2 ## This file is part of the libserialport project.
4 ## Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
5 ## Copyright (C) 2013 Martin Ling <martin-libserialport@earth.li>
7 ## This program is free software: you can redistribute it and/or modify
8 ## it under the terms of the GNU Lesser General Public License as
9 ## published by the Free Software Foundation, either version 3 of the
10 ## License, or (at your option) any later version.
12 ## This program is distributed in the hope that it will be useful,
13 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
14 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 ## GNU General Public License for more details.
17 ## You should have received a copy of the GNU Lesser General Public License
18 ## along with this program. If not, see <http://www.gnu.org/licenses/>.
21 # We require at least autoconf 2.63 (AC_INIT format changed there).
24 # libserialport package version number (NOT the same as shared lib version!).
25 m4_define([sp_package_version_major], [0])
26 m4_define([sp_package_version_minor], [1])
27 m4_define([sp_package_version_micro], [1])
28 m4_define([sp_package_version], [sp_package_version_major.sp_package_version_minor.sp_package_version_micro])
30 AC_INIT([libserialport], [sp_package_version], [martin-libserialport@earth.li],
31 [libserialport], [http://sigrok.org/wiki/Libserialport])
32 AC_CONFIG_HEADERS([config.h])
33 AC_CONFIG_MACRO_DIR([autostuff])
34 AC_CONFIG_AUX_DIR([autostuff])
36 AH_BOTTOM([#if HAVE_STRUCT_TERMIOS_C_ISPEED && HAVE_STRUCT_TERMIOS_C_OSPEED
37 # define HAVE_TERMIOS_SPEED 1
39 #if HAVE_STRUCT_TERMIOS2_C_ISPEED && HAVE_STRUCT_TERMIOS2_C_OSPEED
40 # define HAVE_TERMIOS2_SPEED 1
43 # We require at least automake 1.11 (needed for 'silent rules').
44 AM_INIT_AUTOMAKE([1.11 -Wall -Werror no-define check-news])
45 AM_SILENT_RULES([yes])
46 m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
48 # Checks for programs.
53 ## SP_PROG_VERSION(program, sh-var)
54 ## Obtain the version of <program> and store it in <sh-var>.
55 AC_DEFUN([SP_PROG_VERSION],
57 m4_assert([$# >= 2])[]dnl
58 sp_prog_ver=`$1 --version 2>&AS_MESSAGE_LOG_FD | sed 1q 2>&AS_MESSAGE_LOG_FD`
59 AS_CASE([[$]?:$sp_prog_ver],
60 [[0:*[0-9].[0-9]*]], [$2=$sp_prog_ver],
64 SP_PROG_VERSION([$CC], [sp_cc_version])
69 AC_DEFINE([SP_PACKAGE_VERSION_MAJOR], [sp_package_version_major], [.])
70 AC_DEFINE([SP_PACKAGE_VERSION_MINOR], [sp_package_version_minor], [.])
71 AC_DEFINE([SP_PACKAGE_VERSION_MICRO], [sp_package_version_micro], [.])
72 AC_DEFINE([SP_PACKAGE_VERSION_STRING], ["sp_package_version"], [.])
73 AC_SUBST([SP_PACKAGE_VERSION], [sp_package_version])
75 # Library version for libserialport (NOT the same as the package version).
76 # Carefully read the libtool docs before updating these numbers!
77 # The algorithm for determining which number to change (and how) is nontrivial!
78 # http://www.gnu.org/software/libtool/manual/libtool.html#Updating-version-info
79 SP_LIB_VERSION_CURRENT=1
80 SP_LIB_VERSION_REVISION=0
82 AC_SUBST([SP_LIB_VERSION],
83 ["$SP_LIB_VERSION_CURRENT:$SP_LIB_VERSION_REVISION:$SP_LIB_VERSION_AGE"])
85 AC_DEFINE_UNQUOTED([SP_LIB_VERSION_CURRENT], [$SP_LIB_VERSION_CURRENT], [.])
86 AC_DEFINE_UNQUOTED([SP_LIB_VERSION_REVISION], [$SP_LIB_VERSION_REVISION], [.])
87 AC_DEFINE_UNQUOTED([SP_LIB_VERSION_AGE], [$SP_LIB_VERSION_AGE], [.])
88 AC_DEFINE_UNQUOTED([SP_LIB_VERSION_STRING], ["$SP_LIB_VERSION"], [.])
90 AM_CONDITIONAL([LINUX], [test -z "${host_os##linux*}" || test -z "${host_os##uclinux*}"])
91 AM_CONDITIONAL([WIN32], [test -z "${host_os##mingw*}"])
92 AM_CONDITIONAL([MACOSX], [test -z "${host_os##darwin*}"])
93 AM_CONDITIONAL([FREEBSD], [test -z "${host_os##freebsd*}"])
95 AM_COND_IF([WIN32], [SP_LIBS='-lsetupapi'], [SP_LIBS=])
98 AM_COND_IF([FREEBSD], [SP_PKGLIBS='libusb-2.0'], [SP_PKGLIBS=])
99 AC_SUBST([SP_PKGLIBS])
101 AM_COND_IF([MACOSX], [AC_CHECK_HEADER([IOKit/IOKitLib.h], [],
102 [AC_MSG_ERROR([IOKit/IOKitLib.h not found])])])
104 AS_CASE([$host_os], [linux*|darwin*|mingw*|freebsd*],, [
105 AC_DEFINE([NO_ENUMERATION], [1], [Enumeration is unsupported.])
106 AC_DEFINE([NO_PORT_METADATA], [1], [Port metadata is unavailable.])
111 # Define size_t if not defined as standard.
114 # Check for specific termios structures.
115 AC_CHECK_TYPES([struct termios2, struct termiox],,,
116 [[#include <linux/termios.h>]])
117 AC_CHECK_MEMBERS([struct termios.c_ispeed, struct termios.c_ospeed,
118 struct termios2.c_ispeed, struct termios2.c_ospeed],,,
119 [[#include <linux/termios.h>]])
121 # Check for the BOTHER definition, needed for setting arbitrary baud rates.
122 # We can't just #ifdef BOTHER in the code, because of the separation between
123 # code using libc headers and code using kernel termios.h headers.
124 AC_CHECK_DECLS([BOTHER],,, [[#include <linux/termios.h>]])
126 # Check for serial_struct.
127 AC_CHECK_TYPES([struct serial_struct],,, [[#include <linux/serial.h>]])
129 # Check for realpath().
130 AC_CHECK_FUNC([realpath], [AC_DEFINE(HAVE_REALPATH, 1, [realpath is available.])], [])
132 # Check for clock_gettime().
133 AC_CHECK_FUNC([clock_gettime],
134 [AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [clock_gettime is available.])], [])
136 AC_CACHE_CHECK([for visibility control], [sp_cv_visibility_control], [
137 sp_saved_CFLAGS=$CFLAGS
138 CFLAGS="$CFLAGS -Werror"
139 AC_COMPILE_IFELSE([AC_LANG_SOURCE(
140 [[__attribute__((visibility("hidden"))) void foo(void) {}]])],
141 [sp_cv_visibility_control=attribute],
142 [AC_COMPILE_IFELSE([AC_LANG_SOURCE(
143 [[__declspec(dllexport) void foo(void) {}]])],
144 [sp_cv_visibility_control=declspec],
145 [sp_cv_visibility_control=none])])
146 CFLAGS=$sp_saved_CFLAGS
148 AS_CASE([$sp_cv_visibility_control],
149 [attribute], [SP_API='__attribute__((visibility("default")))'
150 SP_PRIV='__attribute__((visibility("hidden")))'],
151 [declspec], [SP_API='__declspec(dllexport)' SP_PRIV=],
153 AC_DEFINE_UNQUOTED([SP_API], [$SP_API], [Macro preceding public API functions])
154 AC_DEFINE_UNQUOTED([SP_PRIV], [$SP_PRIV], [Macro preceding private functions])
156 AC_CONFIG_FILES([Makefile libserialport.pc])
160 cat >&AS_MESSAGE_FD <<_EOF
162 libserialport configuration summary:
164 - Package version................. $SP_PACKAGE_VERSION
165 - Library ABI version............. $SP_LIB_VERSION
166 - Prefix.......................... $prefix
167 - Building on..................... $build
168 - Building for.................... $host
169 - Building shared / static........ $enable_shared / $enable_static
171 Compile configuration:
172 - C compiler...................... $CC
173 - C compiler version.............. $sp_cc_version
174 - C compiler flags................ $CFLAGS
175 - Linker flags.................... $LDFLAGS