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m4/lx_check_soplex.m4
author Peter Kovacs <kpeter@inf.elte.hu>
Fri, 03 Apr 2009 18:59:15 +0200
changeset 655 6ac5d9ae1d3d
parent 187 84c2a2e5cfee
child 586 547e966b3b29
permissions -rw-r--r--
Support real types + numerical stability fix in NS (#254)

- Real types are supported by appropriate inicialization.
- A feature of the XTI spanning tree structure is removed to ensure
numerical stability (could cause problems using integer types).
The node potentials are updated always on the lower subtree,
in order to prevent overflow problems.
The former method isn't notably faster during to our tests. 
     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/include"

    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/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([HAVE_SOPLEX], [1], [Define to 1 if you have SOPLEX.])

    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       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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