1
1
openmpi/config/lam_setup_cxx.m4
Brian Barrett 1e051564fc * Made f90 module building default again
* clean up the output for --enable-debug and --enable-picky (for C++)

This commit was SVN r1004.
2004-03-28 20:39:15 +00:00

117 строки
3.2 KiB
Bash

dnl -*- shell-script -*-
dnl
dnl $HEADER$
dnl
AC_DEFUN([LAM_SETUP_CXX],[
# Modularize this setup so that sub-configure.in scripts can use this
# same setup code.
lam_show_subtitle "C++ compiler and preprocessor"
lam_cxxflags_save="$CXXFLAGS"
AC_PROG_CXX
AC_PROG_CXXCPP
BASECXX="`basename $CXX`"
CXXFLAGS="$lam_cxxflags_save"
AC_DEFINE_UNQUOTED(LAM_CXX, "$CXX", [LAM underlying C++ compiler])
# Do we want debugging?
if test "$WANT_DEBUG" = "1"; then
CXXFLAGS="$CFLAGS -g"
LAM_UNIQ(CXXFLAGS)
AC_MSG_WARN([-g has been added to CXXFLAGS (--enable-debug)])
fi
LAM_CXXFLAGS_BEFORE_PICKY="$CXXFLAGS"
if test "$GCC" = "yes" -a "$WANT_PICKY_COMPILER" = 1; then
add="-g -Wall -Wundef -Wno-long-long"
add="$add -Wmissing-prototypes -Wstrict-prototypes"
# see if -Wno-long-double works...
AC_LANG_PUSH(C++)
CXXFLAGS_orig="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -Wno-long-double"
AC_TRY_COMPILE([], [], add="$add -Wno-long-double")
CXXFLAGS="$CXXFLAGS_orig"
AC_LANG_POP(C++)
add="$add -Werror-implicit-function-declaration "
CXXFLAGS="$CXXFLAGS $add"
LAM_UNIQ(CXXFLAGS)
AC_MSG_WARN([$add has been added to CXXFLAGS (developer copy)])
unset add
fi
# Check for special things due to C++ exceptions
WRAPPER_EXTRA_CFLAGS=
WRAPPER_EXTRA_FFLAGS=
WRAPPER_EXTRA_CXXFLAGS=
WRAPPER_EXTRA_LDFLAGS=
WRAPPER_EXTRA_LIBS=
ENABLE_CXX_EXCEPTIONS=no
HAVE_CXX_EXCEPTIONS=0
AC_ARG_ENABLE(cxx-exceptions,
AC_HELP_STRING([--enable-cxx-exceptions],
[enable support for C++ exceptions]),
[ENABLE_CXX_EXCEPTIONS="$enableval"])
AC_MSG_CHECKING([if want C++ exception handling])
AC_MSG_RESULT([$ENABLE_CXX_EXCEPTIONS])
if test "$ENABLE_CXX_EXCEPTIONS" = "yes"; then
# config/cxx_have_exceptions.m4
LAM_CXX_HAVE_EXCEPTIONS
# config/cxx_find_exception_flags.m4
LAM_CXX_FIND_EXCEPTION_FLAGS
if test "$LAM_CXX_EXCEPTIONS" = "1"; then
HAVE_CXX_EXCEPTIONS=1
CFLAGS="$CFLAGS $LAM_CXX_EXCEPTIONS_CXXFLAGS"
FFLAGS="$FFLAGS $LAM_CXX_EXCEPTIONS_CXXFLAGS"
CXXFLAGS="$CXXFLAGS $LAM_CXX_EXCEPTIONS_CXXFLAGS"
LDFLAGS="$LDFLAGS $LAM_CXX_EXCEPTIONS_LDFLAGS"
WRAPPER_EXTRA_CFLAGS="$LAM_CXX_EXCEPTIONS_CXXFLAGS"
WRAPPER_EXTRA_FFLAGS="$LAM_CXX_EXCEPTIONS_CXXFLAGS"
WRAPPER_EXTRA_CXXFLAGS="$LAM_CXX_EXCEPTIONS_CXXFLAGS"
fi
fi
AC_DEFINE_UNQUOTED(LAM_HAVE_CXX_EXCEPTION_SUPPORT, $HAVE_CXX_EXCEPTIONS,
[Whether or not we have compiled with C++ exceptions support])
# Find some more characteristics of the C++ compiler
# config/cxx_find_template_repository.m4
LAM_CXX_FIND_TEMPLATE_REPOSITORY
# config/cxx_find_template_parameters.m4
LAM_CXX_FIND_TEMPLATE_PARAMETERS
# If we are on HP-UX, ensure that we're using aCC
case "$host" in
*hpux*)
if test "$BASECXX" = "CC"; then
AC_MSG_WARN([*** You will probably have problems compiling the MPI 2])
AC_MSG_WARN([*** C++ bindings with the HP-UX CC compiler. You should])
AC_MSG_WARN([*** probably be using the aCC compiler. Re-run configure])
AC_MSG_WARN([*** with the environment variable "CXX=aCC".])
fi
;;
esac
# Same rationale for g++ as with gcc in LAM_SETUP_CC.
if test "$GXX" = yes; then
OPTFLAGS="-O3"
else
OPTFLAGS="-O"
fi
# config/lam_check_optflags.m4
LAM_CHECK_OPTFLAGS("$CXXFLAGS")
AC_MSG_CHECKING([for C++ optimization flags])
AC_MSG_RESULT([$co_result])
CXXFLAGS="$co_result"
])