1 # configure.ac for libdecnumber -*- Autoconf -*-
2 # Process this file with autoconf to generate a configuration script.
4 # Copyright (C) 2005-2023 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/>.
22 AC_INIT(libdecnumber, [ ], gcc-bugs@gcc.gnu.org, libdecnumber)
23 AC_CONFIG_SRCDIR(decNumber.h)
24 AC_CONFIG_MACRO_DIR(../config)
27 # 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 ACX_PROG_CC_WARNING_OPTS([-fno-lto], [nolto_flags])
48 # Only enable with --enable-werror-always until existing warnings are
50 ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual])
52 # Checks for header files.
53 AC_CHECK_HEADERS(ctype.h stddef.h string.h stdio.h)
54 GCC_HEADER_STDINT(gstdint.h)
56 # Checks for typedefs, structures, and compiler characteristics.
62 # Checks for library functions.
65 AC_ARG_ENABLE(maintainer-mode,
66 [ --enable-maintainer-mode enable rules only needed by maintainers],,
67 enable_maintainer_mode=no)
69 if test "x$enable_maintainer_mode" = xno; then
78 # Default decimal format
79 # If you change the defaults here, be sure to change them in the GCC directory also
80 AC_MSG_CHECKING([for decimal floating point])
82 GCC_AC_ENABLE_DECIMAL_FLOAT([$target])
84 # Use default_decimal_float for dependency.
85 enable_decimal_float=$default_decimal_float
87 # If BID is being used, additional objects should be linked in.
88 if test x$enable_decimal_float = xbid; then
89 ADDITIONAL_OBJS="$ADDITIONAL_OBJS \$(bid_OBJS)"
94 AC_MSG_RESULT($enable_decimal_float)
95 AC_SUBST(enable_decimal_float)
96 AC_SUBST(ADDITIONAL_OBJS)
100 # Enable --enable-host-shared.
101 AC_ARG_ENABLE(host-shared,
102 [AS_HELP_STRING([--enable-host-shared],
103 [build host code as shared libraries])])
104 AC_SUBST(enable_host_shared)
106 # Enable --enable-host-pie.
107 AC_ARG_ENABLE(host-pie,
108 [AS_HELP_STRING([--enable-host-pie],
109 [build host code as PIE])])
110 AC_SUBST(enable_host_pie)
112 if test x$enable_host_shared = xyes; then
114 elif test x$enable_host_pie = xyes; then
122 # Enable Intel CET on Intel CET enabled host if jit is enabled.
123 GCC_CET_HOST_FLAGS(CET_HOST_FLAGS)
124 case x$enable_languages in
131 AC_SUBST(CET_HOST_FLAGS)
136 AC_CONFIG_HEADERS(config.h:config.in, [echo timestamp > stamp-h1])
137 AC_CONFIG_FILES(Makefile)