1# configure.ac for libdecnumber			-*- Autoconf -*-
2# Process this file with autoconf to generate a configuration script.
3
4# Copyright (C) 2005-2018 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
46ACX_PROG_CC_WARNING_OPTS([-fno-lto], [nolto_flags])
47
48# Only enable with --enable-werror-always until existing warnings are
49# corrected.
50ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual])
51
52# Checks for header files.
53AC_CHECK_HEADERS(ctype.h stddef.h string.h stdio.h)
54GCC_HEADER_STDINT(gstdint.h)
55
56# Checks for typedefs, structures, and compiler characteristics.
57AC_C_CONST
58AC_TYPE_OFF_T
59AC_CHECK_SIZEOF(int)
60AC_CHECK_SIZEOF(long)
61
62# Checks for library functions.
63AC_HEADER_STDC
64
65AC_ARG_ENABLE(maintainer-mode,
66[  --enable-maintainer-mode enable rules only needed by maintainers],,
67enable_maintainer_mode=no)
68
69if test "x$enable_maintainer_mode" = xno; then
70  MAINT='#'
71else
72  MAINT=
73fi
74AC_SUBST(MAINT)
75
76AC_CANONICAL_TARGET
77
78# Default decimal format
79# If you change the defaults here, be sure to change them in the GCC directory also
80AC_MSG_CHECKING([for decimal floating point])
81
82GCC_AC_ENABLE_DECIMAL_FLOAT([$target])
83
84# Use default_decimal_float for dependency.
85enable_decimal_float=$default_decimal_float
86
87# If BID is being used, additional objects should be linked in.
88if test x$enable_decimal_float = xbid; then
89  ADDITIONAL_OBJS="$ADDITIONAL_OBJS \$(bid_OBJS)"
90else
91  ADDITIONAL_OBJS=
92fi
93
94AC_MSG_RESULT($enable_decimal_float)
95AC_SUBST(enable_decimal_float)
96AC_SUBST(ADDITIONAL_OBJS)
97
98AC_C_BIGENDIAN
99
100# Enable --enable-host-shared.
101AC_ARG_ENABLE(host-shared,
102[AS_HELP_STRING([--enable-host-shared],
103		[build host code as shared libraries])],
104[PICFLAG=-fPIC], [PICFLAG=])
105AC_SUBST(PICFLAG)
106
107# Output.
108
109AC_CONFIG_HEADERS(config.h:config.in, [echo timestamp > stamp-h1])
110AC_CONFIG_FILES(Makefile)
111AC_OUTPUT
112