[4.2 PATCH]: Add --with-{gmp,mpfr}-{lib,include}, remove --with-{gmp,mpfr}-dir

["Kaveh R. GHAZI" <ghazi at caip dot rutgers dot edu>]

This is the 4.2 version of the following patch:
http://gcc.gnu.org/ml/gcc-patches/2006-11/msg01708.html

The difference is that the documentation for the configure flags stays in
a fortran subsection of the manual, since on that branch gmp/mpfr are only
used in that frontend.  Otherwise the configure.in bits apply cleanly from
the mainline version of the patch.

Tested on sparc-sun-solaris2.10, okay for 4.2?

		Thanks,
		--Kaveh

2006-11-21  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* configure.in (--with-mpfr-dir, --with-gmp-dir): Remove flags.
	(--with-mpfr-include, --with-mpfr-lib, --with-gmp-include,
	--with-gmp-lib): New flags.

	* configure: Regenerate.

gcc:
	* doc/install.texi: Remove documentation for --with-mpfr-dir
	and --with-gmp-dir, add documentation for --with-mpfr-include,
	--with-mpfr-lib, --with-gmp-include and --with-gmp-lib.

diff -rup orig/egcc-4.2-SVN20061124/configure.in egcc-4.2-SVN20061124/configure.in
--- orig/egcc-4.2-SVN20061124/configure.in	2006-11-19 20:09:32.000000000 -0500
+++ egcc-4.2-SVN20061124/configure.in	2006-11-26 17:58:52.412366940 -0500
@@ -1049,54 +1049,57 @@ ACX_PROG_GNAT
 ACX_PROG_CMP_IGNORE_INITIAL

 # Check for GMP and MPFR
-gmplibs=
+gmplibs="-lmpfr"
 gmpinc=
 have_gmp=yes
 # Specify a location for mpfr
 # check for this first so it ends up on the link line before gmp.
-AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
-
-if test "x$with_mpfr_dir" != x; then
-  gmpinc="-I$with_mpfr_dir"
-  if test -f "$with_mpfr_dir/.libs/libmpfr.a"; then
-    gmplibs="$with_mpfr_dir/.libs/libmpfr.a"
-  elif test -f "$with_mpfr_dir/_libs/libmpfr.a"; then
-    gmplibs="$with_mpfr_dir/_libs/libmpfr.a"
-  else
-    gmplibs="$with_mpfr_dir/libmpfr.a"
-  fi
-else
-  gmplibs="-lmpfr"
-fi
-
-AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
+AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    This option has been REMOVED],
+  AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
+Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH]))
+
+AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify prefix directory for installed MPFR package
+                          Equivalent to --with-mpfr-include=PATH/include
+                          plus --with-mpfr-lib=PATH/lib])
+AC_ARG_WITH(mpfr_include, [  --with-mpfr-include=PATH
+                          Specify directory for installed MPFR include files])
+AC_ARG_WITH(mpfr_lib, [  --with-mpfr-lib=PATH    Specify the directory for the installed MPFR library])

 if test "x$with_mpfr" != x; then
   gmplibs="-L$with_mpfr/lib $gmplibs"
   gmpinc="-I$with_mpfr/include"
 fi
+if test "x$with_mpfr_include" != x; then
+  gmpinc="-I$with_mpfr_include"
+fi
+if test "x$with_mpfr_lib" != x; then
+  gmplibs="-L$with_mpfr_lib $gmplibs"
+fi

 # Specify a location for gmp
-AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
+AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     This option has been REMOVED],
+  AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
+Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH]))
+
+gmplibs="$gmplibs -lgmp"
+
+AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify prefix directory for the installed GMP package
+                          Equivalent to --with-gmp-include=PATH/include
+                          plus --with-gmp-lib=PATH/lib])
+AC_ARG_WITH(gmp_include, [  --with-gmp-include=PATH Specify directory for installed GMP include files])
+AC_ARG_WITH(gmp_lib, [  --with-gmp-lib=PATH     Specify the directory for the installed GMP library])

-if test "x$with_gmp_dir" != x; then
-  gmpinc="$gmpinc -I$with_gmp_dir"
-  if test -f "$with_gmp_dir/.libs/libgmp.a"; then
-    gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
-  elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
-    gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
-  fi
-  # One of the later tests will catch the error if neither library is present.
-else
-  gmplibs="$gmplibs -lgmp"
-fi
-
-AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])

 if test "x$with_gmp" != x; then
   gmplibs="-L$with_gmp/lib $gmplibs"
   gmpinc="-I$with_gmp/include $gmpinc"
 fi
+if test "x$with_gmp_include" != x; then
+  gmpinc="-I$with_gmp_include $gmpinc"
+fi
+if test "x$with_gmp_lib" != x; then
+  gmplibs="-L$with_gmp_lib $gmplibs"
+fi

 saved_CFLAGS="$CFLAGS"
 CFLAGS="$CFLAGS $gmpinc"
diff -rup orig/egcc-4.2-SVN20061124/gcc/doc/install.texi egcc-4.2-SVN20061124/gcc/doc/install.texi
--- orig/egcc-4.2-SVN20061124/gcc/doc/install.texi	2006-11-02 20:09:04.000000000 -0500
+++ egcc-4.2-SVN20061124/gcc/doc/install.texi	2006-11-26 18:04:09.154137207 -0500
@@ -294,7 +294,8 @@ systems' @command{tar} programs will als

 Necessary to build the Fortran frontend.  If you do not have it
 installed in your library search path, you will have to configure with
-the @option{--with-gmp} or @option{--with-gmp-dir} configure option.
+the @option{--with-gmp} configure option.  See also
+@option{--with-gmp-lib} and @option{--with-gmp-include}.

 @item MPFR Library version 2.2 (or later)

@@ -305,8 +306,9 @@ to function with the buggy versions of M
 bugs that will not be fixed when using this version.  It is strongly
 recommended to upgrade to at least MPFR version 2.2.

-The @option{--with-mpfr} or @option{--with-mpfr-dir} configure option should
-be used if your MPFR Library is not installed in your library search path.
+The @option{--with-mpfr} configure option should be used if your MPFR
+Library is not installed in your default library search path.  See
+also @option{--with-mpfr-lib} and @option{--with-mpfr-include}.

 @item @command{jar}, or InfoZIP (@command{zip} and @command{unzip})

@@ -1381,15 +1383,24 @@ The following options apply to the build
 @table @code

 @item --with-gmp=@var{pathname}
+@itemx --with-gmp-include=@var{pathname}
+@itemx --with-gmp-lib=@var{pathname}
 @itemx --with-mpfr=@var{pathname}
-@itemx --with-gmp-dir=@var{pathname}
-@itemx --with-mpfr-dir=@var{pathname}
-If you don't have GMP (the GNU Multiple Precision library) and the MPFR
-Libraries installed in a standard location and you want to build the Fortran
-front-end, you can explicitly specify the directory where they are installed
-(@samp{--with-gmp=gmpinstalldir}, @samp{--with-mpfr=mpfrinstalldir}) or where
-you built them without installing (@samp{--with-gmp-dir=gmpbuilddir},
-@samp{--with-mpfr-dir=gmpbuilddir}).
+@itemx --with-mpfr-include=@var{pathname}
+@itemx --with-mpfr-lib=@var{pathname}
+If you do not have GMP (the GNU Multiple Precision library) and the
+MPFR Libraries installed in a standard location and you want to build
+the Fortran front-end, you can explicitly specify the directory where
+they are installed (@samp{--with-gmp=@var{gmpinstalldir}},
+@samp{--with-mpfr=@var{mpfrinstalldir}}).  The
+@option{--with-gmp=@var{gmpinstalldir}} option is shorthand for
+@option{--with-gmp-lib=@var{gmpinstalldir}/lib} and
+@option{--with-gmp-include=@var{gmpinstalldir}/include}.  Likewise the
+@option{--with-mpfr=@var{mpfrinstalldir}} option is shorthand for
+@option{--with-mpfr-lib=@var{mpfrinstalldir}/lib} and
+@option{--with-mpfr-include=@var{mpfrinstalldir}/include}.  If these
+shorthand assumptions are not correct, you can use the explicit
+include and lib options directly.

 @end table