Updated libtool to 2.4.2

sys-devel/libtool/patches/2.4.2/remove_help2man_dependency.patch

@@ -0,0 +1,21 @@
+diff --git a/Makefile.am b/Makefile.am
+index 268b399..a8236c1 100644
+--- a/Makefile.am
++++ b/Makefile.am
+@@ -328,16 +328,6 @@ $(srcdir)/doc/notes.txt: $(srcdir)/doc/notes.texi
+ 	  $(MAKEINFO) --no-headers $(MAKEINFOFLAGS) -o notes.txt notes.texi
+ 
+ dist_man1_MANS		= $(srcdir)/doc/libtool.1 $(srcdir)/doc/libtoolize.1
+-MAINTAINERCLEANFILES	+= $(dist_man1_MANS)
+-update_mans = \
+-  PATH=".$(PATH_SEPARATOR)$$PATH"; export PATH; \
+-  $(HELP2MAN) --output=$@
+-$(srcdir)/doc/libtool.1: $(srcdir)/$(auxdir)/ltmain.sh
+-	$(update_mans) --help-option=--help-all libtool
+-$(srcdir)/doc/libtoolize.1: $(srcdir)/libtoolize.in
+-	$(update_mans) libtoolize
+-
+-
+ ## ------------- ##
+ ## Installation. ##
+ ## ------------- ##