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# libmodbus package version number, (as distinct from shared library version)
# An odd micro number indicates in-progress development from Git
# An even micro number indicates a released version
#
# Making a point release:
# - increase libmodbus_version_micro to the next even number
#
# After the release:
# - increase libmodbus_version_minor to the next odd number
#
# Take care to update the libtool versioning when required (LIBMODBUS_LD_*).
# http://www.gnu.org/software/libtool/manual/html_node/Libtool-versioning.html
#
m4_define([libmodbus_version_major], [3])
m4_define([libmodbus_version_minor], [1])
m4_define([libmodbus_version_micro], [2])
m4_define([libmodbus_release_status],
[m4_if(m4_eval(libmodbus_version_minor % 2), [1], [snapshot], [release])])
m4_define([libmodbus_version],
[libmodbus_version_major.libmodbus_version_minor.libmodbus_version_micro])
AC_PREREQ([2.63])
AC_INIT([libmodbus],
[libmodbus_version],
[https://github.com/stephane/libmodbus/issues],
[libmodbus],
[http://libmodbus.org/])
AC_CONFIG_SRCDIR([src/modbus.c])
AC_CONFIG_AUX_DIR([build-aux])
AM_INIT_AUTOMAKE([check-news foreign 1.11 -Wall -Wno-portability silent-rules tar-pax subdir-objects])
AC_PROG_CC_STDC
AC_USE_SYSTEM_EXTENSIONS
AC_SYS_LARGEFILE
AC_CONFIG_MACRO_DIR([m4])
AM_SILENT_RULES([yes])
LIBMODBUS_VERSION_MAJOR=libmodbus_version_major
LIBMODBUS_VERSION_MINOR=libmodbus_version_minor
LIBMODBUS_VERSION_MICRO=libmodbus_version_micro
LIBMODBUS_VERSION=libmodbus_version
AC_SUBST(LIBMODBUS_VERSION_MAJOR)
AC_SUBST(LIBMODBUS_VERSION_MINOR)
AC_SUBST(LIBMODBUS_VERSION_MICRO)
AC_SUBST(LIBMODBUS_VERSION)
# ABI version
# http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
LIBMODBUS_LD_CURRENT=6
LIBMODBUS_LD_REVISION=0
LIBMODBUS_LD_AGE=1
LIBMODBUS_LT_VERSION_INFO=$LIBMODBUS_LD_CURRENT:$LIBMODBUS_LD_REVISION:$LIBMODBUS_LD_AGE
AC_SUBST(LIBMODBUS_LT_VERSION_INFO)
AC_CANONICAL_HOST
# OS check
os_win32="false"
os_qnx="false"
case "${host_os}" in
*mingw32*)
os_win32="true"
;;
*nto-qnx*)
os_qnx="true"
;;
esac
AM_CONDITIONAL(OS_WIN32, test "$os_win32" = "true")
AM_CONDITIONAL(OS_QNX, test "$os_qnx" = "true")
LT_INIT([disable-static win32-dll pic-only])
AC_CHECK_HEADERS([ \
arpa/inet.h \
byteswap.h \
errno.h \
fcntl.h \
limits.h \
linux/serial.h \
netdb.h \
netinet/in.h \
netinet/tcp.h \
sys/ioctl.h \
sys/socket.h \
sys/time.h \
sys/types.h \
termios.h \
time.h \
unistd.h \
])
# Check whether to build docs / install man pages
AC_LIBMODBUS_CHECK_BUILD_DOC
# Cygwin defines IPTOS_LOWDELAY but can't handle that flag so it's necessary to
# workaround that problem and Cygwin doesn't define MSG_DONTWAIT.
AC_CHECK_DECLS([__CYGWIN__])
# Checks for library functions.
AC_FUNC_FORK
AC_CHECK_FUNCS([accept4 getaddrinfo gettimeofday inet_ntoa memset select socket strerror strlcpy])
# Required for MinGW with GCC v4.8.1 on Win7
AC_DEFINE(WINVER, 0x0501, _)
# Required for getaddrinfo (TCP PI - IPv6)
AC_CHECK_HEADERS([winsock2.h], HAVE_WINSOCK2_H=yes)
if test "x$HAVE_WINSOCK2_H" = "xyes"; then
LIBS="$LIBS -lws2_32"
AC_SUBST(LIBS)
fi
# Check for RS485 support (Linux kernel version 2.6.28+)
AC_CHECK_DECLS([TIOCSRS485], [], [], [[#include <sys/ioctl.h>]])
# Check for RTS flags
AC_CHECK_DECLS([TIOCM_RTS], [], [], [[#include <sys/ioctl.h>]])
# Wtype-limits is not supported by gcc 4.2 (default on recent Mac OS X)
my_CFLAGS="-Wall \
-Wmissing-declarations -Wmissing-prototypes \
-Wnested-externs -Wpointer-arith \
-Wpointer-arith -Wsign-compare -Wchar-subscripts \
-Wstrict-prototypes -Wshadow \
-Wformat-security"
AC_SUBST([my_CFLAGS])
AC_CONFIG_HEADERS([config.h tests/unit-test.h])
AC_CONFIG_FILES([
Makefile
src/Makefile
src/modbus-version.h
src/win32/modbus.dll.manifest
tests/Makefile
doc/Makefile
libmodbus.pc
])
AC_OUTPUT
AC_MSG_RESULT([
$PACKAGE $VERSION
===============
prefix: ${prefix}
sysconfdir: ${sysconfdir}
libdir: ${libdir}
includedir: ${includedir}
compiler: ${CC}
cflags: ${CFLAGS}
ldflags: ${LDFLAGS}
documentation: ${ac_libmodbus_build_doc}
])
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