--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -1,54 +1,37 @@
-find_program(ASCIIDOCTOR_EXE asciidoctor)
-mark_as_advanced(ASCIIDOCTOR_EXE) # Don't show in CMake UIs
+find_program(ASCIIDOC_EXE asciidoc)
+mark_as_advanced(ASCIIDOC_EXE) # Don't show in CMake UIs
 
-if(NOT ASCIIDOCTOR_EXE)
+if(NOT ASCIIDOC_EXE)
   message(WARNING "Could not find asciidoctor; documentation will not be generated")
 else()
-  function(generate_doc backend adoc_file output_file)
-    get_filename_component(base_name "${adoc_file}" NAME_WE)
-    add_custom_command(
-      OUTPUT "${output_file}"
-      COMMAND
-        ${ASCIIDOCTOR_EXE}
-          -o "${output_file}"
-          -a revnumber="${CCACHE_VERSION}"
-          -a icons=font
-          -a toc=left
-          -a sectanchors
-          -a stylesheet="${CMAKE_CURRENT_SOURCE_DIR}/ccache-doc.css"
-          -b "${backend}"
-          "${CMAKE_SOURCE_DIR}/${adoc_file}"
-      MAIN_DEPENDENCY "${CMAKE_SOURCE_DIR}/${adoc_file}"
-      DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/ccache-doc.css"
-    )
-    set(doc_files "${doc_files}" "${output_file}" PARENT_SCOPE)
-  endfunction()
-
-  #
-  # HTML documentation
-  #
-  generate_doc(html    LICENSE.adoc     LICENSE.html)
-  generate_doc(html    doc/AUTHORS.adoc AUTHORS.html)
-  generate_doc(html    doc/MANUAL.adoc  MANUAL.html)
-  generate_doc(html    doc/NEWS.adoc    NEWS.html)
-  add_custom_target(doc-html DEPENDS "${doc_files}")
-
   #
   # Man page
   #
-  generate_doc(manpage doc/MANUAL.adoc ccache.1.tmp)
+  find_program(A2X_EXE a2x)
+  mark_as_advanced(A2X_EXE) # Don't show in CMake UIs
+  # MANUAL.adoc -> MANUAL.xml -> man page
+  add_custom_command(
+    OUTPUT MANUAL.xml
+    COMMAND
+      ${ASCIIDOC_EXE}
+        -o -
+        -a revnumber=${CCACHE_VERSION}
+        -d manpage
+        -b docbook "${CMAKE_SOURCE_DIR}/doc/MANUAL.adoc"
+      | perl -pe 's!<literal>\(.*?\)</literal>!<emphasis role="strong">\\1</emphasis>!g'
+          >MANUAL.xml
+    MAIN_DEPENDENCY "${CMAKE_SOURCE_DIR}/doc/MANUAL.adoc"
+  )
   add_custom_command(
     OUTPUT ccache.1
-    # Convert monospace to bold since that's typically rendered better when
-    # viewing the man page.
-    COMMAND perl -pe "'s!\\\\f\\(CR(.*?)\\\\fP!\\\\fB\\1\\\\fP!g'" ccache.1.tmp >ccache.1
-    MAIN_DEPENDENCY ccache.1.tmp
+    COMMAND ${A2X_EXE} --doctype manpage --format manpage MANUAL.xml
+    MAIN_DEPENDENCY MANUAL.xml
   )
+  add_custom_target(doc-man-page DEPENDS ccache.1)
   install(
     FILES "${CMAKE_CURRENT_BINARY_DIR}/ccache.1"
     DESTINATION "${CMAKE_INSTALL_MANDIR}/man1"
   )
-  add_custom_target(doc-man-page DEPENDS ccache.1)
 
-  add_custom_target(doc ALL DEPENDS doc-html doc-man-page)
+  add_custom_target(doc ALL DEPENDS ccache.1)
 endif()