Added local FindFLTK.cmake to avoid problems with FLTK no being found by standard

CMake FindFLTK.cmake.

CMakeModules/FindFLTK.cmake

@@ -0,0 +1,60 @@
+# Locate gdal
+# This module defines
+# FLTK_LIBRARY
+# FLTK_FOUND, if false, do not try to link to gdal 
+# FLTK_INCLUDE_DIR, where to find the headers
+#
+# $FLTK_DIR is an environment variable that would
+# correspond to the ./configure --prefix=$FLTK_DIR
+#
+# Created by Robert Osfield. 
+
+FIND_PATH(FLTK_INCLUDE_DIR Fl/Fl.H Fl/Fl.h
+    $ENV{FLTK_DIR}/include
+    $ENV{FLTK_DIR}
+    $ENV{OSGDIR}/include
+    $ENV{OSGDIR}
+    $ENV{OSG_ROOT}/include
+    ~/Library/Frameworks
+    /Library/Frameworks
+    /usr/local/include
+    /usr/include
+    /sw/include # Fink
+    /opt/local/include # DarwinPorts
+    /opt/csw/include # Blastwave
+    /opt/include
+    [HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Session\ Manager\\Environment;OSG_ROOT]/include
+    /usr/freeware/include
+)
+
+MACRO(FIND_FLTK_LIBRARY MYLIBRARY MYLIBRARYNAME)
+
+    FIND_LIBRARY(${MYLIBRARY}
+        NAMES ${MYLIBRARYNAME}
+        PATHS
+        $ENV{FLTK_DIR}/lib
+        $ENV{FLTK_DIR}
+        $ENV{OSGDIR}/lib
+        $ENV{OSGDIR}
+        $ENV{OSG_ROOT}/lib
+        ~/Library/Frameworks
+        /Library/Frameworks
+        /usr/local/lib
+        /usr/lib
+        /sw/lib
+        /opt/local/lib
+        /opt/csw/lib
+        /opt/lib
+        [HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Session\ Manager\\Environment;OSG_ROOT]/lib
+        /usr/freeware/lib64
+    )
+
+ENDMACRO(FIND_FLTK_LIBRARY LIBRARY LIBRARYNAME)
+
+FIND_FLTK_LIBRARY(FLTK_LIBRARY fltk)
+FIND_FLTK_LIBRARY(FLTK_GL_LIBRARY fltk_gl)
+
+SET(FLTK_FOUND "NO")
+IF(FLTK_LIBRARY AND FLTK_INCLUDE_DIR)
+    SET(FLTK_FOUND "YES")
+ENDIF(FLTK_LIBRARY AND FLTK_INCLUDE_DIR)

examples/osgviewerFLTK/CMakeLists.txt

@@ -1,6 +1,6 @@
 SET(TARGET_SRC osgviewerFLTK.cpp )
 
-SET(TARGET_EXTERNAL_LIBRARIES ${FLTK_LIBRARIES} )
+SET(TARGET_EXTERNAL_LIBRARIES ${FLTK_LIBRARY} ${FLTK_GL_LIBRARY})
 
 INCLUDE_DIRECTORIES(${FLTK_INCLUDE_DIR} )