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#
# CHECK_HDF5()
#
AC_DEFUN([CHECK_HDF5],[
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_PATH_XTRA])
AC_ARG_WITH(hdf5,
AC_HELP_STRING([--with-hdf5=PATH],[directory with HDF5 inside]),
# expand tilde / other stuff
eval with_hdf5=$with_hdf5
)
# store values
ac_save_CFLAGS="$CFLAGS"
ac_save_LDFLAGS="$LDFLAGS"
ac_save_LIBS="$LIBS"
LIBS=""
# start building variables
# use special HDF5-lib-path if it's set
if test x$with_hdf5 != x ; then
# extract absolute path
if test -d $with_hdf5; then
eval with_hdf5=`cd $with_hdf5 ; pwd`
else
AC_MSG_ERROR([HDF5-directory $with_hdf5 does not exist])
fi
LDFLAGS="$LDFLAGS -L$with_hdf5/lib"
HDF5_LDFLAGS="$LDFLAGS"
CPPFLAGS="$CPPFLAGS -I$with_hdf5/include"
fi
# test for an arbitrary header
AC_CHECK_HEADER([hdf5.h],
[HAVE_HDF5=1]
HDF5_CPPFLAGS="$CPPFLAGS",
[HAVE_HDF5=0])
# test for lib
if test x$HAVE_HDF5 = x1 ; then
AC_CHECK_LIB(hdf5, H5open,[HDF5_LIBS=-lhdf5],[HAVE_HDF5=0]) #,-lz, -lsz)
fi
# pre-set variable for summary
with_hdf5="no"
# did we succeed?
if test x$HAVE_HDF5 = x1 ; then
AC_SUBST(HDF5_CPPFLAGS, $HDF5_CPPFLAGS)
AC_SUBST(HDF5_LDFLAGS, $HDF5_LDFLAGS)
AC_SUBST(HDF5_LIBS, $HDF5_LIBS)
AC_DEFINE(HAVE_HDF5, 1, [Define to 1 if hdf5 was found])
# proudly show in summary
with_hdf5="yes"
fi
# also tell automake
AM_CONDITIONAL(HDF5, test x$HAVE_HDF5 = x1)
# reset values
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
LDFLAGS="$ac_save_LDFLAGS"
])
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