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m4/lx_check_clp.m4
author Peter Kovacs <kpeter@inf.elte.hu>
Tue, 24 Mar 2009 00:18:25 +0100
changeset 651 8c3112a66878
permissions -rw-r--r--
Use XTI implementation instead of ATI in NetworkSimplex (#234)

XTI (eXtended Threaded Index) is an imporved version of the widely
known ATI (Augmented Threaded Index) method for storing and updating
the spanning tree structure in Network Simplex algorithms.

In the ATI data structure three indices are stored for each node:
predecessor, thread and depth. In the XTI data structure depth is
replaced by the number of successors and the last successor
(according to the thread index). 
     1 AC_DEFUN([LX_CHECK_CLP],

     2 [

     3   AC_ARG_WITH([clp],

     4 AS_HELP_STRING([--with-clp@<:@=PREFIX@:>@], [search for CLP under PREFIX or under the default search paths if PREFIX is not given @<:@default@:>@])

     5 AS_HELP_STRING([--without-clp], [disable checking for CLP]),

     6               [], [with_clp=yes])

     7 

     8   AC_ARG_WITH([clp-includedir],

     9 AS_HELP_STRING([--with-clp-includedir=DIR], [search for CLP headers in DIR]),

    10               [], [with_clp_includedir=no])

    11 

    12   AC_ARG_WITH([clp-libdir],

    13 AS_HELP_STRING([--with-clp-libdir=DIR], [search for CLP libraries in DIR]),

    14               [], [with_clp_libdir=no])

    15 

    16   lx_clp_found=no

    17   if test x"$with_clp" != x"no"; then

    18     AC_MSG_CHECKING([for CLP])

    19 

    20     if test x"$with_clp_includedir" != x"no"; then

    21       CLP_CXXFLAGS="-I$with_clp_includedir"

    22     elif test x"$with_clp" != x"yes"; then

    23       CLP_CXXFLAGS="-I$with_clp/include"

    24     fi

    25 

    26     if test x"$with_clp_libdir" != x"no"; then

    27       CLP_LDFLAGS="-L$with_clp_libdir"

    28     elif test x"$with_clp" != x"yes"; then

    29       CLP_LDFLAGS="-L$with_clp/lib"

    30     fi

    31     CLP_LIBS="-lClp -lCoinUtils -lm"

    32 

    33     lx_save_cxxflags="$CXXFLAGS"

    34     lx_save_ldflags="$LDFLAGS"

    35     lx_save_libs="$LIBS"

    36     CXXFLAGS="$CLP_CXXFLAGS"

    37     LDFLAGS="$CLP_LDFLAGS"

    38     LIBS="$CLP_LIBS"

    39 

    40     lx_clp_test_prog='

    41       #include <coin/ClpModel.hpp>

    42 

    43       int main(int argc, char** argv)

    44       {

    45         ClpModel clp;

    46         return 0;

    47       }'

    48 

    49     AC_LANG_PUSH(C++)

    50     AC_LINK_IFELSE([$lx_clp_test_prog], [lx_clp_found=yes], [lx_clp_found=no])

    51     AC_LANG_POP(C++)

    52 

    53     CXXFLAGS="$lx_save_cxxflags"

    54     LDFLAGS="$lx_save_ldflags"

    55     LIBS="$lx_save_libs"

    56 

    57     if test x"$lx_clp_found" = x"yes"; then

    58       AC_DEFINE([HAVE_CLP], [1], [Define to 1 if you have CLP.])

    59       lx_lp_found=yes

    60       AC_DEFINE([HAVE_LP], [1], [Define to 1 if you have any LP solver.])

    61       AC_MSG_RESULT([yes])

    62     else

    63       CLP_CXXFLAGS=""

    64       CLP_LDFLAGS=""

    65       CLP_LIBS=""

    66       AC_MSG_RESULT([no])

    67     fi

    68   fi

    69   CLP_LIBS="$CLP_LDFLAGS $CLP_LIBS"

    70   AC_SUBST(CLP_CXXFLAGS)

    71   AC_SUBST(CLP_LIBS)

    72   AM_CONDITIONAL([HAVE_CLP], [test x"$lx_clp_found" = x"yes"])

    73 ])
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