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-rw-r--r--Makefile6
1 files changed, 5 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 629ab35047..fea237bc80 100644
--- a/Makefile
+++ b/Makefile
@@ -153,7 +153,11 @@ all::
#
# Define ASCIIDOC8 if you want to format documentation with AsciiDoc 8
#
-# Define DOCBOOK_XSL_172 if you want to format man pages with DocBook XSL v1.72.
+# Define DOCBOOK_XSL_172 if you want to format man pages with DocBook XSL v1.72
+# (not v1.73 or v1.71).
+#
+# Define ASCIIDOC_NO_ROFF if your DocBook XSL escapes raw roff directives
+# (versions 1.72 and later and 1.68.1 and earlier).
#
# Define NO_PERL_MAKEMAKER if you cannot use Makefiles generated by perl's
# MakeMaker (e.g. using ActiveState under Cygwin).