diff --git a/README-hacking b/README-hacking
index 9a0e1b2..44cb75b 100644
--- a/README-hacking
+++ b/README-hacking
@@ -1,40 +1,47 @@
--*- outline -*-
+Building from a Git repository -*- outline -*-
These notes intend to help people working on the checked-out sources.
These requirements do not apply when building from a distribution tarball.
+If this package has a file HACKING, please also read that file for
+more detailed contribution guidelines.
* Requirements
-We've opted to keep only the highest-level sources in the GIT repository.
-This eases our maintenance burden, (fewer merges etc.), but imposes more
+We've opted to keep only the highest-level sources in the Git repository.
+This eases our maintenance burden (fewer merges etc.), but imposes more
requirements on anyone wishing to build from the just-checked-out sources.
-For example, you have to use the latest stable versions of the maintainer
-tools we depend upon, including:
-
-- Automake
-- Autoconf
-- Gettext
-- Gzip
-- M4
-- Tar
-- Wget
+(The requirements to build from a release are much less and are just
+the requirements of the standard './configure && make' procedure.)
+Specific development tools and versions will be checked for and listed by
+the bootstrap script. See README-prereq for specific notes on obtaining
+these prerequisite tools.
Valgrind is also highly recommended, if
-Valgrind supports your architecture.
+Valgrind supports your architecture. See also README-valgrind
+(if present).
While building from a just-cloned source tree may require installing a
-few prerequisites, later, a plain `git pull && make' should be sufficient.
+few prerequisites, later, a plain 'git pull && make' typically suffices.
-* First GIT checkout
+* First Git checkout
You can get a copy of the source repository like this:
- $ git clone git://git.sv.gnu.org/patch
- $ cd patch
+ $ git clone git://git.sv.gnu.org/
+ $ cd
-As an optional step, if you already have a copy of the gnulib git
-repository on your hard drive, then you can use it as a reference to
-reduce download time and disk space requirements:
+where '' stands for 'coreutils' or whatever other package
+you are building.
+
+To use the most-recent Gnulib (as opposed to the Gnulib version that
+the package last synchronized to), do this next:
+
+ $ git submodule foreach git pull origin master
+ $ git commit -m 'build: update gnulib submodule to latest' gnulib
+
+As an optional step, if you already have a copy of the Gnulib Git
+repository, then you can use it as a reference to reduce download
+time and file system space requirements:
$ export GNULIB_SRCDIR=/path/to/gnulib
@@ -43,20 +50,14 @@ which are extracted from other source packages:
$ ./bootstrap
-To use the most-recent gnulib (as opposed to the gnulib version that
-the package last synchronized to), do this next:
-
- $ git submodule foreach git pull origin master
- $ git commit -m 'build: update gnulib submodule to latest' gnulib
-
And there you are! Just
- $ ./configure --quiet
+ $ ./configure --quiet #[--disable-gcc-warnings] [*]
$ make
$ make check
At this point, there should be no difference between your local copy,
-and the GIT master copy:
+and the Git master copy:
$ git diff
@@ -64,22 +65,34 @@ should output no difference.
Enjoy!
+[*] By default GCC warnings are enabled when building from Git.
+If you get warnings with recent GCC and Glibc with default
+configure-time options, please report the warnings to the bug
+reporting address of this package instead of to bug-gnulib,
+even if the problem seems to originate in a Gnulib-provided file.
+If you get warnings with other configurations, you can run
+'./configure --disable-gcc-warnings' or 'make WERROR_CFLAGS='
+to build quietly or verbosely, respectively.
+-----
+
* Submitting patches
If you develop a fix or a new feature, please send it to the
appropriate bug-reporting address as reported by the --help option of
each program. One way to do this is to use vc-dwim
-), as follows.
+), as follows.
- Run the command "vc-dwim --help", copy its definition of the
- "git-changelog-symlink-init" function into your shell, and then run
- this function at the top-level directory of the package.
+ Run the command "vc-dwim --initialize" from the top-level directory
+ of this package's git-cloned hierarchy.
- Edit the ChangeLog file that this command creates, creating a
+ Edit the (empty) ChangeLog file that this command creates, creating a
properly-formatted entry according to the GNU coding standards
- .
+ .
- Run the command "vc-dwim" and make sure its output looks good.
+ Make your changes.
+
+ Run the command "vc-dwim" and make sure its output (the diff of all
+ your changes) looks good.
Run "vc-dwim --commit".
@@ -88,7 +101,7 @@ each program. One way to do this is to use vc-dwim
-----
-Copyright (C) 2002-2007, 2009-2012 Free Software Foundation, Inc.
+Copyright (C) 2002-2021 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
@@ -101,4 +114,4 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with this program. If not, see .
+along with this program. If not, see .
diff --git a/README-prereq b/README-prereq
new file mode 100644
index 0000000..913441b
--- /dev/null
+++ b/README-prereq
@@ -0,0 +1,36 @@
+This gives some notes on obtaining the tools required for development.
+These tools can be used by the 'bootstrap' and 'configure' scripts,
+as well as by 'make'. They include:
+
+- Autoconf
+- Automake
+- Git
+- Gzip
+- M4
+- Make
+- Tar
+- Texinfo
+- Wget
+- XZ Utils
+
+It is generally better to use official packages for your system.
+If a package is not officially available you can build it from source
+and install it into a directory that you can then use to build this
+package. If some packages are available but are too old, install the
+too-old versions first as they may be needed to build newer versions.
+
+Here is an example of how to build a program from source. This
+example is for Autoconf; a similar approach should work for the other
+developer prerequisites. This example assumes Autoconf 2.71; it
+should be OK to use a later version of Autoconf, if available.
+
+ prefix=$HOME/prefix # (or wherever else you choose)
+ export PATH=$prefix/bin:$PATH
+ wget https://ftp.gnu.org/pub/gnu/autoconf/autoconf-2.71.tar.gz
+ gzip -d