dnl Process this file with autoconf to produce a configure script.

 dnl Version information.

 m4_define([lemon_version_number],

 	[m4_normalize(esyscmd([echo ${LEMON_VERSION}]))])

 dnl m4_define([lemon_version_number], [])

 m4_define([lemon_hg_path], [m4_normalize(esyscmd([./scripts/chg-len.py]))])

 m4_define([lemon_hg_revision], [m4_normalize(esyscmd([hg id -i]))])

 m4_define([lemon_version], [ifelse(lemon_version_number(),

 			   [],

 			   [lemon_hg_path().lemon_hg_revision()],

 			   [lemon_version_number()])])

 AC_PREREQ([2.59])

 AC_INIT([LEMON], [lemon_version()], [lemon-user@lemon.cs.elte.hu], [lemon])

 AC_CONFIG_AUX_DIR([build-aux])

 AC_CONFIG_MACRO_DIR([m4])

 AM_INIT_AUTOMAKE([-Wall -Werror foreign subdir-objects nostdinc])

 AC_CONFIG_SRCDIR([lemon/list_graph.h])

 AC_CONFIG_HEADERS([config.h lemon/config.h])

 lx_cmdline_cxxflags_set=${CXXFLAGS+set}

 dnl Do compilation tests using the C++ compiler.

 AC_LANG([C++])

 dnl Check the existence of long long type.

 AC_CHECK_TYPE(long long, [long_long_found=yes], [long_long_found=no])

 if test x"$long_long_found" = x"yes"; then

   AC_DEFINE([LEMON_HAVE_LONG_LONG], [1], [Define to 1 if you have long long.])

 fi

 dnl Checks for programs.

 AC_PROG_CXX

 AC_PROG_CXXCPP

 AC_PROG_INSTALL

 AC_DISABLE_SHARED

 AC_PROG_LIBTOOL

 AC_CHECK_PROG([doxygen_found],[doxygen],[yes],[no])

 AC_CHECK_PROG([gs_found],[gs],[yes],[no])

 dnl Detect Intel compiler.

 AC_MSG_CHECKING([whether we are using the Intel C++ compiler])

 AC_COMPILE_IFELSE([#ifndef __INTEL_COMPILER

 choke me

 #endif], [ICC=[yes]], [ICC=[no]])

 if test x"$ICC" = x"yes"; then

   AC_MSG_RESULT([yes])

 else

   AC_MSG_RESULT([no])

 fi

 dnl Set custom compiler flags when using g++.

 if test x"$lx_cmdline_cxxflags_set" != x"set" -a "$GXX" = yes -a "$ICC" = no; then

   CXXFLAGS="$CXXFLAGS -Wall -W -Wall -W -Wunused -Wformat=2 -Wctor-dtor-privacy -Wnon-virtual-dtor -Wno-char-subscripts -Wwrite-strings -Wno-char-subscripts -Wreturn-type -Wcast-qual -Wcast-align -Wsign-promo -Woverloaded-virtual -Woverloaded-virtual -ansi -fno-strict-aliasing -Wold-style-cast -Wno-unknown-pragmas"

 fi

 dnl Checks for libraries.

 #LX_CHECK_GLPK

 #LX_CHECK_CPLEX

 #LX_CHECK_SOPLEX

 dnl Disable/enable building the demo programs.

 AC_ARG_ENABLE([demo],

 AS_HELP_STRING([--enable-demo], [build the demo programs])

 AS_HELP_STRING([--disable-demo], [do not build the demo programs @<:@default@:>@]),

               [], [enable_demo=no])

 AC_MSG_CHECKING([whether to build the demo programs])

 if test x"$enable_demo" != x"no"; then

   AC_MSG_RESULT([yes])

 else

   AC_MSG_RESULT([no])

 fi

 AM_CONDITIONAL([WANT_DEMO], [test x"$enable_demo" != x"no"])

 dnl Disable/enable building the binary tools.

 AC_ARG_ENABLE([tools],

 AS_HELP_STRING([--enable-tools], [build additional tools @<:@default@:>@])

 AS_HELP_STRING([--disable-tools], [do not build additional tools]),

               [], [enable_tools=yes])

 AC_MSG_CHECKING([whether to build the additional tools])

 if test x"$enable_tools" != x"no"; then

   AC_MSG_RESULT([yes])

 else

   AC_MSG_RESULT([no])

 fi

 AM_CONDITIONAL([WANT_TOOLS], [test x"$enable_tools" != x"no"])

 dnl Checks for header files.

 AC_CHECK_HEADERS(limits.h sys/time.h sys/times.h unistd.h)

 dnl Checks for typedefs, structures, and compiler characteristics.

 AC_C_CONST

 AC_C_INLINE

 AC_TYPE_SIZE_T

 AC_HEADER_TIME

 AC_STRUCT_TM

 dnl Checks for library functions.

 AC_HEADER_STDC

 AC_CHECK_FUNCS(gettimeofday times ctime_r)

 dnl Add dependencies on files generated by configure.

 AC_SUBST([CONFIG_STATUS_DEPENDENCIES],

   ['$(top_srcdir)/doc/Doxyfile.in $(top_srcdir)/lemon/lemon.pc.in $(top_srcdir)/cmake/version.cmake.in'])

 AC_CONFIG_FILES([

 Makefile

 cmake/version.cmake

 doc/Doxyfile

 lemon/lemon.pc

 ])

 AC_OUTPUT

 echo

 echo '****************************** SUMMARY ******************************'

 echo

 echo Package version............... : $PACKAGE-$VERSION

 echo

 echo C++ compiler.................. : $CXX

 echo C++ compiles flags............ : $CXXFLAGS

 echo

 echo Compiler supports long long... : $long_long_found

 echo

 #echo GLPK support.................. : $lx_glpk_found

 #echo CPLEX support................. : $lx_cplex_found

 #echo SOPLEX support................ : $lx_soplex_found

 #echo

 echo Build demo programs........... : $enable_demo

 echo Build additional tools........ : $enable_tools

 echo

 echo The packace will be installed in

 echo -n '  '

 echo $prefix.

 echo

 echo '*********************************************************************'

 echo

 echo Configure complete, now type \'make\' and then \'make install\'.

 echo