* Makefile.shared: New file.

	* libc/sys/linux/shared.ld: New file.
	* libm/machine/*: New files.
	* libm/machine/i386/*: New files.
	* Makefile.am: Add libtool support.  Change math and mathfp
	references to variables.
	* configure.host: Add variables for libtool support.  Add
	libm_machine_dir variable.
	* configure.in: Add objectlist variables, for libtool
	support.  Add CC_FOR_BUILD tests.
	* libc/Makefile.am: Add libtool support.  Change crt0.o
	reference to be a variable reference.
	* libc/configure.in: Add libtool support.  Change sublib
	names to be lib${subdir}.la when using libtool.
	* libc/ctype/Makefile.am: Add libtool support.
	* libc/errno/Makefile.am: Likewise.
	* libc/locale/Makefile.am: Likewise.
	* libc/machine/Makefile.am: Likewise.
	* libc/machine/configure.in: Likewise.
	* libc/machine/i386/Makefile.am: Likewise.
	* libc/machine/i386/configure.in: Likewise.
	* libc/misc/Makefile.am: Likewise.
	* libc/posix/Makefile.am: Likewise.
	* libc/reent/Makefile.am: Likewise.
	* libc/signal/Makefile.am: Likewise.
	* libc/stdio/Makefile.am: Likewise.
	* libc/stdlib/Makefile.am: Likewise.
	* libc/string/Makefile.am: Likewise.
	* libc/sys/Makefile.am: Likewise.
	* libc/sys/configure.in: Likewise.
	* libc/sys/linux/Makefile.am: Add libtool support.  Change
	awk reference to a variable reference.  Change signal.h
	reference to a variable reference.
	* libc/sys/linux/configure.in: Add libtool support.
	* libc/syscalls/Makefile.am: Likewise.
	* libc/time/Makefile.am: Likewise.
	* libc/unix/Makefile.am: Likewise.
	* libm/Makefile.am: Add libtool support.  Change math and
	mathfp references to variables.
	* libm/configure.in: Add libtool support.  Add
	LIBM_MACHINE_LIB variable.
	* libm/common/Makefile.am: Add libtool support.
	* libm/math/Makefile.am: Likewise.
	* libm/mathfp/Makefile.am: Likewise.
	Regenerate all Makefile.in, aclocal.m4, and configure.

1 files changed, 42 insertions, 9 deletions

diff --git a/newlib/README b/newlib/README
index bfc6ee292..e07d29b9c 100644
--- a/newlib/README
+++ b/newlib/README
@@ -1,4 +1,4 @@
-                        README for newlib-1.9.0 release
+                        README for newlib-1.10.0 release
            (mostly cribbed from the README in the gdb-4.13 release)
 
 This is `newlib', a simple ANSI C library, math library, and collection
@@ -17,8 +17,8 @@ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 Unpacking and Installation -- quick overview
 ==========================
 
-When you unpack the newlib-1.9.0.tar.gz file, you'll find a directory
-called `newlib-1.9.0', which contains:
+When you unpack the newlib-1.10.0.tar.gz file, you'll find a directory
+called `newlib-1.10.0', which contains:
 
 COPYING          config/          install-sh*      mpw-configure
 COPYING.LIB      config-ml.in     libgloss/        mpw-install
@@ -94,13 +94,13 @@ directory.  If the path to `configure' would be the same as the
 argument to `--srcdir', you can leave out the `--srcdir' option; it
 will be assumed.)
 
-   For example, with version 1.9.0, you can build NEWLIB in a separate
+   For example, with version 1.10.0, you can build NEWLIB in a separate
 directory for a Sun 4 cross m68k-aout environment like this:
 
-     cd newlib-1.9.0
+     cd newlib-1.10.0
      mkdir ../newlib-m68k-aout
      cd ../newlib-m68k-aout
-     ../newlib-1.9.0/configure --host=sun4 --target=m68k-aout
+     ../newlib-1.10.0/configure --host=sun4 --target=m68k-aout
      make
 
    When `configure' builds a configuration using a remote source
@@ -116,8 +116,8 @@ called `configure' (or one of its subdirectories).
 
    The `Makefile' that `configure' generates in each source directory
 also runs recursively.  If you type `make' in a source directory such
-as `newlib-1.9.0' (or in a separate configured directory configured with
-`--srcdir=PATH/newlib-1.9.0'), you will build all the required libraries.
+as `newlib-1.10.0' (or in a separate configured directory configured with
+`--srcdir=PATH/newlib-1.10.0'), you will build all the required libraries.
 
    When you have multiple hosts or targets configured in separate
 directories, you can run `make' on them in parallel (for example, if
@@ -214,13 +214,46 @@ prefer; but you may abbreviate option names if you use `--'.
      There is no convenient way to generate a list of all available
      hosts.
 
+Shared newlib
+=============
+
+newlib now uses libtool when it is being compiled natively (with
+--target=i[3456]86-pc-linux-gnu) on an i[3456]86-pc-linux-gnu host. This
+allows newlib to be compiled as a shared library.
+
+To configure newlib, do the following from your build directory:
+
+$(source_dir)/src/configure --with-newlib --prefix=$(install_dir)
+
+configure will recognize that host == target ==
+i[3456]86-pc-linux-gnu, so it will tell newlib to compile itself using
+libtool. By default, libtool will build shared and static versions of
+newlib.
+
+To compile a program against shared newlib, do the following (where
+target_install_dir = $(install_dir)/i[3456]86-pc-linux-gnu):
+
+gcc -nostdlib $(target_install_dir)/lib/crt0.o progname.c -I $(target_install_dir)/include -L $(target_install_dir)/lib -lc -lm -lgcc
+
+To run the program, make sure that $(target_install_dir)/lib is listed
+in the LD_LIBRARY_PATH environment variable.
+
+To create a static binary linked against newlib, do the following:
+
+gcc -nostdlib -static $(target_install_dir)/lib/crt0.o progname.c -I $(target_install_dir)/include -L $(target_install_dir)/lib -lc -lm
+
+libtool can be instructed to produce only static libraries. To build
+newlib as a static library only, do the following from your build
+directory:
+
+$(source_dir)/src/configure --with-newlib --prefix=$(install_dir) --disable-shared
 
 Reporting Bugs
 ==============
 
 The correct address for reporting bugs found in NEWLIB is
 "newlib@sources.redhat.com".  Please email all bug reports to that
-address.  Please include the NEWLIB version number (e.g., newlib-1.9.0),
+address.  Please include the NEWLIB version number (e.g., newlib-1.10.0),
 and how you configured it (e.g., "sun4 host and m68k-aout target").
 Since NEWLIB supports many different configurations, it is important
 that you be precise about this.