Drop INSTALL from version control and move its content to README.

This makes it possible to run "autoreconf -vfi", which overwrites INSTALL.

* INSTALL: Delete file, and add content...
* README: ...here.
* .gitignore: Add INSTALL.

3 files changed, 106 insertions, 111 deletions

diff --git a/.gitignore b/.gitignore
index 342faad..fe2bd60 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,6 +19,7 @@ autom4te.cache
 config.h
 config.status
 configure
+INSTALL
 libtool
 stamp-h1
 /m4/libtool.m4
diff --git a/INSTALL b/INSTALL
deleted file mode 100644
index 72ab6e9..0000000
--- a/INSTALL
+++ /dev/null
@@ -1,110 +0,0 @@
-Copyright (C) INRIA 2003, 2005, 2007, 2008, 2009, 2010, 2011, 2012, 2014, 2015, 2018, 2020
-
-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.
-
-
-                        Installing GNU MPC
-                        ==================
-
-This is for the impatient, for deeper explanations see the chapter
-"Installing GNU MPC" in the Texinfo documentation (type 'info mpc.info').
-
-0. You first need to install GMP, the GNU Multiprecision Arithmetic Library,
-   see <http://gmplib.org/>, and GNU MPFR, see <http://www.mpfr.org>.
-   GNU MPC requires GMP version 5.0.0 or later
-   and GNU MPFR version 4.1.0 or later.
-
-1. In the directory of the GNU MPC archive, type
-
-      tar xzf mpc-1.2.0.tar.gz
-      cd mpc-1.2.0
-      ./configure
-      make
-
-   This assumes that GMP and GNU MPFR are installed in a directory searched
-   by default by the compiler. Otherwise, use --with-gmp=DIR or
-   --with-mpfr=DIR with ./configure (see the Texinfo documentation).
-
-2. You should run the test suite, type
-
-      make check
-
-   If any error occurs, please report it on the mailing list
-   <mpc-discuss@lists.gforge.inria.fr>, or file a bug at the bug tracker
-   <https://gforge.inria.fr/tracker/?atid=607&group_id=131&func=browse> .
-
-3. To install the GNU MPC library, type
-
-      make install
-
-   By default, the files are copied into subdirectories of /usr/local.
-   You need write permissions on these directories, or pass an alternative
-   installation directory using the --prefix option to ./configure.
-
-4. You can optionally create documentation, type
-
-      make dvi
-
-   or
-
-      make ps
-
-   This requires the Texinfo package (version 4.2 at least).
-
-In case of difficulties, please send a description of the problem to
-<mpc-discuss@lists.gforge.inria.fr>.
-
-##############################################################################
-
-Known problems:
-===============
-
-When LD_LIBRARY_PATH is set to various paths, it might confuse the configure
-script, even with --with-gmp and --with-mpfr options. Then try to unset
-LD_LIBRARY_PATH.
-
-##############################################################################
-
-Note for AIX users:
-===================
-
-If GMP was built with the 64-bit ABI, before building and testing GNU MPC,
-it might be necessary to set the OBJECT_MODE environment variable to 64
-by, e.g.,
-   export OBJECT_MODE=64
-This has been tested with the C compiler IBM XL C/C++ Enterprise Edition
-V8.0 for AIX, version: 08.00.0000.0021, GMP 4.2.4 and GNU MPFR 2.4.1.
-
-##############################################################################
-
-Note for Windows users:
-=======================
-
-There is a special file Makefile.vc for Windows, contributed by Mickaël
-Gastineau. This file works both for the Windows Server 2003 R2 Platform SDK,
-and for the Windows SDK of Vista. To use it, simply replace "make" by
-"nmake /f makefile.vc" in the above instructions:
-
-compilation :
-nmake /f makefile.vc GMP=<gmp_install_dir> MPFR=<mpfr_install_dir>
-
-clean :
-nmake /f makefile.vc GMP=<gmp_install_dir> MPFR=<mpfr_install_dir> clean
-
-check :
-nmake /f makefile.vc GMP=<gmp_install_dir> MPFR=<mpfr_install_dir> check
-
-If you want to compile mpc with mingw in the msys shell, you might need to
-add the following to the configure command (or in your environment):
-
-LDFLAGS=-L/usr/local/lib CPPFLAGS=-I/usr/local/include
-
-In addition, you might need to give the following additional argument to
-configure (reported for mpc-0.9):
-
-CPP="x86_64-w64-mingw32-gcc -E"
-
-(reported by Sisyphus)
diff --git a/README b/README
index 55369db..f850ef7 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-Copyright (C) INRIA 2003, 2005, 2008, 2009, 2011
+Copyright (C) INRIA 2003, 2005, 2007, 2008, 2009, 2010, 2011, 2012, 2014, 2015, 2018, 2020
 
 Copying and distribution of this file, with or without modification,
 are permitted in any medium without royalty provided the copyright
@@ -9,3 +9,107 @@ without any warranty.
 GNU MPC is a complex floating-point library with exact rounding.
 It is based on the GNU MPFR floating-point library (http://www.mpfr.org/),
 which is itself based on the GNU MP library (http://gmplib.org/).
+
+
+                        Installing GNU MPC
+                        ==================
+
+This is for the impatient, for deeper explanations see the chapter
+"Installing GNU MPC" in the Texinfo documentation (type 'info mpc.info').
+
+0. You first need to install GMP, the GNU Multiprecision Arithmetic Library,
+   see <http://gmplib.org/>, and GNU MPFR, see <http://www.mpfr.org>.
+   GNU MPC requires GMP version 5.0.0 or later
+   and GNU MPFR version 4.1.0 or later.
+
+1. In the directory of the GNU MPC archive, type
+
+      tar xzf mpc-1.2.0.tar.gz
+      cd mpc-1.2.0
+      ./configure
+      make
+
+   This assumes that GMP and GNU MPFR are installed in a directory searched
+   by default by the compiler. Otherwise, use --with-gmp=DIR or
+   --with-mpfr=DIR with ./configure (see the Texinfo documentation).
+
+2. You should run the test suite, type
+
+      make check
+
+   If any error occurs, please report it on the mailing list
+   <mpc-discuss@lists.gforge.inria.fr>, or file a bug at the bug tracker
+   <https://gforge.inria.fr/tracker/?atid=607&group_id=131&func=browse> .
+
+3. To install the GNU MPC library, type
+
+      make install
+
+   By default, the files are copied into subdirectories of /usr/local.
+   You need write permissions on these directories, or pass an alternative
+   installation directory using the --prefix option to ./configure.
+
+4. You can optionally create documentation, type
+
+      make dvi
+
+   or
+
+      make ps
+
+   This requires the Texinfo package (version 4.2 at least).
+
+In case of difficulties, please send a description of the problem to
+<mpc-discuss@lists.gforge.inria.fr>.
+
+##############################################################################
+
+Known problems:
+===============
+
+When LD_LIBRARY_PATH is set to various paths, it might confuse the configure
+script, even with --with-gmp and --with-mpfr options. Then try to unset
+LD_LIBRARY_PATH.
+
+##############################################################################
+
+Note for AIX users:
+===================
+
+If GMP was built with the 64-bit ABI, before building and testing GNU MPC,
+it might be necessary to set the OBJECT_MODE environment variable to 64
+by, e.g.,
+   export OBJECT_MODE=64
+This has been tested with the C compiler IBM XL C/C++ Enterprise Edition
+V8.0 for AIX, version: 08.00.0000.0021, GMP 4.2.4 and GNU MPFR 2.4.1.
+
+##############################################################################
+
+Note for Windows users:
+=======================
+
+There is a special file Makefile.vc for Windows, contributed by Mickaël
+Gastineau. This file works both for the Windows Server 2003 R2 Platform SDK,
+and for the Windows SDK of Vista. To use it, simply replace "make" by
+"nmake /f makefile.vc" in the above instructions:
+
+compilation :
+nmake /f makefile.vc GMP=<gmp_install_dir> MPFR=<mpfr_install_dir>
+
+clean :
+nmake /f makefile.vc GMP=<gmp_install_dir> MPFR=<mpfr_install_dir> clean
+
+check :
+nmake /f makefile.vc GMP=<gmp_install_dir> MPFR=<mpfr_install_dir> check
+
+If you want to compile mpc with mingw in the msys shell, you might need to
+add the following to the configure command (or in your environment):
+
+LDFLAGS=-L/usr/local/lib CPPFLAGS=-I/usr/local/include
+
+In addition, you might need to give the following additional argument to
+configure (reported for mpc-0.9):
+
+CPP="x86_64-w64-mingw32-gcc -E"
+
+(reported by Sisyphus)