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# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
# $Id: configure.ac 35 2007-02-20 17:39:10Z lennart $
# This file is part of libasyncns.
#
# libasyncns 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 2 of the License, or
# (at your option) any later version.
#
# libasyncns 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 libasyncns; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
AC_PREREQ(2.59)
AC_INIT([libasyncns],[0.3],[mznflapaf (at) 0pointer (dot) de])
AC_CONFIG_SRCDIR([libasyncns/asyncns.c])
AC_CONFIG_HEADERS([config.h])
AM_INIT_AUTOMAKE([foreign 1.9 -Wall])
AC_SUBST(PACKAGE_URL, [http://0pointer.de/lennart/projects/libasyncns/])
AC_SUBST(LIBASYNCNS_VERSION_INFO, [1:0:1])
if type -p stow > /dev/null && test -d /usr/local/stow ; then
AC_MSG_NOTICE([*** Found /usr/local/stow: default install prefix set to /usr/local/stow/${PACKAGE_NAME}-${PACKAGE_VERSION} ***])
ac_default_prefix="/usr/local/stow/${PACKAGE_NAME}-${PACKAGE_VERSION}"
fi
# Checks for programs.
AC_PROG_CC
AC_PROG_CPP
AC_GNU_SOURCE
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_PROG_LIBTOOL
test_gcc_flag() {
AC_LANG_CONFTEST([int main() {}])
$CC -c conftest.c $CFLAGS $@ > /dev/null 2> /dev/null
ret=$?
rm -f conftest.o
return $ret
}
# If using GCC specify some additional parameters
if test "x$GCC" = "xyes" ; then
DESIRED_FLAGS="-std=c99 -Wall -W -Wextra -pedantic -pipe -Wformat -Wold-style-definition -Wdeclaration-after-statement -Wfloat-equal -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wredundant-decls -Wmissing-noreturn -Wshadow -Wendif-labels -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings -Winline -Wno-unused-parameter"
for flag in $DESIRED_FLAGS ; do
AC_MSG_CHECKING([whether $CC accepts $flag])
if test_gcc_flag $flag ; then
CFLAGS="$CFLAGS $flag"
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
done
fi
# Checks for header files.
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS([arpa/inet.h fcntl.h netdb.h stdlib.h string.h sys/socket.h unistd.h sys/prctl.h netinet/in.h])
#AC_HEADER_RESOLV
# Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_PID_T
AC_TYPE_SIZE_T
#AC_TYPE_SSIZE_T
#AC_TYPE_UINT16_T
#AC_TYPE_UINT8_T
AC_HEADER_TIME
# Checks for library functions.
AC_FUNC_FORK
AC_FUNC_MALLOC
AC_FUNC_SELECT_ARGTYPES
AC_TYPE_SIGNAL
AC_CHECK_FUNCS([memset select strndup setresuid setreuid strerror])
AC_CHECK_LIB(nsl, gethostbyname)
AC_CHECK_LIB(socket, connect)
AC_CHECK_FUNC(res_query, ,
[AC_CHECK_LIB(resolv, res_query, [],
[ save_libs="$LIBS"
LIBS="-lresolv $LIBS"
AC_MSG_CHECKING([for res_query in -lresolv (alternate version)])
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([[#include <resolv.h>]], [[res_query(0,0,0,0,0)]])],
[ AC_MSG_RESULT(yes) ],
[ AC_MSG_RESULT(no)
LIBS="$save_libs"
AC_CHECK_LIB(bind, res_query,
[], [ AC_MSG_ERROR(res_query not found) ] ) ] ) ] )
]
)
ACX_PTHREAD
# LYNX documentation generation
AC_ARG_ENABLE(lynx,
AC_HELP_STRING(--disable-lynx,Turn off lynx usage for documentation generation),
[case "${enableval}" in
yes) lynx=yes ;;
no) lynx=no ;;
*) AC_MSG_ERROR(bad value ${enableval} for --disable-lynx) ;;
esac],[lynx=yes])
if test x$lynx = xyes ; then
AC_CHECK_PROG(have_lynx, lynx, yes, no)
if test x$have_lynx = xno ; then
AC_MSG_WARN([*** lynx not found, plain text README will not be built ***])
fi
fi
AM_CONDITIONAL([USE_LYNX], [test "x$lynx" = xyes])
AC_CONFIG_FILES([Makefile libasyncns/Makefile doc/Makefile doc/README.html doxygen/Makefile doxygen/doxygen.conf libasyncns.pc])
AC_OUTPUT
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