Add build system.

COPYING

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+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
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+other than an Application or a Combined Work as defined below.
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+Library.

Makefile.am

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+##
+## This file is part of the libserialport project.
+##
+## Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
+## Copyright (C) 2013 Martin Ling <martin-libserialport@earth.li>
+##
+## This program is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as
+## published by the Free Software Foundation, either version 3 of the
+## License, or (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## 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 Lesser General Public License
+## along with this program.  If not, see <http://www.gnu.org/licenses/>.
+##
+
+ACLOCAL_AMFLAGS = -I autostuff
+
+AM_CPPFLAGS = -I$(top_srcdir)
+
+lib_LTLIBRARIES = libserialport.la
+
+libserialport_la_SOURCES = serialport.c
+
+libserialport_la_LIBADD = $(LIBOBJS)
+
+libserialport_la_LDFLAGS = $(SP_LIB_LDFLAGS)
+
+library_includedir = $(includedir)
+library_include_HEADERS = serialport.h
+
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = libserialport.pc
+
+MAINTAINERCLEANFILES = ChangeLog
+
+.PHONY: ChangeLog
+ChangeLog:
+	git --git-dir $(top_srcdir)/.git log > ChangeLog || touch ChangeLog
+
+dist-hook: ChangeLog

autogen.sh

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+#!/bin/sh
+##
+## This file is part of the libserialport project.
+##
+## Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
+## Copyright (C) 2013 Martin Ling <martin-libserialport@earth.li>
+##
+## This program is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as
+## published by the Free Software Foundation, either version 3 of the
+## License, or (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## 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 Lesser General Public License
+## along with this program.  If not, see <http://www.gnu.org/licenses/>.
+##
+
+OS=`uname`
+
+LIBTOOLIZE=libtoolize
+ACLOCAL_DIR=
+
+if [ "x$OS" = "xDarwin" ]; then
+	LIBTOOLIZE=glibtoolize
+
+	if [ -d /sw/share/aclocal ]; then
+		# fink installs aclocal macros here
+		ACLOCAL_DIR="-I /sw/share/aclocal"
+	elif [ -d /opt/local/share/aclocal ]; then
+		# Macports installs aclocal macros here
+		ACLOCAL_DIR="-I /opt/local/share/aclocal"
+	elif [ -d /usr/local/share/aclocal ]; then
+		# Homebrew installs aclocal macros here
+		ACLOCAL_DIR="-I /usr/local/share/aclocal"
+	elif [ -d /usr/share/aclocal ]; then
+		# Xcode installs aclocal macros here
+		ACLOCAL_DIR="-I /usr/share/aclocal"
+	fi
+
+elif [ "x$OS" = "xMINGW32_NT-5.1" ]; then
+	# Windows XP
+	ACLOCAL_DIR="-I /usr/local/share/aclocal"
+elif [ "x$OS" = "xMINGW32_NT-6.0" ]; then
+	# Windows Vista
+	ACLOCAL_DIR="-I /usr/local/share/aclocal"
+elif [ "x$OS" = "xMINGW32_NT-6.1" ]; then
+	# Windows 7
+	ACLOCAL_DIR="-I /usr/local/share/aclocal"
+fi
+
+echo "Generating build system..."
+${LIBTOOLIZE} --install --copy --quiet || exit 1
+aclocal ${ACLOCAL_DIR} || exit 1
+automake --add-missing --copy || exit 1
+autoconf || exit 1
+

configure.ac

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+##
+## This file is part of the libserialport project.
+##
+## Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
+## Copyright (C) 2013 Martin Ling <martin-libserialport@earth.li>
+##
+## This program is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as
+## published by the Free Software Foundation, either version 3 of the
+## License, or (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## 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 Lesser General Public License
+## along with this program.  If not, see <http://www.gnu.org/licenses/>.
+##
+
+# We require at least autoconf 2.63 (AC_INIT format changed there).
+AC_PREREQ([2.63])
+
+# libserialport package version number (NOT the same as shared lib version!).
+m4_define([sp_package_version_major], [0])
+m4_define([sp_package_version_minor], [1])
+m4_define([sp_package_version], [sp_package_version_major.sp_package_version_minor])
+
+AC_INIT([libserialport], [sp_package_version], [martin-libserialport@earth.li],
+	[libserialport], [http://github.com/martinling/libserialport])
+AC_CONFIG_MACRO_DIR([autostuff])
+AC_CONFIG_AUX_DIR([autostuff])
+
+# We require at least automake 1.11 (needed for 'silent rules').
+AM_INIT_AUTOMAKE([1.11 -Wall -Werror])
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
+
+AH_TOP([#ifndef SP_CONFIG_H
+#define SP_CONFIG_H    /* To stop multiple inclusions. */])
+AH_BOTTOM([#endif /* SP_CONFIG_H */])
+
+# Enable more compiler warnings via -Wall and -Wextra.
+CFLAGS="$CFLAGS -Wall -Wextra"
+
+# Checks for programs.
+AC_PROG_CC
+AC_PROG_CPP
+AC_PROG_INSTALL
+AC_PROG_LN_S
+
+# Required for per-target flags or subdir-objects with C sources.
+AM_PROG_CC_C_O
+
+# Initialize libtool.
+LT_INIT
+
+# Initialize pkg-config.
+PKG_PROG_PKG_CONFIG([0.22])
+
+# Library version for libserialport (NOT the same as the package version).
+# Carefully read the libtool docs before updating these numbers!
+# The algorithm for determining which number to change (and how) is nontrivial!
+# http://www.gnu.org/software/libtool/manual/libtool.html#Updating-version-info
+SP_LIB_VERSION_CURRENT=0
+SP_LIB_VERSION_REVISION=0
+SP_LIB_VERSION_AGE=0
+SP_LIB_VERSION="$SP_LIB_VERSION_CURRENT:$SP_LIB_VERSION_REVISION:$SP_LIB_VERSION_AGE"
+SP_LIB_LDFLAGS="-version-info $SP_LIB_VERSION"
+AC_SUBST(SP_LIB_VERSION_CURRENT)
+AC_SUBST(SP_LIB_VERSION_REVISION)
+AC_SUBST(SP_LIB_VERSION_AGE)
+AC_SUBST(SP_LIB_VERSION)
+AC_SUBST(SP_LIB_LDFLAGS)
+
+# Checks for header files.
+# These are already checked: inttypes.h stdint.h stdlib.h string.h unistd.h.
+AC_CHECK_HEADERS([sys/types.h sys/stat.h fcntl.h termios.h sys/ioctl.h errno.h])
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_C_INLINE
+AC_TYPE_SIZE_T
+AC_TYPE_SSIZE_T
+
+# Checks for library functions.
+AC_CHECK_FUNCS([strerror])
+
+AC_SUBST(MAKEFLAGS, '--no-print-directory')
+AC_SUBST(AM_LIBTOOLFLAGS, '--silent')
+
+SP_PACKAGE_VERSION_MAJOR=sp_package_version_major
+SP_PACKAGE_VERSION_MINOR=sp_package_version_minor
+SP_PACKAGE_VERSION=sp_package_version
+
+AC_SUBST(SP_PACKAGE_VERSION_MAJOR)
+AC_SUBST(SP_PACKAGE_VERSION_MINOR)
+AC_SUBST(SP_PACKAGE_VERSION)
+
+AC_CONFIG_FILES([Makefile libserialport.pc])
+
+AC_OUTPUT
+
+echo
+echo "libserialport configuration summary:"
+echo
+echo "  - Package version (major.minor):    $SP_PACKAGE_VERSION"
+echo "  - Library version (current:revision:age): $SP_LIB_VERSION"
+echo "  - Prefix: $prefix"
+echo "  - Building on: $build"
+echo "  - Building for: $host"
+echo

libserialport.pc.in

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+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libserialport
+Description: Cross-platform serial port access library.
+URL: http://github.com/martinling/libserialport
+Version: @VERSION@
+Libs: -L${libdir} -lserialport
+Cflags: -I${includedir}