Fix stdlib manpages build

Author: stedolan

ocamldoc/Makefile.docfiles

@@ -41,10 +41,9 @@ DOC_COMPILERLIBS_INCLUDES = $(addprefix -I $(SRC)/, $(DOC_COMPILERLIBS_DIRS))
 
 DOC_ALL_INCLUDES = $(DOC_STDLIB_INCLUDES) $(DOC_COMPILERLIBS_INCLUDES)
 
-STDLIB_MOD_WP = $(filter-out stdlib__pervasives, $(STDLIB_MODULES))
-STDLIB_MLI0 = $(STDLIB_MOD_WP:%=$(SRC)/stdlib/%.mli)
+STDLIB_MOD_WP = $(filter-out pervasives, $(STDLIB_MODS))
 STDLIB_MLIS=\
-  $(STDLIB_MLI0:$(SRC)/stdlib/stdlib__%=$(SRC)/stdlib/%) \
+  $(STDLIB_MOD_WP:%=$(SRC)/stdlib/%.mli) \
   $(STR_MLIS) \
   $(UNIX_MLIS) \
   $(THREAD_MLIS) \