[PATCH] Tweak the CMake package rules for Windows

[Hans Wennborg]

Hi rnk,

This tweaks the CMake rules for building an installation package. It tweaks the version string, sets the license file (the Windows installer will show this), adds an LLVM logo and makes the wizard show a "do you want to add this to the system path" dialog.

http://llvm-reviews.chandlerc.com/D1414

Files:
  CMakeLists.txt
  nsis_logo.bmp

Index: CMakeLists.txt
===================================================================
--- CMakeLists.txt
+++ CMakeLists.txt
@@ -493,7 +493,16 @@
 set(CPACK_PACKAGE_VENDOR "LLVM")
 set(CPACK_PACKAGE_VERSION_MAJOR ${LLVM_VERSION_MAJOR})
 set(CPACK_PACKAGE_VERSION_MINOR ${LLVM_VERSION_MINOR})
-add_version_info_from_vcs(CPACK_PACKAGE_VERSION_PATCH)
+if( LLVM_APPEND_VC_REV )
+  add_version_info_from_vcs(CPACK_PACKAGE_VERSION_PATCH)
+else()
+  set(CPACK_PACKAGE_VERSION_PATCH "svn")
+endif()
+set(CPACK_RESOURCE_FILE_LICENSE "${LLVM_MAIN_SRC_DIR}/LICENSE.TXT")
+if(WIN32 AND NOT UNIX)
+  set(CPACK_PACKAGE_ICON "${LLVM_MAIN_SRC_DIR}\\\\nsis_logo.bmp")
+  set(CPACK_NSIS_MODIFY_PATH "ON")
+endif()
 include(CPack)
 
 # Workaround for MSVS10 to avoid the Dialog Hell
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