docs: drop asciidoc7compatible flag

diff --git a/Makefile b/Makefile
index 96ebcf9830326a61313cea792f807c6d770bbf0b..55943a9982639dccc4dcf392656b96b35cf9faf0 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -203,8 +203,6 @@ all::
 # Define NO_ST_BLOCKS_IN_STRUCT_STAT if your platform does not have st_blocks
 # field that counts the on-disk footprint in 512-byte blocks.
 #
-# Define ASCIIDOC7 if you want to format documentation with AsciiDoc 7
-#
 # Define DOCBOOK_XSL_172 if you want to format man pages with DocBook XSL v1.72
 # (not v1.73 or v1.71).
 #
@@ -1834,10 +1832,6 @@ ifndef V
 endif
 endif
 
-ifdef ASCIIDOC7
-       export ASCIIDOC7
-endif
-
 ifdef NO_INSTALL_HARDLINKS
        export NO_INSTALL_HARDLINKS
 endif