225 строки
7.0 KiB
Bash
225 строки
7.0 KiB
Bash
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) 2004-2005 The University of Tennessee and The University
|
|
dnl of Tennessee Research Foundation. All rights
|
|
dnl reserved.
|
|
dnl Copyright (c) 2004-2005 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
|
|
|
|
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 $CC`"
|
|
AC_SUBST(OMPI_CC_ABSOLUTE)
|
|
])
|
|
|
|
|
|
AC_DEFUN([_OMPI_PROG_CC_IMPERSONATE_GCC],[
|
|
# Check for compilers that impersonate gcc
|
|
AC_CACHE_CHECK([if compiler impersonates gcc],
|
|
[ompi_cv_prog_cc_impersonate_gcc],
|
|
[ompi_cv_prog_cc_impersonate_gcc="no"
|
|
if test "$GCC" = "yes" ; then
|
|
AC_TRY_COMPILE([], [
|
|
int i = 3;
|
|
#if __INTEL_COMPILER
|
|
#error Yes, I am lying about being gcc.
|
|
#endif
|
|
], [], [ompi_cv_prog_cc_impersonate_gcc="yes"])
|
|
fi])
|
|
|
|
if test "$GCC" = "yes" -a "$ompi_cv_prog_cc_impersonate_gcc" = "no" ; then
|
|
TRULY_GCC="yes"
|
|
else
|
|
TRULY_GCC="no"
|
|
fi
|
|
])
|
|
|
|
|
|
AC_DEFUN([OMPI_SETUP_CC],[
|
|
# Modularize this setup so that sub-configure.in scripts can use this
|
|
# same setup code.
|
|
|
|
# Order is important!
|
|
AC_REQUIRE([_OMPI_START_SETUP_CC])
|
|
AC_REQUIRE([_OMPI_PROG_CC])
|
|
AC_REQUIRE([AM_PROG_CC_C_O])
|
|
AC_REQUIRE([_OMPI_PROG_CC_IMPERSONATE_GCC])
|
|
|
|
# Do we want code coverage
|
|
if test "$WANT_COVERAGE" = "1"; then
|
|
if test "$TRULY_GCC" = "yes"; 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"; then
|
|
CFLAGS="$CFLAGS -g"
|
|
OMPI_UNIQ(CFLAGS)
|
|
AC_MSG_WARN([-g has been added to CFLAGS (--enable-debug)])
|
|
fi
|
|
|
|
# These flags are generally gcc-specific; even the gcc-impersonating
|
|
# compilers won't accept them.
|
|
|
|
OMPI_CFLAGS_BEFORE_PICKY="$CFLAGS"
|
|
if test "$TRULY_GCC" = "yes" -a "$WANT_PICKY_COMPILER" = 1; 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([$add has been added to CFLAGS])
|
|
unset add
|
|
fi
|
|
|
|
# Try to enable restrict keyword
|
|
RESTRICT_CFLAGS=
|
|
case "${host}" in
|
|
ia64-unknown-linux*)
|
|
if test "$CC" = "ecc" ; then
|
|
RESTRICT_CFLAGS="-restrict"
|
|
fi
|
|
;;
|
|
mips-sgi-irix*)
|
|
if test "$CC" = "cc" ; then
|
|
RESTRICT_CFLAGS="-LANG:restrict=ON"
|
|
fi
|
|
;;
|
|
i?86-pc-linux*)
|
|
if test "$CC" = "icc" ; then
|
|
RESTRICT_CFLAGS="-restrict"
|
|
fi
|
|
;;
|
|
esac
|
|
if test ! -z "$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-imperonating compilers accept -O3, so there's no need for
|
|
# $TRULY_GCC here.
|
|
|
|
if test "$GCC" = yes; then
|
|
OPTFLAGS="-O3"
|
|
else
|
|
OPTFLAGS="-O"
|
|
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"])
|