Location: LEMON/LEMON-main/m4/lx_check_soplex.m4 - annotation
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Support >= and <= constraints in NetworkSimplex (#219, #234)
By default the same inequality constraints are supported as by
Circulation (the GEQ form), but the LEQ form can also be selected
using the problemType() function.
The documentation of the min. cost flow module is reworked and
extended with important notes and explanations about the different
variants of the problem and about the dual solution and optimality
conditions.
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[
AC_ARG_WITH([soplex],
AS_HELP_STRING([--with-soplex@<:@=PREFIX@:>@], [search for SOPLEX under PREFIX or under the default search paths if PREFIX is not given @<:@default@:>@])
AS_HELP_STRING([--without-soplex], [disable checking for SOPLEX]),
[], [with_soplex=yes])
AC_ARG_WITH([soplex-includedir],
AS_HELP_STRING([--with-soplex-includedir=DIR], [search for SOPLEX headers in DIR]),
[], [with_soplex_includedir=no])
AC_ARG_WITH([soplex-libdir],
AS_HELP_STRING([--with-soplex-libdir=DIR], [search for SOPLEX libraries in DIR]),
[], [with_soplex_libdir=no])
lx_soplex_found=no
if test x"$with_soplex" != x"no"; then
AC_MSG_CHECKING([for SOPLEX])
if test x"$with_soplex_includedir" != x"no"; then
SOPLEX_CXXFLAGS="-I$with_soplex_includedir"
elif test x"$with_soplex" != x"yes"; then
SOPLEX_CXXFLAGS="-I$with_soplex/include"
fi
if test x"$with_soplex_libdir" != x"no"; then
SOPLEX_LDFLAGS="-L$with_soplex_libdir"
elif test x"$with_soplex" != x"yes"; then
SOPLEX_LDFLAGS="-L$with_soplex/lib"
fi
SOPLEX_LIBS="-lsoplex -lz"
lx_save_cxxflags="$CXXFLAGS"
lx_save_ldflags="$LDFLAGS"
lx_save_libs="$LIBS"
CXXFLAGS="$SOPLEX_CXXFLAGS"
LDFLAGS="$SOPLEX_LDFLAGS"
LIBS="$SOPLEX_LIBS"
lx_soplex_test_prog='
#include <soplex/soplex.h>
int main(int argc, char** argv)
{
soplex::SoPlex soplex;
return 0;
}'
AC_LANG_PUSH(C++)
AC_LINK_IFELSE([$lx_soplex_test_prog], [lx_soplex_found=yes], [lx_soplex_found=no])
AC_LANG_POP(C++)
CXXFLAGS="$lx_save_cxxflags"
LDFLAGS="$lx_save_ldflags"
LIBS="$lx_save_libs"
if test x"$lx_soplex_found" = x"yes"; then
AC_DEFINE([HAVE_SOPLEX], [1], [Define to 1 if you have SOPLEX.])
lx_lp_found=yes
AC_DEFINE([HAVE_LP], [1], [Define to 1 if you have any LP solver.])
AC_MSG_RESULT([yes])
else
SOPLEX_CXXFLAGS=""
SOPLEX_LDFLAGS=""
SOPLEX_LIBS=""
AC_MSG_RESULT([no])
fi
fi
SOPLEX_LIBS="$SOPLEX_LDFLAGS $SOPLEX_LIBS"
AC_SUBST(SOPLEX_CXXFLAGS)
AC_SUBST(SOPLEX_LIBS)
AM_CONDITIONAL([HAVE_SOPLEX], [test x"$lx_soplex_found" = x"yes"])
])
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