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dnl Process this file with autoconf to produce a configure script.
AC_PREREQ(2.64)
AC_INIT([wavemon], [0.9.1], [https://github.com/uoaerg/wavemon], [wavemon-current],
[https://github.com/uoaerg/wavemon])
# Variables
AC_CONFIG_AUX_DIR([config])
AC_CONFIG_FILES([Makefile])
CFLAGS="-O2 -Wall"
# wavemon is only supported on Linux, warn user about futile compilations
AC_CANONICAL_HOST
case "$host_os" in
*linux*|*LINUX*) ;;
*) AC_MSG_ERROR([incompatible OS '$host_os' - required is Linux with wireless extensions.])
esac
# Checks for programs.
AC_PROG_CC
AC_PROG_CPP
AC_PROG_INSTALL
# Checks for header files.
AC_HEADER_STDC
AC_HEADER_TIME
AC_CHECK_HEADERS([ncurses.h fcntl.h netdb.h sys/ioctl.h sys/time.h unistd.h\
net/if_arp.h netinet/ether.h net/ethernet.h pthread.h],
[], [AC_MSG_ERROR($ac_header not found)])
# linux/if.h needs 'struct sockaddr'
# linux/wireless.h in turn depends on linux/if.h
AC_CHECK_HEADERS([sys/socket.h linux/if.h linux/wireless.h], [],
[AC_MSG_ERROR(can not use $ac_header)],
[#if HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#if HAVE_LINUX_IF_H
# include <linux/if.h>
#endif
])
# require minimum version of the wireless extensions
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[#include <sys/socket.h>
#include <linux/wireless.h>
#if WIRELESS_EXT < 18
#error "Need minimum version WIRELESS_EXT = 18"
#endif])],[],
[AC_MSG_FAILURE([linux/wireless.h is too old, need WE >= 18])])
AC_HEADER_STDBOOL
# Tests involving libraries
AC_CHECK_LIB([m], [pow], [], [AC_MSG_ERROR(math library not found)])
AC_CHECK_LIB([ncurses], [waddstr], [], [AC_MSG_ERROR(ncurses library not found)])
AC_CHECK_LIB([pthread], [pthread_create], [CFLAGS="$CFLAGS -pthread"],
[AC_MSG_ERROR(pthread library not found)])
# libcap - allow to disable, since e.g. OpenWrt does not use it.
# https://github.com/uoaerg/wavemon/issues/54
AC_ARG_WITH([libcap],
[AS_HELP_STRING([--without-libcap],
[disable support for libcap])],
[],
[with_libcap=yes])
AS_IF([test "x$with_libcap" != xno], AC_CHECK_LIB([cap], [cap_get_flag]))
# Testing library functions
AC_CHECK_FUNCS([gettimeofday ether_ntohost], [],
[AC_MSG_ERROR(function '$ac_func' not supported)])
# libnl3 with GeNetlink support - wavemon is tracking changes to iw
PKG_CHECK_MODULES([LIBNL3], [libnl-3.0 >= 3.2], [],
[CFLAGS="$CFLAGS $LIBNL3_CFLAGS"],
[AC_MSG_ERROR(need libnl >= 3.2)])
PKG_CHECK_MODULES([LIBNL3_GENL], [libnl-genl-3.0 >= 3.2],
[LIBS="$LIBS $LIBNL3_GENL_LIBS"],
[AC_MSG_ERROR(need libnl-genl >= 3.2)])
# Checks for typedefs, structures, and compiler characteristics.
AC_PROG_GCC_TRADITIONAL
AC_C_CONST
AC_C_INLINE
AC_OUTPUT
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