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openmpi/config/ompi_setup_cc.m4
George Bosilca 1fbccda986 -g3 is definitively not a standard gcc option, at least not on anything
else than a quite recent version. Using this option prevent gdb from accessing
the contents of some of the structures. The error message is:
Unexpected type (0) encountered for integer constant.

This commit was SVN r9994.
2006-05-19 22:09:29 +00:00

206 строки
7.0 KiB
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dnl -*- shell-script -*-
dnl
dnl Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
dnl University Research and Technology
dnl Corporation. All rights reserved.
dnl Copyright (c) 2004-2006 The University of Tennessee and The University
dnl of Tennessee Research Foundation. All rights
dnl reserved.
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 $COPYRIGHT$
dnl
dnl Additional copyrights may follow
dnl
dnl $HEADER$
dnl
# OMPI_SETUP_CC()
# ---------------
# Do everything required to setup the C compiler. Safe to AC_REQUIRE
# this macro.
AC_DEFUN([OMPI_SETUP_CC],[
# AM_PROG_CC_C_O AC_REQUIREs AC_PROG_CC, so we have to be a little
# careful about ordering here, and AC_REQUIRE these things so that
# they get stamped out in the right order.
AC_REQUIRE([_OMPI_START_SETUP_CC])
AC_REQUIRE([_OMPI_PROG_CC])
AC_REQUIRE([AM_PROG_CC_C_O])
OMPI_C_COMPILER_VENDOR([ompi_c_vendor])
# Do we want code coverage
if test "$WANT_COVERAGE" = "1"; then
if test "$ompi_c_vendor" = "gnu" ; then
CLEANFILES="*.bb *.bbg *.da *.*.gcov ${CLEANFILES}"
AC_MSG_WARN([-fprofile-arcs -ftest-coverage has been added to CFLAGS (--enable-coverage)])
WANT_DEBUG=1
CFLAGS="-ftest-coverage -fprofile-arcs ${CFLAGS}"
WRAPPER_EXTRA_CFLAGS="-ftest-coverage -fprofile-arcs ${WRAPPER_EXTRA_CFLAGS}"
else
AC_MSG_WARN([Code coverage functionality is currently available only with GCC])
AC_MSG_ERROR([Configure: Cannot continue])
fi
fi
# Do we want debugging?
if test "$WANT_DEBUG" = "1" -a "$enable_debug_symbols" != "no" ; then
if test "$ompi_c_vendor" = "gnu"; then
CFLAGS="$CFLAGS -g" # keep the -g3 for when it will become a standard option.
else
CFLAGS="$CFLAGS -g"
fi
OMPI_UNIQ(CFLAGS)
AC_MSG_WARN([-g has been added to CFLAGS (--enable-debug)])
fi
# These flags are generally gcc-specific; even the
# gcc-impersonating compilers won't accept them.
OMPI_CFLAGS_BEFORE_PICKY="$CFLAGS"
if test "$WANT_PICKY_COMPILER" = 1 -a "$ompi_c_vendor" = "gnu" ; then
add="-Wall -Wundef -Wno-long-long -Wsign-compare"
add="$add -Wmissing-prototypes -Wstrict-prototypes"
add="$add -Wcomment -pedantic"
# see if -Wno-long-double works...
CFLAGS_orig="$CFLAGS"
CFLAGS="$CFLAGS -Wno-long-double"
AC_CACHE_CHECK([if $CC supports -Wno-long-double],
[ompi_cv_cc_wno_long_double],
[AC_TRY_COMPILE([], [],
[ompi_cv_cc_wno_long_double="yes"],
[ompi_cv_cc_wno_long_double="no"])])
CFLAGS="$CFLAGS_orig"
if test "$ompi_cv_cc_wno_long_double" = "yes" ; then
add="$add -Wno-long-double"
fi
add="$add -Werror-implicit-function-declaration "
CFLAGS="$CFLAGS $add"
OMPI_UNIQ(CFLAGS)
AC_MSG_WARN([$add has been added to CFLAGS (--enable-picky)])
unset add
fi
# See if this version of gcc allows -finline-functions and/or
# -fno-strict-aliasing. Even check the gcc-impersonating compilers.
if test "$GCC" = "yes"; then
CFLAGS_orig="$CFLAGS"
CFLAGS="$CFLAGS_orig -finline-functions"
add=
AC_CACHE_CHECK([if $CC supports -finline-functions],
[ompi_cv_cc_finline_functions],
[AC_TRY_COMPILE([], [],
[ompi_cv_cc_finline_functions="yes"],
[ompi_cv_cc_finline_functions="no"])])
if test "$ompi_cv_cc_finline_functions" = "yes" ; then
add=" -finline-functions"
fi
CFLAGS="$CFLAGS_orig$add"
CFLAGS="$CFLAGS_orig -fno-strict-aliasing"
add=
AC_CACHE_CHECK([if $CC supports -fno-strict-aliasing],
[ompi_cv_cc_fno_strict_aliasing],
[AC_TRY_COMPILE([], [],
[ompi_cv_cc_fno_strict_aliasing="yes"],
[ompi_cv_cc_fno_strict_aliasing="no"])])
if test "$ompi_cv_cc_fno_strict_aliasing" = "yes" ; then
add=" -fno-strict-aliasing"
fi
CFLAGS="$CFLAGS_orig$add"
OMPI_UNIQ(CFLAGS)
AC_MSG_WARN([$add has been added to CFLAGS])
unset add
fi
# Try to enable restrict keyword
RESTRICT_CFLAGS=
case "$ompi_c_vendor" in
intel)
RESTRICT_CFLAGS="-restrict"
;;
sgi)
RESTRICT_CFLAGS="-LANG:restrict=ON"
;;
esac
if test ! -z "$RESTRICT_CFLAGS" ; then
CFLAGS_orig="$CFLAGS"
CFLAGS="$CFLAGS_orig $RESTRICT_CFLAGS"
add=
AC_CACHE_CHECK([if $CC supports $RESTRICT_CFLAGS],
[ompi_cv_cc_restrict_cflags],
[AC_TRY_COMPILE([], [],
[ompi_cv_cc_restrict_cflags="yes"],
[ompi_cv_cc_restrict_cflags="no"])])
if test "ompi_cv_cc_restruct_cflags" = "yes" ; then
add="$RESTRUCT_CFLAGS"
fi
CFLAGS="${CFLAGS_orig}${add}"
OMPI_UNIQ([CFLAGS])
if test "$add" != "" ; then
AC_MSG_WARN([$add has been added to CFLAGS])
fi
unset add
fi
# Preload the optflags for the case where the user didn't specify
# any. If we're using GNU compilers, use -O3 (since it GNU
# doesn't require all compilation units to be compiled with the
# same level of optimization -- selecting a high level of
# optimization is not prohibitive). If we're using anything else,
# be conservative and just use -O.
#
# Note: gcc-impersonating compilers accept -O3
if test "$WANT_DEBUG" = "1"; then
OPTFLAGS=
else
if test "$GCC" = yes; then
OPTFLAGS="-O3"
else
OPTFLAGS="-O"
fi
fi
OMPI_CHECK_OPTFLAGS("$OMPI_CFLAGS_BEFORE_PICKY")
OMPI_CFLAGS_BEFORE_PICKY="$co_result"
AC_MSG_CHECKING([for C optimization flags])
OMPI_CHECK_OPTFLAGS(["$CFLAGS"])
AC_MSG_RESULT([$co_result])
CFLAGS="$co_result"
])
AC_DEFUN([_OMPI_START_SETUP_CC],[
ompi_show_subtitle "C compiler and preprocessor"
# $%@#!@#% AIX!! This has to be called before anything invokes the C
# compiler.
dnl AC_AIX
])
AC_DEFUN([_OMPI_PROG_CC],[
#
# Check for the compiler
#
ompi_cflags_save="$CFLAGS"
AC_PROG_CC
BASECC="`basename $CC`"
CFLAGS="$ompi_cflags_save"
AC_DEFINE_UNQUOTED(OMPI_CC, "$CC", [OMPI underlying C compiler])
OMPI_CC_ABSOLUTE="`which $CC`"
AC_SUBST(OMPI_CC_ABSOLUTE)
])