1 # configure.ac for libdecnumber -*- Autoconf -*-
2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 2005, 2006, 2009 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 3, 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 COPYING3. If not see
20 # <http://www.gnu.org/licenses/>.
23 AC_INIT(libdecnumber, [ ], gcc-bugs@gcc.gnu.org, libdecnumber)
24 AC_CONFIG_SRCDIR(decNumber.h)
25 AC_CONFIG_MACRO_DIR(../config)
27 # Checks for programs.
32 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
33 AC_CHECK_PROGS([ACLOCAL], [aclocal], [$MISSING aclocal])
34 AC_CHECK_PROGS([AUTOCONF], [autoconf], [$MISSING autoconf])
35 AC_CHECK_PROGS([AUTOHEADER], [autoheader], [$MISSING autoheader])
37 # Figure out what compiler warnings we can enable.
38 # See config/warnings.m4 for details.
40 ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wstrict-prototypes \
41 -Wmissing-prototypes -Wold-style-definition \
42 -Wmissing-format-attribute -Wcast-qual])
43 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long])
45 # Only enable with --enable-werror-always until existing warnings are
47 ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual])
49 # Checks for header files.
50 AC_CHECK_HEADERS(ctype.h stddef.h string.h stdio.h)
51 GCC_HEADER_STDINT(gstdint.h)
53 # Checks for typedefs, structures, and compiler characteristics.
59 # Checks for library functions.
62 AC_ARG_ENABLE(maintainer-mode,
63 [ --enable-maintainer-mode enable rules only needed by maintainers],,
64 enable_maintainer_mode=no)
66 if test "x$enable_maintainer_mode" = xno; then
75 # Default decimal format
76 # If you change the defaults here, be sure to change them in the GCC directory also
77 AC_MSG_CHECKING([for decimal floating point])
78 AC_ARG_ENABLE(decimal-float,
79 [ --enable-decimal-float={no,yes,bid,dpd}
80 enable decimal float extension to C. Selecting 'bid'
81 or 'dpd' choses which decimal floating point format
84 case $enable_decimal_float in
85 yes | no | bid | dpd) ;;
86 *) AC_MSG_ERROR(['$enable_decimal_float' is an invalid value for --enable-decimal-float.
87 Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;;
92 powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux*)
93 enable_decimal_float=yes
96 enable_decimal_float=no
101 # x86's use BID format instead of DPD
102 # In theory --enable-decimal-float=no should not compile anything
103 # For the sake of simplicity, just use the default format in this directory
104 if test x$enable_decimal_float = xyes -o x$enable_decimal_float = xno; then
106 i?86*-*-linux* | x86_64*-*-linux*)
107 enable_decimal_float=bid
110 enable_decimal_float=dpd
115 # If BID is being used, additional objects should be linked in.
116 if test x$enable_decimal_float = xbid; then
117 ADDITIONAL_OBJS="$ADDITIONAL_OBJS \$(bid_OBJS)"
122 AC_MSG_RESULT($enable_decimal_float)
123 AC_SUBST(enable_decimal_float)
124 AC_SUBST(ADDITIONAL_OBJS)
130 AC_CONFIG_HEADERS(config.h:config.in, [echo timestamp > stamp-h1])
131 AC_CONFIG_FILES(Makefile)