docs: manual: Fix srcdir!=buildir build.

murraycu · murraycu · commit f066feeeeab4 · 2020-01-11T15:17:08.000+01:00
diff --git a/docs/Makefile.am b/docs/Makefile.am
@@ -21,7 +21,7 @@ doc_input = $(addprefix $(top_srcdir)/libxml++/,$(h_sources_public))
 # Sets dist_noinst_DATA, DISTCLEANFILES and MAINTAINERCLEANFILES
 include $(top_srcdir)/build/doc-reference.am
 
-manual/libxml++.xml: manual/libxml++_without_code.xml manual/insert_example_code.pl
+manual/libxml++.xml: ${top_srcdir}/docs/manual/libxml++_without_code.xml ${top_srcdir}/docs/manual/insert_example_code.pl
 	$(AM_V_at)$(MKDIR_P) manual
 	$(AM_V_GEN)$(PERL) -- ${top_srcdir}/docs/manual/insert_example_code.pl ${top_srcdir}/examples $< >$@
 
