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m4/lx_check_soplex.m4
author Peter Kovacs <kpeter@inf.elte.hu>
Tue, 15 Mar 2011 19:32:21 +0100
changeset 936 ddd3c0d3d9bf
parent 539 547e966b3b29
parent 511 8a144437db7d
permissions -rw-r--r--
Implement the scaling Price Refinement heuristic in CostScaling (#417)
instead of Early Termination.

These two heuristics are similar, but the newer one is faster
and not only makes it possible to skip some epsilon phases, but
it can improve the performance of the other phases, as well. 
     1 AC_DEFUN([LX_CHECK_SOPLEX],

     2 [

     3   AC_ARG_WITH([soplex],

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

     5 AS_HELP_STRING([--without-soplex], [disable checking for SOPLEX]),

     6               [], [with_soplex=yes])

     7 

     8   AC_ARG_WITH([soplex-includedir],

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

    10               [], [with_soplex_includedir=no])

    11 

    12   AC_ARG_WITH([soplex-libdir],

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

    14               [], [with_soplex_libdir=no])

    15 

    16   lx_soplex_found=no

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

    18     AC_MSG_CHECKING([for SOPLEX])

    19 

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

    21       SOPLEX_CXXFLAGS="-I$with_soplex_includedir"

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

    23       SOPLEX_CXXFLAGS="-I$with_soplex/src"

    24     fi

    25 

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

    27       SOPLEX_LDFLAGS="-L$with_soplex_libdir"

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

    29       SOPLEX_LDFLAGS="-L$with_soplex/lib"

    30     fi

    31     SOPLEX_LIBS="-lsoplex -lz"

    32 

    33     lx_save_cxxflags="$CXXFLAGS"

    34     lx_save_ldflags="$LDFLAGS"

    35     lx_save_libs="$LIBS"

    36     CXXFLAGS="$SOPLEX_CXXFLAGS"

    37     LDFLAGS="$SOPLEX_LDFLAGS"

    38     LIBS="$SOPLEX_LIBS"

    39 

    40     lx_soplex_test_prog='

    41       #include <soplex.h>

    42 

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

    44       {

    45         soplex::SoPlex soplex;

    46         return 0;

    47       }'

    48 

    49     AC_LANG_PUSH(C++)

    50     AC_LINK_IFELSE([$lx_soplex_test_prog], [lx_soplex_found=yes], [lx_soplex_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_soplex_found" = x"yes"; then

    58       AC_DEFINE([LEMON_HAVE_SOPLEX], [1], [Define to 1 if you have SOPLEX.])

    59       lx_lp_found=yes

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

    61       AC_MSG_RESULT([yes])

    62     else

    63       SOPLEX_CXXFLAGS=""

    64       SOPLEX_LDFLAGS=""

    65       SOPLEX_LIBS=""

    66       AC_MSG_RESULT([no])

    67     fi

    68   fi

    69   SOPLEX_LIBS="$SOPLEX_LDFLAGS $SOPLEX_LIBS"

    70   AC_SUBST(SOPLEX_CXXFLAGS)

    71   AC_SUBST(SOPLEX_LIBS)

    72   AM_CONDITIONAL([HAVE_SOPLEX], [test x"$lx_soplex_found" = x"yes"])

    73 ])
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