Added build system support for a man page.

auto/help

@@ -18,6 +18,7 @@ cat << END
                        default: "$NXT_SBINDIR"
   --libdir=DIRECTORY   set library directory name, default: "$NXT_LIBDIR"
   --incdir=DIRECTORY   set includes directory name, default: "$NXT_INCDIR"
+  --mandir=DIRECTORY   set man pages directory name, default: "$NXT_MANDIR"
   --modules=DIRECTORY  set modules directory name, default: "$NXT_MODULES"
   --state=DIRECTORY    set state directory name, default: "$NXT_STATE"
   --tmp=DIRECTORY      set tmp directory name, default: "$NXT_TMP"

auto/make

@@ -22,10 +22,11 @@ NXT_EXEC_LINK =		$NXT_EXEC_LINK $NXT_LD_OPT
 NXT_SHARED_LOCAL_LINK =	$NXT_SHARED_LOCAL_LINK $NXT_LD_OPT
 NXT_MODULE_LINK =	$NXT_MODULE_LINK
 
-all: $NXT_DAEMON
+all: $NXT_DAEMON manpage
 
-.PHONY: $NXT_DAEMON
+.PHONY: $NXT_DAEMON manpage
 $NXT_DAEMON: $NXT_BUILD_DIR/$NXT_DAEMON
+manpage: $NXT_BUILD_DIR/unitd.8
 
 END
 
@@ -305,6 +306,19 @@ $NXT_BUILD_DIR/$NXT_DAEMON:	$NXT_BUILD_DIR/$NXT_LIB_STATIC \\
 END
 
 
+# unitd man page
+
+cat << END >> $NXT_MAKEFILE
+
+$NXT_BUILD_DIR/unitd.8: docs/man/unitd.8.in $NXT_BUILD_DIR/nxt_auto_config.h
+	sed -e "s|%%ERROR_LOG_PATH%%|$NXT_LOG|" \\
+		-e "s|%%PID_PATH%%|$NXT_PID|" \\
+		-e "s|%%SOCKET_PATH%%|$NXT_CONTROL|" \\
+		< docs/man/unitd.8.in > \$@
+
+END
+
+
 # unit object files.
 
 for nxt_src in $NXT_MAKE_SRCS
@@ -334,9 +348,9 @@ done
 
 cat << END >> $NXT_MAKEFILE
 
-.PHONY: install ${NXT_DAEMON}-install install-check
+.PHONY: install ${NXT_DAEMON}-install install-check manpage-install
 
-install: ${NXT_DAEMON}-install
+install: ${NXT_DAEMON}-install manpage-install
 
 install-check:
 	@test -n "\$(DESTDIR)$NXT_PREFIX" \\
@@ -352,15 +366,22 @@ ${NXT_DAEMON}-install: $NXT_DAEMON install-check
 	install -p $NXT_BUILD_DIR/$NXT_DAEMON \$(DESTDIR)$NXT_SBINDIR/
 	install -d \$(DESTDIR)$NXT_STATE
 
+manpage-install: manpage install-check
+	install -d \$(DESTDIR)$NXT_MANDIR/man8
+	install -p $NXT_BUILD_DIR/unitd.8 \$(DESTDIR)$NXT_MANDIR/man8/
 
-.PHONY: uninstall ${NXT_DAEMON}-uninstall
+.PHONY: uninstall ${NXT_DAEMON}-uninstall manpage-uninstall
 
-uninstall: ${NXT_DAEMON}-uninstall
+uninstall: ${NXT_DAEMON}-uninstall manpage-uninstall
 
 ${NXT_DAEMON}-uninstall:
 	rm -f \$(DESTDIR)$NXT_SBINDIR/$NXT_DAEMON
 	@rmdir -p \$(DESTDIR)$NXT_SBINDIR 2>/dev/null || true
 
+manpage-uninstall:
+	rm -f \$(DESTDIR)$NXT_MANDIR/man8/unitd.8
+	@rmdir -p \$(DESTDIR)$NXT_MANDIR/man8 2>/dev/null || true
+
 END
 
 cat << END >> $NXT_MAKEFILE

auto/options

@@ -59,6 +59,7 @@ do
         --sbindir=*)                     NXT_SBINDIR="$value"                ;;
         --libdir=*)                      NXT_LIBDIR="$value"                 ;;
         --incdir=*)                      NXT_INCDIR="$value"                 ;;
+        --mandir=*)                      NXT_MANDIR="$value"                 ;;
         --modules=*)                     NXT_MODULES="$value"                ;;
         --state=*)                       NXT_STATE="$value"                  ;;
         --tmp=*)                         NXT_TMP="$value"                    ;;
@@ -144,6 +145,11 @@ case "$NXT_INCDIR" in
      *)  NXT_INCDIR="$NXT_PREFIX$NXT_INCDIR"  ;;
 esac
 
+case "$NXT_MANDIR" in
+    /*)  ;;
+     *)  NXT_MANDIR="$NXT_PREFIX$NXT_MANDIR"  ;;
+esac
+
 case "$NXT_MODULES" in
     /*)  ;;
      *)  NXT_MODULES="$NXT_PREFIX$NXT_MODULES"  ;;

auto/summary

@@ -11,6 +11,7 @@ Unit configuration summary:
   sbin directory: ............ "$NXT_SBINDIR"
   lib directory: ............. "$NXT_LIBDIR"
   include directory: ......... "$NXT_INCDIR"
+  man pages directory: ....... "$NXT_MANDIR"
   modules directory: ......... "$NXT_MODULES"
   state directory: ........... "$NXT_STATE"
   tmp directory: ............. "$NXT_TMP"

configure

@@ -35,6 +35,7 @@ NXT_BINDIR="bin"
 NXT_SBINDIR="sbin"
 NXT_LIBDIR="lib"
 NXT_INCDIR="include"
+NXT_MANDIR="share/man"
 NXT_MODULES="modules"
 NXT_STATE="state"
 NXT_TMP="tmp"

docs/changes.xml

@@ -9,6 +9,12 @@
          date="" time=""
          packager="Andrei Belov <defan@nginx.com>">
 
+<change type="feature">
+<para>
+"--mandir" ./configure option to specify the directory for man page installation.
+</para>
+</change>
+
 <change type="bugfix">
 <para>
 the router process could crash on premature TLS connection close; the bug had