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# searches for PARMETIS header and lib
AC_DEFUN([ALUGRID_PATH_PARMETIS],[
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([ALUGRID_PATH_METIS])
AC_ARG_WITH(parmetis,
AC_HELP_STRING([--with-parmetis=PATH],[directory with ParMETIS (version >= 3.1) inside]))
# store old values
ac_save_LDFLAGS="$LDFLAGS"
ac_save_CPPFLAGS="$CPPFLAGS"
ac_save_LIBS="$LIBS"
LIBS=""
if test x$with_metis != xyes ; then
AC_MSG_ERROR([ParMETIS only works with METIS!])
fi
## do nothing if no --with-parmetis was supplied
if test x$with_parmetis != x && test x$with_parmetis != xno ; then
if test x$with_parmetis == xyes ; then
AC_MSG_ERROR([You have to provide a directory --with-parmetis=PATH])
fi
if test -d $with_parmetis; then
# expand tilde / other stuff
PARMETISROOT=`cd $with_parmetis && pwd`
else
AC_MSG_ERROR([Path $with_parmetis supplied for --with-parmetis does not exist!])
fi
PARMETIS_LIB_PATH="$PARMETISROOT"
PARMETIS_INCLUDE_PATH="$PARMETISROOT"
# set variables so that tests can use them
REM_CPPFLAGS=$CPPFLAGS
LDFLAGS="$LDFLAGS -L$PARMETIS_LIB_PATH"
CPPFLAGS="$CPPFLAGS $PARMETISDEF -I$PARMETIS_INCLUDE_PATH"
# check for header
AC_LANG_PUSH([C])
AC_CHECK_HEADER([parmetis.h],
[PARMETIS_CPPFLAGS="$PARMETISDEF -I$PARMETIS_INCLUDE_PATH"
HAVE_PARMETIS="1"],
AC_MSG_WARN([parmetis.h not found in $PARMETIS_INCLUDE_PATH]))
CPPFLAGS="$REM_CPPFLAGS $PARMETISDEF -I$PARMETIS_INCLUDE_PATH"
REM_CPPFLAGS=
REM_LDFLAGS=$LDFLAGS
# add math library
LDFLAGS="$LDFLAGS -lm"
LIBS="-lmetis"
# if header is found...
if test x$HAVE_PARMETIS = x1 ; then
AC_CHECK_LIB(parmetis,[ParMETIS_V3_PartKway],
[PARMETIS_LIBS="-lparmetis"
PARMETIS_LDFLAGS="-L$PARMETIS_LIB_PATH"
LIBS="$LIBS $PARMETIS_LIBS"],
[HAVE_PARMETIS="0"
AC_MSG_WARN(libparmetis.a not found in $PARMETIS_LIB_PATH)])
fi
LDFLAGS=$REM_LDFLAGS
# pop default language
AC_LANG_POP
## end of parmetis check (--without wasn't set)
fi
# survived all tests?
if test x$HAVE_PARMETIS = x1 ; then
AC_SUBST(PARMETIS_LIBS, $PARMETIS_LIBS)
AC_SUBST(PARMETIS_LDFLAGS, $PARMETIS_LDFLAGS)
AC_SUBST(PARMETIS_CPPFLAGS, $PARMETIS_CPPFLAGS)
AC_DEFINE(HAVE_PARMETIS, 1, [Define to 1 if parmetis-library is found])
# add to global list
ALUGRID_PKG_LDFLAGS="$ALUGRID_PKG_LDFLAGS $PARMETIS_LDFLAGS"
ALUGRID_PKG_LIBS="$ALUGRID_PKG_LIBS $PARMETIS_LIBS"
ALUGRID_PKG_CPPFLAGS="$ALUGRID_PKG_CPPFLAGS $PARMETIS_CPPFLAGS"
# set variable for summary
with_parmetis="yes"
else
AC_SUBST(PARMETIS_LIBS, "")
AC_SUBST(PARMETIS_LDFLAGS, "")
AC_SUBST(PARMETIS_CPPFLAGS, "")
# set variable for summary
with_parmetis="no"
fi
# also tell automake
AM_CONDITIONAL(PARMETIS, test x$HAVE_PARMETIS = x1)
# reset old values
LIBS="$ac_save_LIBS"
CPPFLAGS="$ac_save_CPPFLAGS"
LDFLAGS="$ac_save_LDFLAGS"
])