asciidoc: only enable automake magic if feature enabled

refs #3230

diff --git a/docs/Makefile.am b/docs/Makefile.am
index 01e30ec92616dd9f42db31335bafa3f857f0c6a2..0de2cfb184372fdca1d92ef7d8c34cc3de6ea67c 100644 (file)
--- a/docs/Makefile.am
+++ b/docs/Makefile.am
@@ -15,8 +15,10 @@ man1_MANS = \
 
 .SUFFIXES = .html .txt
 
+if AD_COND_doc
 .txt.html:
-       asciidoc -a toc -a numbered $<
+       $(AD_ENV) $(AD_ASCIIDOC) -a toc -a numbered $<
+endif AD_COND_doc
 
 icinga2.8: $(top_srcdir)/icinga-app/icinga2
        -$(HELP2MAN) --name='The Icinga 2 networking monitoring daemon.' --section=8 --no-info --output=$@ $(top_srcdir)/icinga-app/icinga2