Specify dependencies libs explicitly.

Such setup is better for cross compilation. Also changed Makefile to
properly make the project with these libraries.

deps/libmnl/doxygen/.gitignore

@@ -0,0 +1,4 @@
+doxyfile.stamp
+doxygen.cfg
+html/
+man/

deps/libmnl/doxygen/Makefile.am

@@ -0,0 +1,25 @@
+if HAVE_DOXYGEN
+doc_srcs = $(shell find $(top_srcdir)/src -name '*.c')
+
+doxyfile.stamp: $(doc_srcs) Makefile.am
+	rm -rf html man
+	doxygen doxygen.cfg >/dev/null
+	$(SHELL) $(top_srcdir)/doxygen/finalize_manpages.sh
+	touch doxyfile.stamp
+
+CLEANFILES = doxyfile.stamp
+
+all-local: doxyfile.stamp
+clean-local:
+	rm -rf $(top_srcdir)/doxygen/man $(top_srcdir)/doxygen/html
+install-data-local:
+	mkdir -p $(DESTDIR)$(mandir)/man3
+	cp --no-dereference --preserve=links,mode,timestamps man/man3/*.3\
+	  $(DESTDIR)$(mandir)/man3/
+
+# make distcheck needs uninstall-local
+uninstall-local:
+	rm -r $(DESTDIR)$(mandir) man html doxyfile.stamp
+endif
+
+EXTRA_DIST = finalize_manpages.sh

deps/libmnl/doxygen/doxygen.cfg.in

@@ -0,0 +1,23 @@
+# Difference with default Doxyfile 1.8.20
+PROJECT_NAME           = @PACKAGE@
+PROJECT_NUMBER         = @VERSION@
+OUTPUT_DIRECTORY       = .
+ABBREVIATE_BRIEF       =
+FULL_PATH_NAMES        = NO
+TAB_SIZE               = 8
+OPTIMIZE_OUTPUT_FOR_C  = YES
+INPUT                  = @top_srcdir@
+FILE_PATTERNS          = */src/*.c
+RECURSIVE              = YES
+EXCLUDE_SYMBOLS        = EXPORT_SYMBOL mnl_nlmsg_batch mnl_socket
+EXAMPLE_PATTERNS       =
+INPUT_FILTER           = "sed 's/EXPORT_SYMBOL//g'"
+SOURCE_BROWSER         = YES
+ALPHABETICAL_INDEX     = NO
+SEARCHENGINE           = NO
+GENERATE_LATEX         = NO
+LATEX_CMD_NAME         = latex
+GENERATE_MAN           = YES
+MAN_LINKS              = YES
+HAVE_DOT               = @HAVE_DOT@
+DOT_TRANSPARENT        = YES

deps/libmnl/doxygen/finalize_manpages.sh

@@ -0,0 +1,40 @@
+#
+# We need to use bash for its associative array facility
+#
+[ "$BASH" ] || exec bash $0
+#
+# (`bash -p` prevents import of functions from the environment).
+#
+set -p
+
+declare -A renamed_page
+
+main(){ set -e; cd man/man3; rm -f _*
+  count_real_pages
+  rename_real_pages
+  make_symlinks
+}
+
+count_real_pages(){ page_count=0
+  for i in $(ls -S)
+  do head -n1 $i | grep -E -q '^\.so' && break
+    page_count=$(($page_count + 1))
+  done
+  first_link=$(($page_count + 1))
+}
+
+rename_real_pages(){ for i in $(ls -S | head -n$page_count)
+  do for j in $(ls -S | tail -n+$first_link)
+    do grep -E -q $i$ $j && break
+    done
+    mv -f $i $j
+    renamed_page[$i]=$j
+  done
+}
+
+make_symlinks(){ for j in $(ls -S | tail -n+$first_link)
+  do ln -sf ${renamed_page[$(cat $j | cut -f2 -d/)]} $j
+  done
+}
+
+main