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Since ompi_info is no longer written in C++, we no longer require a

C++ compiler in configure.  If we have a C++ compiler, then the MPI
C++ bindings are built by default.  If we don't have a C++ compiler,
then the MPI C++ bindings are not built by default.

--enable-mpi-cxx will now force an error if there is no C++ compiler
available.  --disable-mpi-cxx (or the lack of a C++ compiler) will now
disable many of the C++ compiler checks in configure.

Note that there are a few items to clean up regarding the difference
between C's _Bool type and C++'s bool type.  Right now, we assume that
they are the same.  But they aren't, and they shouldn't be treated as
such.  This cleanup will be forced in MPI-2.2 with the introduction of
the MPI_C_BOOL MPI datatype.

This commit was SVN r21755.
Этот коммит содержится в:
Jeff Squyres 2009-08-04 11:54:01 +00:00
родитель 5155eaf945
Коммит 90d6491737
7 изменённых файлов: 277 добавлений и 139 удалений

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@ -13,7 +13,7 @@ dnl All rights reserved.
dnl Copyright (c) 2006 Los Alamos National Security, LLC. All rights
dnl reserved.
dnl Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
dnl Copyright (c) 2008 Cisco Systems, Inc. All rights reserved.
dnl Copyright (c) 2008-20009 Cisco Systems, Inc. All rights reserved.
dnl $COPYRIGHT$
dnl
dnl Additional copyrights may follow
@ -27,9 +27,99 @@ dnl
# this macro.
AC_DEFUN([OMPI_SETUP_CXX],[
AC_REQUIRE([_OMPI_START_SETUP_CXX])
AC_REQUIRE([_OMPI_PROG_CXX])
ompi_show_subtitle "C++ compiler and preprocessor"
_OMPI_SETUP_CXX_COMPILER
_OMPI_CXX_CHECK_EXCEPTIONS
AS_IF([test "$WANT_MPI_CXX_SUPPORT" = "1"],
[OMPI_CXX_FIND_TEMPLATE_REPOSITORY
OMPI_CXX_FIND_TEMPLATE_PARAMETERS
OMPI_CHECK_IDENT([CXX], [CXXFLAGS], [cc], [C++])])
_OMPI_CXX_CHECK_BUILTIN
_OMPI_CXX_CHECK_2D_CONST_CAST
])
# _OMPI_SETUP_CXX_COMPILER()
# --------------------------
# Setup the CXX compiler
AC_DEFUN([_OMPI_SETUP_CXX_COMPILER],[
# There's a few cases here:
#
# 1. --enable-mpi-cxx was supplied: error if we don't find a C++
# compiler
# 2. --disable-mpi-cxx was supplied: check for a C++ compiler anyway
# (so we can have a functional mpic++ wrapper compiler), but
# don't error if we don't find one.
# 3. neither was specified: same was #2
#
# Then only proceed to do all the rest of the C++ checks if we
# both found a c++ compiler and want the C++ bindings (i.e., either
# case #1 or #3)
ompi_cxxflags_save="$CXXFLAGS"
AC_PROG_CXX
AC_PROG_CXXCPP
BASECXX="`basename $CXX`"
CXXFLAGS="$ompi_cxxflags_save"
AS_IF([test "x$CXX" = "x"], [CXX=none])
set dummy $CXX
ompi_cxx_argv0=[$]2
OMPI_WHICH([$ompi_cxx_argv0], [OMPI_CXX_ABSOLUTE])
AS_IF([test "x$OMPI_CXX_ABSOLUTE" = "x"], [OMPI_CXX_ABSOLUTE=none])
AC_DEFINE_UNQUOTED(OMPI_CXX, "$CXX", [OMPI underlying C++ compiler])
AC_SUBST(OMPI_CXX_ABSOLUTE)
AS_IF([test "$CXX" = "none"],
[AS_IF([test "$enable_mpi_cxx" = "yes"],
[AC_MSG_WARN([Could not find functional C++ compiler, but])
AC_MSG_WARN([support for the C++ MPI bindings was requested])
AC_MSG_ERROR([Cannot continue])],
[WANT_MPI_CXX_SUPPORT=0])],
[
# Make sure that the C++ compiler both works and is
# actually a C++ compiler (if not cross-compiling). Don't
# just use the AC macro so that we can have a pretty
# message. Do something here that should force the linking
# of C++-specific things (e.g., STL strings) so that we can
# force a hard check of compiling, linking, and running a
# C++ application. Note that some C compilers, such as at
# least some versions of the GNU and Intel compilers, will
# detect that the file extension is ".cc" and therefore
# switch into a pseudo-C++ personality which works for
# *compiling*, but does not work for *linking*. So in this
# test, we want to cover the entire spectrum (compiling,
# linking, running). Note that it is not a fatal error if
# the C++ compiler does not work unless the user
# specifically requested the C++ bindings.
AS_IF([test "$ompi_cv_cxx_compiler_vendor" != "microsoft" ],
[OMPI_CHECK_COMPILER_WORKS([C++], [#include <string>
],
[std::string foo = "Hello, world"], [],
[WANT_MPI_CXX_SUPPORT=0])])])
AC_MSG_CHECKING([if able to build the MPI C++ bindings])
AS_IF([test "$WANT_MPI_CXX_SUPPORT" = "1"],
[AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])
AS_IF([test "$enable_mpi_cxx" = "yes"],
[AC_MSG_WARN([MPI C++ binding support requested but not delivered])
AC_MSG_ERROR([Cannot continue])])])
AS_IF([test "$WANT_MPI_CXX_SUPPORT" = "1"],
[OMPI_CXX_COMPILER_VENDOR([ompi_cxx_vendor])])
])
# _OMPI_SETUP_CXX_COMPILER_BACKEND()
# ----------------------------------
# Back end of _OMPI_SETUP_CXX_COMPILER_BACKEND()
AC_DEFUN([_OMPI_SETUP_CXX_COMPILER_BACKEND],[
# Do we want code coverage
if test "$WANT_COVERAGE" = "1"; then
if test "$ompi_cxx_vendor" = "gnu" ; then
@ -100,6 +190,65 @@ AC_DEFUN([OMPI_SETUP_CXX],[
unset add
fi
# Make sure we can link with the C compiler
if[ test "$ompi_cv_cxx_compiler_vendor" != "microsoft" ]; then
OMPI_LANG_LINK_WITH_C([C++], [],
[cat <<EOF >&2
**********************************************************************
* It appears that your C++ compiler is unable to link against object
* files created by your C compiler. This generally indicates either
* a conflict between the options specified in CFLAGS and CXXFLAGS
* or a problem with the local compiler installation. More
* information (including exactly what command was given to the
* compilers and what error resulted when the commands were executed) is
* available in the config.log file in this directory.
**********************************************************************
EOF
AC_MSG_ERROR([C and C++ compilers are not link compatible. Can not continue.])])
fi
# If we are on HP-UX, ensure that we're using aCC
case "$host" in
*hpux*)
if test "$BASECXX" = "CC"; then
AC_MSG_WARN([*** You will probably have problems compiling the MPI 2])
AC_MSG_WARN([*** C++ bindings with the HP-UX CC compiler. You should])
AC_MSG_WARN([*** probably be using the aCC compiler. Re-run configure])
AC_MSG_WARN([*** with the environment variable "CXX=aCC".])
fi
;;
esac
# Note: gcc-imperonating compilers accept -O3
if test "$WANT_DEBUG" = "1"; then
OPTFLAGS=
else
if test "$GXX" = yes; then
OPTFLAGS="-O3"
else
OPTFLAGS="-O"
fi
fi
# config/ompi_check_optflags.m4
OMPI_CHECK_OPTFLAGS(["$CXXFLAGS"])
AC_MSG_CHECKING([for C++ optimization flags])
AC_MSG_RESULT([$co_result])
CXXFLAGS="$co_result"
# bool type size and alignment
AC_LANG_PUSH(C++)
AC_CHECK_SIZEOF(bool)
OMPI_C_GET_ALIGNMENT(bool, OPAL_ALIGNMENT_CXX_BOOL)
AC_LANG_POP(C++)
])
# _OMPI_CXX_CHECK_EXCEPTIONS()
# ----------------------------
# Check for exceptions, skipping the test if we don't want the C++
# bindings
AC_DEFUN([_OMPI_CXX_CHECK_EXCEPTIONS],[
# Check for special things due to C++ exceptions
ENABLE_CXX_EXCEPTIONS=no
HAVE_CXX_EXCEPTIONS=0
@ -109,6 +258,23 @@ AC_DEFUN([OMPI_SETUP_CXX],[
[ENABLE_CXX_EXCEPTIONS="$enableval"])
AC_MSG_CHECKING([if want C++ exception handling])
AS_IF([test "$WANT_MPI_CXX_SUPPORT" = "0"],
[AS_IF([test "$$enable_cxx_exceptions" = "yes"],
[AC_MSG_RESULT([error])
AC_MSG_WARN([--enable-cxx-exceptions was specified, but the MPI C++ bindings were disabled])
AC_MSG_ERROR([Cannot continue])],
[AC_MSG_RESULT([skipped])])],
[_OMPI_CXX_CHECK_EXCEPTIONS_BACKEND])
AC_DEFINE_UNQUOTED(OMPI_HAVE_CXX_EXCEPTION_SUPPORT, $HAVE_CXX_EXCEPTIONS,
[Whether or not we have compiled with C++ exceptions support])
])
# _OMPI_CXX_CHECK_EXCEPTIONS_BACKEND()
# ------------------------------------
# Back end of _OMPI_CXX_CHECK_EXCEPTIONS
AC_DEFUN([_OMPI_CXX_CHECK_EXCEPTIONS_BACKEND],[
AC_MSG_RESULT([$ENABLE_CXX_EXCEPTIONS])
if test "$ENABLE_CXX_EXCEPTIONS" = "yes"; then
# config/cxx_have_exceptions.m4
@ -144,32 +310,33 @@ AC_DEFUN([OMPI_SETUP_CXX],[
WRAPPER_EXTRA_CXXFLAGS="$OMPI_CXX_EXCEPTIONS_CXXFLAGS ${WRAPPER_EXTRA_CXXFLAGS}"
fi
fi
AC_DEFINE_UNQUOTED(OMPI_HAVE_CXX_EXCEPTION_SUPPORT, $HAVE_CXX_EXCEPTIONS,
[Whether or not we have compiled with C++ exceptions support])
])
# Make sure we can link with the C compiler
if[ test "$ompi_cv_cxx_compiler_vendor" != "microsoft" ]; then
OMPI_LANG_LINK_WITH_C([C++], [],
[cat <<EOF >&2
**********************************************************************
* It appears that your C++ compiler is unable to link against object
* files created by your C compiler. This generally indicates either
* a conflict between the options specified in CFLAGS and CXXFLAGS
* or a problem with the local compiler installation. More
* information (including exactly what command was given to the
* compilers and what error resulted when the commands were executed) is
* available in the config.log file in this directory.
**********************************************************************
EOF
AC_MSG_ERROR([C and C++ compilers are not link compatible. Can not continue.])])
fi
# _OMPI_CXX_CHECK_BUILTIN
# -----------------------
# Check for __builtin_* stuff
AC_DEFUN([_OMPI_CXX_CHECK_BUILTIN],[
OMPI_VAR_SCOPE_PUSH([have_cxx_builtin_expect have_cxx_builtin_prefetch])
have_cxx_builtin_expect=0
have_cxx_builtin_prefectch=0
# Find some more characteristics of the C++ compiler
AS_IF([test "$WANT_MPI_CXX_SUPPORT" = "1"],
[_OMPI_CXX_CHECK_BUILTIN_BACKEND])
# config/cxx_find_template_repository.m4
OMPI_CXX_FIND_TEMPLATE_REPOSITORY
# config/cxx_find_template_parameters.m4
OMPI_CXX_FIND_TEMPLATE_PARAMETERS
AC_DEFINE_UNQUOTED([OMPI_CXX_HAVE_BUILTIN_EXPECT],
[$have_cxx_builtin_expect],
[Whether C++ compiler supports __builtin_expect])
AC_DEFINE_UNQUOTED([OMPI_CXX_HAVE_BUILTIN_PREFETCH],
[$have_cxx_builtin_prefetch],
[Whether C++ compiler supports __builtin_prefetch])
OMPI_VAR_SCOPE_POP
])
# _OMPI_CXX_CHECK_BUILTIN_BACKEND
# -------------------------------
# Back end of _OMPI_CXX_CHECK_BUILTIN
AC_DEFUN([_OMPI_CXX_CHECK_BUILTIN_BACKEND],[
# see if the C++ compiler supports __builtin_expect
AC_LANG_PUSH(C++)
@ -182,11 +349,7 @@ EOF
[ompi_cv_cxx_supports___builtin_expect="no"])])
if test "$ompi_cv_cxx_supports___builtin_expect" = "yes" ; then
have_builtin_expect=1
else
have_builtin_expect=0
fi
AC_DEFINE_UNQUOTED([OMPI_CXX_HAVE_BUILTIN_EXPECT], [$have_builtin_expect],
[Whether C++ compiler supports __builtin_expect])
AC_LANG_POP(C++)
# see if the C compiler supports __builtin_prefetch
@ -200,25 +363,32 @@ EOF
[ompi_cv_cxx_supports___builtin_prefetch="no"])])
if test "$ompi_cv_cxx_supports___builtin_prefetch" = "yes" ; then
have_builtin_prefetch=1
else
have_builtin_prefetch=0
fi
AC_DEFINE_UNQUOTED([OMPI_CXX_HAVE_BUILTIN_PREFETCH], [$have_builtin_prefetch],
[Whether C++ compiler supports __builtin_prefetch])
AC_LANG_POP(C++)
])
# If we are on HP-UX, ensure that we're using aCC
case "$host" in
*hpux*)
if test "$BASECXX" = "CC"; then
AC_MSG_WARN([*** You will probably have problems compiling the MPI 2])
AC_MSG_WARN([*** C++ bindings with the HP-UX CC compiler. You should])
AC_MSG_WARN([*** probably be using the aCC compiler. Re-run configure])
AC_MSG_WARN([*** with the environment variable "CXX=aCC".])
fi
;;
esac
# _OMPI_CXX_CHECK_2D_CONST_CAST
# -----------------------------
# Check for compiler support of 2D const casts
AC_DEFUN([_OMPI_CXX_CHECK_2D_CONST_CAST],[
OMPI_VAR_SCOPE_PUSH([use_2d_const_cast])
use_2d_const_cast=0
AS_IF([test "$WANT_MPI_CXX_SUPPORT" = "1"],
[_OMPI_CXX_CHECK_2D_CONST_CAST_BACKEND])
AC_DEFINE_UNQUOTED([OMPI_CXX_SUPPORTS_2D_CONST_CAST],
[$use_2d_const_cast],
[Whether a const_cast on a 2-d array will work with the C++ compiler])
OMPI_VAR_SCOPE_POP
])
# _OMPI_CXX_CHECK_2D_CONST_CAST_BACKEND
# ---------------------------------
# Back end of _OMPI_CHECK_2D_CONST_CAST
AC_DEFUN([_OMPI_CXX_CHECK_2D_CONST_CAST_BACKEND],[
# see if the compiler supports const_cast of 2-dimensional arrays
AC_LANG_PUSH(C++)
AC_CACHE_CHECK([if $CXX supports const_cast<> properly],
@ -232,69 +402,6 @@ int cast_test(const int ranges[][3]) {
[ompi_cv_cxx_supports_2d_const_cast="no"])])
if test "$ompi_cv_cxx_supports_2d_const_cast" = "yes" ; then
use_2d_const_cast=1
else
use_2d_const_cast=0
fi
AC_DEFINE_UNQUOTED([OMPI_CXX_SUPPORTS_2D_CONST_CAST],
[$use_2d_const_cast],
[Whether a const_cast on a 2-d array will work with the C++ compiler])
unset use_2d_const_cast
AC_LANG_POP(C++)
# Note: gcc-imperonating compilers accept -O3
if test "$WANT_DEBUG" = "1"; then
OPTFLAGS=
else
if test "$GXX" = yes; then
OPTFLAGS="-O3"
else
OPTFLAGS="-O"
fi
fi
# config/ompi_check_optflags.m4
OMPI_CHECK_OPTFLAGS(["$CXXFLAGS"])
AC_MSG_CHECKING([for C++ optimization flags])
AC_MSG_RESULT([$co_result])
CXXFLAGS="$co_result"
])
AC_DEFUN([_OMPI_START_SETUP_CXX],[
ompi_show_subtitle "C++ compiler and preprocessor"
])
AC_DEFUN([_OMPI_PROG_CXX],[
ompi_cxxflags_save="$CXXFLAGS"
AC_PROG_CXX
AC_PROG_CXXCPP
BASECXX="`basename $CXX`"
CXXFLAGS="$ompi_cxxflags_save"
AC_DEFINE_UNQUOTED(OMPI_CXX, "$CXX", [OMPI underlying C++ compiler])
set dummy $CXX
ompi_cxx_argv0=[$]2
OMPI_WHICH([$ompi_cxx_argv0], [OMPI_CXX_ABSOLUTE])
AC_SUBST(OMPI_CXX_ABSOLUTE)
OMPI_CXX_COMPILER_VENDOR([ompi_cxx_vendor])
# Make sure that the C++ compiler both works and is actually a C++
# compiler (if not cross-compiling). Don't just use the AC macro
# so that we can have a pretty message. Do something here that
# should force the linking of C++-specific things (e.g., STL
# strings) so that we can force a hard check of compiling,
# linking, and running a C++ application Note that some C
# compilers, such as at least some versions of the GNU and Intel
# compilers, will detect that the file extension is ".cc" and
# therefore switch into a pseudo-C++ personality which works for
# *compiling*, but does not work for *linking*. So in this test,
# we want to cover the entire spectrum (compiling, linking,
# running).
if[ test "$ompi_cv_cxx_compiler_vendor" != "microsoft" ]; then
OMPI_CHECK_COMPILER_WORKS([C++], [#include <string>],
[std::string foo = "Hello, world"], [],
[AC_MSG_ERROR([Could not run a simple C++ program. Aborting.])])
fi
])

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@ -12,6 +12,7 @@ dnl Copyright (c) 2004-2005 The Regents of the University of California.
dnl All rights reserved.
dnl Copyright (c) 2006 Sun Microsystems, Inc. All rights reserved.
dnl Use is subject to license terms.
dnl Copyright (c) 2009 Cisco Systems, Inc. All rights reserved.
dnl $COPYRIGHT$
dnl
dnl Additional copyrights may follow
@ -231,10 +232,15 @@ AC_DEFUN([OMPI_SETUP_WRAPPER_FINAL],[
AC_MSG_RESULT([$OMPI_WRAPPER_EXTRA_INCLUDES])
# language binding support. C++ is a bit different, as the
# compiler should work even if there is no language support.
# compiler should work even if there is no MPI C++ bindings
# support. However, we do want it to fail if there is no C++
# compiler.
if test "$WANT_MPI_CXX_SUPPORT" = "1" ; then
OMPI_WRAPPER_CXX_LIB="-lmpi_cxx"
OMPI_WRAPPER_CXX_REQUIRED_FILE=""
elif test "$CXX" = "none"; then
OMPI_WRAPPER_CXX_LIB=""
OMPI_WRAPPER_CXX_REQUIRED_FILE="not supported"
else
OMPI_WRAPPER_CXX_LIB=""
OMPI_WRAPPER_CXX_REQUIRED_FILE=""

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@ -9,7 +9,7 @@ dnl Copyright (c) 2004-2006 High Performance Computing Center Stuttgart,
dnl University of Stuttgart. All rights reserved.
dnl Copyright (c) 2004-2005 The Regents of the University of California.
dnl All rights reserved.
dnl Copyright (c) 2008 Cisco Systems, Inc. All rights reserved.
dnl Copyright (c) 2008-2009 Cisco Systems, Inc. All rights reserved.
dnl $COPYRIGHT$
dnl
dnl Additional copyrights may follow
@ -970,9 +970,10 @@ AC_MSG_ERROR([Can not continue.])
OMPI_CHECK_INLINE_C_GCC([$OMPI_GCC_INLINE_ASSIGN])
OMPI_CHECK_INLINE_C_DEC
OMPI_CHECK_INLINE_C_XLC
OMPI_CHECK_INLINE_CXX_GCC([$OMPI_GCC_INLINE_ASSIGN])
OMPI_CHECK_INLINE_CXX_DEC
OMPI_CHECK_INLINE_CXX_XLC
AS_IF([test "$WANT_MPI_CXX_SUPPORT" = "1"],
[OMPI_CHECK_INLINE_CXX_GCC([$OMPI_GCC_INLINE_ASSIGN])
OMPI_CHECK_INLINE_CXX_DEC
OMPI_CHECK_INLINE_CXX_XLC])
# format:
# config_file-text-global-label_suffix-gsym-lsym-type-size-align_log-ppc_r_reg-64_bit-gnu_stack

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@ -224,11 +224,11 @@ AC_DEFUN([OMPI_SETUP_CC],[
[ompi_cv_cc_supports___builtin_expect="yes"],
[ompi_cv_cc_supports___builtin_expect="no"])])
if test "$ompi_cv_cc_supports___builtin_expect" = "yes" ; then
have_builtin_expect=1
have_cc_builtin_expect=1
else
have_builtin_expect=0
have_cc_builtin_expect=0
fi
AC_DEFINE_UNQUOTED([OPAL_C_HAVE_BUILTIN_EXPECT], [$have_builtin_expect],
AC_DEFINE_UNQUOTED([OPAL_C_HAVE_BUILTIN_EXPECT], [$have_cc_builtin_expect],
[Whether C compiler supports __builtin_expect])
# see if the C compiler supports __builtin_prefetch
@ -240,11 +240,11 @@ AC_DEFUN([OMPI_SETUP_CC],[
[ompi_cv_cc_supports___builtin_prefetch="yes"],
[ompi_cv_cc_supports___builtin_prefetch="no"])])
if test "$ompi_cv_cc_supports___builtin_prefetch" = "yes" ; then
have_builtin_prefetch=1
have_cc_builtin_prefetch=1
else
have_builtin_prefetch=0
have_cc_builtin_prefetch=0
fi
AC_DEFINE_UNQUOTED([OPAL_C_HAVE_BUILTIN_PREFETCH], [$have_builtin_prefetch],
AC_DEFINE_UNQUOTED([OPAL_C_HAVE_BUILTIN_PREFETCH], [$have_cc_builtin_prefetch],
[Whether C compiler supports __builtin_prefetch])
# Preload the optflags for the case where the user didn't specify

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@ -348,6 +348,7 @@ AC_INCLUDES_DEFAULT]],
AC_DEFINE_UNQUOTED(OPAL_NEED_C_BOOL, $OPAL_NEED_C_BOOL,
[Whether the C compiler supports "bool" without any other help (such as <stdbool.h>)])
AC_MSG_RESULT([$MSG])
AC_CHECK_SIZEOF(_Bool)
#
# Check for other compiler characteristics
@ -447,20 +448,6 @@ AC_DEFINE_UNQUOTED(OPAL_HAVE_WEAK_SYMBOLS, $OPAL_C_HAVE_WEAK_SYMBOLS,
OMPI_SETUP_CXX
# Does the compiler support "ident"-like constructs?
OMPI_CHECK_IDENT([CXX], [CXXFLAGS], [cc], [C++])
# check for type sizes
AC_LANG_PUSH(C++)
AC_CHECK_SIZEOF(bool)
# check for type alignments
OMPI_C_GET_ALIGNMENT(bool, OPAL_ALIGNMENT_CXX_BOOL)
AC_LANG_POP(C++)
# check if we want C++ support
AM_CONDITIONAL(WANT_MPI_CXX_BINDINGS,
@ -473,6 +460,9 @@ AC_DEFINE_UNQUOTED(OMPI_WANT_CXX_BINDINGS, $WANT_MPI_CXX_SUPPORT,
# Only after setting up both
# C and C++ check compiler attributes.
##################################
ompi_show_subtitle "Compiler characteristics"
OMPI_CHECK_ATTRIBUTES
OPAL_CHECK_COMPILER_VERSION_ID

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@ -547,8 +547,8 @@ void ompi_info_do_config(bool want_all)
debug = OPAL_ENABLE_DEBUG ? "yes" : "no";
mpi_interface_warning = OMPI_WANT_MPI_INTERFACE_WARNING ? "yes" : "no";
cprofiling = OMPI_ENABLE_MPI_PROFILING ? "yes" : "no";
cxxprofiling = OMPI_ENABLE_MPI_PROFILING ? "yes" : "no";
cxxexceptions = OMPI_HAVE_CXX_EXCEPTION_SUPPORT ? "yes" : "no";
cxxprofiling = (OMPI_WANT_CXX_BINDINGS && OMPI_ENABLE_MPI_PROFILING) ? "yes" : "no";
cxxexceptions = (OMPI_WANT_CXX_BINDINGS && OMPI_HAVE_CXX_EXCEPTION_SUPPORT) ? "yes" : "no";
f77profiling = (OMPI_ENABLE_MPI_PROFILING && OMPI_WANT_F77_BINDINGS) ? "yes" : "no";
f90profiling = (OMPI_ENABLE_MPI_PROFILING && OMPI_WANT_F90_BINDINGS) ? "yes" : "no";
want_libltdl = OPAL_WANT_LIBLTDL ? "yes" : "no";
@ -605,6 +605,13 @@ void ompi_info_do_config(bool want_all)
if (want_all) {
ompi_info_out_int("C char size", "compiler:c:sizeof:char", sizeof(char));
/* JMS: should be fixed in MPI-2.2 to differentiate between C
_Bool and C++ bool. For the moment, the code base assumes
that they are the same. Because of opal_config_bottom.h,
we can sizeof(bool) here, so we might as well -- even
though this technically isn't right. This should be fixed
when we update to MPI-2.2. See below for note about C++
bool alignment. */
ompi_info_out_int("C bool size", "compiler:c:sizeof:bool", sizeof(bool));
ompi_info_out_int("C short size", "compiler:c:sizeof:short", sizeof(short));
ompi_info_out_int("C int size", "compiler:c:sizeof:int", sizeof(int));
@ -613,15 +620,21 @@ void ompi_info_do_config(bool want_all)
ompi_info_out_int("C double size", "compiler:c:sizeof:double", sizeof(double));
ompi_info_out_int("C pointer size", "compiler:c:sizeof:pointer", sizeof(void *));
ompi_info_out_int("C char align", "compiler:c:align:char", OPAL_ALIGNMENT_CHAR);
#if OMPI_WANT_CXX_BINDINGS
/* JMS: See above for note about C++ bool size. We don't have
the bool alignment the way configure currently runs -- need
to clean this up when we update for MPI-2.2. */
ompi_info_out_int("C bool align", "compiler:c:align:bool", OPAL_ALIGNMENT_CXX_BOOL);
#else
ompi_info_out("C bool align", "compiler:c:align:bool", "skipped");
#endif
ompi_info_out_int("C int align", "compiler:c:align:int", OPAL_ALIGNMENT_INT);
ompi_info_out_int("C float align", "compiler:c:align:float", OPAL_ALIGNMENT_FLOAT);
ompi_info_out_int("C double align", "compiler:c:align:double", OPAL_ALIGNMENT_DOUBLE);
}
ompi_info_out("C++ compiler", "compiler:cxx:command", OMPI_CXX);
ompi_info_out("C++ compiler absolute", "compiler:cxx:absolute", OMPI_CXX_ABSOLUTE);
ompi_info_out("Fortran77 compiler", "compiler:f77:command", OMPI_F77);
ompi_info_out("Fortran77 compiler abs", "compiler:f77:absolute",
OMPI_F77_ABSOLUTE);

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@ -10,6 +10,7 @@
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2009 Sun Microsystems, Inc. All rights reserved.
* Copyright (c) 2009 Cisco Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
@ -290,8 +291,20 @@ typedef OPAL_PTRDIFF_TYPE ptrdiff_t;
# if OPAL_USE_STDBOOL_H
/* If we're using <stdbool.h>, there is an implicit
assumption that the C++ bool is the same size and has
the same alignment. */
the same alignment. However, configure may have
disabled the MPI C++ bindings, so if "_Bool" exists,
then use that sizeof. */
# include <stdbool.h>
/* This section exists because AC_SIZEOF(bool) may not be
run in configure if we're not building the MPI C++
bindings. */
# undef SIZEOF_BOOL
# if SIZEOF__BOOL > 0
# define SIZEOF_BOOL SIZEOF__BOOL
# else
/* If all else fails, assume it's 1 */
# define SIZEOF_BOOL 1
# endif
# else
/* We need to create a bool type and ensure that it's the
same size / alignment as the C++ bool size /
@ -308,8 +321,16 @@ typedef int bool;
typedef long bool;
# elif defined(SIZEOF_LONG_LONG) && defined(OPAL_ALIGNMENT_LONG) && SIZEOF_BOOL == SIZEOF_LONG && OPAL_ALIGNMENT_CXX_BOOL == OPAL_ALIGNMENT_LONG
typedef long long bool;
/* If we have _Bool, use that */
# elif SIZEOF__BOOL > 0
# undef SIZEOF_BOOL
# define bool _Bool
# define SIZEOF_BOOL SIZEOF__BOOL
# else
# error Cannot find a C type that corresponds to the size and alignment of C++ bool!
/* If all else fails, just make bool be an unsigned char
and size of 1 */
typedef unsigned char bool;
# define SIZEOF_BOOL 1
# endif
# endif /* OPAL_USE_STDBOOL_H */
# endif /* OPAL_NEED_C_BOOL */