diff -pruN ccache-4.0.orig/doc/CMakeLists.txt ccache-4.0/doc/CMakeLists.txt
--- ccache-4.0.orig/doc/CMakeLists.txt	2020-10-28 22:26:27.770955558 +1100
+++ ccache-4.0/doc/CMakeLists.txt	2020-10-28 22:29:16.092274569 +1100
@@ -58,7 +58,11 @@ else()
       COMMAND a2x --doctype manpage --format manpage MANUAL.xml
       MAIN_DEPENDENCY MANUAL.xml
     )
-    add_custom_target(doc-man-page DEPENDS ccache.1)
+    add_custom_target(doc-man-page ALL DEPENDS ccache.1)
+    install(
+	    FILES "${CMAKE_CURRENT_BINARY_DIR}/ccache.1"
+	    DESTINATION ${CMAKE_INSTALL_MANDIR}/man1
+	    )
     set(doc_files "${doc_files}" ccache.1)
   endif()
 
diff -pruN ccache-4.0.orig/doc/MANUAL.adoc ccache-4.0/doc/MANUAL.adoc
--- ccache-4.0.orig/doc/MANUAL.adoc	2020-10-28 22:26:27.770955558 +1100
+++ ccache-4.0/doc/MANUAL.adoc	2020-10-28 22:30:10.304959158 +1100
@@ -8,7 +8,7 @@ CCACHE(1)
 Name
 ----
 
-Ccache - a fast C/C++ compiler cache
+ccache - a fast C/C++ compiler cache
 
 
 Synopsis