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configure.ac
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configure.ac
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dnl
dnl Copyright (C) 2017, Northwestern University and Argonne National Laboratory
dnl See COPYRIGHT notice in top-level directory.
dnl
dnl -*- Mode: shell-script-mode; -*-
dnl Process this file with GNU autoconf(1) to produce a configure script.
dnl
AC_REVISION([m4_esyscmd_s([if test -d .git ; then git describe --always ; fi])])
dnl When using svn, we use SVN keyword Revision to copy the unique revision
dnl number as a stamp into configure script.
dnl AC_REVISION([$Revision$])dnl
dnl autoconf v2.70 and later is required. See https://github.com/Parallel-NetCDF/PnetCDF/issues/94
dnl autoconf v2.70 was released in 2021-01-28
AC_PREREQ([2.70])
AC_INIT([PnetCDF],[1.13.0],[parallel-netcdf@mcs.anl.gov],[pnetcdf],[https://parallel-netcdf.github.io])
dnl config.h.in will be created by autoreconf (autoheader)
dnl call it right after AC_INIT, as suggested by autoconf
AC_CONFIG_HEADERS([src/include/config.h])
AH_TOP([/*
* Copyright (C) 2003, Northwestern University and Argonne National Laboratory
* See COPYRIGHT notice in top-level directory.
*/
])
AC_CONFIG_SRCDIR([src/include/pnetcdf.h.in])
AC_CONFIG_AUX_DIR([./scripts])
dnl call env or printenv to print all user environment variables in config.log
echo '-------------------------------' >& AS_MESSAGE_LOG_FD
echo ' User environment variables:' >& AS_MESSAGE_LOG_FD
echo '-------------------------------' >& AS_MESSAGE_LOG_FD
env >& AS_MESSAGE_LOG_FD
echo '-------------------------------' >& AS_MESSAGE_LOG_FD
echo '' >& AS_MESSAGE_LOG_FD
dnl Note getting command line should be done before calling AM_INIT_AUTOMAKE
dnl as AM_INIT_AUTOMAKE modifies command line $*
CONFIGURE_ARGS_CLEAN=`echo $* | tr '"' ' '`
dnl automake version 1.16.5 was released in 2021-10-03
dnl AM_INIT_AUTOMAKE([subdir-objects])
AM_INIT_AUTOMAKE([1.16.5])
dnl enable silent rules by default
AM_SILENT_RULES([yes])
dnl if maintainer mode is disabled, make will *never* attempt to rebuild
dnl configure, Makefile.ins, etc.
AM_MAINTAINER_MODE([enable])
dnl search all local macro files in folder m4
dnl m4_ifdef([AC_CONFIG_MACRO_DIRS], [AC_CONFIG_MACRO_DIRS([m4])], [AC_CONFIG_MACRO_DIR([m4])])
AC_CONFIG_MACRO_DIRS([m4])
dnl AM_EXTRA_RECURSIVE_TARGETS macro was introduced into automake 1.13
dnl m4_ifdef([AM_EXTRA_RECURSIVE_TARGETS], [AM_EXTRA_RECURSIVE_TARGETS([tests])])
AM_EXTRA_RECURSIVE_TARGETS([tests])
dnl parse the version numbers to 4 env variables
PNETCDF_VERSION_MAJOR=`echo ${PACKAGE_VERSION} | cut -d. -f1`
PNETCDF_VERSION_MINOR=`echo ${PACKAGE_VERSION} | cut -d. -f2`
PNETCDF_VERSION_SUB=`echo ${PACKAGE_VERSION} | cut -d. -f3`
PNETCDF_VERSION_PRE=`echo ${PACKAGE_VERSION} | cut -d. -f4`
dnl Note major, minor, and sub are required, but pre is not.
PNETCDF_VERSION=${PACKAGE_VERSION}
dnl Do not change the following line, It is set by SVN automatically.
dnl It defines PNETCDF_RELEASE_DATE, a string that will be used in
dnl ncmpi_inq_libvers() to generate release date
dnl SVN_DATE="$LastChangedDate$"
dnl PNETCDF_RELEASE_DATE2=`echo $SVN_DATE | cut -d' ' -f2`
dnl PNETCDF_RELEASE_DATE=`echo $SVN_DATE | cut -d' ' -f6,7,8 | cut -d')' -f1`
dnl user defined macro for printing messages for debugging
dnl add "pnc_ac_debug=yes" at command line to enable
AC_DEFUN([UD_MSG_DEBUG],
[if test "x${pnc_ac_debug}" = xyes ; then
AC_MSG_NOTICE([DEBUG: $1])
fi
]
)
UD_MSG_DEBUG([PNETCDF_VERSION_MAJOR=$PNETCDF_VERSION_MAJOR])
UD_MSG_DEBUG([PNETCDF_VERSION_MINOR=$PNETCDF_VERSION_MINOR])
UD_MSG_DEBUG([PNETCDF_VERSION_SUB=$PNETCDF_VERSION_SUB])
UD_MSG_DEBUG([PNETCDF_VERSION_PRE=$PNETCDF_VERSION_PRE])
UD_MSG_DEBUG([PNETCDF_VERSION=$PNETCDF_VERSION])
dnl UD_MSG_DEBUG([PNETCDF_RELEASE_DATE=$PNETCDF_RELEASE_DATE])
dnl AC_DEFINE_UNQUOTED(PNETCDF_VERSION_MAJOR, $PNETCDF_VERSION_MAJOR, major version number)
dnl AC_DEFINE_UNQUOTED(PNETCDF_VERSION_MINOR, $PNETCDF_VERSION_MINOR, minor version number)
dnl AC_DEFINE_UNQUOTED(PNETCDF_VERSION_SUB, $PNETCDF_VERSION_SUB, sub version number)
dnl AC_DEFINE_UNQUOTED(PNETCDF_VERSION_PRE, $PNETCDF_VERSION_PRE, pre-release string)
dnl AC_DEFINE_UNQUOTED(PNETCDF_VERSION, ["$PNETCDF_VERSION"], full PnetCDF version string)
dnl AC_DEFINE_UNQUOTED(PNETCDF_RELEASE_DATE, ["$PNETCDF_RELEASE_DATE"], PnetCDF release date string)
dnl AC_DEFINE_UNQUOTED(CONFIGURE_ARGS_CLEAN, ["$CONFIGURE_ARGS_CLEAN"], configure command-line arguments used)
AC_SUBST(PNETCDF_VERSION_MAJOR)
AC_SUBST(PNETCDF_VERSION_MINOR)
AC_SUBST(PNETCDF_VERSION_SUB)
AC_SUBST(PNETCDF_VERSION_PRE)
AC_SUBST(PNETCDF_VERSION)
dnl Note that command 'date' is not portable across Unix platforms.
dnl But release date only matters to PnetCDF developers who make the releases.
PNETCDF_RELEASE_DATE="`date '+%B %-d, %Y'`"
AC_SUBST(PNETCDF_RELEASE_DATE)
PNETCDF_RELEASE_DATE_FULL="`date '+%Y-%m-%d'`"
AC_SUBST(PNETCDF_RELEASE_DATE_FULL)
AC_SUBST(PACKAGE_VERSION)
AC_SUBST(CONFIGURE_ARGS_CLEAN)
dnl autoheader only adds these templates to the first invocation of AC_CONFIG_HEADERS
AH_TEMPLATE([ENABLE_FORTRAN], [Define if to enable Fortran feature])
AH_TEMPLATE([ENABLE_CXX], [Define if to enable C++ feature])
AH_TEMPLATE([NCBYTE_T], [Type of NC_BYTE])
AH_TEMPLATE([NCSHORT_T], [Type of NC_SHORT])
AH_TEMPLATE([NF_DOUBLEPRECISION_IS_C_], [C type for Fortran double])
AH_TEMPLATE([NF_INT1_IS_C_], [C type for Fortran INT1])
AH_TEMPLATE([NF_INT1_T], [Type for Fortran INT1])
AH_TEMPLATE([NF_INT2_IS_C_], [C type for Fortran INT2])
AH_TEMPLATE([NF_INT2_T], [Type for Fortran INT2])
AH_TEMPLATE([NF_INT_IS_C_], [C type for Fortran INT])
AH_TEMPLATE([NF_INT8_IS_C_], [C type for Fortran INT8])
AH_TEMPLATE([NF_INT8_T], [Type for Fortran INT8])
AH_TEMPLATE([NF_REAL_IS_C_], [C type for Fortran REAL])
AH_TEMPLATE([NO_IEEE_FLOAT], [Does system have IEEE FLOAT])
dnl AH_TEMPLATE([ENABLE_IN_PLACE_SWAP], [Define if to enable in-place byte swap])
dnl AH_TEMPLATE([DISABLE_IN_PLACE_SWAP],[Define if to disable in-place byte swap])
AH_TEMPLATE([ENABLE_SUBFILING], [Define if to enable subfiling feature])
AH_TEMPLATE([ENABLE_NETCDF4], [Define if to enable NetCDF-4 support])
AH_TEMPLATE([ENABLE_ADIOS], [Define if to enable ADIOS BP read feature])
AH_TEMPLATE([HDF5_VER_GE_1_10_4], [Define if HDF5 version is at least 1.10.4])
AH_TEMPLATE([NETCDF_GE_4_5_0], [Define if NetCDF version is at least 4.5.0])
AH_TEMPLATE([PNC_MALLOC_TRACE], [Define if to enable malloc tracing])
AH_TEMPLATE([RELAX_COORD_BOUND], [Define if relaxed coordinate check is enabled])
AH_TEMPLATE([ENABLE_NULL_BYTE_HEADER_PADDING], [Define if to enable strict null-byte padding in file header])
AH_TEMPLATE([ENABLE_BURST_BUFFER], [Define if to enable burst buffer feature])
AH_TEMPLATE([PNETCDF_PROFILING], [Define if to enable PnetCDF internal performance profiling])
AH_TEMPLATE([ENABLE_THREAD_SAFE], [Define if to enable thread-safe capability])
AH_TEMPLATE([ENABLE_REQ_AGGREGATION], [Define if able to support request aggregation in nonblocking routines])
dnl AH_TEMPLATE([HAVE_MPI_COUNT], [Define if type MPI_Count is defined])
AH_TEMPLATE([HAVE_MPI_LARGE_COUNT], [Define if required MPI APIs have arguments of type MPI_Count])
AH_TOP([#ifndef _CONFIG_H
#define _CONFIG_H])
AH_BOTTOM([#include <nctypes.h>
#endif])
dnl an option to use a customized rm command
RM=rm
AC_ARG_VAR(RM, Command for deleting files or directories. @<:@default: rm@:>@)
if test "x${RM}" != x ; then
dnl ${RM} set by user may contain flags
RM_CMD=`echo ${RM} | cut -d' ' -f1`
# use "if ! test" is not portable, according to autoconf user guide
if test -f ${RM_CMD} ; then :; else
AC_CHECK_PROG([rm_cmd], [${RM_CMD}], [yes], [no])
if test "x${rm_cmd}" = xno ; then
RM=rm
fi
fi
fi
UD_MSG_DEBUG([RM=$RM])
dnl AC_PROG_SED and AC_PROG_GREP are only available on autoconf 2.60 and later
AC_PROG_AWK
AC_PROG_GREP
AC_PROG_EGREP
AC_PROG_SED
dnl check sed command option -i and set SED_I (this requires RM defined)
UD_PROG_SED_I
AC_ARG_ENABLE(echo,
[AS_HELP_STRING([--enable-echo],
[Turn on strong echoing. @<:@default: disabled@:>@])],
[set -x]
)
AC_ARG_ENABLE(install-examples,
[AS_HELP_STRING([--enable-install-examples],
[Install example programs under $prefix/examples. @<:@default: disabled@:>@])],
[install_examples=yes], [install_examples=no]
)
AM_CONDITIONAL(INSTALL_EXAMPLES, [test x$install_examples = xyes])
MPI_INSTALL=
AC_ARG_WITH(mpi,
[AS_HELP_STRING([--with-mpi=DIR],
[Provide the MPI installation path in DIR.])],
[ dnl this clause is run when --with-mpi or --without-mpi is used
if test "x${withval}" = xno ; then
AC_MSG_ERROR([
-----------------------------------------------------------------------
PnetCDF is built on top of MPI. Configure option --without-mpi or
--with-mpi=no should not be used. Abort.
-----------------------------------------------------------------------])
elif test "x${withval}" = x ; then
# when "--with-mpi=" is used
AC_MSG_ERROR(--with-mpi is set but the value is NULL)
elif test "x${withval}" != xyes && test ! -d "${withval}" ; then
# user may use --with-mpi without an argument, which results in withval
# being "yes". This case is OK and we simply take no action, as PnetCDF
# requires MPI compilers and will check them.
AC_MSG_ERROR(Directory '${withval}' specified in --with-mpi does not exist or is not a directory)
fi
MPI_INSTALL=${withval}
]
)
if test "x$MPI_INSTALL" = xyes ; then
# when "--with-mpi" is used
MPI_INSTALL=
fi
dnl MPI_INSTALL will be referred in UD_MPI_PATH_PROGS and UD_MPI_PATH_PROG
dnl defined in acinclude.m4
AC_ARG_VAR(MPICC, [MPI C compiler, @<:@default: CC@:>@])
AC_ARG_VAR(MPICXX, [MPI C++ compiler, @<:@default: CXX@:>@])
AC_ARG_VAR(MPIF77, [MPI Fortran 77 compiler, @<:@default: F77@:>@])
AC_ARG_VAR(MPIF90, [MPI Fortran 90 compiler, @<:@default: FC@:>@])
dnl AC_ARG_VAR(CPPFLAGS, [Preprocessor options for C and C++ compilers, e.g. -I<include_dir> if you have headers in a nonstandard directory <include_dir>])
dnl AC_ARG_VAR(CFLAGS, Debugging and optimization options for the C compiler)
dnl AC_ARG_VAR(CXXFLAGS, Debugging and optimization options for the C++ compiler)
dnl AC_ARG_VAR(FFLAGS, Debugging and optimization options for the Fortran 77 compiler)
dnl AC_ARG_VAR(FCFLAGS, Debugging and optimization options for the Fortran 90 compiler)
CANDIDATE_MPICC="mpicc mpicc_r"
CANDIDATE_MPICXX="${MPICXX} mpicxx mpic++ mpiCC mpcxx mpc++ mpicxx_r mpiCC_r mpcxx_r mpic++_r mpc++_r"
CANDIDATE_MPIF77="${MPIF77} mpif77 mpif77_r mpf77 mpf77_r"
CANDIDATE_MPIF90="${MPIF90} mpif90 mpif90_r mpf90 mpf90_r mpif95 mpif95_r mpf95 mpf95_r"
dnl add GNU MPI compilers
CANDIDATE_MPICC="$CANDIDATE_MPICC mpigcc mpgcc mpigcc_r mpgcc_r"
CANDIDATE_MPICXX="$CANDIDATE_MPICXX mpig++ mpg++ mpig++_r mpg++_r"
CANDIDATE_MPIF77="$CANDIDATE_MPIF77 mpig77 mpig77_r mpg77 mpg77_r"
CANDIDATE_MPIF90="$CANDIDATE_MPIF90 mpigfortran mpgfortran mpigfortran_r mpgfortran_r"
dnl add IBM MPI compilers
CANDIDATE_MPICC="$CANDIDATE_MPICC mpcc_r mpcc mpixlc_r mpixlc"
CANDIDATE_MPICXX="$CANDIDATE_MPICXX mpCC_r mpCC mpixlcxx_r mpixlcxx mpixlC_r mpixlC"
CANDIDATE_MPIF77="$CANDIDATE_MPIF77 mpixlf77_r mpixlf77"
CANDIDATE_MPIF90="$CANDIDATE_MPIF90 mpixlf90_r mpixlf90"
dnl add IBM BGL MPI compilers
CANDIDATE_MPICC="$CANDIDATE_MPICC blrts_xlc mpxlc_r mpxlc"
CANDIDATE_MPICXX="$CANDIDATE_MPICXX blrts_xlC mpxlC_r mpxlC mpixlc++ mpxlcxx mpxlc++ mpxlCC mpixlc++_r mpxlcxx_r mpxlc++_r mpxlCC_r"
CANDIDATE_MPIF77="$CANDIDATE_MPIF77 blrts_xlf mpxlf_r mpxlf mpxlf77 mpxlf77_r mpixlf mpixlf_r"
CANDIDATE_MPIF90="$CANDIDATE_MPIF90 blrts_xlf90 mpxlf90_r mpxlf90 mpxlf95_r mpxlf95 mpixlf95 mpixlf95_r"
dnl add Fujitsu MPI compilers
CANDIDATE_MPICC="$CANDIDATE_MPICC mpifccpx"
CANDIDATE_MPICXX="$CANDIDATE_MPICXX mpiFCCpx"
CANDIDATE_MPIF77="$CANDIDATE_MPIF77 mpifrtpx"
CANDIDATE_MPIF90="$CANDIDATE_MPIF90 mpifrtpx"
dnl add Cray MPI compiler wrappers
CANDIDATE_MPICC="$CANDIDATE_MPICC cc"
CANDIDATE_MPICXX="$CANDIDATE_MPICXX CC"
CANDIDATE_MPIF77="$CANDIDATE_MPIF77 ftn"
CANDIDATE_MPIF90="$CANDIDATE_MPIF90 ftn"
dnl add Intel MPI compiler wrappers
CANDIDATE_MPICC="$CANDIDATE_MPICC mpiicc icc"
CANDIDATE_MPICXX="$CANDIDATE_MPICXX mpiicpc mpiicxx mpiic++ mpiiCC icpc"
CANDIDATE_MPIF77="$CANDIDATE_MPIF77 mpiifort mpiifc mpiif77 ifort"
CANDIDATE_MPIF90="$CANDIDATE_MPIF90 mpiifort mpiifc mpiif95 mpiif90 ifort"
dnl add PGI MPI compiler wrappers
CANDIDATE_MPICC="$CANDIDATE_MPICC mpipgcc mppgcc"
CANDIDATE_MPICXX="$CANDIDATE_MPICXX mpipgCC mppgCC"
CANDIDATE_MPIF77="$CANDIDATE_MPIF77 mpipgf77 mppgf77"
CANDIDATE_MPIF90="$CANDIDATE_MPIF90 mpipgf90 mpipgf95 mppgf90 mppgf95 "
# save MPICC, MPICXX, MPIF77, MPIF90 set by user before modifying them
ac_user_MPICC=$MPICC
ac_user_MPICXX=$MPICXX
ac_user_MPIF77=$MPIF77
ac_user_MPIF90=$MPIF90
# Logic of checking MPICC (same for MPICXX, MPIF77, MPIF90):
# if MPICC environment variable is set
# then use MPICC
# else if --with-mpi is set
# then use CANDIDATE_MPICC to find MPICC in MPI_INSTALL
# else use CANDIDATE_MPICC to find MPICC in PATH
# if MPICC still not set and CC is set
# then set MPICC to CC
# else MPICC is not found and error out
dnl Obtain full paths of MPICC
if test "x${MPICC}" = x ; then
dnl if MPICC has not been set by users, then search from
dnl CANDIDATE_MPICC, and find the full path of MPICC
dnl UD_MPI_PATH_PROGS also check MPI compilers in MPI_INSTALL
UD_MPI_PATH_PROGS([MPICC], [$CANDIDATE_MPICC])
else
dnl check whether user specified MPICC exists
UD_MPI_PATH_PROG([MPICC], [$MPICC])
fi
dnl If MPICC is still not set and CC is set, then set MPICC to CC.
if test "x$MPICC" = x && test "x$CC" != x ; then
dnl check whether user specified CC exists
UD_MPI_PATH_PROG([MPICC], [$CC])
fi
if test "x${MPICC}" = x ; then
if test "x$ac_user_MPICC" = x ; then
ERR_MSG="No MPI C compiler can be found"
else
ERR_MSG="Specified MPI C compiler \"$ac_user_MPICC\" cannot be found"
fi
if test "x$MPI_INSTALL" != x ; then
ERR_MSG="$ERR_MSG under $MPI_INSTALL"
fi
AC_MSG_ERROR([
-----------------------------------------------------------------------
$ERR_MSG
PnetCDF requires a working MPI C compiler. Please specify the location
of an MPI C compiler, either in the MPICC environment variable
(not CC variable) or through --with-mpi configure flag. Abort.
-----------------------------------------------------------------------])
fi
UD_MSG_DEBUG([MPICC=$MPICC])
dnl Now MPICC is configured, do some basic compiler tests
CC=${MPICC}
AC_PROG_CC
dnl AM_PROG_CC_C_O
dnl get compiler vendor in ax_cv_c_compiler_vendor (e.g. gnu, intel)
AX_COMPILER_VENDOR
if test "x${ax_cv_c_compiler_vendor}" = xgnu ; then
dnl gcc command-line option "-dumpversion" can also show version.
AC_MSG_CHECKING([whether gcc version is greater than 10.0.0])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#if __GNUC__ < 10
#error gcc version < 10.0.0
#endif
]])], [gcc_ge_10=yes], [gcc_ge_10=no])
AC_MSG_RESULT([$gcc_ge_10])
fi
dnl get base compiler command of MPI C compiler wrapper in
dnl ac_cv_mpi_compiler_base_MPICC (e.g. /usr/bin/gcc)
MPI_COMPILER_BASE(MPICC)
dnl Set output variable CPP to a command that runs the C preprocessor.
dnl Some C compilers require -E to be used as C preprocessor.
AC_PROG_CPP
dnl this call needs at least autoconf version 2.60
dnl AC_USE_SYSTEM_EXTENSIONS
dnl enable large file support
AC_SYS_LARGEFILE
dnl UD_PROG_CC_MAKEDEPEND
dnl AC_HEADER_STDC
dnl AC_CHECK_HEADERS([malloc.h])
dnl check if MPICC works for basic MPI call: MPI_Comm_rank()
AC_CHECK_FUNC([MPI_Comm_rank], [],
dnl maybe -lmpi is needed at link stage
[AC_SEARCH_LIBS([MPI_Comm_rank], [mpi mpich], [],
[AC_MSG_ERROR([
-----------------------------------------------------------------------
Invalid MPI compiler specified or detected: "${MPICC}"
A working MPI C compiler is required. Please specify the location
of one either in the MPICC environment variable (not CC variable) or
through --with-mpi configure flag. Abort.
-----------------------------------------------------------------------])
])])
AC_CHECK_FUNC([MPI_File_open], [],
dnl maybe -lmpio is needed at link stage
[AC_SEARCH_LIBS([MPI_File_open], [mpi mpio], [],
[AC_MSG_ERROR([
-----------------------------------------------------------------------
The underneath MPI implementation does not support MPI-IO.
PnetCDF requires MPI-IO support to work properly. Abort.
-----------------------------------------------------------------------])
])])
dnl check the base of MPICC compiler
AM_CONDITIONAL(MPICC_IS_XLC, [test "x${ax_cv_c_compiler_vendor}" = xibm])
AM_CONDITIONAL(MPICC_IS_PGCC, [test "x${ax_cv_c_compiler_vendor}" = xportland])
AM_CONDITIONAL(MPICC_IS_FCCPX,[test "x${ax_cv_c_compiler_vendor}" = xfujitsu])
dnl print out MPI version and vendor information
CHECK_MPI_VERSION
dnl PnetCDF requires MPI-IO support and MPI-IO was first introduced in MPI 2.0
if test "x$mpi_version" = x ; then
AC_MSG_ERROR([
-----------------------------------------------------------------------
PnetCDF requires an MPI library that supports MPI standard version
2.0 and later. However, such information cannot be detected from the
supplied MPI C compiler:
$MPICC
Abort.
-----------------------------------------------------------------------])
fi
if test "$mpi_version" -lt "2" ; then
AC_MSG_ERROR([
-----------------------------------------------------------------------
PnetCDF requires an MPI library that supports MPI standard version
2.0 and later. The supplied MPI library only supports MPI $mpi_version.
Abort.
-----------------------------------------------------------------------])
fi
dnl check whether MPICC is built using a C++ compiler
AC_MSG_CHECKING([whether $MPICC is a wrapper of a C++ compiler])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [int class=0;])],
[AC_MSG_RESULT(no)],
[AC_MSG_ERROR([
-----------------------------------------------------------------------
PnetCDF requires the supplied MPI C compiler is not a wrapper of a
C++ compiler. MPI C compiler is $MPICC
Abort.
-----------------------------------------------------------------------])]
)
dnl compute canonical system types
AC_CANONICAL_BUILD
AC_CANONICAL_HOST
dnl AM_PROG_AR is first recognized/traced in autoconf 2.68
dnl Use it only if we want support for unusual archivers such as Microsoft
dnl lib.. AM_PROG_AR must be called before LT_INIT
AM_PROG_AR
dnl UD_PROG_AR()
dnl UD_PROG_NM()
dnl We could use the PAC check for ranlib (it also makes sure that ranlib
dnl works, which is not always true, particularly when GNU tools are
dnl installed on a system that does not have (or need) ranlib
dnl libtoolize: `AC_PROG_RANLIB' is rendered obsolete by `LT_INIT'
dnl AC_PROG_RANLIB
dnl libtool v2.4.6 was released in 2015-02-15
dnl Travis CI only has v2.4.2
LT_PREREQ([2.4.6])
dnl LT_INIT([dlopen disable-shared])
dnl LT_INIT([dlopen])
dnl LT_INIT([disable-shared]) # build without shared libraries
LT_INIT
dnl check MPI C++ compiler
AC_ARG_ENABLE(cxx,
[AS_HELP_STRING([--disable-cxx],
[Turn off support for the C++ interface,
if you only need the C interface. @<:@default: enabled@:>@])],
[enable_cxx=${enableval}], [enable_cxx=auto]
)
UD_MSG_DEBUG(enable_cxx=$enable_cxx)
if test "x${enable_cxx}" != xno ; then
dnl Obtain full paths of MPICXX
if test "x${MPICXX}" = x ; then
dnl if MPICXX has not been set by users, then search from
dnl CANDIDATE_MPICXX, and find the full path of MPICXX
dnl UD_MPI_PATH_PROGS also check MPI compilers in MPI_INSTALL
UD_MPI_PATH_PROGS([MPICXX], [$CANDIDATE_MPICXX])
else
dnl check whether user specified MPICXX exists
UD_MPI_PATH_PROG([MPICXX], [$MPICXX])
fi
dnl If MPICXX is still not set and CXX is set, then set MPICXX to CXX.
if test "x$MPICXX" = x && test "x$CXX" != x ; then
dnl check whether user specified CXX exists
UD_MPI_PATH_PROG([MPICXX], [$CXX])
fi
if test "x${MPICXX}" = x ; then
if test "x$ac_user_MPICXX" = x ; then
ERR_MSG="No MPI C++ compiler can be found"
else
ERR_MSG="Specified MPI C++ compiler \"$ac_user_MPICXX\" cannot be found"
fi
if test "x$MPI_INSTALL" != x ; then
ERR_MSG="$ERR_MSG under $MPI_INSTALL"
fi
if test "x${enable_cxx}" = xyes ; then
dnl --enable-cxx is explicitly set at command line
AC_MSG_ERROR([
-----------------------------------------------------------------------
$ERR_MSG.
Please specify the location of the MPI C++ compiler, either in the
MPICXX environment variable or the --with-mpi configure flag. Abort.
-----------------------------------------------------------------------])
else
dnl enable_cxx is auto, i.e. --enable-cxx is not set at command line
AC_MSG_WARN([
-----------------------------------------------------------------------
$ERR_MSG.
Thus the C++ feature is disabled.
The location of the MPI C++ compiler can be specified either in the
MPICXX environment variable or through the --with-mpi configure flag.
-----------------------------------------------------------------------])
fi
fi
UD_MSG_DEBUG([MPICXX=$MPICXX])
fi
if test "x${enable_cxx}" = xno || test "x${MPICXX}" = x ; then
dnl when cxx is explicitly disabled or no MPICXX can be found
has_mpicxx=no
else
has_mpicxx=yes
CXX=${MPICXX}
fi
dnl Must invoke AC_PROG_CXX here, because AC_PROG_CXX cannot be called
dnl conditionally in Automake, otherwise got "error: conditional
dnl "am__fastdepCXX" was never defined." So, if has_mpicxx is no, then
dnl AC_PROG_CXX will search for g++. However, g++ will not be used at all.
AC_PROG_CXX
dnl autoconf 2.59 has not yet implemented AC_PROG_CXX_C_O
dnl AC_PROG_CXX_C_O
if test "x${has_mpicxx}" = xyes ; then
dnl test if MPICXX can compile an MPI-IO program
AC_LANG_PUSH(C++)
dnl get compiler vendor in ax_cv_cxx_compiler_vendor (e.g. gnu, intel)
AX_COMPILER_VENDOR
dnl get base compiler command of MPI C++ compiler wrapper in
dnl ac_cv_mpi_compiler_base_MPICXX (e.g. /usr/bin/g++)
MPI_COMPILER_BASE(MPICXX)
AC_CHECK_FUNC([MPI_File_close], [],
dnl maybe -lmpi++ is needed at link stage
[AC_SEARCH_LIBS([MPI_File_close], [mpi mpio mpi++ mpichcxx mpi_cxx], [],
[has_mpicxx=no])])
AC_LANG_POP(C++)
if test "x$has_mpicxx" = xno ; then
if test "x${enable_cxx}" = xyes ; then
AC_MSG_ERROR([
-----------------------------------------------------------------------
Explicitly requesting C++ feature, but "${MPICXX}"
is not a working MPI C++ compiler. Abort.
-----------------------------------------------------------------------])
else dnl in case enable_cxx is auto
AC_MSG_WARN([
-----------------------------------------------------------------------
"${MPICXX}" is not a working MPI C++ compiler.
Thus, the C++ feature is disabled.
-----------------------------------------------------------------------])
fi
else
UD_CHECK_MPI_CPP_SEEK_SET
UD_MSG_DEBUG(ac_cv_CHECK_MPI_CPP_SEEK_SET=$ac_cv_CHECK_MPI_CPP_SEEK_SET)
dnl When using older version Intel compilers 4.x, SEEK_SET will be
dnl reported as redefined. We need to add the following C++ preprocessor
dnl flags. See doc/README.INTEL
if test "x${ac_cv_CHECK_MPI_CPP_SEEK_SET}" = xyes ; then
SEEK_SET_REDEFINED=yes
fi
fi
fi
if test "x${has_mpicxx}" = xyes ; then
ENABLE_CXX=1
AC_DEFINE(ENABLE_CXX)
else
ENABLE_CXX=0
fi
AC_SUBST(ENABLE_CXX)
AC_SUBST(has_mpicxx)dnl for src/utils/pnetcdf-config.in
UD_MSG_DEBUG(has_mpicxx=$has_mpicxx)
AM_CONDITIONAL(HAS_MPICXX, [test x$has_mpicxx = xyes])
AM_CONDITIONAL(SEEK_SET_REDEFINED, [test x$ac_cv_CHECK_MPI_CPP_SEEK_SET = xyes])
dnl Note this must be done after the type of C compiler is determined
AC_ARG_ENABLE(strict,
[AS_HELP_STRING([--enable-strict],
[Turn on strict debugging with gcc. @<:@default: disabled@:>@])],
[enable_strict=${enableval}], [enable_strict=no]
)
if test "x${enable_strict}" = xyes; then
if test "x${GCC}" = xyes; then
CFLAGS="$CFLAGS -Wall -Wstrict-prototypes -Wmissing-prototypes -Wundef -Wpointer-arith -Wbad-function-cast"
else
AC_MSG_WARN([--enable-strict is for GNU compiler only])
enable_strict=no
fi
fi
AC_ARG_ENABLE(fortran,
[AS_HELP_STRING([--disable-fortran],
[Turn off support for the Fortran interface,
if you only need the C interface. @<:@default: enabled@:>@])],
[enable_fortran=${enableval}], [enable_fortran=auto]
)
if test "x${enable_fortran}" = xno ; then
has_fortran=no
else
has_fortran=yes
dnl Obtain full paths of MPIF77
if test "x${MPIF77}" = x ; then
dnl if MPIF77 has not been set by users, then search from
dnl CANDIDATE_MPIF77, and find the full path of MPIF77
dnl UD_MPI_PATH_PROGS also check MPI compilers in MPI_INSTALL
UD_MPI_PATH_PROGS([MPIF77], [$CANDIDATE_MPIF77])
else
dnl check whether user specified MPIF77 exists
UD_MPI_PATH_PROG([MPIF77], [$MPIF77])
fi
dnl If MPIF77 is still not set and F77 is set, then set MPIF77 to F77.
if test "x$MPIF77" = x && test "x$F77" != x ; then
dnl check whether user specified F77 exists
UD_MPI_PATH_PROG([MPIF77], [$F77])
fi
dnl If MPIF77 is still not set and FC is set, then set MPIF77 to FC.
if test "x$MPIF77" = x && test "x$FC" != x ; then
dnl check whether user specified FC exists
UD_MPI_PATH_PROG([MPIF77], [$FC])
fi
if test "x${MPIF77}" = x ; then
has_fortran=no
if test "x$ac_user_MPIF77" = x ; then
ERR_MSG="No MPI Fortran 77 compiler can be found"
else
ERR_MSG="Specified MPI Fortran 77 compiler \"$ac_user_MPIF77\" cannot be found"
fi
if test "x$MPI_INSTALL" != x ; then
ERR_MSG="$ERR_MSG under $MPI_INSTALL"
fi
if test "x${enable_fortran}" = xyes ; then
dnl --enable-fortran is explicitly set at command line
AC_MSG_ERROR([
-----------------------------------------------------------------------
$ERR_MSG.
Please specify the location of the MPI Fortran 77 compiler, either in the
MPIF77 environment variable or the --with-mpi configure flag. Abort.
-----------------------------------------------------------------------])
else
dnl enable_fortran is auto, i.e. --enable-fortran is not set at command line
AC_MSG_WARN([
-----------------------------------------------------------------------
$ERR_MSG.
Thus, the Fortran feature is disabled.
The location of the MPI Fortran 77 compiler can be specified either in the
MPIF77 environment variable or through the --with-mpi configure flag.
-----------------------------------------------------------------------])
fi
fi
fi
if test "x${has_fortran}" = xyes ; then
dnl Obtain full paths of MPIF90
if test "x${MPIF90}" = x ; then
dnl if MPIF90 has not been set by users, then search from
dnl CANDIDATE_MPIF90, and find the full path of MPIF90
dnl UD_MPI_PATH_PROGS also check MPI compilers in MPI_INSTALL
UD_MPI_PATH_PROGS([MPIF90], [$CANDIDATE_MPIF90])
else
dnl check whether user specified MPIF90 exists
UD_MPI_PATH_PROG([MPIF90], [$MPIF90])
fi
dnl If MPIF90 is still not set and F90 is set, then set MPIF90 to F90.
if test "x$MPIF90" = x && test "x$F90" != x ; then
dnl check whether user specified F90 exists
UD_MPI_PATH_PROG([MPIF90], [$F90])
fi
dnl If MPIF90 is still not set and FC is set, then set MPIF90 to FC.
if test "x$MPIF90" = x && test "x$FC" != x ; then
dnl check whether user specified FC exists
UD_MPI_PATH_PROG([MPIF90], [$FC])
fi
if test "x${MPIF90}" = x ; then
has_fortran=no
if test "x$ac_user_MPIF90" = x ; then
ERR_MSG="No MPI Fortran 90 compiler can be found"
else
ERR_MSG="Specified MPI Fortran 90 compiler \"$ac_user_MPIF90\" cannot be found"
fi
if test "x$MPI_INSTALL" != x ; then
ERR_MSG="$ERR_MSG under $MPI_INSTALL"
fi
if test "x${enable_fortran}" = xyes ; then
dnl --enable-fortran is explicitly set at command line
AC_MSG_ERROR([
-----------------------------------------------------------------------
$ERR_MSG.
Please specify the location of the MPI Fortran 90 compiler, either in the
MPIF90 environment variable or the --with-mpi configure flag. Abort.
-----------------------------------------------------------------------])
else
dnl enable_fortran is auto, i.e. --enable-fortran is not set at command line
AC_MSG_WARN([
-----------------------------------------------------------------------
$ERR_MSG.
Thus, the Fortran feature is disabled.
The location of the MPI Fortran 90 compiler can be specified either in the
MPIF90 environment variable or through the --with-mpi configure flag.
-----------------------------------------------------------------------])
fi
fi
fi
UD_MSG_DEBUG(has_fortran=${has_fortran})
UD_MSG_DEBUG([MPIF77=$MPIF77])
UD_MSG_DEBUG([MPIF90=$MPIF90])
if test "x${has_fortran}" = xyes ; then
dnl Check if MPIF77 is a valid MPI compiler
F77=${MPIF77}
AC_PROG_F77
dnl FFLAGS is set in AC_PROG_F77
AC_F77_LIBRARY_LDFLAGS
AC_MSG_CHECKING([whether $MPIF77 is a valid MPI compiler])
AC_LANG_PUSH([Fortran 77])
dnl check if can use mpif.h
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
include "mpif.h"
integer err, rank
call MPI_Comm_rank(MPI_COMM_WORLD, rank, err)]])],
[valid_mpif77=yes],[valid_mpif77=no])
AC_LANG_POP([Fortran 77])
AC_MSG_RESULT($valid_mpif77)
if test "x${valid_mpif77}" = xno ; then
has_fortran=no
if test "x${enable_fortran}" = xyes ; then
AC_MSG_ERROR([
-----------------------------------------------------------------------
Invalid MPI Fortran 77 compiler: "${MPIF77}"
A working MPI Fortran 77 compiler is required. Please specify the
location of a valid MPI Fortran 77 compiler, either in the MPIF77
environment variable or through --with-mpi configure flag. Abort.
-----------------------------------------------------------------------])
else
AC_MSG_WARN([
-----------------------------------------------------------------------
"${MPIF77}" is not a working MPI Fortran 77 compiler.
Thus, the Fortran feature is disabled.
-----------------------------------------------------------------------])
fi
fi
fi
mpi_mod=no
if test "x${has_fortran}" = xyes ; then
dnl Check if MPIF90 is a valid MPI compiler
FC=${MPIF90}
AC_PROG_FC
dnl FCFLAGS is set in AC_PROG_FC
dnl FCLIBS_save="$FCLIBS"
dnl FCLIBS=""
AC_FC_LIBRARY_LDFLAGS
dnl UD_MSG_DEBUG([before FCLIBS=$FCLIBS])
dnl The autoconf macro for finding FCLIBS sometimes makes mistakes
dnl (particularly with the Fujitsu frt compiler). This next step
dnl first sees if the FCLIBS is valid with the Fortran compiler
dnl This also happens to Solaris Studio Fortran compilers
dnl AC_PROG_FC_FCLIBS_VALID
dnl Now see if FCLIBS works with the C compiler (remove invalid ones)
dnl PAC_PROG_FC_CHECK_FCLIBS
dnl replace FLIBS and F90LIBS with FCLIBS
dnl UD_MSG_DEBUG([after FCLIBS=$FCLIBS])
dnl FLIBS="$FCLIBS"
dnl F90LIBS="$FCLIBS"
AC_MSG_CHECKING([whether mpi.mod is available])
AC_LANG_PUSH([Fortran])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[ use mpi]])],
[mpi_mod=yes], [mpi_mod=no]
)
AC_MSG_RESULT($mpi_mod)
AC_MSG_CHECKING([whether $MPIF90 is a valid MPI compiler])
if test "x${mpi_mod}" = xyes ; then
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
use mpi
integer err, rank
call MPI_Comm_rank(MPI_COMM_WORLD, rank, err)]])],
[valid_mpif90=yes],[valid_mpif90=no]
)
else
AC_MSG_WARN([Fortran module mpi.mod is not available or invalid. Use mpif.h instead.])
dnl mpi.mod is not available, check if can use mpif.h
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
include "mpif.h"
integer err, rank
call MPI_Comm_rank(MPI_COMM_WORLD, rank, err)]])],
[valid_mpif90=yes],[valid_mpif90=no]
)
fi
AC_LANG_POP([Fortran])
AC_MSG_RESULT($valid_mpif90)
if test "x${valid_mpif90}" = xno ; then
has_fortran=no
if test "x${enable_fortran}" = xyes ; then
AC_MSG_ERROR([
-----------------------------------------------------------------------
Invalid MPI Fortran 90 compiler: "${MPIF90}"
A working MPI Fortran 90 compiler is required. Please specify the
location of a valid MPI Fortran 90 compiler, either in the MPIF90
environment variable or through --with-mpi configure flag. Abort.
-----------------------------------------------------------------------])
fi
AC_MSG_WARN([
-----------------------------------------------------------------------
"${MPIF90}" is not a working MPI Fortran 90 compiler.
Thus, the Fortran feature is disabled.
-----------------------------------------------------------------------])
else
if test "x${mpi_mod}" = xyes ; then
USE_MPIF_HEADER="use mpi, only: MPI_OFFSET_KIND"
else
USE_MPIF_HEADER="include \"mpif.h\""
fi
AC_SUBST(USE_MPIF_HEADER)
fi
fi
if test "x${has_fortran}" = xyes ; then
ENABLE_FORTRAN=1
AC_DEFINE(ENABLE_FORTRAN)
else
ENABLE_FORTRAN=0
fi
AC_SUBST(ENABLE_FORTRAN)
AC_SUBST(has_fortran)dnl for src/utils/pnetcdf-config.in
AM_CONDITIONAL(HAS_FORTRAN, [test x$has_fortran = xyes])
AM_CONDITIONAL(HAVE_MPI_MOD, [test x$mpi_mod = xyes])
if test "x${has_fortran}" = xyes ; then
if test "x${enable_strict}" = xyes && test "x${GFC}" = xyes; then
dnl not all Fortran compilers recognize -Wall
FFLAGS="$FFLAGS -Wall"
FCFLAGS="$FCFLAGS -Wall"
fi
dnl AC_SUBST(FLIBS)
dnl AC_SUBST(FCLIBS)
dnl AC_SUBST(F90LIBS)
dnl AC_SUBST(FLDFLAGS)
dnl AC_SUBST(F90LDFLAGS)
fi
ac_f77_support_freeform=no
if test "x${has_fortran}" = xyes ; then
FC_saved=${FC}
FC=${MPIF77}
dnl customized AC_FC_FREEFORM: to just get ac_cv_fc_freeform without
dnl appending ac_cv_fc_freeform to FCFLAGS
dnl ac_cv_fc_freeform is the flag for enabling Fortran free form
dnl we use this flag only in testing programs
UD_FC_FREEFORM
if test "x${ac_cv_fc_freeform}" != xunknown ; then
ac_f77_support_freeform=yes
FFREEFORMFLAG=${ac_cv_fc_freeform}
fi
UD_MSG_DEBUG([FFREEFORMFLAG=$FFREEFORMFLAG])
AC_SUBST(FFREEFORMFLAG)
FC=${FC_saved}
fi
AM_CONDITIONAL(HAVE_F77_SUPPORT_FREEFORM, [test x$ac_f77_support_freeform = xyes])
if test "x${has_fortran}" = xyes ; then
dnl GNU Fortran compiler automatically invokes preprocessor for files with
dnl extension .F and .F90. To manually invoke the preprocessor on any file,
dnl use compiler flag -cpp. To disable, use -nocpp.
dnl For other compilers, we need to find the compile flags for Fortran
dnl preprocessor.
dnl AC_FC_PP_SRCEXT is first introduced in autoconf 2.69
dnl steal AC_FC_PP_SRCEXT from autoconf 2.69 to make UD_FC_PP_SRCEXT
dnl UD_FC_PP_SRCEXT([F]) dnl sets ac_cv_fc_pp_srcext_F
dnl UD_FC_PP_SRCEXT([F90]) dnl sets ac_cv_fc_pp_srcext_F90
AC_FC_PP_SRCEXT([F]) dnl sets ac_cv_fc_pp_srcext_F
AC_FC_PP_SRCEXT([F90]) dnl sets ac_cv_fc_pp_srcext_F90
dnl compiler command-line define preprocessor flag, result in ${FC_DEFINE}
dnl Not all Fortran compilers use -D
dnl UD_FC_PP_DEFINE
dnl AC_FC_PP_DEFINE is first introduced in autoconf 2.69
AC_FC_PP_DEFINE
dnl check compiler flags for file extensions in .f .F .f90 .F90
AC_FC_SRCEXT([f])
AC_FC_SRCEXT([F])
AC_FC_SRCEXT([f90])
AC_FC_SRCEXT([F90])
AC_LANG_PUSH([Fortran])
dnl get compiler vendor in ax_cv_fc_compiler_vendor (e.g. gnu, intel)
AX_COMPILER_VENDOR
AC_LANG_POP([Fortran])
dnl get base compiler command of MPI Fortran compiler wrapper in
dnl ac_cv_mpi_compiler_base_MPIF90 (e.g. /usr/bin/gfortran)
MPI_COMPILER_BASE(MPIF90)
dnl customized AC_FC_FIXEDFORM: to just get ac_cv_fc_fixedform without
dnl appending ac_cv_fc_fixedform to FCFLAGS
dnl ac_cv_fc_fixedform flag is for enabling Fortran fixed form.
dnl we use this flag only in testing programs
UD_FC_FIXEDFORM
FFIXEDFORMFLAG=${ac_cv_fc_fixedform}
UD_MSG_DEBUG([FC=$FC FFIXEDFORMFLAG=$FFIXEDFORMFLAG])
AC_SUBST(FFIXEDFORMFLAG)
dnl Checking for Fortran types also determines the Fortran name mangling
dnl and places the value into FCALLSCSUB as the C name corresponding
dnl to the Fortran name SUB
AC_FC_FUNC(sub, [FCALLSCSUB])
dnl determine the correct name mapping
case $FCALLSCSUB in
SUB)
AC_DEFINE(F77_NAME_UPPER,,[Define if Fortran names are uppercase])
;;
sub_)
dnl This is the hard case. gcc uses one _ unless the name includes
dnl an underscore, in which case it gets two trailing underscores.
dnl Use essentially the same configure code that the original configure
dnl used to determine SUB
AC_MSG_CHECKING([for C-equivalent to Fortran routine "SUB_A"])
dnl "
AC_FC_FUNC(sub_a, [FCALLSCSUBA])
AC_MSG_RESULT($FCALLSCSUBA)
case $FCALLSCSUBA in
sub_a__)
AC_DEFINE(F77_NAME_LOWER_2USCORE,,[Define if Fortran names are lower case with two trailing underscore2])
;;
sub_a_)
AC_DEFINE(F77_NAME_LOWER_USCORE,,[Define if Fortran names are lower case with one trailing underscore])
;;
*)
AC_MSG_WARN([Unrecognized Fortran name mapping])
;;
esac
;;
sub)
AC_DEFINE(F77_NAME_LOWER,,[Define if Fortran names are lower case])
;;
*)
AC_MSG_WARN([Unrecognized Fortran name mapping])
;;
esac
dnl Some Fortran 77 compilers, such as pgf77, do not allow "_8" modifier,
dnl because _8 modifier is a Fortran 90 feature
dnl UD_CHECK_F77_IS_PGF77
dnl UD_MSG_DEBUG([ac_cv_mpif77_is_PGF77=$ac_cv_mpif77_is_PGF77])
dnl check Fortran parameter modifier for 8-byte integer type
dnl We need this to set the max constants for UINT, INT64, and UINT64
UD_FC_CONSTANT_MODIFIER
UD_MSG_DEBUG([ac_cv_fc_constant_modifier=$ac_cv_fc_constant_modifier])
PNF_INT8_MODIFIER=""
if test "x${ac_cv_fc_constant_modifier}" = xnone ; then
PNF_FILL_UINT=4294967295
PNF_FILL_INT64=-9223372036854775806
PNF_FILL_UINT64=18446744073709551614
PNF_X_UINT_MAX=4294967295
PNF_X_INT8_MIN=-9223372036854775807
PNF_X_INT8_MAX=9223372036854775807
PNF_X_UINT8_MAX=18446744073709551615
else
if test "x${ac_cv_fc_constant_modifier}" = xEightByteInt ; then
PNF_INT8_MODIFIER=" integer, parameter :: EightByteInt = selected_int_kind(18)"
fi
PNF_FILL_UINT=4294967295_${ac_cv_fc_constant_modifier}
PNF_FILL_INT64=-9223372036854775806_${ac_cv_fc_constant_modifier}
PNF_FILL_UINT64=18446744073709551614_${ac_cv_fc_constant_modifier}
PNF_X_UINT_MAX=4294967295_${ac_cv_fc_constant_modifier}
PNF_X_INT8_MIN=-9223372036854775807_${ac_cv_fc_constant_modifier}
PNF_X_INT8_MAX=9223372036854775807_${ac_cv_fc_constant_modifier}
PNF_X_UINT8_MAX=18446744073709551615_${ac_cv_fc_constant_modifier}
fi
AC_SUBST(PNF_INT8_MODIFIER)
AC_SUBST(PNF_FILL_UINT)
AC_SUBST(PNF_FILL_INT64)
AC_SUBST(PNF_FILL_UINT64)
AC_SUBST(PNF_X_UINT_MAX)
AC_SUBST(PNF_X_INT8_MIN)
AC_SUBST(PNF_X_INT8_MAX)