1 # configure.ac for libdecnumber -*- Autoconf -*-
2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 2005, 2006 Free Software Foundation, Inc.
6 # This file is part of GCC.
8 # GCC is free software; you can redistribute it and/or modify it under
9 # the terms of the GNU General Public License as published by the Free
10 # Software Foundation; either version 2, or (at your option) any
13 # GCC is distributed in the hope that it will be useful, but WITHOUT
14 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
16 # License #for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with GCC; see the file COPYING. If not, write to the Free
20 # Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
24 AC_INIT(libdecnumber, [ ], gcc-bugs@gcc.gnu.org, libdecnumber)
25 AC_CONFIG_SRCDIR(decNumber.h)
26 AC_CONFIG_MACRO_DIR(../config)
28 # Checks for programs.
33 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
34 AC_CHECK_PROGS([ACLOCAL], [aclocal], [$MISSING aclocal])
35 AC_CHECK_PROGS([AUTOCONF], [autoconf], [$MISSING autoconf])
36 AC_CHECK_PROGS([AUTOHEADER], [autoheader], [$MISSING autoheader])
38 # Figure out what compiler warnings we can enable.
39 # See config/warnings.m4 for details.
41 ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wstrict-prototypes \
42 -Wmissing-prototypes -Wold-style-definition \
43 -Wmissing-format-attribute -Wcast-qual])
44 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long])
46 # Only enable with --enable-werror-always until existing warnings are
48 ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual])
50 # Checks for header files.
51 AC_CHECK_HEADERS(ctype.h stddef.h string.h stdio.h)
52 GCC_HEADER_STDINT(gstdint.h)
54 # Checks for typedefs, structures, and compiler characteristics.
60 # Checks for library functions.
63 AC_ARG_ENABLE(maintainer-mode,
64 [ --enable-maintainer-mode enable rules only needed by maintainers],,
65 enable_maintainer_mode=no)
67 if test "x$enable_maintainer_mode" = xno; then
76 # Default decimal format
77 # If you change the defaults here, be sure to change them in the GCC directory also
78 AC_MSG_CHECKING([for decimal floating point])
79 AC_ARG_ENABLE(decimal-float,
80 [ --enable-decimal-float={no,yes,bid,dpd}
81 enable decimal float extension to C. Selecting 'bid'
82 or 'dpd' choses which decimal floating point format
85 case $enable_decimal_float in
86 yes | no | bid | dpd) ;;
87 *) AC_MSG_ERROR(['$enable_decimal_float' is an invalid value for --enable-decimal-float.
88 Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;;
93 powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux*)
94 enable_decimal_float=yes
97 enable_decimal_float=no
102 # x86's use BID format instead of DPD
103 # In theory --enable-decimal-float=no should not compile anything
104 # For the sake of simplicity, just use the default format in this directory
105 if test x$enable_decimal_float = xyes -o x$enable_decimal_float = xno; then
107 i?86*-*-linux* | x86_64*-*-linux*)
108 enable_decimal_float=bid
111 enable_decimal_float=dpd
116 # If BID is being used, additional objects should be linked in.
117 if test x$enable_decimal_float = xbid; then
118 ADDITIONAL_OBJS="$ADDITIONAL_OBJS \$(bid_OBJS)"
123 AC_MSG_RESULT($enable_decimal_float)
124 AC_SUBST(enable_decimal_float)
125 AC_SUBST(ADDITIONAL_OBJS)
131 AC_CONFIG_HEADERS(config.h:config.in, [echo timestamp > stamp-h1])
132 AC_CONFIG_FILES(Makefile)