VWR-10579: Fix NDOF.cmake to do the right thing on standalone.

The old one just assumed that libndof is installed,
even on standalone.

This patch looks for it on standalone, unless configured
with -DNDOF:BOOL=OFF, and when not found prints an error
message (including telling about -DNDOF:BOOL=OFF).

2 files changed, 65 insertions, 8 deletions

diff --git a/indra/cmake/FindNDOF.cmake b/indra/cmake/FindNDOF.cmake
new file mode 100644
index 0000000000..6dcf590a53
--- /dev/null
+++ b/indra/cmake/FindNDOF.cmake
@@ -0,0 +1,39 @@
+# -*- cmake -*-
+
+# - Find NDOF
+# Find the NDOF includes and library
+# This module defines
+#  NDOF_INCLUDE_DIR, where to find ndofdev_external.h, etc.
+#  NDOF_LIBRARY, the library needed to use NDOF.
+#  NDOF_FOUND, If false, do not try to use NDOF.
+
+find_path(NDOF_INCLUDE_DIR ndofdev_external.h
+  PATH_SUFFIXES ndofdev
+  )
+
+set(NDOF_NAMES ${NDOF_NAMES} ndofdev libndofdev)
+find_library(NDOF_LIBRARY
+  NAMES ${NDOF_NAMES}
+  )
+
+if (NDOF_LIBRARY AND NDOF_INCLUDE_DIR)
+  set(NDOF_FOUND "YES")
+else (NDOF_LIBRARY AND NDOF_INCLUDE_DIR)
+  set(NDOF_FOUND "NO")
+endif (NDOF_LIBRARY AND NDOF_INCLUDE_DIR)
+
+
+if (NDOF_FOUND)
+  if (NOT NDOF_FIND_QUIETLY)
+    message(STATUS "Found NDOF: Library in '${NDOF_LIBRARY}' and header in '${NDOF_INCLUDE_DIR}' ")
+  endif (NOT NDOF_FIND_QUIETLY)
+else (NDOF_FOUND)
+  if (NDOF_FIND_REQUIRED)
+    message(FATAL_ERROR " * * *\nCould not find NDOF library!\nIf you don't need Space Navigator Joystick support you can skip this test by configuring with -DNDOF:BOOL=OFF\n * * *")
+  endif (NDOF_FIND_REQUIRED)
+endif (NDOF_FOUND)
+
+mark_as_advanced(
+  NDOF_LIBRARY
+  NDOF_INCLUDE_DIR
+  )
diff --git a/indra/cmake/NDOF.cmake b/indra/cmake/NDOF.cmake
index dad74e99b1..7a463d1190 100644
--- a/indra/cmake/NDOF.cmake
+++ b/indra/cmake/NDOF.cmake
@@ -1,14 +1,32 @@
 # -*- cmake -*-
 include(Prebuilt)
 
-use_prebuilt_binary(ndofdev)
+set(NDOF ON CACHE BOOL "Use NDOF space navigator joystick library.")
 
-if (WINDOWS OR DARWIN OR LINUX)
+if (NDOF)
+  if (STANDALONE)
+	set(NDOF_FIND_REQUIRED ON)
+	include(FindNDOF)
+  else (STANDALONE)
+	use_prebuilt_binary(ndofdev)
+
+	if (WINDOWS)
+	  set(NDOF_LIBRARY libndofdev)
+	elseif (DARWIN OR LINUX)
+	  set(NDOF_LIBRARY ndofdev)
+	endif (WINDOWS)
+
+	set(NDOF_INCLUDE_DIR ${ARCH_PREBUILT_DIRS}/include/ndofdev)
+	set(NDOF_FOUND 1)
+  endif (STANDALONE)
+endif (NDOF)
+
+if (NDOF_FOUND)
   add_definitions(-DLIB_NDOF=1)
-endif (WINDOWS OR DARWIN OR LINUX)
+  include_directories(${NDOF_INCLUDE_DIR})
+else (NDOF_FOUND)
+  message(STATUS "Building without N-DoF joystick support")
+  set(NDOF_INCLUDE_DIR "")
+  set(NDOF_LIBRARY "")
+endif (NDOF_FOUND)
 
-if (WINDOWS)
-  set(NDOF_LIBRARY libndofdev)
-elseif (DARWIN OR LINUX)
-  set(NDOF_LIBRARY ndofdev)
-endif (WINDOWS)