1# configure.ac for libdecnumber -*- Autoconf -*- 2# Process this file with autoconf to generate a configuration script. 3 4# Copyright (C) 2005-2020 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_INIT(libdecnumber, [ ], gcc-bugs@gcc.gnu.org, libdecnumber) 23AC_CONFIG_SRCDIR(decNumber.h) 24AC_CONFIG_MACRO_DIR(../config) 25AC_CONFIG_AUX_DIR(..) 26 27# Checks for programs. 28AC_PROG_MAKE_SET 29AC_PROG_CC 30AC_PROG_RANLIB 31 32MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing 33AC_CHECK_PROGS([ACLOCAL], [aclocal], [$MISSING aclocal]) 34AC_CHECK_PROGS([AUTOCONF], [autoconf], [$MISSING autoconf]) 35AC_CHECK_PROGS([AUTOHEADER], [autoheader], [$MISSING autoheader]) 36 37# Figure out what compiler warnings we can enable. 38# See config/warnings.m4 for details. 39 40ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wstrict-prototypes \ 41 -Wmissing-prototypes -Wold-style-definition \ 42 -Wmissing-format-attribute -Wcast-qual]) 43ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long]) 44 45ACX_PROG_CC_WARNING_OPTS([-fno-lto], [nolto_flags]) 46 47# Only enable with --enable-werror-always until existing warnings are 48# corrected. 49ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual]) 50 51# Checks for header files. 52AC_CHECK_HEADERS(ctype.h stddef.h string.h stdio.h) 53GCC_HEADER_STDINT(gstdint.h) 54 55# Checks for typedefs, structures, and compiler characteristics. 56AC_C_CONST 57AC_TYPE_OFF_T 58AC_CHECK_SIZEOF(int) 59AC_CHECK_SIZEOF(long) 60 61# Checks for library functions. 62AC_HEADER_STDC 63 64AC_ARG_ENABLE(maintainer-mode, 65[ --enable-maintainer-mode enable rules only needed by maintainers],, 66enable_maintainer_mode=no) 67 68if test "x$enable_maintainer_mode" = xno; then 69 MAINT='#' 70else 71 MAINT= 72fi 73AC_SUBST(MAINT) 74 75AC_CANONICAL_TARGET 76 77# Default decimal format 78# If you change the defaults here, be sure to change them in the GCC directory also 79AC_MSG_CHECKING([for decimal floating point]) 80 81GCC_AC_ENABLE_DECIMAL_FLOAT([$target]) 82 83# Use default_decimal_float for dependency. 84enable_decimal_float=$default_decimal_float 85 86# If BID is being used, additional objects should be linked in. 87if test x$enable_decimal_float = xbid; then 88 ADDITIONAL_OBJS="$ADDITIONAL_OBJS \$(bid_OBJS)" 89else 90 ADDITIONAL_OBJS= 91fi 92 93AC_MSG_RESULT($enable_decimal_float) 94AC_SUBST(enable_decimal_float) 95AC_SUBST(ADDITIONAL_OBJS) 96 97AC_C_BIGENDIAN 98 99# Enable --enable-host-shared. 100AC_ARG_ENABLE(host-shared, 101[AS_HELP_STRING([--enable-host-shared], 102 [build host code as shared libraries])], 103[PICFLAG=-fPIC], [PICFLAG=]) 104AC_SUBST(PICFLAG) 105 106# Output. 107 108AC_CONFIG_HEADERS(config.h:config.in, [echo timestamp > stamp-h1]) 109AC_CONFIG_FILES(Makefile) 110AC_OUTPUT 111