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2013-04-02Imported Upstream version 0+git20130227.3c5fe84upstream/0+git20130227.3c5fe84Jonathan McCrohan1-0/+6
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dnl Process this file with autoconf to produce a configure script.
AC_PREREQ(2.64)
AC_INIT([wavemon], [0.7.5], [gerrit@erg.abdn.ac.uk], [wavemon-current],
	[http://eden-feed.erg.abdn.ac.uk/wavemon])


# Variables
AC_CONFIG_AUX_DIR([config])
AC_CONFIG_FILES([Makefile])
AC_DEFINE_UNQUOTED([BUILD_DATE], ["`/bin/date`"],
		   [date wavemon was last configured and built])

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],
		 [], [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_CHECK_LIB([ncurses], [waddstr])
AC_CHECK_LIB([cap], [cap_get_flag])


# Testing library functions
AC_CHECK_FUNCS([modf log10 gettimeofday	\
		memmove memset strdup	\
		strchr strspn strcspn	\
		strcasecmp strncasecmp	\
		strtol			\
		ether_ntohost], [],
	       [AC_MSG_ERROR(function '$ac_func' not supported)])

# Checks for typedefs, structures, and compiler characteristics.
AC_PROG_GCC_TRADITIONAL
AC_C_CONST
AC_C_INLINE

AC_OUTPUT