ++++++++++++++++++++++++++++++-
 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3d13c4233c..f4978a3309 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -475,6 +475,9 @@ endforeach()
 # Provide Windows system lib names
 include( UseWinLibs )
 
+# Create file to set paths to run binaries from build dir
+WSExtendPath( "${WS_ALL_LIBS}" "${CMAKE_BINARY_DIR}/setpath.bat" )
+
 #packaging
 include(CPackConfig.txt)
 
diff --git a/cmake/modules/FindWSWinLibs.cmake b/cmake/modules/FindWSWinLibs.cmake
index f98f58c1a8..208d626ea0 100644
--- a/cmake/modules/FindWSWinLibs.cmake
+++ b/cmake/modules/FindWSWinLibs.cmake
@@ -22,5 +22,34 @@ function(FindWSWinLibs _WS_LIB_SEARCH_PATH _LIB_HINT_VAR)
       endif()
     endforeach()
   endif()
-endfunction(FindWSWinLibs)
+endfunction()
 
+function(WSExtendPath _LIB_PATH_LIST _PATH_FILE)
+  if (WIN32)
+    #message( STATUS "All libs: ${_LIB_PATH_LIST}." )
+    foreach( THIS_LIB_PATH ${_LIB_PATH_LIST} )
+      get_filename_component( LIB_PATH ${THIS_LIB_PATH} PATH )
+      #message( STATUS "Raw path ${THIS_LIB_PATH} processed to ${LIB_PATH}." )
+      set( WS_LOCAL_LIB_PATHS "${WS_LOCAL_LIB_PATHS}" ${LIB_PATH} )
+    endforeach()
+    list( REMOVE_DUPLICATES WS_LOCAL_LIB_PATHS )
+    # All generated libs go here, so start our libsearch in this place
+    set( WS_LOCAL_LIB_PATHS "${CMAKE_BINARY_DIR}/lib" "${WS_LOCAL_LIB_PATHS}" )
+    file( TO_NATIVE_PATH "${WS_LOCAL_LIB_PATHS}" WS_NATIVE_LIB_PATHS )
+    if ( EXISTS ${_PATH_FILE} )
+      file( READ ${_PATH_FILE} OLD_FILE_CONTENT )
+    else()
+      set( OLD_FILE_CONTENT " " )
+    endif()
+    #message( STATUS "Searching for ${WS_NATIVE_LIB_PATHS}\nin ${OLD_FILE_CONTENT}" )
+    string( FIND "${OLD_FILE_CONTENT}" "${WS_NATIVE_LIB_PATHS}" PATH_FOUND_AT )
+    #message( STATUS "Location of substr: ${PATH_FOUND_AT}" )
+    if( PATH_FOUND_AT GREATER -1 )
+      message( "\n${_PATH_FILE} is up to date.\n" )
+    else()
+      #message( STATUS "Native paths: ${WS_NATIVE_LIB_PATHS}" )
+      file( WRITE ${_PATH_FILE} "set PATH=%PATH%;${WS_NATIVE_LIB_PATHS}" )
+      message( "\n${_PATH_FILE} is new/updated, please run it.\n" )
+    endif()
+  endif()
+endfunction()