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