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

dnl Version information.
m4_define([lemon_version_number], [])
m4_define([lemon_hg_revision], [m4_normalize(esyscmd([hg id -i]))])
m4_define([lemon_version], [ifelse(lemon_version_number(), [], [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 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 Set custom compiler flags when using g++.
if test x"$lx_cmdline_cxxflags_set" != x"set" -a "$GXX" = yes; 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 Disable/enable building the benchmarks.
AC_ARG_ENABLE([benchmark],
AS_HELP_STRING([--enable-benchmark], [build the benchmarks])
AS_HELP_STRING([--disable-benchmark], [do not build the benchmarks @<:@default@:>@]),
              [], [enable_benchmark=no])
AC_MSG_CHECKING([whether to build the benchmarks])
if test x"$enable_benchmark" != x"no"; then
  AC_MSG_RESULT([yes])
else
  AC_MSG_RESULT([no])
fi
AM_CONDITIONAL([WANT_BENCHMARK], [test x"$enable_benchmark" != 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'])

AC_CONFIG_FILES([
Makefile
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 GLPK support.................. : $lx_glpk_found
#echo CPLEX support................. : $lx_cplex_found
#echo SOPLEX support................ : $lx_soplex_found
#echo
echo Build benchmarks.............. : $enable_benchmark
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