Build fixes for modern versions of binutils.

Need to explicitly list DSOs.
diff --git a/cmake/StaticBuild.cmake b/cmake/StaticBuild.cmake
index 49706bd..1ac4f6e 100644
--- a/cmake/StaticBuild.cmake
+++ b/cmake/StaticBuild.cmake
@@ -75,12 +75,12 @@
     elseif(APPLE)
       set(FLTK_LIBRARIES "${FLTK_LIBRARIES} -framework Cocoa")
     else()
-      set(FLTK_LIBRARIES "${FLTK_LIBRARIES} -lm")
+      set(FLTK_LIBRARIES "${FLTK_LIBRARIES} -lm -ldl")
     endif()
 
     if(X11_FOUND AND NOT APPLE)
       if(${CMAKE_SYSTEM_NAME} MATCHES "SunOS")
-        set(FLTK_LIBRARIES "${FLTK_LIBRARIES} ${X11_Xcursor_LIB} ${X11_Xfixes_LIB} -Wl,-Bstatic -lXft -Wl,-Bdynamic -lfontconfig -lXext -R/usr/sfw/lib")
+        set(FLTK_LIBRARIES "${FLTK_LIBRARIES} ${X11_Xcursor_LIB} ${X11_Xfixes_LIB} -Wl,-Bstatic -lXft -Wl,-Bdynamic -lfontconfig -lXrender -lXext -R/usr/sfw/lib -L=/usr/sfw/lib -lfreetype -lsocket -lnsl")
       else()
         set(FLTK_LIBRARIES "${FLTK_LIBRARIES} -Wl,-Bstatic -lXcursor -lXfixes -lXft -lfontconfig -lexpat -lfreetype -lbz2 -lXrender -lXext -lXinerama -Wl,-Bdynamic")
       endif()