Fixed link to libSDF (need librt) and lex generation.

external/external_build.cmake

@@ -334,6 +334,11 @@ IF(SDF_SUPPORT)
   )
   SET(LIBSDF_INCLUDE_PATH ${LIBSDF_PATH}/include)
   SET(LIBSDF_LIBRARY ${LIBSDF_PATH}/Objfiles/${LIBSDF_ARCH}/libsw.a)
+
+  find_library(RT_LIBRARY rt)
+  IF (RT_LIBRARY)
+    SET(LIBSDF_LIBRARY ${LIBSDF_LIBRARY} ${RT_LIBRARY})
+  ENDIF (RT_LIBRARY)
 ENDIF(SDF_SUPPORT)
 
 include_directories(${CMAKE_BINARY_DIR}/src 

external/libsdf/libSDF/GNUmakefile

@@ -21,7 +21,7 @@ include $(treedir)/Make-common/Make.generic
 
 %.c : %.l
 #  commands to execute (built-in):
-	-($(LEX.L) $< > y.lex.c; $(RM) $@; mv y.lex.c $@)
+	-($(LEX) $(LEX.L) $<; mv -f lex.yy.c $@)
 
 # Makedepends can't pick these up...
 $(objdir)/SDF-parse$(objsuf): SDF-private.h SDF-lex.c SDF-parse.c