build: Build and install libtextstyle.

* autogen.sh: Recurse into libtextstyle directory.
* configure.ac: Likewise.
* Makefile.am (SUBDIRS): Add libtextstyle.
* DEPENDENCIES: Mention that libiconv and ncurses are also used by libtextstyle.
* PACKAGING: Recommend to ship libtextstyle as a third binary package.
* NEWS: Mention that libtextstyle is installed.

7 files changed, 49 insertions, 15 deletions

diff --git a/Admin/release-steps b/Admin/release-steps
index 7ab6bd13b..ad510f65c 100644
--- a/Admin/release-steps
+++ b/Admin/release-steps
@@ -10,9 +10,9 @@ We assume that the following environment variables are set:
 
 ** Update 'gnulib' git submodule:
 
-    git submodule foreach git pull origin master
+    ./gitsub.sh upgrade
     git add gnulib
-    git commit -m 'Update gnulib'
+    git commit -m 'Update to newest gnulib'
 
 ** Run these commands, in this order:
 
diff --git a/DEPENDENCIES b/DEPENDENCIES
index 64d37420d..0961ccf7b 100644
--- a/DEPENDENCIES
+++ b/DEPENDENCIES
@@ -7,7 +7,8 @@ The following packages should be installed before GNU gettext is installed
       - MacOS X 10.3 or newer, or
       - NetBSD 3.0 or newer.
     But highly recommended on all other systems.
-    Needed for character set conversion of PO files from/to Unicode.
+    Needed for character set conversion of PO files from/to Unicode
+    and for the iconv_ostream class of libtextstyle.
   + Homepage:
     https://www.gnu.org/software/libiconv/
   + Download:
@@ -18,7 +19,8 @@ The following packages should be installed before GNU gettext is installed
 * GNU ncurses (preferred)
   or libtermcap (discouraged) or a curses library (legacy).
   + Highly recommended.
-    Needed for the --color option of the 'msgcat' program.
+    Needed for styling of terminal output (libtextstyle and the --color
+    option of the 'msgcat' program).
   + Homepage:
     https://www.gnu.org/software/ncurses/
   + Download:
diff --git a/Makefile.am b/Makefile.am
index 5ae0bf157..97f4b8a4e 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,5 +1,5 @@
 ## Makefile for the toplevel directory of GNU gettext
-## Copyright (C) 1995-2018 Free Software Foundation, Inc.
+## Copyright (C) 1995-2019 Free Software Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
@@ -19,7 +19,7 @@
 AUTOMAKE_OPTIONS = 1.5 gnu no-dependencies
 ACLOCAL_AMFLAGS = -I m4
 
-SUBDIRS = gnulib-local gettext-runtime gettext-tools
+SUBDIRS = gnulib-local gettext-runtime libtextstyle gettext-tools
 
 changelog_etc = \
   gettext-runtime/ChangeLog.0 \
diff --git a/NEWS b/NEWS
index a844a6f0b..032ff69f9 100644
--- a/NEWS
+++ b/NEWS
@@ -59,6 +59,12 @@
     compliant.  There is no conflict any more between these replacements
     and other possible replacements provided by gnulib or mingw.
 
+* Libtextstyle:
+  - This package installs a new library 'libtextstyle', together with a new
+    header file <textstyle.h>.  It is a library for styling text output sent
+    to a console or terminal emulator.
+    Packagers: please see the suggested packaging hints in the file PACKAGING.
+
 Version 0.19.8 - June 2016
 
 * Support for reproducible builds:
diff --git a/PACKAGING b/PACKAGING
index 13fa64b9a..a8ce979f9 100644
--- a/PACKAGING
+++ b/PACKAGING
@@ -3,12 +3,17 @@ Packaging hints for binary package distributors
 
 Although the source of the gettext package comes as a single package,
 I recommend that in distributions of binary packages the installed files
-be split into two packages:
+be split into three packages:
 
    gettext-runtime
         Contents: Runtime libraries and programs.
         Audience: Anyone who wants to run internationalized programs.
 
+   libtextstyle
+        Contents: Text styling library.
+        Audience: Anyone who wants to run or develop programs that produce
+                  styled text, to be displayed in a terminal emulator.
+
    gettext-tools
         Contents: Tools and documentation for developers and translators.
         Audience: Anyone who wants to develop or localize internationalized
@@ -27,6 +32,13 @@ The 'gettext-runtime' binary package can be installed by doing
       make
       make install
 
+The 'libtextstyle' binary package can be installed by doing
+
+      cd libtextstyle
+      ./configure
+      make
+      make install
+
 The 'gettext-tools' binary package can be installed by doing
 
       cd gettext-tools
@@ -34,15 +46,15 @@ The 'gettext-tools' binary package can be installed by doing
       make
       make install
 
-If you want to install both at the same time, you simply do at the toplevel
-directory:
+If you want to install all three at the same time, you simply do at the
+top-level directory:
 
       ./configure
       make
       make install
 
-The precise split between gettext and gettext-tools is according to the
-following file list.
+The precise split between gettext-runtime, libtextstyle, and gettext-tools
+is according to the following file list.
 
    gettext-runtime
 
@@ -77,6 +89,14 @@ following file list.
       $prefix/share/doc/libasprintf/autosprintf*.html
       $prefix/share/info/autosprintf.info
 
+   libtextstyle
+
+      $prefix/lib/libtextstyle.*
+      $prefix/include/textstyle.h
+      $prefix/include/textstyle/*
+      $prefix/share/doc/libtextstyle/libtextstyle*.html
+      $prefix/share/info/libtextstyle.info
+
    gettext-tools
 
       Everything else, i.e. currently:
diff --git a/autogen.sh b/autogen.sh
index 4c04f7f32..1642793f5 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -36,10 +36,11 @@
 (unset CDPATH) >/dev/null 2>&1 && unset CDPATH
 
 skip_gnulib=false
+skip_gnulib_option=
 
 while :; do
   case "$1" in
-    --skip-gnulib) skip_gnulib=true; shift;;
+    --skip-gnulib) skip_gnulib=true; skip_gnulib_option='--skip-gnulib'; shift;;
     *) break ;;
   esac
 done
@@ -412,6 +413,11 @@ aclocal -I m4 -I ../m4 -I gnulib-m4 \
   || exit $?
 cd "$dir0"
 
+echo "$0: generating files in libtextstyle..."
+cd libtextstyle
+./autogen.sh $skip_gnulib_option || exit $?
+cd "$dir0"
+
 echo "$0: generating configure in gettext-tools/examples..."
 cd gettext-tools/examples
 aclocal -I ../../gettext-runtime/m4 -I ../../m4 \
diff --git a/configure.ac b/configure.ac
index 64e5a13a3..d1f119e2c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 dnl Configuration for the toplevel directory of GNU gettext
-dnl Copyright (C) 1995-2018 Free Software Foundation, Inc.
+dnl Copyright (C) 1995-2019 Free Software Foundation, Inc.
 dnl
 dnl This program is free software: you can redistribute it and/or modify
 dnl it under the terms of the GNU General Public License as published by
@@ -37,7 +37,7 @@ dnl Checks for typedefs, structures, and compiler characteristics.
 
 dnl Checks for library functions.
 
-AC_CONFIG_SUBDIRS([gettext-runtime gettext-tools])
+AC_CONFIG_SUBDIRS([gettext-runtime libtextstyle gettext-tools])
 
 AM_EXTRA_RECURSIVE_TARGETS([maintainer-update-po])
 
@@ -49,7 +49,7 @@ AC_CANONICAL_HOST
 dnl Optional Features: AC_ARG_ENABLE calls
 dnl Optional Packages: AC_ARG_WITH calls
 dnl Some influential environment variables: AC_ARG_VAR calls
-esyscmd([{ cd gettext-runtime && autoconf --trace=AC_ARG_ENABLE:'$n([$1],[$2])' --trace=AC_ARG_WITH:'$n([$1],[$2])' --trace=AC_ARG_VAR:'$n($@)' && cd ..; cd gettext-tools && autoconf --trace=AC_ARG_ENABLE:'$n([$1],[$2])' --trace=AC_ARG_WITH:'$n([$1],[$2])' --trace=AC_ARG_VAR:'$n($@)' && cd ..; } | sed -f build-aux/ac-help.sed ])
+esyscmd([{ cd gettext-runtime && autoconf --trace=AC_ARG_ENABLE:'$n([$1],[$2])' --trace=AC_ARG_WITH:'$n([$1],[$2])' --trace=AC_ARG_VAR:'$n($@)' && cd ..; cd libtextstyle && autoconf --trace=AC_ARG_ENABLE:'$n([$1],[$2])' --trace=AC_ARG_WITH:'$n([$1],[$2])' --trace=AC_ARG_VAR:'$n($@)' && cd ..; cd gettext-tools && autoconf --trace=AC_ARG_ENABLE:'$n([$1],[$2])' --trace=AC_ARG_WITH:'$n([$1],[$2])' --trace=AC_ARG_VAR:'$n($@)' && cd ..; } | sed -f build-aux/ac-help.sed ])
 
 AC_CONFIG_FILES([Makefile])