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configure.ac
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# --------------------------------------------------------------
# configure.ac file for libmesh. Used by Automake to generate
# aclocal.m4 and Makefile.in. See also: http://tinyurl.com/hatuyfn
# --------------------------------------------------------------
AC_INIT([libmesh], [1.7.0-pre], [https://github.com/libMesh/libmesh/discussions], [libmesh], [http://libmesh.github.io])
AC_PREREQ([2.69])
# by default CFLAGS and CXXFLAGS are set to '-g -O2' on systems that support them.
# this causes a problem if we then declare a different optimization level. So
# default them to empty, regardless of what the system supports.
: ${CFLAGS=""}
: ${CXXFLAGS=""}
# Infer the source directory as the path to the ./configure script
srcdir=`dirname $0`
top_srcdir=`dirname $0`
AC_MSG_RESULT(---------------------------------------------)
AC_MSG_RESULT(----------- Configuring libMesh -------------)
AC_MSG_RESULT(---------------------------------------------)
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_MACRO_DIR([m4])
# --------------------------------------------------------------
# Compute the canonical target system type variable "target", and its
# three individual parts: "target_cpu", "target_vendor", and "target_os"
# --------------------------------------------------------------
AC_CANONICAL_TARGET
AC_CONFIG_FILES([Makefile
include/Makefile
include/libmesh/Makefile
contrib/Makefile
contrib/utils/Makefile
contrib/utils/Make.common
tests/Makefile
contrib/utils/libmesh-opt.pc
contrib/utils/libmesh-dbg.pc
contrib/utils/libmesh-devel.pc
contrib/utils/libmesh-prof.pc
contrib/utils/libmesh-oprof.pc
doc/Doxyfile
doc/Makefile
doc/html/Makefile
])
AC_CONFIG_FILES(contrib/bin/libmesh-config, [chmod +x contrib/bin/libmesh-config])
#AC_CONFIG_FILES(contrib/bin/strip_dup_libs.pl, [chmod +x contrib/bin/strip_dup_libs.pl])
#AC_CONFIG_FILES(contrib/bin/strip_dup_incl_paths.pl, [chmod +x contrib/bin/strip_dup_incl_paths.pl])
AC_CONFIG_FILES(contrib/bin/create_libmesh_release, [chmod +x contrib/bin/create_libmesh_release])
AC_CONFIG_FILES(doc/dot, [chmod +x doc/dot])
AC_CONFIG_FILES(tests/run_unit_tests.sh, [chmod +x tests/run_unit_tests.sh])
# Create a temporary file with e.g. HAVE_MPI
AC_CONFIG_HEADER(include/libmesh_config.h.tmp:include/libmesh_config.h.in)
# Prefixes everything in the temporary file with LIBMESH_, e.g. LIBMESH_HAVE_MPI
AX_PREFIX_CONFIG_H(include/libmesh_config.h,LIBMESH,include/libmesh_config.h.tmp)
# Print configuration info to the header file
AC_DEFINE_UNQUOTED(CONFIGURE_INFO, ["$0 $ac_configure_args"], [Configuration information.])
# require automake 1.11 - color tests
AM_INIT_AUTOMAKE([dist-xz dist-bzip2 tar-ustar color-tests serial-tests 1.12])
# use silent rules - automake 1.11
AM_SILENT_RULES(yes)
# We originally passed [enable] to AM_MAINTAINER_MODE, but this caused
# ordinary users to have to configure with --disable-maintainer-mode,
# which is easy to forget unless you are closely following the
# instructions, or are aware of the issue and have run the provided
# ./bootstrap script.
#
# We've now switched this to simply AM_MAINTAINER_MODE with no
# arguments, which is equivalent to AM_MAINTAINER_MODE([disable]). In
# this configuration, developers who modify Makefile.am files (or
# other build system files) *must* configure with
# --enable-maintainer-mode in order for dependent files (Makefile.in,
# etc) to be properly rebuilt whenever changes to the build system are
# made.
#
# Note that this approach is not without its drawbacks and detractors:
# https://blogs.gnome.org/desrt/2011/09/08/am_maintainer_mode-is-not-cool
# https://www.gnu.org/software/automake/manual/html_node/maintainer_002dmode.html
# but the benefit is that casual and first-time users are not
# surprised by the default behavior of simply running ./configure.
#
# Note that we also do things a bit differently than most other
# projects regarding the number of auto-generated build files
# (Makefile.in) that are checked in, and it seems like the new
# approach makes more sense for the way our project works --
# rebuilding the build files are not part of a normal build for most
# users.
AM_MAINTAINER_MODE
# --------------------------------------------------------------
# Determine if we are doing a local or VPATH build. In the case
# of the latter we will need to go through some extra effort to
# create links for the example source files.
# --------------------------------------------------------------
AC_CHECK_FILE(src/base/libmesh.C, [libmesh_vpath_build=no], [libmesh_vpath_build=yes])
AS_IF([test $libmesh_vpath_build = yes],
[AC_MSG_RESULT(<<< Configuring build directory for VPATH build >>>)])
AM_CONDITIONAL(LIBMESH_VPATH_BUILD, test x$libmesh_vpath_build = xyes)
# --------------------------------------------------------------
# Do compilation tests using the compiler, preprocessor, and file extensions
# of C++. This uses the .C extension for test programs.
# --------------------------------------------------------------
AC_LANG([C++])
# -------------------------------------------------------------
# Perl - look for perl. Perl is used to generate dependencies. We
# also use it to (optionally) parse compiler version strings, so $PERL
# needs to be set before LIBMESH_SET_COMPILERS is called.
# -------------------------------------------------------------
AC_PATH_PROG(PERL, perl)
AC_SUBST(PERL)
#--------------------------------------------------------------------
# Check for whether to enable MPI and PETSc which will influence our
# choice of compiler
#--------------------------------------------------------------------
ACSM_COMPILER_CONTROL_ARGS
#-----------------------------------------------------------------------
# Scrape PETSc configure information for their CXX, MPI_INCLUDE, MPI_LIB,
# PETSCLINKLIBS, PETSCINCLUDEDIRS, and other variables
#-----------------------------------------------------------------------
ACSM_SCRAPE_PETSC_CONFIGURE
# --------------------------------------------------------------
# Set our preferred compilers
# --------------------------------------------------------------
LIBMESH_SET_COMPILERS
# By default we do not set any -march flag, but this can be turned on
# by configuring with --enable-march
AC_ARG_ENABLE(march,
AC_HELP_STRING([--enable-march],
[Determine the correct -march flag for this system]),
[AS_CASE("${enableval}",
[yes], [enablemarch=yes],
[no], [enablemarch=no],
[AC_MSG_ERROR(bad value ${enableval} for --enable-march)])],
[enablemarch=no])
# Set the value of the cache variable $ax_cv_gcc_archflag based
# on the current architecture. For the first argument:
# [yes] = generate portable code (-mtune)
# [no] = generate architecture-specific code (-march)
# This script is specifc to GCC; the flags it determines might not
# work for other compilers. There is also an optional third
# argument which controls what happens when determining an arch flag
# fails, we don't do anything in that case.
AS_IF([test "x$enablemarch" != "xno"],
[
AX_GCC_ARCHFLAG([no],
[
dnl Action if success - append $ax_cv_gcc_archflag to CXXFLAGS flags for
dnl all but debugging METHODS. I don't think it is needed with -O0 when
dnl debugging.
CXXFLAGS_OPT="$CXXFLAGS_OPT $ax_cv_gcc_archflag"
CXXFLAGS_DEVEL="$CXXFLAGS_DEVEL $ax_cv_gcc_archflag"
CXXFLAGS_PROF="$CXXFLAGS_PROF $ax_cv_gcc_archflag"
CXXFLAGS_OPROF="$CXXFLAGS_OPROF $ax_cv_gcc_archflag"
])
])
# --------------------------------------------------------------
# Autoconf macro for determining the proper -std=c++??
# flag, for the current compiler, for the user's requested C++
# standards level. Adds the required flag to CXXFLAGS if
# one is found. Exits if no acceptable flag is found.
# --------------------------------------------------------------
ACSM_CXX_COMPILER_STANDARD([2011], [2017])
# --------------------------------------------------------------
# See compiler.m4 for the definition of this function. It uses the
# output of DETERMINE_CXX_BRAND to set special flags for idiosyncratic
# compilers. For example, newer versions of GCC have additional C++ debugging
# flags like _GLIBCXX_DEBUG_PEDANTIC which were not present in older versions.
# --------------------------------------------------------------
LIBMESH_SET_CXX_FLAGS
#------------------------------------------------------
# Checks for code coverage
# this must be done after we look for our own compilers
#------------------------------------------------------
ACSM_CODE_COVERAGE
libmesh_CFLAGS="$GCOV_FLAGS $libmesh_CFLAGS"
libmesh_CXXFLAGS="$GCOV_FLAGS $libmesh_CXXFLAGS"
#-----------------------------------------------------
# Set compiler flags for devel, opt, etc. methods
#-----------------------------------------------------
LIBMESH_SET_METHODS
AC_CONFIG_FILES([contrib/utils/libmesh.pc:$LIBMESH_PC_IN])
ACSM_ENABLE_WERROR
ACSM_ENABLE_PARANOID
# --------------------------------------------------------------
# Test for optional modern C++ features, which libMesh offers shims
# for and/or which libMesh applications may want to selectively use.
# --------------------------------------------------------------
LIBMESH_TEST_CXX14_MAKE_UNIQUE
LIBMESH_TEST_CXX11_REGEX
LIBMESH_TEST_CXX11_THREAD
LIBMESH_TEST_CXX11_CONDITION_VARIABLE
LIBMESH_TEST_CXX11_TYPE_TRAITS
LIBMESH_TEST_CXX11_MATH_FUNCS
LIBMESH_TEST_CXX17_FALLTHROUGH_ATTRIBUTE
#-----------------------------------------------------
# Initialize libtool. By default, we will build
# only shared libraries on platforms that support them
#-----------------------------------------------------
LT_INIT([disable-static])
#-----------------------------------------------------
# See if the user requested --enable-all-static
#-----------------------------------------------------
AX_ALL_STATIC
# --------------------------------------------------------------
# Release versioning - after we find the C++ compiler
# --------------------------------------------------------------
AX_SPLIT_VERSION
# Strip any '-pre' suffix from version; our code expects a number
LIBMESH_NUMERIC_POINT_VERSION=`echo "$AX_POINT_VERSION" | $SED 's/-.*//'`
AC_DEFINE_UNQUOTED(MAJOR_VERSION, [$AX_MAJOR_VERSION], [libMesh major version number])
AC_DEFINE_UNQUOTED(MINOR_VERSION, [$AX_MINOR_VERSION], [libMesh minor version number])
AC_DEFINE_UNQUOTED(MICRO_VERSION, [$LIBMESH_NUMERIC_POINT_VERSION], [libMesh micro version number])
AC_DEFINE_UNQUOTED(LIB_VERSION, ["$VERSION"], [libMesh version number])
AC_DEFINE_UNQUOTED(LIB_RELEASE, ["$BUILD_DEVSTATUS"], [libMesh source code version])
AC_DEFINE_UNQUOTED(CXX, ["$CXX"], [C++ compiler])
AC_DEFINE_UNQUOTED(IO_COMPATIBILITY_VERSION, ["1.7.0"], [libMesh I/O file format compatibility string])
# --------------------------------------------------------------
# Portable symbolic links
# --------------------------------------------------------------
AC_PROG_LN_S
# -------------------------------------------------------------
# ---------------------------------------------------------------
# this seems to get done automatically for C++, but not C?
# Required for QHull rules as implemented
# --------------------------------------------------------------
AM_PROG_CC_C_O
# --------------------------------------------------------------
# --------------------------------------------------------------
# parent directories -- portably and without race conditions
# --------------------------------------------------------------
AC_PROG_MKDIR_P
# -------------------------------------------------------------
# --------------------------------------------------------------
# nice sed that doesn't truncate output
# --------------------------------------------------------------
AC_PROG_SED
AC_SUBST(SED)
# --------------------------------------------------------------
# -------------------------------------------------------------
# pkg-config - used to configure installed packages. We can
# use it to query our installed targets, if it exists.
# Otherwise we can fall back to libmesh-config.
#
# Not required to build libmesh, but we can install a config
# file so that users can use 'pkg-config libmesh ...'
# -------------------------------------------------------------
AS_IF([test -z "$PKG_CONFIG"],
[AC_PATH_PROG(PKG_CONFIG, pkg-config, no)])
# -------------------------------------------------------------
LIBMESH_COMPILER_FEATURES
# --------------------------------------------------------------
# The AC_SUBST(foo) command creates an output variable from a shell
# variable. This command also causes AC_OUTPUT to replace all
# instances of @VAR@ with the value of the shell variable VAR in the
# output files (e.g. one or more Makefiles).
# --------------------------------------------------------------
AC_SUBST(host)
AC_SUBST(GXX_VERSION)
AC_SUBST(CXXFLAGS_OPT)
AC_SUBST(CXXFLAGS_DBG)
AC_SUBST(CXXFLAGS_DVL)
AC_SUBST(CFLAGS_OPT)
AC_SUBST(CFLAGS_DBG)
AC_SUBST(CFLAGS_DVL)
AC_SUBST(LDFLAGS)
AC_SUBST(NODEPRECATEDFLAG)
AC_SUBST(CXXSHAREDFLAG)
AC_SUBST(RPATHFLAG)
AC_SUBST(PROFILING_FLAGS)
AC_SUBST(OPROFILE_FLAGS)
AC_SUBST(FLIBS)
AC_SUBST(METHOD)
# --------------------------------------------------------------
# This is a special test for the mpCC (IBM) compiler.
# mpCC fails the AC_LANG tests. Set the compiler to
# mpCC if it is there instead of xlC, but only do this
# _after_ configure is finished using CXX!
# --------------------------------------------------------------
AS_IF([test "$CXX" = xlC_r],
[
AC_CHECK_PROG(MPCXX,mpCC_r,mpCC_r,$CXX,$PATH)
CXX=$MPCXX
AS_IF([test "$CXX" = mpCC_r],
[AC_MSG_RESULT(<<< Using $CXX instead of xlC_r to compile C++ >>>)])
])
AS_IF([test "$CXX" = xlC],
[
AC_CHECK_PROG(MPCXX,mpCC,mpCC,$CXX,$PATH)
CXX=$MPCXX
AS_IF([test "$CXX" = mpCC],
[AC_MSG_RESULT(<<< Using $CXX instead of xlC to compile C++ >>>)])
])
# --------------------------------------------------------------
# --------------------------------------------------------------
# Get the source tree directory
# --------------------------------------------------------------
PWD=`pwd`
AC_SUBST(PWD)
# --------------------------------------------------------------
# configure parts of the libmesh core
# --------------------------------------------------------------
LIBMESH_CORE_FEATURES
# --------------------------------------------------------------
# configure TIMPI, which is practically libMesh core
#
# Use AX_SUBDIRS_CONFIGURE here so we get timpi_config.h before
# contrib/metaphysicl might need it later.
# --------------------------------------------------------------
AX_SUBDIRS_CONFIGURE([contrib/timpi])
# --------------------------------------------------------------
# configure optional, external packages and libraries
# --------------------------------------------------------------
LIBMESH_CONFIGURE_OPTIONAL_PACKAGES
# Query configuration environment
ACSM_SUMMARIZE_ENV
# Each example gets a makefile
AS_IF([test "x$enableexamples" = "xyes"],
[
AC_CONFIG_FILES([examples/introduction/introduction_ex1/Makefile
examples/introduction/introduction_ex2/Makefile
examples/introduction/introduction_ex3/Makefile
examples/introduction/introduction_ex4/Makefile
examples/introduction/introduction_ex5/Makefile
examples/adaptivity/adaptivity_ex1/Makefile
examples/adaptivity/adaptivity_ex2/Makefile
examples/adaptivity/adaptivity_ex3/Makefile
examples/adaptivity/adaptivity_ex4/Makefile
examples/adaptivity/adaptivity_ex5/Makefile
examples/adjoints/adjoints_ex1/Makefile
examples/adjoints/adjoints_ex2/Makefile
examples/adjoints/adjoints_ex3/Makefile
examples/adjoints/adjoints_ex4/Makefile
examples/adjoints/adjoints_ex5/Makefile
examples/adjoints/adjoints_ex6/Makefile
examples/adjoints/adjoints_ex7/Makefile
examples/eigenproblems/eigenproblems_ex1/Makefile
examples/eigenproblems/eigenproblems_ex2/Makefile
examples/eigenproblems/eigenproblems_ex3/Makefile
examples/fem_system/fem_system_ex1/Makefile
examples/fem_system/fem_system_ex2/Makefile
examples/fem_system/fem_system_ex3/Makefile
examples/fem_system/fem_system_ex4/Makefile
examples/fem_system/fem_system_ex5/Makefile
examples/solution_transfer/solution_transfer_ex1/Makefile
examples/miscellaneous/miscellaneous_ex1/Makefile
examples/miscellaneous/miscellaneous_ex2/Makefile
examples/miscellaneous/miscellaneous_ex3/Makefile
examples/miscellaneous/miscellaneous_ex4/Makefile
examples/miscellaneous/miscellaneous_ex5/Makefile
examples/miscellaneous/miscellaneous_ex6/Makefile
examples/miscellaneous/miscellaneous_ex7/Makefile
examples/miscellaneous/miscellaneous_ex8/Makefile
examples/miscellaneous/miscellaneous_ex9/Makefile
examples/miscellaneous/miscellaneous_ex10/Makefile
examples/miscellaneous/miscellaneous_ex11/Makefile
examples/miscellaneous/miscellaneous_ex12/Makefile
examples/miscellaneous/miscellaneous_ex13/Makefile
examples/miscellaneous/miscellaneous_ex14/Makefile
examples/miscellaneous/miscellaneous_ex15/Makefile
examples/optimization/optimization_ex1/Makefile
examples/optimization/optimization_ex2/Makefile
examples/subdomains/subdomains_ex1/Makefile
examples/subdomains/subdomains_ex2/Makefile
examples/subdomains/subdomains_ex3/Makefile
examples/systems_of_equations/systems_of_equations_ex1/Makefile
examples/systems_of_equations/systems_of_equations_ex2/Makefile
examples/systems_of_equations/systems_of_equations_ex3/Makefile
examples/systems_of_equations/systems_of_equations_ex4/Makefile
examples/systems_of_equations/systems_of_equations_ex5/Makefile
examples/systems_of_equations/systems_of_equations_ex6/Makefile
examples/systems_of_equations/systems_of_equations_ex7/Makefile
examples/systems_of_equations/systems_of_equations_ex8/Makefile
examples/systems_of_equations/systems_of_equations_ex9/Makefile
examples/reduced_basis/reduced_basis_ex1/Makefile
examples/reduced_basis/reduced_basis_ex2/Makefile
examples/reduced_basis/reduced_basis_ex3/Makefile
examples/reduced_basis/reduced_basis_ex4/Makefile
examples/reduced_basis/reduced_basis_ex5/Makefile
examples/reduced_basis/reduced_basis_ex6/Makefile
examples/reduced_basis/reduced_basis_ex7/Makefile
examples/transient/transient_ex1/Makefile
examples/transient/transient_ex2/Makefile
examples/vector_fe/vector_fe_ex1/Makefile
examples/vector_fe/vector_fe_ex2/Makefile
examples/vector_fe/vector_fe_ex3/Makefile
examples/vector_fe/vector_fe_ex4/Makefile
examples/vector_fe/vector_fe_ex5/Makefile
examples/Makefile])
])
# hackery. If we are supporting nested autoconf packages and we want to specify
# additional arguments to be passed to those packages, do that here.
# Specifically, we append libmesh_subpackage_arguments to ac_configure_args
# before AC_OUTPUT recurses into our subpackages
AS_IF([test "x$enablenested" = "xyes"],
[
ac_configure_args_SAVE="$ac_configure_args"
ac_configure_args="$ac_configure_args $libmesh_subpackage_arguments CXX='$CXX' CC='$CC' F77='$F77' FC='$FC' CPPFLAGS='$HDF5_CPPFLAGS $CPPFLAGS' LIBS='$HDF5_LIBS $LIBS'"
])
# Create output files. Also configures any subpackages
AC_OUTPUT
# end hackery
AS_IF([test "x$enablenested" = "xyes"],
[ac_configure_args="$ac_configure_args_SAVE"])
# Final summary
AX_SUMMARIZE_CONFIG
AC_MSG_RESULT(---------------------------------------------)
AC_MSG_RESULT(--------- Done Configuring libMesh ----------)
AC_MSG_RESULT(---------------------------------------------)
# rm -f -r conftest* config.cache include/libmesh/libmesh_config.h.tmp