a bunch of stuff...

Signed-off-by: Mattias Andrée <maandree@member.fsf.org>

15 files changed, 1334 insertions, 136 deletions

diff --git a/mk/README b/mk/README
index fd27fd0..e79926d 100644
--- a/mk/README
+++ b/mk/README
@@ -4,9 +4,6 @@ Please feel free to use them in your project.
 Usage:
 	Include all.mk from your makefile.
 
-	It is a good idea to include path.mk before you define
-	path variables.
-
 	Read the top of each file for details.
 
 	Define the variables:
@@ -47,3 +44,28 @@ Usage:
 	Variables that do not begin with _ are configurable
 	by the user of the package.
 
+	Do no use single character variables in your Makefile.
+
+	To suppress pre-install, post-install, pre-uninstall,
+	and post-uninstall instructions, set N=true.
+	PRE_INSTALL, POST_INSTALL, PRE_UNINSTALL, and
+	POST_UNINSTALL are supportered as specified by the
+	GNU coding standardars.
+
+	To figure out what pre-install commands to run in your package, run:
+		 make -n a=% install | sed -e 's/\\$//' -e 's/^ *//' | sed -n '/^% /s/^..//p'
+
+	To figure out what post-install commands to run in your package, run:
+		 make -n z=% uninstall | sed -e 's/\\$//' -e 's/^ *//' | sed -n '/^% /s/^..//p'
+
+	To figure out what pre-uninstall commands to run in your package, run:
+		 make -n a=% uninstall | sed -e 's/\\$//' -e 's/^ *//' | sed -n '/^% /s/^..//p'
+
+	To figure out what post-uninstall commands to run in your package, run:
+		 make -n z=% uninstall | sed -e 's/\\$//' -e 's/^ *//' | sed -n '/^% /s/^..//p'
+
+	To suppress verbatim which commands Make runs,
+	set Q=@. (Excluding the period.)
+
+Developers should use DEBUG=1 when running make, when possible.
+
diff --git a/mk/all.mk b/mk/all.mk
index 7b00995..f6cad42 100644
--- a/mk/all.mk
+++ b/mk/all.mk
@@ -8,20 +8,25 @@
 
 #=== This file includes all the other files in appropriate order. ===#
 
+
 ifndef Q
 A = \e[35m
 Z = 
 endif
 
-include mk/path.mk
-include mk/empty.mk
-include mk/tools.mk
-include mk/copy.mk
-include mk/lang-c.mk
-include mk/texinfo.mk
-include mk/man.mk
-include mk/i18n.mk
-include mk/clean.mk
-include mk/dist.mk
-include mk/tags.mk
+include $(v)mk/path.mk
+include .config.mk
+include $(v)mk/path.mk
+include $(v)mk/lowerpath.mk
+include $(v)mk/empty.mk
+include $(v)mk/tools.mk
+include $(v)mk/copy.mk
+include $(v)mk/lang-c.mk
+include $(v)mk/texinfo.mk
+include $(v)mk/man.mk
+include $(v)mk/i18n.mk
+include $(v)mk/clean.mk
+include $(v)mk/dist.mk
+include $(v)mk/tags.mk
+include $(v)mk/prologue.mk
 
diff --git a/mk/clean.mk b/mk/clean.mk
index 4d6d1a4..d0a97c4 100644
--- a/mk/clean.mk
+++ b/mk/clean.mk
@@ -11,15 +11,17 @@
 
 # Delete all files are normally created during a build.
 .PHONY: clean
-clean:
-	@$(PRINTF_INFO) '\e[00;01;31mCLEANING\e[34m\e[00m\n'
-	-$(Q)$(RM) -r bin obj $(PKGNAME)-*.tar* $(PKGNAME)-*.checksums*
+clean: clean-dist
+	@$(PRINTF_INFO) '\e[00;01;31mCLEANING BUILT FILES\e[34m\e[00m\n'
+	-$(Q)$(RM) -r -- bin aux
 	@$(ECHO)
 
-# Delete all files that are created during configuration.
-# Note, this, for some reason, should not imply `make clean`.
+# Delete all files that are created during configuration or building.
 .PHONY: distclean
-distclean:
+distclean: clean
+	@$(PRINTF_INFO) '\e[00;01;31mCLEANING CONFIGURATIONS\e[34m\e[00m\n'
+	-$(Q)$(RM) -- .config.mk config.status Makefile
+	@$(ECHO)
 
 # Like `make clean` but do not remove massive binaries
 # that are seldom recompiled.
@@ -34,3 +36,10 @@ maintainer-clean: clean distclean
 	@$(ECHO) 'deletes files that may need special tools to rebuild.'
 	@$(ECHO)
 
+# Delete all files generated by `make dist`
+.PHONY: clean-dist
+clean-dist:
+	@$(PRINTF_INFO) '\e[00;01;31mCLEANING RELEASES\e[34m\e[00m\n'
+	-$(Q)$(RM) -r -- $(_PROJECT)-*.tar* $(_PROJECT)-*.checksums* $(_PROJECT)-*
+	@$(ECHO)
+
diff --git a/mk/configure b/mk/configure
new file mode 100644
index 0000000..61f73e6
--- /dev/null
+++ b/mk/configure
@@ -0,0 +1,719 @@
+# -*- shell-script -*-
+
+# Copyright (C) 2015  Mattias Andrée <maandree@member.fsf.org>
+# 
+# Copying and distribution of this file, with or without modification,
+# are permitted in any medium without royalty provided the copyright
+# notice and this notice are preserved.  This file is offered as-is,
+# without any warranty.
+
+
+# Run './configure --help' for usage information.
+
+
+#   FOR DEVELOPERS USING THIS SCRIPT:
+# This file is used by include this file, via the . builtin,
+# in your ./configure. Before doing so, you must declare
+#   PKGNAME=the_name_of_your_package
+#   MAN_SECTION_SUFFIX=default_suffix_to_append_to_man_page_section # (usually empty)
+#   MAN_SECTION=the_section_your_man_page_is_in # (do no declare if you do not use exacly one section)
+#   Define the function list_optional_features_help, see the help output.
+#   Define the function unrecognised_argument to deal with any unrecognised argument.
+
+
+
+# Store command for rebuilding Makefile to config.status.
+exec 10>config.status
+
+# Store configurations to .config.mk.
+exec 20>.config.mk
+
+
+# Parse command line.
+incomplete=
+dashed=
+f_help=
+f_gnulinux=
+f_bin_merger=
+for option; do
+    if test -n "${incomplete}"; then
+	option="${incomplete}=${option}"
+	incomplete=
+    fi
+    
+    # For --{with{,out},{en,dis}able}-*.
+    feature="${option#--*}"
+    feature="${feature#*-}"
+    feature="$(echo "${feature}" | tr qwertyuiopasdfghjklzxcvbnm- QWERTYUIOPASDFGHJKLZXCVBNM_)"
+    
+    # For directories and filename tweaks.
+    nodash=_novar
+    
+    case "${dashed}${option}" in
+# general
+	(--)
+	    dashed=yes ;;
+	(--help)
+	    f_help=yes ;;
+	(--destdir | --destdir=* | --pkgdir | --pkgdir=*)
+	    nodash=destdir ;;
+	(--srcdir | --srcdir)
+	    nodash=srcdir ;;
+
+# directory automation
+	(--gnu-linux)
+	    f_gnulinux=yes ;;
+	(--bin-merger)
+	    f_bin_merger=yes ;;
+
+# directories and filenames
+	(--prefix | --prefix=*)
+	    nodash=prefix ;;
+	(--exec-prefix | --exec-prefix=* | --exec_prefix | --exec_prefix=*)
+	    nodash=exec_prefix ;;
+	(--bindir | --bindir=*)
+	    nodash=bindir ;;
+	(--sbindir | --sbindir=*)
+	    nodash=sbindir ;;
+	(--libexecdir | --libexecdir=*)
+	    nodash=libexecdir ;;
+	(--libdir | --libdir=*)
+	    nodash=libdir ;;
+	(--includedir | --includedir=*)
+	    nodash=includedir ;;
+	(--oldincludedir | --oldincludedir=*)
+	    nodash=oldincludedir ;;
+	(--datarootdir | --datarootdir=*)
+	    nodash=datarootdir ;;
+	(--datadir | --datadir=*)
+	    nodash=datadir ;;
+	(--libdatarootdir | --libdatarootdir=*)
+	    nodash=libdatarootdir ;;
+	(--libdatadir | --libdatadir=*)
+	    nodash=libdatadir ;;
+	(--sysconfdir | --sysconfdir=*)
+	    nodash=sysconfdir ;;
+	(--sharedstatedir | --=sharedstatedir*)
+	    nodash=sharedstatedir ;;
+	(--localstatedir | --localstatedir=*)
+	    nodash=localstatedir ;;
+	(--runstatedir | --runstatedir=*)
+	    nodash=runstatedir ;;
+	(--lispdir | --lispdir=*)
+	    nodash=lispdir ;;
+	(--localedir | --localedir=*)
+	    nodash=localedir ;;
+	(--licensedir | --licensedir=*)
+	    nodash=licensedir ;;
+	(--emptydir | --emptydir=*)
+	    nodash=emptydir ;;
+	(--cachedir | --cachedir=*)
+	    nodash=cachedir ;;
+	(--spooldir | --spooldir=*)
+	    nodash=spooldir ;;
+	(--logdir | --logdir=*)
+	    nodash=logdir ;;
+	(--statedir | --statedir=*)
+	    nodash=statedir ;;
+	(--gamedir | --gamedir=*)
+	    nodash=gamedir ;;
+	(--sharedcachedir | --sharedcachedir=*)
+	    nodash=sharedcachedir ;;
+	(--sharedspooldir | --sharedspooldir=*)
+	    nodash=sharedspooldir ;;
+	(--sharedlogdir | --sharedlogdir=*)
+	    nodash=sharedlogdir ;;
+	(--sharedstatedir | --sharedstatedir=*)
+	    nodash=sharedstatedir ;;
+	(--sharedgamedir | --sharedgamedir=*)
+	    nodash=sharedgamedir ;;
+	(--tmpdir | --tmpdir=*)
+	    nodash=tmpdir ;;
+	(--localtmpdir | --localtmpdir=*)
+	    nodash=localtmpdir ;;
+	(--sharedtmpdir | --sharedtmpdir=*)
+	    nodash=sharedtmpdir ;;
+	(--lockdir | --lockdir=*)
+	    nodash=lockdir ;;
+	(--skeldir | --skeldir=*)
+	    nodash=skeldir ;;
+	(--devdir | --devdir=*)
+	    nodash=devdir ;;
+	(--sysdir | --sysdir=*)
+	    nodash=sysdir ;;
+	(--procdir | --procdir=*)
+	    nodash=procdir ;;
+	(--selfprocdir | --selfprocdir=*)
+	    nodash=selfprocdir ;;
+	(--docdir | --docdir=*)
+	    nodash=docdir ;;
+	(--infodir | --infodir=*)
+	    nodash=infodir ;;
+	(--dvidir | --dvidir=*)
+	    nodash=dvidir ;;
+	(--pdfdir | --pdfdir=*)
+	    nodash=pdfdir ;;
+	(--psdir | --psdir=*)
+	    nodash=psdir ;;
+	(--htmldir | --htmldir=*)
+	    nodash=htmldir ;;
+	(--mandir | --mandir=*)
+	    nodash=mandir ;;
+	(--man0 | --man0=*)
+	    nodash=man0 ;;
+	(--man1 | --man1=*)
+	    nodash=man1 ;;
+	(--man2 | --man2=*)
+	    nodash=man2 ;;
+	(--man3 | --man3=*)
+	    nodash=man3 ;;
+	(--man4 | --man4=*)
+	    nodash=man4 ;;
+	(--man5 | --man5=*)
+	    nodash=man5 ;;
+	(--man6 | --man6=*)
+	    nodash=man6 ;;
+	(--man7 | --man7=*)
+	    nodash=man7 ;;
+	(--man8 | --man8=*)
+	    nodash=man8 ;;
+	(--man9 | --man9=*)
+	    nodash=man9 ;;
+	(--man0ext | --man0ext=*)
+	    nodash=man0ext ;;
+	(--man1ext | --man1ext=*)
+	    nodash=man1ext ;;
+	(--man2ext | --man2ext=*)
+	    nodash=man2ext ;;
+	(--man3ext | --man3ext=*)
+	    nodash=man3ext ;;
+	(--man4ext | --man4ext=*)
+	    nodash=man4ext ;;
+	(--man5ext | --man5ext=*)
+	    nodash=man5ext ;;
+	(--man6ext | --man6ext=*)
+	    nodash=man6ext ;;
+	(--man7ext | --man7ext=*)
+	    nodash=man7ext ;;
+	(--man8ext | --man8ext=*)
+	    nodash=man8ext ;;
+	(--man9ext | --man9ext=*)
+	    nodash=man9ext ;;
+	(--manext | --manext=*)
+	    if test -n "${MAN_SECTION}"; then
+		nodash=manext
+	    else
+		printf "\e[01;31m%s: warning: ignoring: %s\e[00m\n" "${0}" "${option}" >&2
+		sleep 1
+	    fi
+	    ;;
+
+# ignored
+	# Unrecognised directories, and settings that cannot be used with internationalisation.
+	(--*dir=* | --*dir | --man?dir | --man?dir=*)
+	    printf "\e[01;31m%s: warning: ignoring: %s\e[00m\n" "${0}" "${option}" >&2
+	    sleep 1
+	    ;;
+
+# feature tweaking
+	(--with-*)
+	    feature="WITH_${feature}"
+	    echo "${feature}" = yes >&20
+	    export "${feature}"=yes
+	    ;;
+	
+	(--without-*)
+	    feature="WITHOUT_${feature}"
+	    echo "${feature}" = yes >&20
+	    export "${feature}"=yes
+	    ;;
+	
+	(--enable-*=*)
+	    param="${feature#*=}"
+	    feature="${feature%%=*}"
+	    if ! test "${param}" = "no"; then
+		feature="ENABLE_${feature}"
+	    else
+		feature="DISABLE_${feature}"
+		param=yes
+	    fi
+	    echo "${feature}" = "${param}" >&20
+	    export "${feature}"="${param}"
+	    ;;
+	
+	(--enable-*)
+	    feature="DISABLE_${feature}"
+	    echo "${feature}" = yes >&20
+	    export "${feature}"=yes
+	    ;;
+	
+	(--disable-*)
+	    feature="DISABLE_${feature}"
+	    echo "${feature}" = yes >&20
+	    export "${feature}"=yes
+	    ;;
+
+# unrecognised
+	(${dashed}--*)
+	    unrecognised_argument "${option}"
+	    ;;
+
+# variables
+	(${dashed}*=*)
+	    var="${option%%=*}"
+	    val="${option#*=}"
+	    if test -n "$(echo "${var}" | tr -d '[_a-zA-Z0-9-]')"; then
+		# Variable is not used and is potentially not
+		# formatted in a compatible way.
+		printf "\e[01;31m%s: warning: ignoring because of bad format: %s\e[00m\n" "${0}" "${option}" >&2
+		sleep 1
+	    fi
+	    echo "${var}" = "${val}" >&20
+	    ;;
+
+# unrecognised
+	(*)
+	    unrecognised_argument "${option}"
+	    ;;
+    esac
+
+    if test "${option%%=*}" = "${option}"; then
+	incomplete="${option}"
+    else
+	eval "${nodash}=${option#*=}"
+	eval "have_${nodash}=yes"
+    fi
+done
+
+
+# Print usage information. This is parsed by
+# the auto-completion script for ./configure.
+if test -n "${f_help}"; then
+    cat <<EOF
+Configure the package (${PKGNAME}) before building and installing.
+
+OPTIONS
+
+general
+  --help                  Print usage information.
+  --destdir=DIR           Output directory for staged install.
+  --srcdir=DIR            The directory for the sources being compiled.
+  VARIABLE=VALUE          Override a variable in the Makefile.
+
+directory automation
+  --gnu-linux             Use default configurations for GNU/Linux.
+  --bin-merger            The OS distribution has symlinked sbin to bin for the select exec-prefix.
+
+tweaking of features
+EOF
+    list_optional_features_help
+    cat <<EOF
+
+tweaking of directories and filenames
+  --prefix=DIR            Prefix used for other directories than.
+  --exec-prefix=DIR       Prefix used for /bin, /sbin, /libexec, and /lib.
+  --bindir=DIR            Executable programs that users can run.
+  --sbindir=DIR           Executable administrative programs.
+  --libexecdir=DIR        Executable programs run by other programs and not be users.
+  --libdir=DIR            Object files and libraries of object code.
+  --includedir=DIR        Header files.
+  --oldincludedir=DIR     Header files. Should have the prefix /usr if the canonical prefix is /usr/local.
+  --datarootdir=DIR       Architecture-independent data files.
+  --datadir=DIR           Architecture-independent resource files.
+  --libdatarootdir=DIR    Architecture-dependent data files.
+  --libdatadir=DIR        Architecture-dependent resource files.
+  --sysconfdir=DIR        Machine-local configuration files.
+  --sharedstatedir=DIR    Network-shared architecture-independent state files.
+  --localstatedir=DIR     Machine-local architecture-independent state files.
+  --runstatedir=DIR       Machine-local runtime state files.
+  --lispdir=DIR           Emacs LISP files.
+  --localedir=DIR         Locale-specific message catalogues.
+  --licensedir=DIR        License files.
+  --emptydir=DIR          An always empty directory.
+  --cachedir=DIR          Machine-local cached files.
+  --spooldir=DIR          Machine-local spooled files.
+  --logdir=DIR            Machine-local log files
+  --statedir=DIR          Machine-local persistent state files
+  --gamedir=DIR           Machine-local highscore files.
+  --sharedcachedir=DIR    Network-shared cached files.
+  --sharedspooldir=DIR    Network-shared spooled files.
+  --sharedlogdir=DIR      Network-shared log files
+  --sharedstatedir=DIR    Network-shared persistent state files
+  --sharedgamedir=DIR     Network-shared highscore files.
+  --tmpdir=DIR            Machine-local volatile temporary files.
+  --localtmpdir=DIR       Machine-local persistent temporary files.
+  --sharedtmpdir=DIR      Network-shared temporary files.
+  --lockdir=DIR           Lock files.
+  --skeldir=DIR           User skeleton.
+  --devdir=DIR            Devices and pseudo-devices.
+  --sysdir=DIR            System-information logical file.
+  --procdir=DIR           Process-information logical file.
+  --selfprocdir=DIR       Process-information logical file for the process itself.
+  --docdir=DIR            Documentation files, other then info manuals and man pages.
+  --infodir=DIR           Info manuals.
+  --dvidir=DIR            DVI manuals.
+  --pdfdir=DIR            PDF manuals.
+  --psdir=DIR             PostScript manuals.
+  --htmldir=DIR           HTML manuals.
+  --mandir=DIR            Top-level directory for man pages.
+  --man0=DIR              Basename of the directory for section 0 man pages.
+  --man1=DIR              Basename of the directory for section 1 man pages.
+  --man2=DIR              Basename of the directory for section 2 man pages.
+  --man3=DIR              Basename of the directory for section 3 man pages.
+  --man4=DIR              Basename of the directory for section 4 man pages.
+  --man5=DIR              Basename of the directory for section 5 man pages.
+  --man6=DIR              Basename of the directory for section 6 man pages.
+  --man7=DIR              Basename of the directory for section 7 man pages.
+  --man8=DIR              Basename of the directory for section 8 man pages.
+  --man9=DIR              Basename of the directory for section 9 man pages.
+EOF
+    if test -n "${MAN_SECTION}"; then
+	cat <<EOF
+  --manext=EXT            Filename suffix for the man page.
+EOF
+    fi
+    cat <<EOF
+  --man0ext=EXT           Filename suffix for section 0 man pages.
+  --man1ext=EXT           Filename suffix for section 1 man pages.
+  --man2ext=EXT           Filename suffix for section 2 man pages.
+  --man3ext=EXT           Filename suffix for section 3 man pages.
+  --man4ext=EXT           Filename suffix for section 4 man pages.
+  --man5ext=EXT           Filename suffix for section 5 man pages.
+  --man6ext=EXT           Filename suffix for section 6 man pages.
+  --man7ext=EXT           Filename suffix for section 7 man pages.
+  --man8ext=EXT           Filename suffix for section 8 man pages.
+  --man9ext=EXT           Filename suffix for section 9 man pages.
+EOF
+    exit 0
+fi
+
+
+# Set unset directories to their default.
+defdir ()
+{
+    p="${2}"
+    if ! test "${p%%\'*}" = "${p}"; then
+	p="$(echo "${p}" | sed "s/'/'\\\\''/g")"
+	p="'${p}'"
+	p="$(echo "${p}" | sed "s/'/'\\\\''/g")"
+    elif ! test "$(printf '%s' ${p})" = "${p}"; then
+	p="'${p}'"
+	p="$(echo "${p}" | sed "s/'/'\\\\''/g")"
+    fi
+    if ! test -n "$(eval echo '${have_'"${1}"'}')"; then
+       eval "${1}='${p}'"
+    fi
+}
+if test -n "${f_gnulinux}"; then
+    defdir prefix "/usr"
+    _prefix=
+    case ${prefix} in
+	('' | /   |   /usr | /usr/  |  /games | /games  |  /usr/games | /usr/games/)
+	    _infix=
+	    ;;
+	(/usr/local  |  /usr/local/  |  /usr/local/games  |  /usr/local/games/)
+	    _infix=/local
+	    ;;
+	(/opt/*)
+	    _infix=${prefix}
+	    ;;
+	(*)
+	    # This probably means somewhere in /home, we do not
+	    # checked because we do not know what else to do.
+	    _infix=
+	    _prefix="${prefix}"
+	    ;;
+    esac
+    defdir sysconfdir "${_prefix}/etc${_infix}"
+    defdir sharedstatedir "${_prefix}/com${_infix}"
+    defdir localstatedir "${_prefix}/var${_infix}"
+    defdir runstatedir "${_prefix}/run${_infix}"
+    defdir tmpdir "${_prefix}/tmp${_infix}"
+else
+    defdir prefix "/usr/local"
+    defdir sysconfdir "${prefix}/etc"
+    defdir sharedstatedir "${prefix}/com"
+    defdir localstatedir "${prefix}/var"
+    defdir runstatedir "${localstatedir}/run"
+    defdir tmpdir "${prefix}/tmp"
+fi
+defdir exec_prefix "${prefix}"
+defdir bindir "${exec_prefix}/bin"
+if test -n "${f_bin_merger}"; then
+    defdir sbindir "${bindir}"
+else
+    defdir sbindir "${exec_prefix}/sbin"
+fi
+defdir libexecdir "${exec_prefix}/libexec"
+defdir libdir "${exec_prefix}/lib"
+defdir includedir "${prefix}/include"
+defdir oldincludedir "${includedir}"
+defdir datarootdir "${prefix}/share"
+defdir datadir "${datarootdir}"
+defdir libdatarootdir "${libdir}"
+defdir libdatadir "${libdir}"
+defdir lispdir "${datarootdir}/emacs/site-lisp"
+defdir localedir "${datarootdir}/locale"
+defdir licensedir "${datarootdir}/licenses"
+defdir cachedir "${localstatedir}/cache"
+defdir spooldir "${localstatedir}/spool"
+defdir emptydir "${localstatedir}/empty"
+defdir logdir "${localstatedir}/log"
+defdir statedir "${localstatedir}/lib"
+defdir gamedir "${localstatedir}/games"
+defdir sharedcachedir "${sharedstatedir}/cache"
+defdir sharedpooldir "${sharedstatedir}/spool"
+defdir sharedlogdir "${sharedstatedir}/log"
+defdir sharedstatedir "${sharedstatedir}/lib"
+defdir sharedgamedir "${sharedstatedir}/games"
+defdir localtmpdir "${localstatedir}/tmp"
+defdir sharedtmpdir "${sharedstatedir}/tmp"
+defdir lockdir "${runstatedir}/lock"
+defdir skeldir "${sysconfdir}/skel"
+defdir devdir "/dev"
+defdir sysdir "/sys"
+defdir procdir "/proc"
+defdir selfprocdir "${procdir}/self"
+defdir docdir "${datarootdir}/doc/${PKGNAME}"
+defdir infodir "${datarootdir}/info"
+defdir dvidir "${docdir}"
+defdir pdfdir "${docdir}"
+defdir psdir "${docdir}"
+defdir htmldir "${docdir}"
+defdir mandir "${datarootdir}/man"
+defdir man0 "man0${MAN_SECTION_SUFFIX}"
+defdir man1 "man1${MAN_SECTION_SUFFIX}"
+defdir man2 "man2${MAN_SECTION_SUFFIX}"
+defdir man3 "man3${MAN_SECTION_SUFFIX}"
+defdir man4 "man4${MAN_SECTION_SUFFIX}"
+defdir man5 "man5${MAN_SECTION_SUFFIX}"
+defdir man6 "man6${MAN_SECTION_SUFFIX}"
+defdir man7 "man7${MAN_SECTION_SUFFIX}"
+defdir man8 "man8${MAN_SECTION_SUFFIX}"
+defdir man9 "man9${MAN_SECTION_SUFFIX}"
+if test -n "${MAN_SECTION}" && ! test -n "$(eval echo '${man'"${MAN_SECTION}"'ext}')"; then
+    defdir man${MAN_SECTION}ext "$(eval echo '${man'"${MAN_SECTION}"'ext}')"
+fi
+defdir man0ext ".0"
+defdir man1ext ".1"
+defdir man2ext ".2"
+defdir man3ext ".3"
+defdir man4ext ".4"
+defdir man5ext ".5"
+defdir man6ext ".6"
+defdir man7ext ".7"
+defdir man8ext ".8"
+defdir man9ext ".9"
+
+# Found source directory.
+if ! test -n "${srcdir}"; then
+    if test -f "Makefile.in"; then
+	:
+    elif test -f "${PWD}/Makefile.in"; then
+	srcdir="${PWD}"
+    elif test -f "${PWD}/../Makefile.in"; then
+	srcdir="${PWD}/.."
+    fi
+fi
+if test -n "${srcdir}"; then
+    srcdir="$(realpath "${srcdir}")/"
+    srcdir_proper="${srcdir}"
+    if ! test "${srcdir%%\'*}" = "${srcdir}"; then
+	srcdir="$(echo "${srcdir}" | sed "s/'/'\\\\''/g")"
+	srcdir="'${srcdir}'"
+    elif ! test "$(printf '%s' ${srcdir})" = "${srcdir}"; then
+	srcdir="'${srcdir}'"
+    fi
+fi
+if ! test -f "${srcdir_proper}Makefile.in"; then
+    echo "${0}: error: cannot found source directory."
+    exit 1
+fi
+
+
+# Add shebang and "generated"-comment to config.status.
+echo '#!/bin/sh' >&10
+echo >&10
+echo '# This file was generated by ./configure, its purpose is two-fold:' >&10
+echo '# 1) It lets you rebuild Makefile with the same configurations you' >&10
+echo '#    used last time you run ./configure.' >&10
+echo '# 2) It lets Makefile rebuild itself transparently when out of date.' >&10
+echo >&10
+
+# config.status should adjust CWD.
+echo 'cd "$(dirname "${0}")"' >&10
+
+# config.status calls ./configure with all arguments you called ./configure.
+echo "exec ${0}" "$@" >&10
+
+# Close config.status.
+exec 10>&-
+
+
+# Store environment (with restrictions).
+env | while read line; do
+    var="${line%%=*}"
+    val="${line#*=}"
+    if test "${var}" = "${line}"; then
+	# Malformated variables. (Can happen!, sigh...)
+	continue
+    elif test -n "$(echo "${var}" | tr -d '[_a-zA-Z0-9-]')"; then
+	# Variable is not used and is potentially not
+	# formatted in a compatible way.
+	continue
+    fi
+    case "${var}" in
+	(_ | PWD | SHELL | SHLVL | TERM | COLORTERM | MAKEFLAGS)
+	    # We do not want to propagate these.
+	    ;;
+	(*)
+	    echo "${var}" = "${val}" >&20
+	    ;;
+    esac
+done
+
+# Store directories and filenames.
+if test -n "${destdir}"; then
+   echo DESTDIR = "${destdir}" >&20
+fi
+echo PREFIX = "${prefix}" >&20
+echo SYSCONFDIR = "${sysconfdir}" >&20
+echo COMDIR = "${sharedstatedir}" >&20
+echo VARDIR = "${localstatedir}" >&20
+echo RUNDIR = "${runstatedir}" >&20
+echo TMPDIR = "${tmpdir}" >&20
+echo DEVDIR = "${devdir}" >&20
+echo SYSDIR = "${sysdir}" >&20
+echo PROCDIR = "${procdir}" >&20
+echo EXEC_PREFIX = "${exec_prefix}" >&20
+echo BINDIR = "${bindir}" >&20
+echo SBINDIR = "${sbindir}" >&20
+echo LIBEXECDIR = "${libexecdir}" >&20
+echo LIBDIR = "${libdir}" >&20
+echo INCLUDEDIR = "${includedir}" >&20
+echo OLDINCLUDEDIR = "${oldincludedir}" >&20
+echo DATADIR = "${datarootdir}" >&20
+echo RESDIR = "${datadir}" >&20
+echo SYSDEPDATADIR = "${libdatarootdir}" >&20
+echo SYSDEPRESDIR = "${libdatadir}" >&20
+echo LISPDIR = "${lispdir}" >&20
+echo LOCALEDIR = "${localedir}" >&20
+echo LICENSEDIR = "${licensedir}" >&20
+echo CACHEDIR = "${cachedir}" >&20
+echo SPOOLDIR = "${spooldir}" >&20
+echo EMPTYDIR = "${emptydir}" >&20
+echo LOGDIR = "${logdir}" >&20
+echo STATEDIR = "${statedir}" >&20
+echo GAMEDIR = "${gamedir}" >&20
+echo COMCACHEDIR = "${sharedcachedir}" >&20
+echo COMPOOLDIR = "${sharedpooldir}" >&20
+echo COMLOGDIR = "${sharedlogdir}" >&20
+echo COMSTATEDIR = "${sharedstatedir}" >&20
+echo COMGAMEDIR = "${sharedgamedir}" >&20
+echo LOCALTMPDIR = "${localtmpdir}" >&20
+echo SHAREDTMPDIR = "${sharedtmpdir}" >&20
+echo LOCKDIR = "${lockdir}" >&20
+echo SKELDIR = "${skeldir}" >&20
+echo SELFPROCDIR = "${selfprocdir}" >&20
+echo DOCDIR = "${docdir}" >&20
+echo INFODIR = "${infodir}" >&20
+echo DVIDIR = "${dvidir}" >&20
+echo PDFDIR = "${pdfdir}" >&20
+echo PSDIR = "${psdir}" >&20
+echo HTMLDIR = "${htmldir}" >&20
+echo MANDIR = "${mandir}" >&20
+echo MAN0 = "${man0}" >&20
+echo MAN1 = "${man1}" >&20
+echo MAN2 = "${man2}" >&20
+echo MAN3 = "${man3}" >&20
+echo MAN4 = "${man4}" >&20
+echo MAN5 = "${man5}" >&20
+echo MAN6 = "${man6}" >&20
+echo MAN7 = "${man7}" >&20
+echo MAN8 = "${man8}" >&20
+echo MAN9 = "${man9}" >&20
+echo MAN0EXT = "${man0ext}" >&20
+echo MAN1EXT = "${man1ext}" >&20
+echo MAN2EXT = "${man2ext}" >&20
+echo MAN3EXT = "${man3ext}" >&20
+echo MAN4EXT = "${man4ext}" >&20
+echo MAN5EXT = "${man5ext}" >&20
+echo MAN6EXT = "${man6ext}" >&20
+echo MAN7EXT = "${man7ext}" >&20
+echo MAN8EXT = "${man8ext}" >&20
+echo MAN9EXT = "${man9ext}" >&20
+
+# Close .config.mk.
+exec 20>&-
+
+# Now, make Makefile available.
+if test -f Makefile; then
+    chmod u+w Makefile # This scripts makes it read-only.
+fi
+exec 30>Makefile
+echo "# ----------------------------------------------------- #" >&30
+echo "# This file was created by ./configure from Makefile.in #" >&30
+echo "# ----------------------------------------------------- #" >&30
+echo >&30
+if test -n "${srcdir}"; then
+   echo v = "${srcdir}" >&30
+fi 
+cat "${srcdir_proper}"Makefile.in >&30
+exec 30>&-
+
+
+# config.status should be executable.
+chmod a+x config.status
+
+# Makefile should be read-only to ones does not edit it by mistake.
+chmod a-w Makefile
+
+
+# Help functions for the parent script.
+test_with ()
+{
+    with="$(eval echo '${WITH_'"${1}"'}')"
+    without="$(eval echo '${WITHOUT_'"${1}"'}')"
+    if ! test -n "${with}" && ! test -n "${without}"; then
+	echo "${2}"
+    elif ! test -n "${with}" && test -n "${without}"; then
+	echo "no"
+    elif test -n "${with}" && ! test -n "${without}"; then
+	echo "yes"
+    elif test "${2}" = yes; then
+	echo "no"
+    else
+	echo "yes"
+    fi
+}
+test_enable ()
+{
+    enable="$(eval echo '${ENABLE_'"${1}"'}')"
+    disable="$(eval echo '${DISABLE_'"${1}"'}')"
+    if ! test -n "${enable}" && ! test -n "${disable}"; then
+	echo "${2}"
+    elif ! test -n "${enable}" && test -n "${disable}"; then
+	echo "no"
+    elif test -n "${enable}" && ! test -n "${disable}"; then
+	echo "${enable}"
+    elif test "${2}" = yes ; then
+	echo "no"
+    else
+	echo "${enable}"
+    fi
+}
+
+
+# After including this file, you may want
+# to do something like:
+#
+#   cat <<EOF
+#   
+#   Enabled features, see ${0} for more infomation:
+#   
+#       Internationalisation   $(test_with GETTEXT yes)
+#   
+#   You can now run 'make && make install'.
+#   
+#   EOF
+
diff --git a/mk/copy.mk b/mk/copy.mk
index c27604f..1579193 100644
--- a/mk/copy.mk
+++ b/mk/copy.mk
@@ -31,19 +31,19 @@ ifdef _COPYING
 install-copyright: install-copying
 
 .PHONY: install-copying
-install-copying: $(_COPYING)
+install-copying: $(foreach F,$(_COPYING),$(v)$(F))
 	@$(PRINTF_INFO) '\e[00;01;31mINSTALL\e[34m %s\e[00m\n' "$@"
 	$(Q)$(INSTALL_DIR) -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)"
 	$(Q)$(INSTALL_DATA) $^ -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)"
 	@$(ECHO_EMPTY)
 endif
 
-ifdef _COPYING
+ifdef _LICENSE
 .PHONY: install-copyright
 install-copyright: install-license
 
 .PHONY: install-license
-install-license: $(_LICENSE)
+install-license: $(foreach F,$(_LICENSE),$(v)$(F))
 	@$(PRINTF_INFO) '\e[00;01;31mINSTALL\e[34m %s\e[00m\n' "$@"
 	$(Q)$(INSTALL_DIR) -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)"
 	$(Q)$(INSTALL_DATA) $^ -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)"
@@ -66,7 +66,7 @@ uninstall-copying:
 	-$(Q)$(RMDIR) -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)"
 endif
 
-ifdef _COPYING
+ifdef _LICENSE
 .PHONY: uninstall-copyright
 uninstall-copyright: uninstall-license
 
diff --git a/mk/dist.mk b/mk/dist.mk
index 34b5f13..a2a3edf 100644
--- a/mk/dist.mk
+++ b/mk/dist.mk
@@ -27,10 +27,29 @@ GPG_FLAGS =
 # What key should be used for signing?
 GPG_KEY ?=
 
+# You should define _EVERYTHING to enumerate all files that belong in
+# the release tarball, lest 'git archive' will be used as a fallback.
+
 
 
 # HELP VARIALES:
 
+# You may use these to help list all files in _EVERYTHING
+__EVERYTHING_COMMON = $(_COPYING) $(_LICENSE) README
+__EVERYTHING_SRC = $(foreach F,$(_SRC),src/$(F))
+__EVERYTHING_LOCALE = $(foreach L,$(LOCALES),po/$(L).po)
+__EVERYTHING_MK_ = all clean copy dist empty i18n lang-c lowerpath man path prologue tags texinfo tools
+__EVERYTHING_MK = $(foreach F,$(__EVERYTHING_MK_),mk/$(F).mk) mk/configure mk/README configure Makefile.in
+__EVERYTHING_MAN = $(foreach S,$(_MAN_PAGE_SECTIONS),$(foreach P,$(_MAN_$(S)),doc/man/$(P).$(S)))  \
+                   $(foreach S,$(_MAN_PAGE_SECTIONS),$(foreach L,$(MAN_LOCALES),$(foreach P,$(_MAN_$(L)_$(S)),doc/man/$(P).$(L).$(S))))
+__EVERYTHING_ALL_COMMON = $(__EVERYTHING_COMMON) $(__EVERYTHING_MK) $(__EVERYTHING_MAN)  \
+                          $(__EVERYTHING_LOCALE) $(__EVERYTHING_SRC)
+# This one (__todo) if you have a todo file, but do not want it to be greped.
+__TO__ = TO
+__DO__ = DO
+__todo = $(__TO__)$(__DO__)
+
+
 # The packages and there detached signatures (if any.)
 ifndef DO_NOT_SIGN
 __DIST_FILES = $(foreach F,$(DIST_FORMATS),$(_PROJECT)-$(_VERSION).$(F) $(_PROJECT)-$(_VERSION).$(F).sig)
@@ -109,10 +128,20 @@ dist-gz: $(_PROJECT)-$(_VERSION).tar.gz
 endif
 
 # Generate the tarball for the release.
-$(_PROJECT)-$(_VERSION).tar:
-	@$(PRINTF_INFO) '\e[00;01;31mARCHIVE\e[34m %s\e[00m$A\n' "$@"
+ifdef v
+__GIT_DIR = --git-dir=$(v)
+endif
+$(_PROJECT)-$(_VERSION).tar: $(foreach F,$(_EVERYTHING),$(v)$(F))
+	@$(PRINTF_INFO) '\e[00;01;31mTAR\e[34m %s\e[00m$A\n' "$@"
 	@if $(TEST) -f $@; then $(RM) $@; fi
-	$(Q)git archive --prefix=$(_PROJECT)-$(_VERSION)/ --format=tar $(_VERSION) -o $@ #$Z
+ifndef _EVERYTHING
+	$(Q)git archive --prefix=$(_PROJECT)-$(_VERSION)/ --format=tar $(__GIT_DIR) $(_VERSION) -o $@ #$Z
+endif
+ifdef _EVERYTHING
+	$(Q)$(LN) -s . $(_PROJECT)-$(_VERSION)
+	$(Q)$(TAR) c -- $(foreach F,$(_EVERYTHING),$(v)$(_PROJECT)-$(_VERSION)/$(F)) > $@
+	$(Q)$(RM) $(_PROJECT)-$(_VERSION)
+endif
 	@$(ECHO_EMPTY)
 
 # Compression rule for xz-compression. Used on the tarball.
diff --git a/mk/empty.mk b/mk/empty.mk
index 6e95a1e..81c06fb 100644
--- a/mk/empty.mk
+++ b/mk/empty.mk
@@ -25,6 +25,10 @@ cmd:
 doc:
 
 
+.PHONY: check
+check:
+
+
 .PHONY: install
 install:
 
@@ -41,6 +45,10 @@ install-cmd:
 install-doc:
 
 
+.PHONY: installcheck
+installcheck:
+
+
 .PHONY: uninstall
 uninstall:
 
diff --git a/mk/i18n.mk b/mk/i18n.mk
index 842377b..cc27903 100644
--- a/mk/i18n.mk
+++ b/mk/i18n.mk
@@ -19,6 +19,9 @@
 # 
 # If WITHOUT_GETTEXT is defined, `locale` and
 # `install-locale` will not do anything.
+# 
+# _SRC should list all sources files, excluding the src/
+# at the beginning of the pathnames.
 
 
 ifdef LOCALES
@@ -50,9 +53,9 @@ endif
 update-po: $(foreach L,$(LOCALES),po/$(L).po)
 
 # Generate template for translations.
-obj/$(_PROJECT).pot: $(foreach S,$(_SRC),src/$(S).c)
+aux/$(_PROJECT).pot: $(foreach S,$(_SRC),$(v)src/$(S))
 	@$(PRINTF_INFO) '\e[00;01;31mPOT\e[34m %s\e[00m$A\n' "$@"
-	@$(MKDIR) -p obj
+	@$(MKDIR) -p aux
 	$(Q)$(CPP) -DUSE_GETTEXT=1 $^ |  \
 	$(XGETTEXT) -o "$@" -Lc --from-code utf-8 --package-name "$(_PROJECT_FULL)"  \
 	--package-version $(_VERSION) --no-wrap --force-po  \
@@ -60,22 +63,22 @@ obj/$(_PROJECT).pot: $(foreach S,$(_SRC),src/$(S).c)
 	@$(ECHO_EMPTY)
 
 # Create or update a translation file.
-po/%.po: obj/$(_PROJECT).pot
+po/%.po: aux/$(_PROJECT).pot
 	@$(PRINTF_INFO) '\e[00;01;31mPO\e[34m %s\e[00m$A\n' "$@"
 	@$(MKDIR) -p po
 	$(Q)if ! $(TEST) -e $@; then  \
-	  $(MSGINIT) --no-translator --no-wrap -i $< -o $@ -l $*;  \
+	  $(MSGINIT) --no-translator --no-wrap -i aux/$(_PROJECT).pot -o $@ -l $*;  \
 	else  \
-	  $(MSGMERGE) --no-wrap -U $@ $<;  \
+	  $(MSGMERGE) --no-wrap -U $@ aux/$(_PROJECT).pot;  \
 	fi #$Z
 	@$(TOUCH) $@
 	@$(ECHO_EMPTY)
 
 # Compile a translation file.
-bin/mo/%/messages.mo: po/%.po
+bin/mo/%/messages.mo: $(v)po/%.po
 	@$(PRINTF_INFO) '\e[00;01;31mMO\e[34m %s\e[00m$A\n' "$@"
 	@$(MKDIR) -p bin/mo/$*
-	$(Q)cd bin/mo/$* && $(MSGFMT) ../../../$< #$Z
+	$(Q)cd bin/mo/$* && $(MSGFMT) $(__back3unless_v)$< #$Z
 	@$(ECHO_EMPTY)
 
 
diff --git a/mk/lang-c.mk b/mk/lang-c.mk
index 9d5dc8d..83e305b 100644
--- a/mk/lang-c.mk
+++ b/mk/lang-c.mk
@@ -34,7 +34,7 @@
 # should be the basenames. For each command
 # you should be the variable _OBJ_$(COMMAND)
 # that lists all objects files (without the
-# suffix and without the obj/ prefix) that
+# suffix and without the aux/ prefix) that
 # are required to build the command.
 
 
@@ -60,12 +60,12 @@ endif
 # BUILD VARIABLES:
 
 # Optimisation settings for C code compilation.
-ifdef DEBUG
-OPTIMISE = -Og -g
+ifndef DEBUG
+OPTIMISE = -O2 -g
 endif
 ifndef DEBUG
-ifndef OPTIMISE
-OPTIMISE = -O2
+ifdef OPTIMISE
+OPTIMISE = -Og -g
 endif
 endif
 
@@ -73,6 +73,10 @@ endif
 ifdef _PEDANTIC
 _PEDANTIC = -pedantic
 endif
+ifndef DEBUG
+WARN = -Wall
+endif
+ifdef DEBUG
 ifdef __USING_GCC
 WARN = -Wall -Wextra $(_PEDANTIC) -Wdouble-promotion -Wformat=2 -Winit-self -Wmissing-include-dirs   \
        -Wtrampolines -Wmissing-prototypes -Wmissing-declarations -Wnested-externs                    \
@@ -89,6 +93,7 @@ endif
 ifndef __USING_GCC
 WARN = -Wall -Wextra $(_PEDANTIC)
 endif
+endif
 
 # Support for internationalisation?
 ifndef WITHOUT_GETTEXT
@@ -102,10 +107,13 @@ _CPPFLAGS += $(foreach D,$(_ALL_DIRS),-D'$(D)="$($(D))"')
 # MORE HELP VARIABLES:
 
 # Compilation and linking flags, and command.
-__CC = $(CC) -std=$(_C_STD) $(OPTIMISE) $(WARN) $(_CPPFLAGS) $(_CFLAGS) -c
-__LD = $(CC) -std=$(_C_STD) $(OPTIMISE) $(WARN) $(_LDFLAGS)
-__CC_POST = $(CPPFLAGS) $(CFLAGS)
-__LD_POST = $(LDFLAGS)
+CPPFLAGS = $(_CPPFLAGS)
+CFLAGS = $(OPTIMISE) $(WARN) $(_CFLAGS)
+LDFLAGS = $(OPTIMISE) $(WARN) $(_LDFLAGS)
+__CC = $(CC) -std=$(_C_STD) -c
+__LD = $(CC) -std=$(_C_STD) 
+__CC_POST = $(CPPFLAGS) $(CFLAGS) $(EXTRA_CPPFLAGS) $(EXTRA_CFLAGS)
+__LD_POST = $(LDFLAGS) $(EXTRA_LDFLAGS)
 
 # Header files.
 __H =
@@ -133,9 +141,9 @@ endif
 cmd-c: $(foreach B,$(_BIN),bin/$(B))
 
 # Compile a C file into an object file.
-obj/%.o: src/%.c $(__H)
+aux/%.o: $(v)src/%.c $(foreach H,$(__H),$(v)$(H))
 	@$(PRINTF_INFO) '\e[00;01;31mCC\e[34m %s\e[00m$A\n' "$@"
-	@$(MKDIR) -p $(shell dirname $@)
+	@$(MKDIR) -p $(shell $(DIRNAME) $@)
 	$(Q)$(__CC) -o $@ $< $(__CC_POST) #$Z
 	@$(ECHO_EMPTY)
 
@@ -148,7 +156,7 @@ bin/%:
 	@$(ECHO_EMPTY)
 
 # Dependencies for the rule above.
-$(foreach B,$(_BIN),$(foreach O,$(_OBJ_$(B)),bin/$(B): obj/$(O).o\
+$(foreach B,$(_BIN),$(foreach O,$(_OBJ_$(B)),bin/$(B): aux/$(O).o\
 ))
 
 
diff --git a/mk/lowerpath.mk b/mk/lowerpath.mk
new file mode 100644
index 0000000..aadb91f
--- /dev/null
+++ b/mk/lowerpath.mk
@@ -0,0 +1,279 @@
+# Copyright (C) 2015  Mattias Andrée <maandree@member.fsf.org>
+# 
+# Copying and distribution of this file, with or without modification,
+# are permitted in any medium without royalty provided the copyright
+# notice and this notice are preserved.  This file is offered as-is,
+# without any warranty.
+
+
+#=== This file overrides values uppercase path variables with values lowercase path variables. ===#
+
+
+ifdef srcdir
+VPATH = $(srcdir)
+endif
+
+ifdef prefix
+PREFIX = $(prefix)
+endif
+
+ifdef sysconfdir
+SYSCONFDIR = $(sysconfdir)
+endif
+
+ifdef sharedstatedir
+COMDIR = $(sharedstatedir)
+endif
+
+ifdef localstatedir
+VARDIR = $(localstatedir)
+endif
+
+ifdef runstatedir
+RUNDIR = $(runstatedir)
+endif
+
+ifdef tmpdir
+TMPDIR = $(tmpdir)
+endif
+
+ifdef devdir
+DEVDIR = $(devdir)
+endif
+
+ifdef sysdir
+SYSDIR = $(sysdir)
+endif
+
+ifdef procdir
+PROCDIR = $(procdir)
+endif
+
+ifdef exec_prefix
+EXEC_PREFIX = $(exec_prefix)
+endif
+
+ifdef bindir
+BINDIR = $(bindir)
+endif
+
+ifdef sbindir
+SBINDIR = $(sbindir)
+endif
+
+ifdef libexecdir
+LIBEXECDIR = $(libexecdir)
+endif
+
+ifdef libdir
+LIBDIR = $(libdir)
+endif
+
+ifdef includedir
+INCLUDEDIR = $(includedir)
+endif
+
+ifdef oldincludedir
+OLDINCLUDEDIR = $(oldincludedir)
+endif
+
+ifdef datarootdir
+DATADIR = $(datarootdir)
+endif
+
+ifdef datadir
+RESDIR = $(datadir)
+endif
+
+ifdef libdatarootdir
+SYSDEPDATADIR = $(libdatarootdir)
+endif
+
+ifdef libdatadir
+SYSDEPRESDIR = $(libdatadir)
+endif
+
+ifdef lispdir
+LISPDIR = $(lispdir)
+endif
+
+ifdef localedir
+LOCALEDIR = $(localedir)
+endif
+
+ifdef licensedir
+LICENSEDIR = $(licensedir)
+endif
+
+ifdef cachedir
+CACHEDIR = $(cachedir)
+endif
+
+ifdef spooldir
+SPOOLDIR = $(spooldir)
+endif
+
+ifdef emptydir
+EMPTYDIR = $(emptydir)
+endif
+
+ifdef logdir
+LOGDIR = $(logdir)
+endif
+
+ifdef statedir
+STATEDIR = $(statedir)
+endif
+
+ifdef gamedir
+GAMEDIR = $(gamedir)
+endif
+
+ifdef sharedcachedir
+COMCACHEDIR = $(sharedcachedir)
+endif
+
+ifdef sharedpooldir
+COMPOOLDIR = $(sharedpooldir)
+endif
+
+ifdef sharedlogdir
+COMLOGDIR = $(sharedlogdir)
+endif
+
+ifdef sharedlogdir
+COMSTATEDIR = $(sharedstatedir)
+endif
+
+ifdef sharedgamedir
+COMGAMEDIR = $(sharedgamedir)
+endif
+
+ifdef localtmpdir
+VARTMPDIR = $(localtmpdir)
+endif
+
+ifdef sharedtmpdir
+COMTMPDIR = $(sharedtmpdir)
+endif
+
+ifdef lockdir
+LOCKDIR = $(lockdir)
+endif
+
+ifdef skeldir
+SKELDIR = $(skeldir)
+endif
+
+ifdef selfprocdir
+SELFPROCDIR = $(selfprocdir)
+endif
+
+ifdef docdir
+DOCDIR = $(docdir)
+endif
+
+ifdef infodir
+INFODIR = $(infodir)
+endif
+
+ifdef dvidir
+DVIDIR = $(dvidir)
+endif
+
+ifdef pdfdir
+PDFDIR = $(pdfdir)
+endif
+
+ifdef psdir
+PSDIR = $(psdir)
+endif
+
+ifdef htmldir
+HTMLDIR = $(htmldir)
+endif
+
+ifdef mandir
+MANDIR = $(mandir)
+endif
+
+ifdef man0
+MAN0 = $(man0)
+endif
+
+ifdef man1
+MAN1 = $(man1)
+endif
+
+ifdef man2
+MAN2 = $(man2)
+endif
+
+ifdef man3
+MAN3 = $(man3)
+endif
+
+ifdef man4
+MAN4 = $(man4)
+endif
+
+ifdef man5
+MAN5 = $(man5)
+endif
+
+ifdef man6
+MAN6 = $(man6)
+endif
+
+ifdef man7
+MAN7 = $(man7)
+endif
+
+ifdef man8
+MAN8 = $(man8)
+endif
+
+ifdef man9
+MAN9 = $(man9)
+endif
+
+ifdef man0ext
+MAN0EXT = $(man0ext)
+endif
+
+ifdef man1ext
+MAN1EXT = $(man1ext)
+endif
+
+ifdef man2ext
+MAN2EXT = $(man2ext)
+endif
+
+ifdef man3ext
+MAN3EXT = $(man3ext)
+endif
+
+ifdef man4ext
+MAN4EXT = $(man4ext)
+endif
+
+ifdef man5ext
+MAN5EXT = $(man5ext)
+endif
+
+ifdef man6ext
+MAN6EXT = $(man6ext)
+endif
+
+ifdef man7ext
+MAN7EXT = $(man7ext)
+endif
+
+ifdef man8ext
+MAN8EXT = $(man8ext)
+endif
+
+ifdef man9ext
+MAN9EXT = $(man9ext)
+endif
+
diff --git a/mk/man.mk b/mk/man.mk
index 20beb50..8105249 100644
--- a/mk/man.mk
+++ b/mk/man.mk
@@ -56,7 +56,7 @@ ifdef COMMAND
 ifeq ($(shell $(PRINTF) '%s\n' $(COMMAND) | $(WC) -l),1)
 ifeq ($(shell $(PRINTF) '%s\n' $(_MAN_PAGE_SECTIONS) | $(WC) -l),1)
 ifeq ($(shell $(PRINTF) '%s\n' $(_MAN_$(_MAN_PAGE_SECTIONS)) | $(WC) -l),1)
-__MAN_COMMAND = $(COMMAND).$(MAN$(_MAN_PAGE_SECTIONS)EXT)
+__MAN_COMMAND = $(COMMAND)$(MAN$(_MAN_PAGE_SECTIONS)EXT)
 endif
 endif
 endif
@@ -71,40 +71,39 @@ install-man: install-man-untranslated install-man-locale
 .PHONY: install-man-untranslated
 install-man-untranslated:
 	@$(PRINTF_INFO) '\e[00;01;31mINSTALL\e[34m %s\e[00m\n' "$@"
-	$(Q)$(INSTALL_DIR) -- $(foreach S,$(_MAN_PAGE_SECTIONS),"$(DESTDIR)$(MANDIR)$(MAN$(S))")
+	$(Q)$(INSTALL_DIR) -- $(foreach S,$(_MAN_PAGE_SECTIONS),"$(DESTDIR)$(MANDIR)/$(MAN$(S))")
 ifndef __MAN_COMMAND
-	$(Q)$(foreach S,$(_MAN_PAGE_SECTIONS),$(foreach P,$(_MAN_$(S)),$(INSTALL_DATA) doc/man/$(P).$(S) -- "$(DESTDIR)$(MANDIR)$(MAN$(S))/$(P).$(MAN$(S)EXT)" &&)) $(TRUE)
+	$(Q)$(foreach S,$(_MAN_PAGE_SECTIONS),$(foreach P,$(_MAN_$(S)),$(INSTALL_DATA) $(v)doc/man/$(P).$(S) -- "$(DESTDIR)$(MANDIR)/$(MAN$(S))/$(P)$(MAN$(S)EXT)" &&)) $(TRUE)
 endif
 ifdef __MAN_COMMAND
-	$(Q)$(foreach S,$(_MAN_PAGE_SECTIONS),$(foreach P,$(_MAN_$(S)),$(INSTALL_DATA) doc/man/$(P).$(S) -- "$(DESTDIR)$(MANDIR)$(MAN$(S))/$(__MAN_COMMAND)" &&)) $(TRUE)
+	$(Q)$(foreach S,$(_MAN_PAGE_SECTIONS),$(foreach P,$(_MAN_$(S)),$(INSTALL_DATA) $(v)doc/man/$(P).$(S) -- "$(DESTDIR)$(MANDIR)/$(MAN$(S))/$(__MAN_COMMAND)" &&)) $(TRUE)
 endif
 	@$(ECHO_EMPTY)
 
 .PHONY: install-man-locale
 install-man-locale:
 	@$(PRINTF_INFO) '\e[00;01;31mINSTALL\e[34m %s\e[00m\n' "$@"
-	$(Q)$(foreach L,$(MAN_LOCALES),$(INSTALL_DIR) -- $(foreach S,$(_MAN_PAGE_SECTIONS),"$(DESTDIR)$(MANDIR)/$(L)$(MAN$(S))") &&) $(TRUE)
+	$(Q)$(foreach L,$(MAN_LOCALES),$(INSTALL_DIR) -- $(foreach S,$(_MAN_PAGE_SECTIONS),"$(DESTDIR)$(MANDIR)/$(L)/$(MAN$(S))") &&) $(TRUE)
 ifndef __MAN_COMMAND
-	$(Q)$(foreach L,$(MAN_LOCALES),$(foreach S,$(_MAN_PAGE_SECTIONS),$(foreach P,$(_MAN_$(L)_$(S)),$(INSTALL_DATA) doc/man/$(P).$(L).$(S) -- "$(DESTDIR)$(MANDIR)/$(L)$(MAN$(S))/$(P).$(MAN$(S)EXT)" &&))) $(TRUE)
+	$(Q)$(foreach L,$(MAN_LOCALES),$(foreach S,$(_MAN_PAGE_SECTIONS),$(foreach P,$(_MAN_$(L)_$(S)),$(INSTALL_DATA) $(v)doc/man/$(P).$(L).$(S) -- "$(DESTDIR)$(MANDIR)/$(L)/$(MAN$(S))/$(P)$(MAN$(S)EXT)" &&))) $(TRUE)
 endif
 ifdef __MAN_COMMAND
-	$(Q)$(foreach L,$(MAN_LOCALES),$(foreach S,$(_MAN_PAGE_SECTIONS),$(foreach P,$(_MAN_$(L)_$(S)),$(INSTALL_DATA) doc/man/$(P).$(L).$(S) -- "$(DESTDIR)$(MANDIR)/$(L)$(MAN$(S))/$(__MAN_COMMAND)" &&))) $(TRUE)
+	$(Q)$(foreach L,$(MAN_LOCALES),$(foreach S,$(_MAN_PAGE_SECTIONS),$(foreach P,$(_MAN_$(L)_$(S)),$(INSTALL_DATA) $(v)doc/man/$(P).$(L).$(S) -- "$(DESTDIR)$(MANDIR)/$(L)/$(MAN$(S))/$(__MAN_COMMAND)" &&))) $(TRUE)
 endif
 	@$(ECHO_EMPTY)
 
 
-
 # UNINSTALL RULES:
 
 .PHONY: uninstall-man
 uninstall-man:
 ifndef __MAN_COMMAND
-	-$(Q)$(RM) -- $(foreach S,$(_MAN_PAGE_SECTIONS),$(foreach P,$(_MAN_$(S)),"$(DESTDIR)$(MANDIR)$(MAN$(S))/$(P).$(MAN$(S)EXT)"))
-	-$(Q)$(RM) -- $(foreach L,$(MAN_LOCALES),$(foreach S,$(_MAN_PAGE_SECTIONS),$(foreach P,$(_MAN_$(L)_$(S)),"$(DESTDIR)$(MANDIR)/$(L)$(MAN$(S))/$(P).$(MAN$(S)EXT)")))
+	-$(Q)$(RM) -- $(foreach S,$(_MAN_PAGE_SECTIONS),$(foreach P,$(_MAN_$(S)),"$(DESTDIR)$(MANDIR)/$(MAN$(S))/$(P).$(MAN$(S)EXT)"))
+	-$(Q)$(RM) -- $(foreach L,$(MAN_LOCALES),$(foreach S,$(_MAN_PAGE_SECTIONS),$(foreach P,$(_MAN_$(L)_$(S)),"$(DESTDIR)$(MANDIR)/$(L)/$(MAN$(S))/$(P)$(MAN$(S)EXT)")))
 endif
 ifdef __MAN_COMMAND
-	-$(Q)$(RM) -- "$(DESTDIR)$(MANDIR)$(MAN$(_MAN_PAGE_SECTIONS))/$(__MAN_COMMAND)"
-	-$(Q)$(RM) -- $(foreach L,$(MAN_LOCALES),$(foreach S,$(_MAN_PAGE_SECTIONS),$(foreach P,$(_MAN_$(L)_$(S)),"$(DESTDIR)$(MANDIR)/$(L)$(MAN$(S))/$(__MAN_COMMAND)")))
+	-$(Q)$(RM) -- "$(DESTDIR)$(MANDIR)/$(MAN$(_MAN_PAGE_SECTIONS))/$(__MAN_COMMAND)"
+	-$(Q)$(RM) -- $(foreach L,$(MAN_LOCALES),$(foreach S,$(_MAN_PAGE_SECTIONS),$(foreach P,$(_MAN_$(L)_$(S)),"$(DESTDIR)$(MANDIR)/$(L)/$(MAN$(S))/$(__MAN_COMMAND)")))
 endif
 
 
diff --git a/mk/path.mk b/mk/path.mk
index 060a1c0..a65b7b8 100644
--- a/mk/path.mk
+++ b/mk/path.mk
@@ -17,6 +17,8 @@ __PATH_MK_INCLUDED = 1
 
 # The package path prefix, if you want to install to another root, set DESTDIR to that root.
 PREFIX = /usr
+# The package path prefix for /bin, /sbin, /lib and /libexec.
+EXEC_PREFIX = /usr
 # The command path excluding prefix.
 BIN = /bin
 # The administration command path excluding prefix.
@@ -42,21 +44,32 @@ MAN8 = /man8
 MAN9 = /man9
 
 # The command path including prefix.
-BINDIR = $(PREFIX)$(BIN)
+BINDIR = $(EXEC_PREFIX)$(BIN)
 # The administration command path including prefix.
-SBINDIR = $(PREFIX)$(SBIN)
+SBINDIR = $(EXEC_PREFIX)$(SBIN)
 # The library path including prefix.
-LIBDIR = $(PREFIX)$(LIB)
+LIBDIR = $(EXEC_PREFIX)$(LIB)
 # The executable library path including prefix.
-LIBEXECDIR = $(PREFIX)$(LIBEXEC)
+LIBEXECDIR = $(EXEC_PREFIX)$(LIBEXEC)
 # The header-file path including prefix.
 INCLUDEDIR = $(PREFIX)$(INCLUDE)
-# The resource path including prefix.
+# The header-file path including prefix. Must not be /usr/local.
+ifeq ($(PREFIX),/usr/lcoal)
+OLDINCLUDEDIR = /usr$(INCLUDE)
+endif
+ifneq ($(PREFIX),/usr/lcoal)
+OLDINCLUDEDIR = $(PREFIX)$(INCLUDE)
+endif
+# The data path including prefix.
 DATADIR = $(PREFIX)$(DATA)
+# The architecture-dependent data path including prefix.
+SYSDEPDATADIR = $(DATADIR)
+# The resource path including prefix.
+RESDIR = $(DATADIR)
 # The architecture-dependent resource path including prefix.
-SYSDEPDATA = $(DATADIR)
+SYSDEPRESDIR = $(RESDIR)
 # The generic documentation path including prefix.
-DOCDIR = $(DATADIR)/doc
+DOCDIR = $(DATADIR)/doc/$(PKGNAME)
 # The info manual documentation path including prefix.
 INFODIR = $(DATADIR)/info
 # The DVI documentation path including prefix.
@@ -69,6 +82,8 @@ PSDIR = $(DOCDIR)
 HTMLDIR = $(DOCDIR)
 # The man page documentation path including prefix.
 MANDIR = $(DATADIR)/man
+# The Emacs LISP path including prefix.
+LISPDIR = $(DATADIR)/emacs/site-lisp
 # The locale path including prefix.
 LOCALEDIR = $(DATADIR)/locale
 # The license base path including prefix.
@@ -115,8 +130,6 @@ SKELDIR = $(SYSCONFDIR)/skel
 COMCACHEDIR = $(COMDIR)/cache
 # The network-common spool directory.
 COMSPOOLDIR = $(COMDIR)/spool
-# The network-common empty directory.
-COMEMPTYDIR = $(COMDIR)/empty
 # The network-common logfile directory.
 COMLOGDIR = $(COMDIR)/log
 # The network-common state directory.
@@ -128,28 +141,35 @@ COMGAMEDIR = $(COMDIR)/games
 # FILENAME SUFFIXES:
 
 # Filename suffixes for man pages by section.
-MAN0EXT = 0
-MAN1EXT = 1
-MAN2EXT = 2
-MAN3EXT = 3
-MAN4EXT = 4
-MAN5EXT = 5
-MAN6EXT = 6
-MAN7EXT = 7
-MAN8EXT = 8
-MAN9EXT = 9
+MAN0EXT = .0
+MAN1EXT = .1
+MAN2EXT = .2
+MAN3EXT = .3
+MAN4EXT = .4
+MAN5EXT = .5
+MAN6EXT = .6
+MAN7EXT = .7
+MAN8EXT = .8
+MAN9EXT = .9
 
 
 # HELP VARIABLES:
 
 # All path variables that includes the prefix,
 # or are unaffected by the prefix.
-_ALL_DIRS = BINDIR SBINDIR LIBDIR LIBEXECDIR INCLUDEDIR DATADIR SYSDEPDATA DOCDIR  \
+_ALL_DIRS = BINDIR SBINDIR LIBDIR LIBEXECDIR INCLUDEDIR DATADIR SYSDEPDATADIR DOCDIR  \
             INFODIR DVIDIR PDFDIR PSDIR HTMLDIR MANDIR LOCALEDIR LICENSEDIR VARDIR  \
-            VARTMPDIR COMDIR COMTMPDIR TMPDIR RUNDIR SYSCONFDIR DEVDIR SYSDIR  \
+            RESDIR VARTMPDIR COMDIR COMTMPDIR TMPDIR RUNDIR SYSCONFDIR DEVDIR SYSDIR  \
             PROCDIR SELFPROCDIR CACHEDIR SPOOLDIR EMPTYDIR LOGDIR STATEDIR GAMEDIR \
-            LOCKDIR SKELDIR COMCACHEDIR COMSPOOLDIR COMEMPTYDIR COMLOGDIR COMSTATEDIR \
-            COMGAMEDIR
+            LOCKDIR SKELDIR COMCACHEDIR COMSPOOLDIR COMLOGDIR COMSTATEDIR COMGAMEDIR \
+            SYSDEPRESDIR OLDINCLUDEDIR
+
+# ../, ../../, and ../../../, ignored if v is used, which if an absolute path.
+ifndef v
+__back1unless_v = ../
+__back2unless_v = ../../
+__back3unless_v = ../../../
+endif
 
 
 endif
diff --git a/mk/prologue.mk b/mk/prologue.mk
new file mode 100644
index 0000000..525da28
--- /dev/null
+++ b/mk/prologue.mk
@@ -0,0 +1,16 @@
+# Copyright (C) 2015  Mattias Andrée <maandree@member.fsf.org>
+# 
+# Copying and distribution of this file, with or without modification,
+# are permitted in any medium without royalty provided the copyright
+# notice and this notice are preserved.  This file is offered as-is,
+# without any warranty.
+
+
+#=== This file includes rules for automatically rebuilding the makefile. ===#
+
+
+base: Makefile
+
+Makefile: $(v)Makefile.in config.status $(v)configure $(v)mk/configure
+	./config.status
+
diff --git a/mk/texinfo.mk b/mk/texinfo.mk
index db7fa07..d08cb6b 100644
--- a/mk/texinfo.mk
+++ b/mk/texinfo.mk
@@ -6,6 +6,7 @@
 # without any warranty.
 
 
+# TODO ((support translations))
 #=== These rules are used for Texinfo manuals. ===#
 
 
@@ -64,15 +65,15 @@ uninstall: uninstall-info uninstall-dvi uninstall-pdf uninstall-ps uninstall-htm
 __TEXI_SRC =
 ifdef _TEXINFO_DIRLEVELS
 ifeq ($(_TEXINFO_DIRLEVELS),1)
-__TEXI_SRC += doc/info/*.texinfo
+__TEXI_SRC += $(v)doc/info/*.texinfo
 endif
 ifneq ($(_TEXINFO_DIRLEVELS),1)
 ifeq ($(_TEXINFO_DIRLEVELS),2)
-__TEXI_SRC += doc/info/*.texinfo
-__TEXI_SRC += doc/info/*/*.texinfo
+__TEXI_SRC += $(v)doc/info/*.texinfo
+__TEXI_SRC += $(v)doc/info/*/*.texinfo
 endif
 ifneq ($(_TEXINFO_DIRLEVELS),2)
-__TEXI_SRC += $(foreach W,$(shell $(SEQ) $(_TEXINFO_DIRLEVELS) | while read n; do $(ECHO) $$($(SEQ) $$n)" " | $(SED) 's/[^ ]* /\/\*/g'; done | $(XARGS) $(ECHO)),doc/info$(W).texinfo)
+__TEXI_SRC += $(foreach W,$(shell $(SEQ) $(_TEXINFO_DIRLEVELS) | while read n; do $(ECHO) $$($(SEQ) $$n)" " | $(SED) 's/[^ ]* /\/\*/g'; done | $(XARGS) $(ECHO)),$(v)doc/info$(W).texinfo)
 endif
 endif
 endif
@@ -95,37 +96,37 @@ endif
 
 ifdef _LOGO
 # Prepare conversion of logo.
-obj/$(_LOGO).svg: doc/$(_LOGO).svg
+aux/$(_LOGO).svg: $(v)doc/$(_LOGO).svg
 	@$(PRINTF_INFO) '\e[00;01;31mCP\e[34m %s\e[00m$A\n' "$@"
-	@$(MKDIR) -p obj
-	$(Q)$(CP) $< $@ #$Z
+	@$(MKDIR) -p aux
+	$(Q)$(CP) $^ $@ #$Z
 	@$(ECHO_EMPTY)
 
 # Intermediate format for the logo for DVI and PostScript manuals.
-obj/$(_LOGO).ps: doc/$(_LOGO).svg
+aux/$(_LOGO).ps: $(v)doc/$(_LOGO).svg
 	@$(PRINTF_INFO) '\e[00;01;31mPS\e[34m %s\e[00m$A\n' "$@"
-	@$(MKDIR) -p obj
-	$(Q)$(SVG2PS) $< > $@ #$Z
+	@$(MKDIR) -p aux
+	$(Q)$(SVG2PS) $^ > $@ #$Z
 	@$(ECHO_EMPTY)
 
 # Logo for DVI and PostScript manuals.
-obj/$(_LOGO).eps: obj/$(_LOGO).ps
+aux/$(_LOGO).eps: aux/$(_LOGO).ps
 	@$(PRINTF_INFO) '\e[00;01;31mEPS\e[34m %s\e[00m$A\n' "$@"
-	$(Q)$(PS2EPS) $< #$Z
+	$(Q)$(PS2EPS) $^ #$Z
 	@$(ECHO_EMPTY)
 
 # Logo for PDF manual.
-obj/$(_LOGO).pdf: doc/$(_LOGO).svg
+aux/$(_LOGO).pdf: doc/$(_LOGO).svg
 	@$(PRINTF_INFO) '\e[00;01;31mPDF\e[34m %s\e[00m$A\n' "$@"
-	@$(MKDIR) -p obj
-	$(Q)$(SVG2PDF) $< > $@ #$Z
+	@$(MKDIR) -p aux
+	$(Q)$(SVG2PDF) $^ > $@ #$Z
 	@$(ECHO_EMPTY)
 endif
 
 # Build info manual.
 .PHONY: info
 info: bin/$(_PROJECT).info
-bin/%.info $(foreach P,$(__INFOPARTS),bin/%.info-$(P)): doc/info/%.texinfo $(__TEXI_SRC)
+bin/%.info $(foreach P,$(__INFOPARTS),bin/%.info-$(P)): $(v)doc/info/%.texinfo $(__TEXI_SRC)
 	@$(PRINTF_INFO) '\e[00;01;31mTEXI\e[34m %s\e[00m$A\n' "$@"
 	@$(MKDIR) -p bin
 	$(Q)$(MAKEINFO) $< #$Z
@@ -136,47 +137,47 @@ bin/%.info $(foreach P,$(__INFOPARTS),bin/%.info-$(P)): doc/info/%.texinfo $(__T
 # Build DVI manual.
 .PHONY: dvi
 dvi: bin/$(_PROJECT).dvi
-bin/%.dvi: doc/info/%.texinfo $(__TEXI_SRC) $(foreach L,$(_LOGO),obj/$(L).eps)
+bin/%.dvi: $(v)doc/info/%.texinfo $(__TEXI_SRC) $(foreach L,$(_LOGO),aux/$(L).eps)
 	@$(PRINTF_INFO) '\e[00;01;31mTEXI\e[34m %s\e[00m$A\n' "$@"
-	@! $(TEST) -d obj/dvi/$* || $(RM) -rf obj/dvi/$*
-	@$(MKDIR) -p obj/dvi/$* bin
-	$(Q)cd obj/dvi/$* && $(TEXI2DVI) ../../../$< $(__TEXINFO_FLAGS) < /dev/null #$Z
+	@! $(TEST) -d aux/dvi/$* || $(RM) -rf aux/dvi/$*
+	@$(MKDIR) -p aux/dvi/$* bin
+	$(Q)cd aux/dvi/$* && $(TEXI2DVI) $(__back3unless_v)$< $(__TEXINFO_FLAGS) < /dev/null #$Z
 	@$(PRINTF_INFO) '$A'
-	$(Q)$(MV) obj/dvi/$*/$*.dvi $@ #$Z
+	$(Q)$(MV) aux/dvi/$*/$*.dvi $@ #$Z
 	@$(ECHO_EMPTY)
 
 # Build PDF manual.
 .PHONY: pdf
 pdf: bin/$(_PROJECT).pdf
-bin/%.pdf: doc/info/%.texinfo $(__TEXI_SRC) $(foreach L,$(_LOGO),obj/$(L).pdf)
+bin/%.pdf: $(v)doc/info/%.texinfo $(__TEXI_SRC) $(foreach L,$(_LOGO),aux/$(L).pdf)
 	@$(PRINTF_INFO) '\e[00;01;31mTEXI\e[34m %s\e[00m$A\n' "$@"
-	@! $(TEST) -d obj/pdf/$* || $(RM) -rf obj/pdf/$*
-	@$(MKDIR) -p obj/pdf/$* bin
-	$(Q)cd obj/pdf/$* && $(TEXI2PDF) ../../../$< $(__TEXINFO_FLAGS) < /dev/null #$Z
+	@! $(TEST) -d aux/pdf/$* || $(RM) -rf aux/pdf/$*
+	@$(MKDIR) -p aux/pdf/$* bin
+	$(Q)cd aux/pdf/$* && $(TEXI2PDF) $(__back3unless_v)$< $(__TEXINFO_FLAGS) < /dev/null #$Z
 	@$(PRINTF_INFO) '$A'
-	$(Q)$(MV) obj/pdf/$*/$*.pdf $@ #$Z
+	$(Q)$(MV) aux/pdf/$*/$*.pdf $@ #$Z
 	@$(ECHO_EMPTY)
 
 # Build PostScript manual.
 .PHONY: ps
 ps: bin/$(_PROJECT).ps
-bin/%.ps: doc/info/%.texinfo $(__TEXI_SRC) $(foreach L,$(_LOGO),obj/$(L).eps)
+bin/%.ps: $(v)doc/info/%.texinfo $(__TEXI_SRC) $(foreach L,$(_LOGO),aux/$(L).eps)
 	@$(PRINTF_INFO) '\e[00;01;31mTEXI\e[34m %s\e[00m$A\n' "$@"
-	@! $(TEST) -d obj/ps/$* || $(RM) -rf obj/ps/$*
-	@$(MKDIR) -p obj/ps/$* bin
-	$(Q)cd obj/ps/$* && $(TEXI2PS) ../../../$< $(__TEXINFO_FLAGS) < /dev/null #$Z
+	@! $(TEST) -d aux/ps/$* || $(RM) -rf aux/ps/$*
+	@$(MKDIR) -p aux/ps/$* bin
+	$(Q)cd aux/ps/$* && $(TEXI2PS) $(__back3unless_v)$< $(__TEXINFO_FLAGS) < /dev/null #$Z
 	@$(PRINTF_INFO) '$A'
-	$(Q)$(MV) obj/ps/$*/$*.ps $@ #$Z
+	$(Q)$(MV) aux/ps/$*/$*.ps $@ #$Z
 	@$(ECHO_EMPTY)
 
 # Build HTML manual.
 .PHONY: html
 html: bin/html/$(_PROJECT)/index.html
-bin/html/%/index.html: doc/info/%.texinfo $(__TEXI_SRC)
+bin/html/%/index.html: $(v)doc/info/%.texinfo $(__TEXI_SRC)
 	@$(PRINTF_INFO) '\e[00;01;31mTEXI\e[34m %s\e[00m$A\n' "$@"
 	@! $(TEST) -d bin/html/$* || $(RM) -rf bin/html/$*
 	@$(MKDIR) -p bin/html
-	$(Q)cd bin/html && $(MAKEINFO_HTML) ../../$< < /dev/null #$Z
+	$(Q)cd bin/html && $(MAKEINFO_HTML) $(__back2unless_v)$< < /dev/null #$Z
 	@$(ECHO_EMPTY)
 
 
@@ -187,8 +188,19 @@ bin/html/%/index.html: doc/info/%.texinfo $(__TEXI_SRC)
 install-info: bin/$(_PROJECT).info $(foreach P,$(__INFOPARTS),bin/%.info-$(P))
 	@$(PRINTF_INFO) '\e[00;01;31mINSTALL\e[34m %s\e[00m\n' "$@"
 	$(Q)$(INSTALL_DIR) -- "$(DESTDIR)$(INFODIR)"
-	$(Q)$(INSTALL_DATA) $< -- "$(DESTDIR)$(INFODIR)/$(PKGNAME).info"
+	$(Q)$(INSTALL_DATA) bin/$(_PROJECT).info -- "$(DESTDIR)$(INFODIR)/$(PKGNAME).info"
 	$(Q)$(forearch P,$(__INFOPARTS),$(INSTALL_DATA) bin/$*.info-$(P) -- "$(DESTDIR)$(INFODIR)/$(PKGNAME).info-$(P)" &&) $(TRUE)
+ifdef POST_INSTALL
+	$(POST_INSTALL)
+endif
+	$(Q)if $(SHELL) -c '$(N) $(INSTALL_INFO) --version' > /dev/null 2>&1; then  \
+	  $(N)$(z) $(INSTALL_INFO) -- "${DESTDIR}${INFODIR}/$(PKGNAME).info" "${DESTDIR}${INFODIR}/dir";  \
+	else  \
+	  $(TRUE);  \
+	fi
+ifdef POST_INSTALL
+	$(NORMAL_INSTALL)
+endif
 	@$(ECHO_EMPTY)
 
 # Install DVI manual.
@@ -196,7 +208,7 @@ install-info: bin/$(_PROJECT).info $(foreach P,$(__INFOPARTS),bin/%.info-$(P))
 install-dvi: bin/$(_PROJECT).dvi
 	@$(PRINTF_INFO) '\e[00;01;31mINSTALL\e[34m %s\e[00m\n' "$@"
 	$(Q)$(INSTALL_DIR) -- "$(DESTDIR)$(DVIDIR)"
-	$(Q)$(INSTALL_DATA) $< -- "$(DESTDIR)$(DVIDIR)/$(PKGNAME).dvi"
+	$(Q)$(INSTALL_DATA) $^ -- "$(DESTDIR)$(DVIDIR)/$(PKGNAME).dvi"
 	@$(ECHO_EMPTY)
 
 # Install PDF manual.
@@ -204,7 +216,7 @@ install-dvi: bin/$(_PROJECT).dvi
 install-pdf: bin/$(_PROJECT).pdf
 	@$(PRINTF_INFO) '\e[00;01;31mINSTALL\e[34m %s\e[00m\n' "$@"
 	$(Q)$(INSTALL_DIR) -- "$(DESTDIR)$(PDFDIR)"
-	$(Q)$(INSTALL_DATA) $< -- "$(DESTDIR)$(PDFDIR)/$(PKGNAME).pdf"
+	$(Q)$(INSTALL_DATA) $^ -- "$(DESTDIR)$(PDFDIR)/$(PKGNAME).pdf"
 	@$(ECHO_EMPTY)
 
 # Install PostScript manual.
@@ -212,15 +224,15 @@ install-pdf: bin/$(_PROJECT).pdf
 install-ps: bin/$(_PROJECT).ps
 	@$(PRINTF_INFO) '\e[00;01;31mINSTALL\e[34m %s\e[00m\n' "$@"
 	$(Q)$(INSTALL_DIR) -- "$(DESTDIR)$(PSDIR)"
-	$(Q)$(INSTALL_DATA) $< -- "$(DESTDIR)$(PSDIR)/$(PKGNAME).ps"
+	$(Q)$(INSTALL_DATA) $^ -- "$(DESTDIR)$(PSDIR)/$(PKGNAME).ps"
 	@$(ECHO_EMPTY)
 
 # Install HTML manual.
 .PHONY: install-html
 install-html: $(foreach F,$(_HTML_FILES),bin/html/$(_PROJECT)/$(F))
 	@$(PRINTF_INFO) '\e[00;01;31mINSTALL\e[34m %s\e[00m\n' "$@"
-	$(Q)$(INSTALL_DIR) -- "$(DESTDIR)$(HTMLDIR)/$(PKGNAME)/html"
-	$(Q)$(INSTALL_DATA) $^ -- "$(DESTDIR)$(HTMLDIR)/$(PKGNAME)/html/"
+	$(Q)$(INSTALL_DIR) -- "$(DESTDIR)$(HTMLDIR)/$(PKGNAME)"
+	$(Q)$(INSTALL_DATA) $^ -- "$(DESTDIR)$(HTMLDIR)/$(PKGNAME)/"
 	@$(ECHO_EMPTY)
 
 
@@ -229,6 +241,13 @@ install-html: $(foreach F,$(_HTML_FILES),bin/html/$(_PROJECT)/$(F))
 # Uninstall info manual.
 .PHONY: uninstall-info
 uninstall-info:
+ifdef PRE_UNINSTALL
+	$(PRE_UNINSTALL)
+endif
+	-$(Q)$(N)$(a) $(INSTALL_INFO) --delete -- "${DESTDIR}${INFODIR}/$(PKGNAME).info" "${DESTDIR}${INFODIR}/dir"
+ifdef PRE_UNINSTALL
+	$(NORMAL_UNINSTALL)
+endif
 	-$(Q)$(RM) -- "$(DESTDIR)$(INFODIR)/$(PKGNAME).info" $(forearch P,$(__INFOPARTS),"$(DESTDIR)$(INFODIR)/$(PKGNAME).info-$(P)")
 
 # Uninstall DVI manual.
@@ -249,8 +268,7 @@ uninstall-ps:
 # Uninstall HTML manual.
 .PHONY: uninstall-html
 uninstall-html:
-	-$(Q)$(RM) -- $(foreach F,$(_HTML_FILES),"$(DESTDIR)$(HTMLDIR)/$(PKGNAME)/html/$(F)")
-	-$(Q)$(RM) -- "$(DESTDIR)$(HTMLDIR)/$(PKGNAME)/html"
+	-$(Q)$(RM) -- $(foreach F,$(_HTML_FILES),"$(DESTDIR)$(HTMLDIR)/$(PKGNAME)/$(F)")
 	-$(Q)$(RM) -- "$(DESTDIR)$(HTMLDIR)/$(PKGNAME)"
 
 
diff --git a/mk/tools.mk b/mk/tools.mk
index 6793840..5801d4f 100644
--- a/mk/tools.mk
+++ b/mk/tools.mk
@@ -10,27 +10,70 @@
 
 
 # Part of GNU Coreutils:
-MKDIR ?= mkdir
+BASENAME ?= basename
+CHGRP ?= chgrp
+CHMOD ?= chmod
+CHOWN ?= chown
 CP ?= cp
+CPLIT ?= cplit
+CUT ?= cut
+DATE ?= date
+DIRNAME ?= dirname
+ECHO ?= echo
+ENV ?= env
+EXPAND ?= expand
+EXPR ?= expr
+FALS ?= false
+FMT ?= fmt
+FOLD ?= fold
+HEAD ?= head
+INSTALL ?= install
+INSTALL_DATA ?= $(INSTALL) -m644
+INSTALL_DIR ?= $(INSTALL) -dm755
+INSTALL_PROGRAM ?= $(INSTALL) -m755
+JOIN ?= join
+LN ?= ln
+MKDIR ?= mkdir
+MKFIFO ?= mkfifo
+MKNOD ?= mknod
 MV ?= mv
+NL ?= nl
+NPROC ?= nproc
+NUMFMT ?= numfmt
+OD ?= od
+PASTE ?= paste
+PATHCHK ?= pathchk
+PR ?= pr
+PRINTF ?= printf
+READLINK ?= readlink
+REALPATH ?= realpath
 RM ?= rm
 RMDIR ?= rmdir
-TRUE ?= true
-TEST ?= test
-TOUCH ?= touch
-ECHO ?= echo
-CUT ?= cut
+SEQ ?= seq
+SLEEP ?= sleep
+SORT ?= sort
+SPLIT ?= split
+STAT ?= stat
 TAC ?= tac
 TAIL ?= tail
-HEAD ?= head
-SORT ?= sort
+TEE ?= tee
+TEST ?= test
+TOUCH ?= touch
+TR ?= tr
+TRUE ?= true
+TRUNCATE ?= truncate
+TSORT ?= tsort
+UNAME ?= uname
+UNEXPAND ?= unexpand
 UNIQ ?= uniq
-PRINTF ?= printf
 WC ?= wc
-INSTALL ?= install
-INSTALL_PROGRAM ?= $(INSTALL) -m755
-INSTALL_DATA ?= $(INSTALL) -m644
-INSTALL_DIR ?= $(INSTALL) -dm755
+YES ?= yes
+
+# Part of GNU help2man:
+HELP2MAN ?= help2man
+
+# Part of GNU tar:
+TAR ?= tar
 
 # Part of GNU Findutils:
 FIND ?= find
@@ -38,6 +81,8 @@ XARGS ?= xargs
 
 # Part of GNU Grep:
 GREP ?= grep
+EGREP ?= egrep
+FGREP ?= fgrep
 
 # Part of GNU Sed:
 SED ?= sed
@@ -48,6 +93,7 @@ GPG ?= gpg
 # Part of Texinfo:
 MAKEINFO ?= makeinfo
 MAKEINFO_HTML ?= $(MAKEINFO) --html
+INSTALL_INFO ?= install-info
 
 # Part of Texlive-plainextra:
 TEXI2PDF ?= texi2pdf
@@ -62,9 +108,26 @@ RSVG_CONVERT ?= rsvg-convert
 SVG2PS ?= $(RSVG_CONVERT) --format=ps
 SVG2PDF ?= $(RSVG_CONVERT) --format=pdf
 
-# Part of GCC:
+# Part of GNU Compiler Collection:
 CC ?= cc
 CPP ?= cpp
+CXX ?= c++
+
+# Part of GNU Binutils:
+AR ?= ar
+LD ?= ld
+RANLIB ?= ranlib
+
+# Part of GNU Bison:
+BISON ?= bison
+YACC ?= yacc
+
+# Part of Flex:
+FLEX ?= FLEX
+LEX ?= lex
+
+# Part of GNU C Library:
+LDCONFIG ?= ldconfig
 
 # Part of GNU Gettext:
 XGETTEXT ?= xgettext