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configure.ac
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# -*- Autoconf -*-
## Process this file with autoconf to produce a configure script.
# This is part of Unidata's netCDF package. Copyright 2005-2018, see
# the COPYRIGHT file for more information.
# Ed Hartnett, Ward Fisher, Dennis Heimbigner
# Running autoconf on this file will trigger a warning if
# autoconf is not at least the specified version.
AC_PREREQ([2.59])
# Initialize with name, version, and support email address.
AC_INIT([netCDF],[4.10.0-development],[support-netcdf@unidata.ucar.edu],[netcdf-c])
##
# Prefer an empty CFLAGS variable instead of the default -g -O2.
# See:
# * http://www.gnu.org/savannah-checkouts/gnu/autoconf/manual/autoconf-2.69/html_node/C-Compiler.html#C-Compiler
##
: ${CFLAGS=""}
AC_SUBST([netCDF_VERSION_MAJOR]) netCDF_VERSION_MAJOR=4
AC_SUBST([netCDF_VERSION_MINOR]) netCDF_VERSION_MINOR=10
AC_SUBST([netCDF_VERSION_PATCH]) netCDF_VERSION_PATCH=0
AC_SUBST([NC_VERSION_NOTE]) NC_VERSION_NOTE="-development"
##
# These linker flags specify libtool version info.
# See http://www.gnu.org/software/libtool/manual/libtool.html#Libtool-versioning
# for information regarding incrementing `-version-info`.
# These values should match those in CMakeLists.txt
AC_SUBST([netCDF_SO_VERSION]) netCDF_SO_VERSION=23:0:1
#####
# Set some variables used to generate a libnetcdf.settings file,
# pattered after the files generated by libhdf4, libhdf5.
#####
# Create the VERSION file, which contains the package version from AC_INIT.
# This file is apparently unused. But see the bottom of Makefile.am
# echo AC_PACKAGE_VERSION>VERSION
AC_SUBST(PACKAGE_VERSION)
AC_MSG_NOTICE([netCDF AC_PACKAGE_VERSION])
# Keep libtool macros in an m4 directory.
AC_CONFIG_MACRO_DIR([m4])
# Configuration Date
if test "x$SOURCE_DATE_EPOCH" != "x" ; then
AC_SUBST([CONFIG_DATE]) CONFIG_DATE="`date -u -d "${SOURCE_DATE_EPOCH}"`"
else
AC_SUBST([CONFIG_DATE]) CONFIG_DATE="`date`"
fi
# Find out about the host we're building on.
AC_CANONICAL_HOST
# Find out about the target we're building for.
AC_CANONICAL_TARGET
AC_CONFIG_HEADERS([config.h])
##
# Check to see if the compiler supports -fno-strict-aliasing and, if so,
# add that to the C compiler flags. This is in support of https://github.com/Unidata/netcdf-c/issues/1983.
##
SAVE_CFLAGS="${CFLAGS}"
AC_LANG_PUSH([C])
AC_LANG_COMPILER_REQUIRE
CFLAGS="${CFLAGS} -fno-strict-aliasing"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
[int i = 0;]])],
[have_no_strict_aliasing=yes],
[have_no_strict_aliasing=no])
AC_MSG_CHECKING([whether compiler supports -fno-strict-aliasing])
AC_MSG_RESULT([$have_no_strict_aliasing])
AC_LANG_POP([C])
if test $have_no_strict_aliasing = no; then
CFLAGS=$SAVE_CFLAGS
fi
##
# Check to see if we have getfattr
##
AC_CHECK_PROGS([HAVE_GETFATTR], [getfattr])
if test -n "$HAVE_GETFATTR"; then
AC_DEFINE_UNQUOTED([HAVE_GETFATTR],[1],[getfattr is available])
fi
##
# Some files need to exist in build directories
# that do not correspond to their source directory, or
# the test program makes an assumption about where files
# live. AC_CONFIG_LINKS provides a mechanism to link/copy files
# if an out-of-source build is happening.
##
AC_CONFIG_LINKS([nc_test4/ref_hdf5_compat1.nc:nc_test4/ref_hdf5_compat1.nc])
AC_CONFIG_LINKS([nc_test4/ref_hdf5_compat2.nc:nc_test4/ref_hdf5_compat2.nc])
AC_CONFIG_LINKS([nc_test4/ref_hdf5_compat3.nc:nc_test4/ref_hdf5_compat3.nc])
AC_CONFIG_LINKS([hdf4_test/ref_chunked.hdf4:hdf4_test/ref_chunked.hdf4])
AC_CONFIG_LINKS([hdf4_test/ref_contiguous.hdf4:hdf4_test/ref_contiguous.hdf4])
AM_INIT_AUTOMAKE([foreign dist-zip subdir-objects])
#AM_MAINTAINER_MODE()
# Check for the existence of this file before proceeding.
AC_CONFIG_SRCDIR([include/netcdf.h])
# Figure out platforms of special interest
AC_CANONICAL_HOST
AS_CASE([$host],
[*-*-cygwin], [ISCYGWIN=yes],
[*-*-darwin*], [ISOSX=yes],
[*-*-mingw*], [ISMINGW=yes],
[*-*-msys], [ISMINGW=yes],
[*-*-win*], [ISMSVC=yes],
[]
)
if test "x$MSYSTEM" != x ; then
ISMINGW=yes
ISMSYS=yes
fi
# Get windows version info
if test "x$ISMSVC" = xyes ; then
WINVER=`systeminfo | sed -e '/^OS Version:/p' -ed | sed -e 's|[^0-9]*\([0-9.]*\).*|\1|'`
else
WINVER="0.0.0"
fi
WINVERMAJOR=`echo $WVER | sed -e 's|\([^.]*\)[.]\([^.]*\)[.]\(.*\)|\1|'`
WINVERBUILD=`echo $WVER | sed -e 's|\([^.]*\)[.]\([^.]*\)[.]\(.*\)|\3|'`
if test "x$WINVERMAJOR" = x ; then WINVERMAJOR=0; fi
if test "x$WINVERBUILD" = x ; then WINVERBUILD=0; fi
AC_DEFINE_UNQUOTED([WINVERMAJOR], [$WINVERMAJOR], [windows version major])
AC_DEFINE_UNQUOTED([WINVERBUILD], [$WINVERBUILD], [windows version build])
AC_MSG_NOTICE([checking supported formats])
# As a long term goal, and because it is now the case that --enable-nczarr
# => USE_NETCDF4, make the external options --enable-netcdf-4 and
# --enable-netcdf4 obsolete in favor of --enable-hdf5
# We will do the following for one more release cycle.
# 1. Make --enable-netcdf-4 be an alias for --enable-netcdf4.
# 2. Make --enable-netcdf4 an alias for --enable-hdf5.
# 3. Internally, convert most uses of USE_NETCDF_4 ad USE_NETCDF4 to USE_HDF5
# Collect the values of --enable-netcdf-4, --enable-netcdf4, and --enable-hdf5.
# Also determine which have been explicitly set on the command line.
AC_ARG_ENABLE([netcdf-4], [AS_HELP_STRING([--enable-netcdf-4],
[(Deprecated) Synonym for --enable-hdf5; default yes])])
AC_ARG_ENABLE([netcdf4], [AS_HELP_STRING([--enable-netcdf4],
[(Deprecated) Synonym for --enable-hdf5; default yes])])
AC_ARG_ENABLE([hdf5], [AS_HELP_STRING([--enable-hdf5],[default yes])])
# Complain about the use of --enable-netcdf-4/--enable-netcdf4
if test "x$enable_netcdf_4" != x ; then
AC_MSG_WARN([--enable-netcdf-4 is deprecated; please use --enable-hdf5])
fi
if test "x$enable_netcdf4" != x ; then
AC_MSG_WARN([--enable-netcdf4 is deprecated; please use --enable-hdf5])
fi
# --enable-netcdf-4 overrides --enable-netcdf4 if latter not defined
if test "x$enable_netcdf_4" != x && test "x$enable_netcdf4" == x ; then
enable_netcdf4="$enable_netcdf_4"
fi
# --enable-netcdf4 overrides --enable-hdf5 if latter not defined
if test "x$enable_netcdf4" != x && test "x$enable_hdf5" == x ; then
enable_hdf5="$enable_netcdf4"
fi
# Otherwise, use --enable-hdf5
AC_MSG_CHECKING([whether we should build with HDF5])
test "x$enable_hdf5" = xno || enable_hdf5=yes
AC_MSG_RESULT([$enable_hdf5])
# Turn off enable_netcdf4 because it will be used
# as a shorthand for enable_hdf5|enable_hdf4|enable_nczarr
enable_netcdf4=no
# Check whether we want to enable CDF5 support.
AC_MSG_CHECKING([whether CDF5 support should be disabled])
AC_ARG_ENABLE([cdf5],
[AS_HELP_STRING([--disable-cdf5],
[build without CDF5 support. @<:@default: auto@:>@])],
[enable_cdf5=${enableval}], [enable_cdf5=auto]
)
AC_MSG_RESULT($enable_cdf5)
# Does the user want to turn on HDF4 read ability?
AC_MSG_CHECKING([whether reading of HDF4 SD files is to be enabled])
AC_ARG_ENABLE([hdf4], [AS_HELP_STRING([--enable-hdf4],
[build netcdf with HDF4 read capability (HDF4, HDF5 and zlib required)])])
test "x$enable_hdf4" = xyes || enable_hdf4=no
AC_MSG_RESULT($enable_hdf4)
AC_MSG_CHECKING([whether parallel I/O for classic files is to be enabled])
AC_ARG_ENABLE([pnetcdf], [AS_HELP_STRING([--enable-pnetcdf],
[build with parallel I/O for classic files. @<:@default: disabled@:>@])])
test "x$enable_pnetcdf" = xyes || enable_pnetcdf=no
AC_MSG_RESULT($enable_pnetcdf)
AC_MSG_CHECKING([whether any network access should be allowed])
AC_ARG_ENABLE([remote-functionality], [AS_HELP_STRING([--enable-remote-functionality],
[enable|disable all forms of network access (default enabled)])])
test "x$enable_remote_functionality" = xno || enable_remote_functionality=yes
AC_MSG_RESULT($enable_remote_functionality)
# We need curl for remote operations
AC_MSG_CHECKING([whether we need to look for libcurl])
AC_ARG_ENABLE([curl],
[AS_HELP_STRING([--enable-curl],
[look for and link against libcurl])])
## Capture the state of the --enable-dap flag => enable dap2+dap4
AC_MSG_CHECKING([whether DAP client(s) are to be built])
AC_ARG_ENABLE([dap],
[AS_HELP_STRING([--disable-dap],
[build without DAP client support.])])
test "x$enable_dap" = xno || enable_dap=yes
AC_MSG_RESULT($enable_dap)
if test "x$enable_remote_functionality" = xno ; then
AC_MSG_WARN([All network access is disabled => DAP support disabled.])
enable_dap=no
AC_MSG_WARN([All network access is disabled => NCZARR support disabled.])
enable_nczarr=no
fi
AC_MSG_CHECKING([whether netcdf zarr storage format should be disabled])
AC_ARG_ENABLE([nczarr],
[AS_HELP_STRING([--disable-nczarr],
[disable netcdf zarr storage support])])
test "x$enable_nczarr" = xno || enable_nczarr=yes
AC_MSG_RESULT($enable_nczarr)
# HDF5 | HDF4 | NCZarr => netcdf-4
if test "x$enable_hdf5" = xyes || test "x$enable_hdf4" = xyes || test "x$enable_nczarr" = xyes ; then
enable_netcdf4=yes
fi
AC_MSG_NOTICE([checking user options])
# Did the user specify a default minimum blocksize (NCIO_MINBLOCKSIZE) for posixio?
AC_MSG_CHECKING([whether a NCIO_MINBLOCKSIZE was specified])
AC_ARG_WITH([minblocksize],
[AS_HELP_STRING([--with-minblocksize=<integer>],
[Specify minimum I/O blocksize for netCDF classic and 64-bit offset format files.])],
[NCIO_MINBLOCKSIZE=$with_minblocksize], [NCIO_MINBLOCKSIZE=256])
AC_MSG_RESULT([$NCIO_MINBLOCKSIZE])
AC_DEFINE_UNQUOTED([NCIO_MINBLOCKSIZE], [$NCIO_MINBLOCKSIZE], [min blocksize for posixio.])
# Find valgrind, if available, and add targets for it.
AX_VALGRIND_DFLT([sgcheck], [off])
AX_VALGRIND_CHECK
AM_CONDITIONAL(ENABLE_VALGRIND, [test "x$VALGRIND_ENABLED" = xyes])
###
# Doxygen and doxygen-related options.
###
AC_ARG_ENABLE([doxygen],
[AS_HELP_STRING([--enable-doxygen],
[Enable generation of documentation.])])
test "x$enable_doxygen" = xyes || enable_doxygen=no
AM_CONDITIONAL([BUILD_DOCS], [test "x$enable_doxygen" = xyes])
AC_ARG_ENABLE([doxygen-tasks],
[AS_HELP_STRING([--enable-doxygen-tasks],
[Enable Doxygen-generated test, todo and bug list documentation. Developers only.])])
test "x$enable_doxygen_tasks" = xyes || enable_doxygen_tasks=no
AM_CONDITIONAL([SHOW_DOXYGEN_TAG_LIST], [test "x$enable_doxygen_tasks" = xyes])
AC_SUBST([SHOW_DOXYGEN_TAG_LIST], [$enable_doxygen_tasks])
###
# Determine if we should build documentation
# configured for releases on the Unidata web server.
###
AC_ARG_ENABLE([doxygen-build-release-docs],
[AS_HELP_STRING([--enable-doxygen-build-release-docs],
[Build release documentation. This is of interest only to developers.])])
test "x$enable_doxygen_build_release_docs" = xyes || enable_doxygen_build_release_docs=no
AM_CONDITIONAL([DOXYGEN_BUILD_RELEASE_DOCS], [test "x$enable_doxygen_build_release_docs" = xyes])
if test $enable_doxygen_build_release_docs = yes; then
AC_SUBST([DOXYGEN_CSS_FILE], ["release.css"])
AC_SUBST([DOXYGEN_HEADER_FILE], ["release_header.html"])
AC_SUBST([DOXYGEN_SEARCHENGINE], ["NO"])
else
AC_SUBST([DOXYGEN_CSS_FILE], [])
AC_SUBST([DOXYGEN_HEADER_FILE], [])
AC_SUBST([DOXYGEN_SEARCHENGINE], ["YES"])
fi
AC_SUBST([DOXYGEN_SERVER_BASED_SEARCH], ["NO"])
AC_ARG_ENABLE([doxygen-pdf-output],
[AS_HELP_STRING([--enable-doxygen-pdf-output],
[Build netCDF library documentation in PDF format. Experimental.])])
AC_SUBST([NC_NETCDF_ENABLE_DOXYGEN_PDF_OUTPUT], [$enable_doxygen_pdf_output])
AM_CONDITIONAL([NC_NETCDF_ENABLE_DOXYGEN_PDF_OUTPUT], [test "x$enable_doxygen_pdf_output" = xyes])
AC_ARG_ENABLE([dot],
[AS_HELP_STRING([--enable-dot],
[Use dot (provided by graphviz) to generate charts and graphs in the doxygen-based documentation.])])
test "x$enable_dot" = xyes || enable_dot=no
AC_ARG_ENABLE([internal-docs],
[AS_HELP_STRING([--enable-internal-docs],
[Include documentation of library internals. This is of interest only to those developing the netCDF library.])])
test "x$enable_internal_docs" = xyes || enable_internal_docs=no
AC_SUBST([BUILD_INTERNAL_DOCS], [$enable_internal_docs])
# Doxygen is apparently buggy when trying to combine a markdown
# file with @internal. The equivalent can be faked using
# the Doxygen ENABLED_SECTIONS mechanism. See docs/testserver.dox
# to see how this is done.
sections=
if test "x$enable_internal_docs" = xyes ; then
sections="$sections INTERNAL"
fi
AC_SUBST([ENABLED_DOC_SECTIONS], [$sections])
AC_MSG_CHECKING([if fsync support is enabled])
AC_ARG_ENABLE([fsync],
[AS_HELP_STRING([--enable-fsync],
[enable fsync support])],
[],
[enable_fsync=no])
test "x$enable_fsync" = xno || enable_fsync=yes
AC_MSG_RESULT($enable_fsync)
if test "x$enable_fsync" = xyes ; then
AC_DEFINE([USE_FSYNC], [1], [if true, include experimental fsync code])
fi
# Does the user want to turn off unit tests (useful for test coverage
# analysis).
AC_MSG_CHECKING([if unit tests should be enabled])
AC_ARG_ENABLE([unit-tests],
[AS_HELP_STRING([--enable-unit-tests],
[Disable tests in unit_test directory. Other tests still run.])])
test "x$enable_unit_tests" = xno || enable_unit_tests=yes
AC_MSG_RESULT($enable_unit_tests)
AM_CONDITIONAL(BUILD_UNIT_TESTS, [test "x$enable_unit_tests" = xyes])
# Does the user require dynamic loading?
# This is only for those hdf5 installs that support it.
AC_MSG_CHECKING([do we require hdf5 dynamic-loading support])
AC_ARG_ENABLE([dynamic-loading], [AS_HELP_STRING([--enable-dynamic-loading],
[enable dynamic loading for use with supported hdf5 installs (libdl, HDF5 required)])])
test "x$enable_dynamic_loading" = xno || enable_dynamic_loading=yes
AC_MSG_RESULT([$enable_dynamic_loading])
# Does the user want to turn on extra HDF4 file tests?
AC_MSG_CHECKING([whether to fetch some sample HDF4 files from Unidata resources site to test HDF4 reading (requires wget)])
AC_ARG_ENABLE([hdf4-file-tests], [AS_HELP_STRING([--enable-hdf4-file-tests],
[get some HDF4 files from Unidata resources site and test that they can be read])])
test "x$enable_hdf4" = xyes -a "x$enable_hdf4_file_tests" = xyes || enable_hdf4_file_tests=no
if test "x$enable_hdf4_file_tests" = xyes; then
AC_DEFINE([USE_HDF4_FILE_TESTS], 1, [If true, use use wget to fetch some sample HDF4 data, and then test against it.])
fi
AC_MSG_RESULT($enable_hdf4_file_tests)
# Does the user want to run extra parallel tests when parallel netCDF-4 is built?
AC_MSG_CHECKING([whether parallel IO tests should be run])
AC_ARG_ENABLE([parallel-tests],
[AS_HELP_STRING([--enable-parallel-tests],
[Run extra parallel IO tests. Requires netCDF-4
with parallel I/O support.])])
test "x$enable_parallel_tests" = xyes || enable_parallel_tests=no
AC_MSG_RESULT($enable_parallel_tests)
# Did the user specify an MPI launcher other than mpiexec?
AC_MSG_CHECKING([whether a user specified program to run mpi programs])
AC_ARG_WITH([mpiexec],
[AS_HELP_STRING([--with-mpiexec=<command>],
[Specify command to launch MPI parallel tests.])],
[MPIEXEC=$with_mpiexec], [MPIEXEC=mpiexec])
AC_MSG_RESULT([$MPIEXEC])
AC_SUBST([MPIEXEC], [$MPIEXEC])
# Did the user specify a default chunk size?
AC_MSG_CHECKING([whether a default chunk size in bytes was specified])
AC_ARG_WITH([default-chunk-size],
[AS_HELP_STRING([--with-default-chunk-size=<integer>],
[Specify default size of chunks in bytes.])],
[DEFAULT_CHUNK_SIZE=$with_default_chunk_size], [DEFAULT_CHUNK_SIZE=4194304])
AC_MSG_RESULT([$DEFAULT_CHUNK_SIZE])
AC_DEFINE_UNQUOTED([DEFAULT_CHUNK_SIZE], [$DEFAULT_CHUNK_SIZE], [default chunk size in bytes])
# Did the user specify a default cache size?
AC_MSG_CHECKING([whether a default cache size was specified])
AC_ARG_WITH([default-chunk-cache-size],
[AS_HELP_STRING([--with-default-chunk-cache-size=<integer>],
[Specify default size (in bytes) for chunk cache.])],
[DEFAULT_CHUNK_CACHE_SIZE=$with_default_chunk_cache_size], [DEFAULT_CHUNK_CACHE_SIZE=67108864U])
AC_MSG_RESULT([$DEFAULT_CHUNK_CACHE_SIZE])
AC_DEFINE_UNQUOTED([DEFAULT_CHUNK_CACHE_SIZE], [$DEFAULT_CHUNK_CACHE_SIZE], [default size of the chunk cache.])
# Did the user specify a max number of chunks in default per-var cache size?
AC_MSG_CHECKING([whether a default number of entries for the chunk cache was specified])
AC_ARG_WITH([default-chunks-in-cache],
[AS_HELP_STRING([--with-default-chunks-in-cache=<integer>],
[Specify the max number of chunks to store in cache.])],
[DEFAULT_CHUNKS_IN_CACHE=$with_default_chunks_in_cache], [DEFAULT_CHUNKS_IN_CACHE=1000])
AC_MSG_RESULT([$DEFAULT_CHUNKS_IN_CACHE])
AC_DEFINE_UNQUOTED([DEFAULT_CHUNKS_IN_CACHE], [$DEFAULT_CHUNKS_IN_CACHE], [default max num chunks in chunk cache.])
# Did the user specify a default cache preemption
AC_MSG_CHECKING([whether a default cache preemption was specified])
AC_ARG_WITH([default-chunk-cache-preemption],
[AS_HELP_STRING([--with-chunk-cache-preemption=<float between 0 and 1 inclusive>],
[Specify default file chunk cache preemption policy (a number between 0 and 1, inclusive).])],
[DEFAULT_CHUNK_CACHE_PREEMPTION=$with_chunk_cache_preemption], [DEFAULT_CHUNK_CACHE_PREEMPTION=0.75])
AC_MSG_RESULT([$DEFAULT_CHUNK_CACHE_PREEMPTION])
AC_DEFINE_UNQUOTED([DEFAULT_CHUNK_CACHE_PREEMPTION], [$DEFAULT_CHUNK_CACHE_PREEMPTION], [default file chunk cache preemption policy.])
# These three options are redundant over the --with-default... options above.
# Did the user specify a default cache size for HDF5?
AC_MSG_CHECKING([whether a default file cache size for HDF5 was specified])
AC_ARG_WITH([chunk-cache-size],
[AS_HELP_STRING([--with-chunk-cache-size=<integer>],
[Specify default file cache chunk size for HDF5 files in bytes.])],
[CHUNK_CACHE_SIZE=$with_chunk_cache_size], [CHUNK_CACHE_SIZE=DEFAULT_CHUNK_CACHE_SIZE])
AC_MSG_RESULT([$CHUNK_CACHE_SIZE])
AC_DEFINE_UNQUOTED([CHUNK_CACHE_SIZE], [$CHUNK_CACHE_SIZE], [default file chunk cache size in bytes.])
# Did the user specify a default max cache entries for HDF5
AC_MSG_CHECKING([whether a default file cache maximum number of elements for HDF5 was specified])
AC_ARG_WITH([chunk-cache-nelems],
[AS_HELP_STRING([--with-chunk-cache-nelems=<integer>],
[Specify default maximum number of elements in the file chunk cache chunk for HDF5 files (should be prime number).])],
[CHUNK_CACHE_NELEMS=$with_chunk_cache_nelems], [CHUNK_CACHE_NELEMS=DEFAULT_CHUNKS_IN_CACHE])
AC_MSG_RESULT([$CHUNK_CACHE_NELEMS])
AC_DEFINE_UNQUOTED([CHUNK_CACHE_NELEMS], [$CHUNK_CACHE_NELEMS], [default file chunk cache nelems.])
# Did the user specify a default cache preemption for HDF5?
AC_MSG_CHECKING([whether a default cache preemption for HDF5 was specified])
AC_ARG_WITH([chunk-cache-preemption],
[AS_HELP_STRING([--with-chunk-cache-preemption=<float between 0 and 1 inclusive>],
[Specify default file chunk cache preemption policy for HDF5 files (a number between 0 and 1, inclusive).])],
[CHUNK_CACHE_PREEMPTION=$with_chunk_cache_preemption], [CHUNK_CACHE_PREEMPTION=DEFAULT_CHUNK_CACHE_PREEMPTION])
AC_MSG_RESULT([$CHUNK_CACHE_PREEMPTION])
AC_DEFINE_UNQUOTED([CHUNK_CACHE_PREEMPTION], [$CHUNK_CACHE_PREEMPTION], [default file chunk cache preemption policy.])
# Does the user want to enable netcdf-4 logging?
AC_MSG_CHECKING([whether netCDF-4 logging is enabled])
AC_ARG_ENABLE([logging],
[AS_HELP_STRING([--enable-logging],
[enable logging capability (only applies when netCDF-4 is built). \
This debugging features is only of interest to netCDF developers. \
Ignored if netCDF-4 is not enabled.])])
test "x$enable_logging" = xyes || enable_logging=no
AC_MSG_RESULT([$enable_logging])
if test "x$enable_logging" = xyes; then
enable_set_log_level_func=yes
enable_set_log_level=yes
AC_DEFINE([NETCDF_ENABLE_SET_LOG_LEVEL], 1, [If true, enable nc_set_log_level function.])
else
enable_set_log_level_func=no
enable_set_log_level=no
fi
# Do we want to enable unsafe macros, e.g. _FillValue in addition to NC_FillValue.
# See https://github.com/Unidata/netcdf-c/issues/3029
AC_MSG_CHECKING([whether to allow legacy macros])
AC_ARG_ENABLE([legacy-macros],
[AS_HELP_STRING([--disable-legacy-macros],
[enable legacy macros for backwards compatibility purposes. Use with caution.\
This can lead to unexpected consequences/behavior.])])
test "x$enable_legacy_macros" = xno || enable_legacy_macros=yes
AC_MSG_RESULT($enable_legacy_macros)
if test "x$enable_legacy_macros" = xyes; then
AC_DEFINE([NETCDF_ENABLE_LEGACY_MACROS], 1, [If true, enable legacy macros in netcdf.h])
fi
# Does the user want to allow reading of remote data via range headers?
AC_MSG_CHECKING([whether byte range support is enabled])
AC_ARG_ENABLE([byterange],
[AS_HELP_STRING([--disable-byterange],
[allow byte-range I/O])])
test "x$enable_byterange" = xno || enable_byterange=yes
AC_MSG_RESULT($enable_byterange)
if test "x$enable_dap" = xno && test "x$enable_byterange" = xyes; then
AC_MSG_WARN([DAP required for byterange. Byterange support disabled.])
enable_byterange=no
fi
###
# Stanza to check for functionality which requires linking against
# libcurl.
###
if test "x$enable_dap" = xyes || test "x$enable_nczarr" = xyes; then
enable_curl=yes
fi
if test "x$enable_curl" = xyes; then
if test "x$enable_dap" = xyes && test "x$found_curl" = xno ; then
AC_MSG_WARN([curl required for dap access. DAP support disabled.])
enable_dap=no
fi
# Need curl for byte ranges
if test "x$found_curl" = xno && test "x$enable_byterange" = xyes ; then
AC_MSG_WARN([curl required for byte range support. Install curl or build without --enable-byterange.])
enable_byterange=no
fi
if test "x$enable_byterange" = xyes; then
AC_DEFINE([NETCDF_ENABLE_BYTERANGE], [1], [if true, support byte-range read of remote datasets.])
fi
AC_CHECK_LIB([curl],[curl_easy_setopt],[found_curl=yes],[found_curl=no])
if test "x$found_curl" = "xyes" ; then
AC_SEARCH_LIBS([curl_easy_setopt],[curl curl.dll cygcurl.dll], [],[])
fi
if test "x$enable_dap" = xyes & test "x$found_curl" = xno ; then
AC_MSG_WARN([curl required for dap access. DAP support disabled.])
enable_dap=no
fi
# Save/restore CFLAGS
SAVECFLAGS="$CFLAGS"
CFLAGS="${curl_cflags}"
# CURLOPT_USERNAME is not defined until curl version 7.19.1
# CURLOPT_PASSWORD is not defined until curl version 7.19.1
# CURLOPT_KEYPASSWD is not defined until curl version 7.16.4
# CURLINFO_RESPONSE_CODE is not defined until curl version 7.10.7
# CURLOPT_CHUNK_BGN_FUNCTION is not defined until curl version 7.21.0
# CURL_MAX_READ_SIZE is not defined until 7.59
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[#include "curl/curl.h"],
[[int x = CURLOPT_USERNAME;]])],
[haveusername=yes],
[haveusername=no])
AC_MSG_CHECKING([whether CURLOPT_USERNAME is defined])
AC_MSG_RESULT([${haveusername}])
if test $haveusername = yes; then
AC_DEFINE([HAVE_CURLOPT_USERNAME],[1],[Is CURLOPT_USERNAME defined])
fi
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[#include "curl/curl.h"],
[[int x = CURLOPT_PASSWORD;]])],
[havepassword=yes],
[havepassword=no])
AC_MSG_CHECKING([whether CURLOPT_PASSWORD is defined])
AC_MSG_RESULT([${havepassword}])
if test $havepassword = yes; then
AC_DEFINE([HAVE_CURLOPT_PASSWORD],[1],[Is CURLOPT_PASSWORD defined])
fi
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[#include "curl/curl.h"],
[[int x = CURLOPT_KEYPASSWD;]])],
[havekeypassword=yes],
[havekeypassword=no])
AC_MSG_CHECKING([whether CURLOPT_KEYPASSWD is defined])
AC_MSG_RESULT([${havekeypassword}])
if test $havekeypassword = yes; then
AC_DEFINE([HAVE_CURLOPT_KEYPASSWD],[1],[Is CURLOPT_KEYPASSWD defined])
fi
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[#include "curl/curl.h"],
[[int x = CURLINFO_RESPONSE_CODE;]])],
[haveresponsecode=yes],
[haveresponsecode=no])
AC_MSG_CHECKING([whether CURLINFO_RESPONSE_CODE is defined])
AC_MSG_RESULT([${haveresponsecode}])
if test $haveresponsecode = yes; then
AC_DEFINE([HAVE_CURLINFO_RESPONSE_CODE],[1],[Is CURLINFO_RESPONSE_CODE defined])
fi
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[#include "curl/curl.h"],
[[int x = CURLOPT_BUFFERSIZE;]])],
[havecurloption=yes],
[havecurloption=no])
AC_MSG_CHECKING([whether CURLOPT_BUFFERSIZE is defined])
AC_MSG_RESULT([${havecurloption}])
if test $havecurloption = yes; then
AC_DEFINE([HAVE_CURLOPT_BUFFERSIZE],[1],[Is CURLOPT_BUFFERSIZE defined])
fi
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[#include "curl/curl.h"],
[[int x = CURLOPT_TCP_KEEPALIVE;]])],
[havecurloption=yes],
[havecurloption=no])
AC_MSG_CHECKING([whether CURLOPT_TCP_KEEPALIVE is defined])
AC_MSG_RESULT([${havecurloption}])
if test $havecurloption = yes; then
AC_DEFINE([HAVE_CURLOPT_KEEPALIVE],[1],[Is CURLOPT_TCP_KEEPALIVE defined])
fi
# CURLOPT_VERIFYHOST semantics differ depending on version
AC_MSG_CHECKING([whether libcurl is version 7.66 or later?])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[#include "curl/curl.h"],
[[
#if !CURL_AT_LEAST_VERSION(7,66,0)
error "<7.66";
#endif
]])], [libcurl766=yes], [libcurl766=no])
AC_MSG_RESULT([$libcurl766])
if test x$libcurl766 = xyes; then
AC_DEFINE([HAVE_LIBCURL_766],[1],[libcurl version is 7.66 or later])
fi
CFLAGS="$SAVECFLAGS"
fi
###
# End libcurl-related stanza
###
###
# Libxml2 control block.
###
AC_MSG_CHECKING([whether to search for and use external libxml2])
AC_ARG_ENABLE([libxml2],
[AS_HELP_STRING([--disable-libxml2],
[disable detection and use of libxml2 in favor of the bundled xml parser])])
test "x$enable_libxml2" = xno || enable_libxml2=yes
AC_MSG_RESULT([$enable_libxml2])
# We can optionally use libxml2 for DAP4 and nch5comms, if enabled
have_libxml2=no
if test "x$enable_libxml2" = xyes; then
AC_CHECK_PROGS([NC_XML2_CONFIG], [xml2-config])
if test -z "$NC_XML2_CONFIG"; then
AC_MSG_ERROR([Cannot find xml2-config utility. Either install the libxml2 development package, or re-run configure with --disable-libxml2 to use the bundled xml2 parser])
fi
AC_CHECK_LIB([xml2],[xmlReadMemory],[have_libxml2=yes],[have_libxml2=no])
if test "x$have_libxml2" = "xyes" ; then
AC_SEARCH_LIBS([xmlReadMemory],[xml2 xml2.dll cygxml2.dll], [],[])
fi
if test "x$have_libxml2" = xyes; then
XML2FLAGS=`xml2-config --cflags`
AC_SUBST([XML2FLAGS],${XML2FLAGS})
AC_DEFINE([HAVE_LIBXML2], [1], [if true, use libxml2])
fi
fi
if test "x$enable_libxml2" = xyes; then
XMLPARSER="libxml2"
else
XMLPARSER="tinyxml2 (bundled)"
fi
# Need a condition and subst for this
AM_CONDITIONAL(NETCDF_ENABLE_LIBXML2, [test "x$enable_libxml2" = xyes])
AC_SUBST([XMLPARSER],[${XMLPARSER}])
###
# End Libxml2 block
###
##
# Should quantize be enabled?
# On by default, but for testing purposes we may want to
# disable it.
##
AC_MSG_CHECKING([whether to enable quantize functionality])
AC_ARG_ENABLE([quantize],
[AS_HELP_STRING([--disable-quantize],
[disable quantize support. It is safe to leave this on unless you specifically need to disable it.])])
test "x$enable_quantize" = xno || enable_quantize=yes
# If HDF5 and nczarr are disabled, there is no quantize.
if test "x${enable_hdf5}" = xno; then
if test "x${enable_nczarr}" = xno; then
enable_quantize=no
fi
fi
AC_MSG_RESULT($enable_quantize)
if test "x${enable_quantize}" = xyes; then
AC_DEFINE([NETCDF_ENABLE_QUANTIZE], [1], [if true, enable quantize support])
fi
AM_CONDITIONAL(NETCDF_ENABLE_QUANTIZE, [test x$enable_quantize = xyes])
# --enable-dap => enable-dap4
enable_dap4=$enable_dap
AC_MSG_CHECKING([whether dap use of remotetest server should be enabled])
AC_ARG_ENABLE([dap-remote-tests],
[AS_HELP_STRING([--disable-dap-remote-tests],
[disable dap remote tests])])
# Default on
test "x$enable_dap_remote_tests" = xno || enable_dap_remote_tests=yes
if test "x$enable_dap" = "xno" ; then
enable_dap_remote_tests=no
fi
AC_MSG_RESULT($enable_dap_remote_tests)
# Provide a global control for remotetest.
if test "xREMOTETESTDOWN" = xyes ; then
AC_MSG_WARN("ENV(REMOTETESTDOWN) => netcdf_enable_dap_remote_tests == no")
enable_dap_remote_tests=no
fi
AC_MSG_CHECKING([whether use of external (non-unidata) servers should be enabled])
AC_ARG_ENABLE([external-server-tests],
[AS_HELP_STRING([--enable-external-server-tests (default off)],
[enable external server tests])])
test "x$enable_external_server_tests" = xyes || enable_external_server_tests=no
AC_MSG_RESULT($enable_external_server_tests)
if test "x$enable_dap_remote_tests" = "xno" ; then
AC_MSG_NOTICE([--disable-dap_remote_tests => --disable-external-server-tests])
enable_external_server_tests=no
fi
# Default is not to do the remote authorization tests.
AC_MSG_CHECKING([whether dap authorization testing should be enabled (default off)])
AC_ARG_ENABLE([dap-auth-tests],
[AS_HELP_STRING([--enable-dap-auth-tests],
[enable dap remote authorization tests])])
test "x$enable_dap_auth_tests" = xyes || enable_dap_auth_tests=no
AC_MSG_RESULT($enable_dap_auth_tests)
# dap must be enabled in order to use various other flags
if test "x$enable_dap" = "xno" ; then
AC_MSG_NOTICE([--disable-dap => --disable-dap-remote-tests --disable-auth-tests --disable-external-server-tests])
enable_dap_remote_tests=no
enable_dap_auth_tests=no
enable_external_server_tests=no
fi
# Did the user specify a list of test servers to try for remote tests?
AC_MSG_CHECKING([which remote test server(s) to use])
AC_ARG_WITH([testservers],
[AS_HELP_STRING([--with-testservers=<host:port>,<host:port>...],
[Specify the testserver(s) to try for remote tests.])],
[REMOTETESTSERVERS=$with_testservers], [REMOTETESTSERVERS=no])
if test "x$REMOTETESTSERVERS" = xno ; then
dfaltsvc="remotetest.unidata.ucar.edu"
REMOTETESTSERVERS="${dfaltsvc}"
fi
msg="${REMOTETESTSERVERS}"
if test "x$dfaltsvc" != x ; then
msg="${msg} (default)"
fi
AC_MSG_RESULT([${msg}])
AC_DEFINE_UNQUOTED([REMOTETESTSERVERS], ["$REMOTETESTSERVERS"], [the testservers for remote tests.])
# Set the config.h flags
if test "x$enable_dap" = xyes; then
AC_DEFINE([USE_DAP], [1], [if true, build DAP Client])
AC_DEFINE([NETCDF_ENABLE_DAP], [1], [if true, build DAP Client])
fi
if test "x$enable_dap_remote_tests" = xyes; then
AC_DEFINE([NETCDF_ENABLE_DAP_REMOTE_TESTS], [1], [if true, do remote tests])
fi
if test "x$enable_external_server_tests" = xyes; then
AC_DEFINE([NETCDF_ENABLE_EXTERNAL_SERVER_TESTS], [1], [if true, do remote external tests])
fi
AC_MSG_CHECKING([whether the time-consuming dap tests should be enabled (default off)])
AC_ARG_ENABLE([dap-long-tests],
[AS_HELP_STRING([--enable-dap-long-tests],
[enable dap long tests])])
test "x$enable_dap_long_tests" = xyes || enable_dap_long_tests=no
AC_MSG_RESULT([$enable_dap_long_tests])
if test "x$enable_dap_remote_tests" = "xno" || test "x$enable_external_server_tests" = "xno" ; then
AC_MSG_NOTICE([--disable-dap-remote|external-server-tests => --disable_dap_long_tests])
enable_dap_long_tests=no
fi
if test "x$enable_nczarr" = xyes; then
AC_DEFINE([NETCDF_ENABLE_NCZARR], [1], [if true, build NCZarr Client])
AC_SUBST(NETCDF_ENABLE_NCZARR)
fi
AM_CONDITIONAL(NETCDF_ENABLE_NCZARR, [test x$enable_nczarr = xyes])
##########
# Look for Standardized libraries
##########
##
# blosc checks
##
# See if we want to enable blosc, and if so, search for the library.
AC_MSG_CHECKING([whether to search for and enable blosc filter support])
AC_ARG_ENABLE([filter-blosc],
[AS_HELP_STRING([--disable-filter-blosc],
[disable blosc filter support.])])
test "x$enable_filter_blosc" = xno || enable_filter_blosc=yes
AC_MSG_RESULT($enable_filter_blosc)
if test "x$enable_filter_blosc" = "xyes" ; then
# See if we have libblosc
AC_CHECK_LIB([blosc],[blosc_init],[have_blosc=yes],[have_blosc=no])
if test "x$have_blosc" = "xyes" ; then
AC_SEARCH_LIBS([blosc_init],[blosc blosc.dll cygblosc.dll], [], [])
AC_DEFINE([HAVE_BLOSC], [1], [if true, blosc library is available])
fi
else
have_blosc=no
fi
##
# End blosc checks
##
##
# libzstd checks
##
# See if we want to enable libzstd, and if so, search for the library.
AC_MSG_CHECKING([whether to search for and enable libzstd filter support])
AC_ARG_ENABLE([filter-zstd],
[AS_HELP_STRING([--disable-filter-zstd],
[disable zstd filter support.])])
test "x$enable_filter_zstd" = xno || enable_filter_zstd=yes
AC_MSG_RESULT($enable_filter_zstd)
if test "x$enable_filter_zstd" = "xyes" ; then
# See if we have libzstd
AC_CHECK_LIB([zstd],[ZSTD_compress],[have_zstd=yes],[have_zstd=no])
if test "x$have_zstd" = "xyes" ; then
AC_SEARCH_LIBS([ZSTD_compress],[zstd zstd.dll cygzstd.dll], [], [])
AC_DEFINE([HAVE_ZSTD], [1], [if true, zstd library is available])
fi
AC_MSG_CHECKING([whether libzstd library is available])
AC_MSG_RESULT([${have_zstd}])
##
# Ensure that the zstd.h dev files are also available.
##
if test "x$have_zstd" = "xyes" ; then
AC_CHECK_HEADERS([zstd.h], [], [nc_zstd_h_missing=yes])
if test "x$nc_zstd_h_missing" = xyes; then
AC_MSG_WARN([zstd library detected, but zstd.h development file not found. Ensure that the zstd development files are installed in order to build zstd support.])
AC_DEFINE([HAVE_ZSTD], [0], [if true, zstd library is available])
have_zstd=no
fi
fi
else
have_zstd=no
fi
AC_MSG_CHECKING([whether we are going to build with zstd])
AC_SUBST([HAS_ZSTD], [$have_zstd])
AC_MSG_RESULT([$have_zstd])
##
# End zstd checks
##
##
# Begin bz2 checks
##
# See if we want to enable BZ2, and if so, search for the library.
AC_MSG_CHECKING([whether to search for and enable external bz2 filter support])
AC_ARG_ENABLE([filter-bz2],
[AS_HELP_STRING([--disable-filter-bz2],
[disable external bz2 filter support. bz2 support defaults to internal implementation if this is disabled or if the external library is not found.])])
test "x$enable_filter_bz2" = xno || enable_filter_bz2=yes
AC_MSG_RESULT([$enable_filter_bz2])
if test "x$enable_filter_bz2" = "xyes" ; then
AC_CHECK_LIB([bz2],[BZ2_bzCompress],[have_bz2=yes],[have_bz2=no])
if test "x$have_bz2" = "xyes" ; then
AC_SEARCH_LIBS([BZ2_bzCompress],[bz2 bz2.dll cygbz2.dll], [], [])
AC_DEFINE([HAVE_BZ2], [1], [if true, bz2 library is installed])
fi
AC_MSG_CHECKING([whether libbz2 library is available])
AC_MSG_RESULT([${have_bz2}])
fi
# How about bzip2
if test "x$have_bz2" = x ; then
AC_CHECK_LIB([bzip2],[BZ2_bzCompress],[have_bz2=yes],[have_bz2=no])
if test "x$have_bz2" = "xyes" ; then
AC_SEARCH_LIBS([BZ2_bzCompress],[bzip2 bzip2.dll cygbzip2.dll], [], [])
AC_DEFINE([HAVE_BZ2], [1], [if true, bzip2 library is installed])
fi
AC_MSG_CHECKING([whether libbzip2 library is available])
AC_MSG_RESULT([${have_bz2}])
fi
if test "x$have_bz2" = "xno" ; then
have_local_bz2=yes
AC_MSG_NOTICE([Defaulting to internal libbz2])
else
have_local_bz2=no
fi
AM_CONDITIONAL(HAVE_LOCAL_BZ2, [test "x$have_local_bz2" = xyes])
##
# End bz2 checks
##
# Note that szip management is tricky.
# This is because we have three things to consider:
# 1. is libsz available?
# 2. is szip enabled in HDF5?
# 3. is nczarr enabled?
# We need separate flags for cases 1 and 2
# See if we have libsz (usually via libaec)
AC_CHECK_LIB([sz],[SZ_BufftoBuffCompress],[have_sz=yes],[have_sz=no])
if test "x$have_sz" = "xyes" ; then
AC_SEARCH_LIBS([SZ_BufftoBuffCompress],[sz sz.dll cygsz.dll], [], [])
AC_DEFINE([HAVE_SZ], [1], [if true, libsz (==szip) is available])
fi
AC_MSG_CHECKING([whether libsz library is available])
AC_MSG_RESULT([${have_sz}])
##########
##
# Check to see if we're using NCZarr. If not, we don't need to check for dependencies and such.
##
if test "x$enable_nczarr" = xno ; then
enable_nczarr_zip=no
else
# See if we have libzip for NCZarr
AC_SEARCH_LIBS([zip_open],[zip zip.dll cygzip.dll],[have_zip=yes],[have_zip=no])
AC_MSG_CHECKING([whether libzip library is available])
AC_MSG_RESULT([${have_zip}])
enable_nczarr_zip=${have_zip} # alias
AC_MSG_CHECKING([whether nczarr zip support is enabled])
AC_MSG_RESULT([${enable_nczarr_zip}])
if test "x$enable_nczarr_zip" = xyes ; then
AC_DEFINE([NETCDF_ENABLE_NCZARR_ZIP], [1], [If true, then libzip found])
fi
# Check for enabling of S3 support
AC_MSG_CHECKING([whether netcdf S3 support should be enabled])
AC_ARG_ENABLE([s3],
[AS_HELP_STRING([--enable-s3],
[enable netcdf S3 support (default off)])])
test "x$enable_s3" = xyes || enable_s3=no
AC_MSG_RESULT($enable_s3)
# --enable-nczarr-s3 is synonym for --enable-s3 (but...)
AC_MSG_CHECKING([whether netcdf NCZarr S3 support should be enabled])
AC_ARG_ENABLE([nczarr-s3],
[AS_HELP_STRING([--enable-nczarr-s3],
[(Deprecated) enable netcdf NCZarr S3 support; Deprecated in favor of --enable-s3])])
AC_MSG_RESULT([$enable_nczarr_s3 (Deprecated) Please use --enable-s3)])
# Set enable_s3 instead of enable_nczarr_s3
if test "x$enable_s3" = xno && test "x$enable_nczarr_s3" = xyes ; then
enable_s3=yes # back compatibility
fi
unset enable_nczarr_s3
if test "x$enable_remote_functionality" = xno ; then
AC_MSG_WARN([--disable-remote-functionality => --disable-s3])
enable_s3=no
fi
# Note we check for the library after checking for enable_s3
# because for some reason this fails if we unconditionally test for sdk
# and it is not available. Fix someday
S3LIBS=""
if test "x$enable_s3" = xyes ; then
# See if we have the s3 aws library
# Check for the AWS S3 SDK library
AC_LANG_PUSH([C++])
AC_CHECK_LIB([aws-c-common], [aws_string_destroy], [enable_s3_aws=yes],[enable_s3_aws=no])
if test "x$enable_s3_aws" = "xyes" ; then
S3LIBS="-laws-cpp-sdk-core -laws-cpp-sdk-s3"
fi
AC_LANG_POP
else
enable_s3_aws=no
fi
AC_MSG_CHECKING([whether AWS S3 SDK library is available])
AC_MSG_RESULT([$enable_s3_aws])