[libserialport.git] / configure.ac

##
## 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_micro], [1])
m4_define([sp_package_version], [sp_package_version_major.sp_package_version_minor.sp_package_version_micro])

AC_INIT([libserialport], [sp_package_version], [martin-libserialport@earth.li],
	[libserialport], [http://sigrok.org/wiki/Libserialport])
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_MACRO_DIR([autostuff])
AC_CONFIG_AUX_DIR([autostuff])

AH_TOP([#ifndef SP_CONFIG_H
#define SP_CONFIG_H])
AH_BOTTOM([#endif])

# 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 -Wmissing-prototypes -Wshadow"

# 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 $host_os in
*linux*)
	AM_CONDITIONAL([LINUX], true)
	AM_CONDITIONAL([WIN32], false)
	AM_CONDITIONAL([MACOSX], false)
	AM_CONDITIONAL([FREEBSD], false)
	;;
*darwin*)
	AM_CONDITIONAL([LINUX], false)
	AM_CONDITIONAL([WIN32], false)
	AM_CONDITIONAL([MACOSX], true)
	AM_CONDITIONAL([FREEBSD], false)
	LDFLAGS="$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)
	AM_CONDITIONAL([FREEBSD], false)
	SP_LIBS="-lsetupapi"
	;;
*freebsd*)
	AM_CONDITIONAL([LINUX], false)
	AM_CONDITIONAL([WIN32], false)
	AM_CONDITIONAL([MACOSX], false)
	AM_CONDITIONAL([FREEBSD], true)
	;;
*)
	AM_CONDITIONAL([LINUX], false)
	AM_CONDITIONAL([WIN32], false)
	AM_CONDITIONAL([MACOSX], false)
	AM_CONDITIONAL([FREEBSD], false)
	AC_DEFINE(NO_ENUMERATION,,[Enumeration is unsupported])
	AC_DEFINE(NO_PORT_METADATA,,[Port metadata is unavailable])
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,
		[struct termios2 is available.])],
	[], [[#include <linux/termios.h>]])
AC_CHECK_TYPE([struct termiox],
	[AC_DEFINE(HAVE_TERMIOX, 1,
		[struct termiox is available.])],
	[], [[#include <linux/termios.h>]])
AC_CHECK_MEMBERS([struct termios.c_ispeed, struct termios.c_ospeed],
	[AC_DEFINE(HAVE_TERMIOS_SPEED, 1,
		[struct termios has c_ispeed/c_ospeed.])],
	[], [[#include <linux/termios.h>]])
AC_CHECK_MEMBERS([struct termios2.c_ispeed, struct termios2.c_ospeed],
	[AC_DEFINE(HAVE_TERMIOS2_SPEED, 1,
		[struct termios2 has c_ispeed/c_ospeed.])],
	[], [[#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, [BOTHER macro is available])
AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no])])

# Check for serial_struct.
AC_CHECK_TYPE([struct serial_struct],
	[AC_DEFINE(HAVE_SERIAL_STRUCT, 1,
		[struct serial is available.])],
        [], [[#include <linux/serial.h>]])

saved="$CFLAGS"; CFLAGS="$CFLAGS -Werror"
AC_DEFINE(SP_API,,[Macro preceding public API functions])
AC_DEFINE(SP_PRIV,,[Macro preceding private functions])
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
Commit	Line	Data
0662f2bb ML	1	##
	2	## This file is part of the libserialport project.
	3	##
	4	## Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
	5	## Copyright (C) 2013 Martin Ling <martin-libserialport@earth.li>
	6	##
	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.
	11	##
	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.
	16	##
	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/>.
	19	##
	20
	21	# We require at least autoconf 2.63 (AC_INIT format changed there).
	22	AC_PREREQ([2.63])
	23
	24	# libserialport package version number (NOT the same as shared lib version!).
	25	m4_define([sp_package_version_major], [0])
3f2f48fc UH	26	m4_define([sp_package_version_minor], [1])
3f2f48fc UH	27	m4_define([sp_package_version_micro], [1])
7de20e39	28	m4_define([sp_package_version], [sp_package_version_major.sp_package_version_minor.sp_package_version_micro])
0662f2bb ML	29
0662f2bb ML	30	AC_INIT([libserialport], [sp_package_version], [martin-libserialport@earth.li],
728f6de5	31	[libserialport], [http://sigrok.org/wiki/Libserialport])
7c081505	32	AC_CONFIG_HEADERS([config.h])
0662f2bb ML	33	AC_CONFIG_MACRO_DIR([autostuff])
	34	AC_CONFIG_AUX_DIR([autostuff])
	35
5ca38cdf UH	36	AH_TOP([#ifndef SP_CONFIG_H
	37	#define SP_CONFIG_H])
	38	AH_BOTTOM([#endif])
	39
0662f2bb	40	# We require at least automake 1.11 (needed for 'silent rules').
9fb99134	41	AM_INIT_AUTOMAKE([1.11 -Wall -Werror check-news])
0662f2bb ML	42	m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
	43	m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
	44
7f450f46	45	# Enable more compiler warnings.
613c48f1	46	CFLAGS="$CFLAGS -std=c99 -Wall -Wextra -pedantic -Wmissing-prototypes -Wshadow"
0662f2bb ML	47
	48	# Checks for programs.
	49	AC_PROG_CC
	50	AC_PROG_CPP
	51	AC_PROG_INSTALL
	52	AC_PROG_LN_S
	53
0662f2bb ML	54	# Initialize libtool.
	55	LT_INIT
	56
	57	# Initialize pkg-config.
f92f1f0c	58	# We require at least 0.22, as "Requires.private" behaviour changed there.
0662f2bb ML	59	PKG_PROG_PKG_CONFIG([0.22])
	60
	61	# Library version for libserialport (NOT the same as the package version).
	62	# Carefully read the libtool docs before updating these numbers!
	63	# The algorithm for determining which number to change (and how) is nontrivial!
	64	# http://www.gnu.org/software/libtool/manual/libtool.html#Updating-version-info
	65	SP_LIB_VERSION_CURRENT=0
	66	SP_LIB_VERSION_REVISION=0
	67	SP_LIB_VERSION_AGE=0
	68	SP_LIB_VERSION="$SP_LIB_VERSION_CURRENT:$SP_LIB_VERSION_REVISION:$SP_LIB_VERSION_AGE"
	69	SP_LIB_LDFLAGS="-version-info $SP_LIB_VERSION"
	70	AC_SUBST(SP_LIB_VERSION_CURRENT)
	71	AC_SUBST(SP_LIB_VERSION_REVISION)
	72	AC_SUBST(SP_LIB_VERSION_AGE)
	73	AC_SUBST(SP_LIB_VERSION)
	74	AC_SUBST(SP_LIB_LDFLAGS)
	75
e4bffe06 UH	76	# Checks for libraries.
	77
	78	# This variable collects the pkg-config names of all detected libs.
	79	# It is then used to construct the "Requires.private:" field in the
	80	# libserialport.pc file.
	81	SP_PKGLIBS=""
a93fb468	82	SP_LIBS=""
0662f2bb	83
3cb7aa98	84	case $host_os in
1ebf4347	85	linux)
27e231ff	86	AM_CONDITIONAL([LINUX], true)
e33dcf90 ML	87	AM_CONDITIONAL([WIN32], false)
e33dcf90 ML	88	AM_CONDITIONAL([MACOSX], false)
ccd512d5	89	AM_CONDITIONAL([FREEBSD], false)
1ebf4347 ML	90	;;
1ebf4347 ML	91	darwin)
27e231ff	92	AM_CONDITIONAL([LINUX], false)
e33dcf90 ML	93	AM_CONDITIONAL([WIN32], false)
e33dcf90 ML	94	AM_CONDITIONAL([MACOSX], true)
ccd512d5	95	AM_CONDITIONAL([FREEBSD], false)
1ebf4347 ML	96	LDFLAGS="$LDFLAGS -Wl,-framework -Wl,IOKit -Wl,-framework -Wl,CoreFoundation"
	97	AC_CHECK_HEADER(IOKit/IOKitLib.h, [], [AC_MSG_ERROR([IOKit/IOKitLib.h not found])])
	98	;;
a93fb468 AJ	99	mingw* \| cygwin*)
a93fb468 AJ	100	AM_CONDITIONAL([LINUX], false)
e33dcf90 ML	101	AM_CONDITIONAL([WIN32], true)
e33dcf90 ML	102	AM_CONDITIONAL([MACOSX], false)
ccd512d5	103	AM_CONDITIONAL([FREEBSD], false)
777347a6	104	SP_LIBS="-lsetupapi"
a93fb468	105	;;
ccd512d5 UJ	106	freebsd)
	107	AM_CONDITIONAL([LINUX], false)
	108	AM_CONDITIONAL([WIN32], false)
	109	AM_CONDITIONAL([MACOSX], false)
	110	AM_CONDITIONAL([FREEBSD], true)
	111	;;
27e231ff ML	112	*)
27e231ff ML	113	AM_CONDITIONAL([LINUX], false)
e33dcf90 ML	114	AM_CONDITIONAL([WIN32], false)
e33dcf90 ML	115	AM_CONDITIONAL([MACOSX], false)
ccd512d5	116	AM_CONDITIONAL([FREEBSD], false)
7c081505 ML	117	AC_DEFINE(NO_ENUMERATION,,[Enumeration is unsupported])
7c081505 ML	118	AC_DEFINE(NO_PORT_METADATA,,[Port metadata is unavailable])
1ebf4347 ML	119	esac
1ebf4347 ML	120
e4bffe06	121	AC_SUBST(SP_PKGLIBS)
a93fb468	122	AC_SUBST(SP_LIBS)
e4bffe06	123
7c3a1ee3	124	# Define size_t if not defined as standard.
0662f2bb	125	AC_TYPE_SIZE_T
2dcf8308 ML	126
2dcf8308 ML	127	# Check for specific termios structures.
7c081505 ML	128	AC_CHECK_TYPE([struct termios2],
	129	[AC_DEFINE(HAVE_TERMIOS2, 1,
	130	[struct termios2 is available.])],
	131	[], [[#include <linux/termios.h>]])
	132	AC_CHECK_TYPE([struct termiox],
	133	[AC_DEFINE(HAVE_TERMIOX, 1,
	134	[struct termiox is available.])],
	135	[], [[#include <linux/termios.h>]])
5cea279a	136	AC_CHECK_MEMBERS([struct termios.c_ispeed, struct termios.c_ospeed],
7c081505 ML	137	[AC_DEFINE(HAVE_TERMIOS_SPEED, 1,
	138	[struct termios has c_ispeed/c_ospeed.])],
	139	[], [[#include <linux/termios.h>]])
5cea279a	140	AC_CHECK_MEMBERS([struct termios2.c_ispeed, struct termios2.c_ospeed],
7c081505 ML	141	[AC_DEFINE(HAVE_TERMIOS2_SPEED, 1,
	142	[struct termios2 has c_ispeed/c_ospeed.])],
	143	[], [[#include <linux/termios.h>]])
0662f2bb	144
59182fbb ML	145	# Check for the BOTHER definition, needed for setting arbitrary baud rates.
	146	# We can't just #ifdef BOTHER in the code, because of the separation between
	147	# code using libc headers and code using kernel termios.h headers.
	148	AC_MSG_CHECKING(for BOTHER)
	149	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
	150	#include <linux/termios.h>
	151	]],
	152	[[
	153	#ifndef BOTHER
	154	#error BOTHER is not defined
	155	#endif
	156	]])],
7c081505	157	[AC_DEFINE(HAVE_BOTHER, 1, [BOTHER macro is available])
59182fbb ML	158	AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no])])
59182fbb ML	159
12056e2f	160	# Check for serial_struct.
7c081505 ML	161	AC_CHECK_TYPE([struct serial_struct],
	162	[AC_DEFINE(HAVE_SERIAL_STRUCT, 1,
	163	[struct serial is available.])],
12056e2f MC	164	[], [[#include <linux/serial.h>]])
12056e2f MC	165
970f279a	166	saved="$CFLAGS"; CFLAGS="$CFLAGS -Werror"
7c081505 ML	167	AC_DEFINE(SP_API,,[Macro preceding public API functions])
7c081505 ML	168	AC_DEFINE(SP_PRIV,,[Macro preceding private functions])
970f279a AJ	169	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
	170	__attribute__((visibility("hidden"))) void foo(void) { }
	171	]])],
8c6de591	172	[AC_DEFINE(SP_API, __attribute__((visibility("default"))))]
970f279a AJ	173	[AC_DEFINE(SP_PRIV, __attribute__((visibility("hidden"))))],
	174	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
	175	__declspec(dllexport) void foo(void) { }
	176	]])],
8c6de591	177	[AC_DEFINE(SP_API, __declspec(dllexport))]
970f279a AJ	178	[AC_DEFINE(SP_PRIV,)],
	179	[AC_DEFINE(SP_API,)]
	180	[AC_DEFINE(SP_PRIV,)]))
	181	CFLAGS="$saved"
	182
0662f2bb ML	183	AC_SUBST(MAKEFLAGS, '--no-print-directory')
	184	AC_SUBST(AM_LIBTOOLFLAGS, '--silent')
	185
	186	SP_PACKAGE_VERSION_MAJOR=sp_package_version_major
	187	SP_PACKAGE_VERSION_MINOR=sp_package_version_minor
7de20e39	188	SP_PACKAGE_VERSION_MICRO=sp_package_version_micro
0662f2bb ML	189	SP_PACKAGE_VERSION=sp_package_version
	190
	191	AC_SUBST(SP_PACKAGE_VERSION_MAJOR)
	192	AC_SUBST(SP_PACKAGE_VERSION_MINOR)
7de20e39	193	AC_SUBST(SP_PACKAGE_VERSION_MICRO)
0662f2bb ML	194	AC_SUBST(SP_PACKAGE_VERSION)
0662f2bb ML	195
baba0759	196	AC_CONFIG_FILES([Makefile libserialport.h libserialport.pc])
0662f2bb ML	197
	198	AC_OUTPUT
	199
	200	echo
	201	echo "libserialport configuration summary:"
	202	echo
7de20e39	203	echo " - Package version (major.minor.micro): $SP_PACKAGE_VERSION"
0662f2bb ML	204	echo " - Library version (current:revision:age): $SP_LIB_VERSION"
	205	echo " - Prefix: $prefix"
	206	echo " - Building on: $build"
	207	echo " - Building for: $host"
	208	echo