configure.ac revision 1.1.1.7
1# configure.ac for libdecnumber -*- Autoconf -*- 2# Process this file with autoconf to generate a configuration script. 3 4# Copyright (C) 2005-2017 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