1# configure.ac for libdecnumber			-*- Autoconf -*-
2# Process this file with autoconf to generate a configuration script.
3
4# Copyright (C) 2005-2016 Free Software Foundation, Inc.
5
6# This file is part of GCC.
7
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
11# later #version.
12
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.
17
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/>.
21
22AC_PREREQ(2.64)
23AC_INIT(libdecnumber, [ ], gcc-bugs@gcc.gnu.org, libdecnumber)
24AC_CONFIG_SRCDIR(decNumber.h)
25AC_CONFIG_MACRO_DIR(../config)
26AC_CONFIG_AUX_DIR(..)
27
28# Checks for programs.
29AC_PROG_MAKE_SET
30AC_PROG_CC
31AC_PROG_RANLIB
32
33MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
34AC_CHECK_PROGS([ACLOCAL], [aclocal], [$MISSING aclocal])
35AC_CHECK_PROGS([AUTOCONF], [autoconf], [$MISSING autoconf])
36AC_CHECK_PROGS([AUTOHEADER], [autoheader], [$MISSING autoheader])
37
38# Figure out what compiler warnings we can enable.
39# See config/warnings.m4 for details.
40
41ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wstrict-prototypes \
42			  -Wmissing-prototypes -Wold-style-definition \
43			  -Wmissing-format-attribute -Wcast-qual])
44ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long])
45
46# Only enable with --enable-werror-always until existing warnings are
47# corrected.
48ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual])
49
50# Checks for header files.
51AC_CHECK_HEADERS(ctype.h stddef.h string.h stdio.h)
52GCC_HEADER_STDINT(gstdint.h)
53
54# Checks for typedefs, structures, and compiler characteristics.
55AC_C_CONST
56AC_TYPE_OFF_T
57AC_CHECK_SIZEOF(int)
58AC_CHECK_SIZEOF(long)
59
60# Checks for library functions.
61AC_HEADER_STDC
62
63AC_ARG_ENABLE(maintainer-mode,
64[  --enable-maintainer-mode enable rules only needed by maintainers],,
65enable_maintainer_mode=no)
66
67if test "x$enable_maintainer_mode" = xno; then
68  MAINT='#'
69else
70  MAINT=
71fi
72AC_SUBST(MAINT)
73
74AC_CANONICAL_TARGET
75
76# Default decimal format
77# If you change the defaults here, be sure to change them in the GCC directory also
78AC_MSG_CHECKING([for decimal floating point])
79
80GCC_AC_ENABLE_DECIMAL_FLOAT([$target])
81
82# Use default_decimal_float for dependency.
83enable_decimal_float=$default_decimal_float
84
85# If BID is being used, additional objects should be linked in.
86if test x$enable_decimal_float = xbid; then
87  ADDITIONAL_OBJS="$ADDITIONAL_OBJS \$(bid_OBJS)"
88else
89  ADDITIONAL_OBJS=
90fi
91
92AC_MSG_RESULT($enable_decimal_float)
93AC_SUBST(enable_decimal_float)
94AC_SUBST(ADDITIONAL_OBJS)
95
96AC_C_BIGENDIAN
97
98# Enable --enable-host-shared.
99AC_ARG_ENABLE(host-shared,
100[AS_HELP_STRING([--enable-host-shared],
101		[build host code as shared libraries])],
102[PICFLAG=-fPIC], [PICFLAG=])
103AC_SUBST(PICFLAG)
104
105# Output.
106
107AC_CONFIG_HEADERS(config.h:config.in, [echo timestamp > stamp-h1])
108AC_CONFIG_FILES(Makefile)
109AC_OUTPUT
110