# configure.ac for libdecnumber -*- Autoconf -*- # Process this file with autoconf to generate a configuration script. # Copyright 2005, 2006, 2009 Free Software Foundation, Inc. # This file is part of GCC. # GCC is free software; you can redistribute it and/or modify it under # the terms of the GNU General Public License as published by the Free # Software Foundation; either version 3, or (at your option) any # later #version. # GCC is distributed in the hope that it will be useful, but WITHOUT # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public # License #for more details. # You should have received a copy of the GNU General Public License # along with GCC; see the file COPYING3. If not see # . AC_PREREQ(2.64) AC_INIT(libdecnumber, [ ], gcc-bugs@gcc.gnu.org, libdecnumber) AC_CONFIG_SRCDIR(decNumber.h) AC_CONFIG_MACRO_DIR(../config) # Checks for programs. AC_PROG_MAKE_SET AC_PROG_CC AC_PROG_RANLIB MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing AC_CHECK_PROGS([ACLOCAL], [aclocal], [$MISSING aclocal]) AC_CHECK_PROGS([AUTOCONF], [autoconf], [$MISSING autoconf]) AC_CHECK_PROGS([AUTOHEADER], [autoheader], [$MISSING autoheader]) # Figure out what compiler warnings we can enable. # See config/warnings.m4 for details. ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wstrict-prototypes \ -Wmissing-prototypes -Wold-style-definition \ -Wmissing-format-attribute -Wcast-qual]) ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long]) # Only enable with --enable-werror-always until existing warnings are # corrected. ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual]) # Checks for header files. AC_CHECK_HEADERS(ctype.h stddef.h string.h stdio.h) GCC_HEADER_STDINT(gstdint.h) # Checks for typedefs, structures, and compiler characteristics. AC_C_CONST AC_TYPE_OFF_T AC_CHECK_SIZEOF(int) AC_CHECK_SIZEOF(long) # Checks for library functions. AC_HEADER_STDC AC_ARG_ENABLE(maintainer-mode, [ --enable-maintainer-mode enable rules only needed by maintainers],, enable_maintainer_mode=no) if test "x$enable_maintainer_mode" = xno; then MAINT='#' else MAINT= fi AC_SUBST(MAINT) AC_CANONICAL_TARGET # Default decimal format # If you change the defaults here, be sure to change them in the GCC directory also AC_MSG_CHECKING([for decimal floating point]) AC_ARG_ENABLE(decimal-float, [ --enable-decimal-float={no,yes,bid,dpd} enable decimal float extension to C. Selecting 'bid' or 'dpd' choses which decimal floating point format to use], [ case $enable_decimal_float in yes | no | bid | dpd) ;; *) AC_MSG_ERROR(['$enable_decimal_float' is an invalid value for --enable-decimal-float. Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;; esac ], [ case $target in powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux*) enable_decimal_float=yes ;; *) enable_decimal_float=no ;; esac ]) # x86's use BID format instead of DPD # In theory --enable-decimal-float=no should not compile anything # For the sake of simplicity, just use the default format in this directory if test x$enable_decimal_float = xyes -o x$enable_decimal_float = xno; then case $target in i?86*-*-linux* | x86_64*-*-linux*) enable_decimal_float=bid ;; *) enable_decimal_float=dpd ;; esac fi # If BID is being used, additional objects should be linked in. if test x$enable_decimal_float = xbid; then ADDITIONAL_OBJS="$ADDITIONAL_OBJS \$(bid_OBJS)" else ADDITIONAL_OBJS= fi AC_MSG_RESULT($enable_decimal_float) AC_SUBST(enable_decimal_float) AC_SUBST(ADDITIONAL_OBJS) AC_C_BIGENDIAN # Output. AC_CONFIG_HEADERS(config.h:config.in, [echo timestamp > stamp-h1]) AC_CONFIG_FILES(Makefile) AC_OUTPUT