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# CDDL HEADER START
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# The contents of this file are subject to the terms of the
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# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
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# ident	"%Z%%M%	%I%	%E% SMI"
#
 
# 
# buildksh93.readme
#

* Intro:
"buildksh93.ksh" is a small build script used to build the AT&T "ast-ksh"
and "ast-open" packages using its native (nmake-based) build system
which is needed to build the iffe-generated (header) files (each time
for { 32bit SPARC, 64bit SPARC, 32bit i386, 64bit AMD64 }) which are
moved later to their matching OS/Net build directories.


* Note that buildksh93.ksh modifies the build behaviour of the AST build
system, including enforcing C99/XPG6 semantics (which is MANDATORY!!)
and feeding additional libraries (like libnsl, libsocket, librt etc.)
to the feature look system (called "iffe" (="if feature exists")) to
ensure all features needed for the Solaris version of ksh93 are
properly found.


* Example usage of the script (more information can be found in the
script itself):
## Download AT&T ksh93 sources
$ wget --http-user="I accept www.opensource.org/licenses/cpl" --http-passwd="." 'http://www.research.att.com/sw/download/beta/INIT.2007-04-18.tgz'
$ wget --http-user="I accept www.opensource.org/licenses/cpl" --http-passwd="." 'http://www.research.att.com/sw/download/beta/ast-ksh.2007-04-18.tgz'

## Unpack the sources (32bit SPARC):
$ mkdir build32_sparc
$ cd build32_sparc
$ gunzip -c ../INIT.2007-03-28.tgz | tar -xf -
$ gunzip -c ../ast-ksh.2007-03-28.tgz | tar -xf -

## Build ast-ksh for 32bit SPARC (build other build flags are:
# - "build.solaris.sparc.32bit.suncc" - 32bit SPARC
# - "build.solaris.sparc.64bit.suncc" - 64bit SPARC
# - "build.solaris.i386.32bit.suncc"  - 32bit x86/i386
# - "build.solaris.i386.64bit.suncc"  - 64bit x86/AMD64
# )
$ time nice ksh ../buildksh93.ksh "build.solaris.sparc.32bit.suncc" 2>&1 | tee -a buildlog.log

## Test ksh93
$ time nice ksh ../buildksh93.ksh "testshell" 2>&1 | tee -a buildlog.log

## Generated binaries and headers can be found in the arch/$(PLATFORM)/
## subdirectory.


# EOF.