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configure.ac
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##
## This file is part of the libserialport project.
##
## Copyright (C) 2010-2012 Bert Vermeulen <[email protected]>
## Copyright (C) 2013 Martin Ling <[email protected]>
##
## 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], [2])
m4_define([sp_package_version_micro], [0])
m4_define([sp_package_version], [sp_package_version_major.sp_package_version_minor.sp_package_version_micro])
AC_INIT([libserialport], [sp_package_version], [[email protected]],
[libserialport], [http://sigrok.org/wiki/Libserialport])
AC_CONFIG_MACRO_DIR([autostuff])
AC_CONFIG_AUX_DIR([autostuff])
AC_CANONICAL_TARGET
# We require at least automake 1.11 (needed for 'silent rules').
AM_INIT_AUTOMAKE([1.11 -Wall -Werror check-news])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
# Enable more compiler warnings.
CFLAGS="$CFLAGS -std=c99 -Wall -Wextra -pedantic"
# Checks for programs.
AC_PROG_CC
AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_LN_S
# Initialize libtool.
LT_INIT
# Initialize pkg-config.
# We require at least 0.22, as "Requires.private" behaviour changed there.
PKG_PROG_PKG_CONFIG([0.22])
# Library version for libserialport (NOT the same as the package version).
# Carefully read the libtool docs before updating these numbers!
# The algorithm for determining which number to change (and how) is nontrivial!
# http://www.gnu.org/software/libtool/manual/libtool.html#Updating-version-info
SP_LIB_VERSION_CURRENT=0
SP_LIB_VERSION_REVISION=0
SP_LIB_VERSION_AGE=0
SP_LIB_VERSION="$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 libraries.
# This variable collects the pkg-config names of all detected libs.
# It is then used to construct the "Requires.private:" field in the
# libserialport.pc file.
SP_PKGLIBS=""
SP_LIBS=""
case $target_os in
*linux*)
AM_CONDITIONAL([LINUX], true)
AM_CONDITIONAL([WIN32], false)
AM_CONDITIONAL([MACOSX], false)
;;
*darwin*)
AM_CONDITIONAL([LINUX], false)
AM_CONDITIONAL([WIN32], false)
AM_CONDITIONAL([MACOSX], true)
LDFLAGS="$LDFLAGS -Wl,-framework -Wl,IOKit -Wl,-framework -Wl,CoreFoundation"
AC_CHECK_HEADER(IOKit/IOKitLib.h, [], [AC_MSG_ERROR([IOKit/IOKitLib.h not found])])
;;
mingw* | cygwin*)
AM_CONDITIONAL([LINUX], false)
AM_CONDITIONAL([WIN32], true)
AM_CONDITIONAL([MACOSX], false)
SP_LIBS="-lsetupapi -luuid"
;;
*)
AM_CONDITIONAL([LINUX], false)
AM_CONDITIONAL([WIN32], false)
AM_CONDITIONAL([MACOSX], false)
AC_DEFINE(NO_ENUMERATION)
AC_DEFINE(NO_PORT_METADATA)
esac
AC_SUBST(SP_PKGLIBS)
AC_SUBST(SP_LIBS)
# Define size_t if not defined as standard.
AC_TYPE_SIZE_T
# Check for specific termios structures.
AC_CHECK_TYPE([struct termios2], [AC_DEFINE(HAVE_TERMIOS2, 1)], [], [[#include <linux/termios.h>]])
AC_CHECK_TYPE([struct termiox], [AC_DEFINE(HAVE_TERMIOX, 1)], [], [[#include <linux/termios.h>]])
AC_CHECK_MEMBERS([struct termios.c_ispeed, struct termios.c_ospeed],
[AC_DEFINE(HAVE_TERMIOS_SPEED, 1)], [], [[#include <linux/termios.h>]])
AC_CHECK_MEMBERS([struct termios2.c_ispeed, struct termios2.c_ospeed],
[AC_DEFINE(HAVE_TERMIOS2_SPEED, 1)], [], [[#include <linux/termios.h>]])
# Check for the BOTHER definition, needed for setting arbitrary baud rates.
# We can't just #ifdef BOTHER in the code, because of the separation between
# code using libc headers and code using kernel termios.h headers.
AC_MSG_CHECKING(for BOTHER)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <linux/termios.h>
]],
[[
#ifndef BOTHER
#error BOTHER is not defined
#endif
]])],
[AC_DEFINE(HAVE_BOTHER, 1)
AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no])])
# Check for serial_struct.
AC_CHECK_TYPE([struct serial_struct], [AC_DEFINE(HAVE_SERIAL_STRUCT, 1)],
[], [[#include <linux/serial.h>]])
saved="$CFLAGS"; CFLAGS="$CFLAGS -Werror"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
__attribute__((visibility("hidden"))) void foo(void) { }
]])],
[AC_DEFINE(SP_API , __attribute__((visibility("default"))))]
[AC_DEFINE(SP_PRIV, __attribute__((visibility("hidden"))))],
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
__declspec(dllexport) void foo(void) { }
]])],
[AC_DEFINE(SP_API , __declspec(dllexport))]
[AC_DEFINE(SP_PRIV,)],
[AC_DEFINE(SP_API,)]
[AC_DEFINE(SP_PRIV,)]))
CFLAGS="$saved"
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_MICRO=sp_package_version_micro
SP_PACKAGE_VERSION=sp_package_version
AC_SUBST(SP_PACKAGE_VERSION_MAJOR)
AC_SUBST(SP_PACKAGE_VERSION_MINOR)
AC_SUBST(SP_PACKAGE_VERSION_MICRO)
AC_SUBST(SP_PACKAGE_VERSION)
AC_CONFIG_FILES([Makefile libserialport.h libserialport.pc])
AC_OUTPUT
echo
echo "libserialport configuration summary:"
echo
echo " - Package version (major.minor.micro): $SP_PACKAGE_VERSION"
echo " - Library version (current:revision:age): $SP_LIB_VERSION"
echo " - Prefix: $prefix"
echo " - Building on: $build"
echo " - Building for: $host"
echo