libdecnumber/configure.ac

   1 # configure.ac for libdecnumber                 -*- Autoconf -*-
   2 # Process this file with autoconf to generate a configuration script.
   3
   4 # Copyright (C) 2005-2022 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
  22 AC_INIT(libdecnumber, [ ], gcc-bugs@gcc.gnu.org, libdecnumber)
  23 AC_CONFIG_SRCDIR(decNumber.h)
  24 AC_CONFIG_MACRO_DIR(../config)
  25 AC_CONFIG_AUX_DIR(..)
  26
  27 # Checks for programs.
  28 AC_PROG_MAKE_SET
  29 AC_PROG_CC
  30 AC_PROG_RANLIB
  31 AC_CHECK_TOOL(AR, ar)
  32
  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])
  37
  38 # Figure out what compiler warnings we can enable.
  39 # See config/warnings.m4 for details.
  40
  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])
  45
  46 ACX_PROG_CC_WARNING_OPTS([-fno-lto], [nolto_flags])
  47
  48 # Only enable with --enable-werror-always until existing warnings are
  49 # corrected.
  50 ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual])
  51
  52 # Checks for header files.
  53 AC_CHECK_HEADERS(ctype.h stddef.h string.h stdio.h)
  54 GCC_HEADER_STDINT(gstdint.h)
  55
  56 # Checks for typedefs, structures, and compiler characteristics.
  57 AC_C_CONST
  58 AC_TYPE_OFF_T
  59 AC_CHECK_SIZEOF(int)
  60 AC_CHECK_SIZEOF(long)
  61
  62 # Checks for library functions.
  63 AC_HEADER_STDC
  64
  65 AC_ARG_ENABLE(maintainer-mode,
  66 [  --enable-maintainer-mode enable rules only needed by maintainers],,
  67 enable_maintainer_mode=no)
  68
  69 if test "x$enable_maintainer_mode" = xno; then
  70   MAINT='#'
  71 else
  72   MAINT=
  73 fi
  74 AC_SUBST(MAINT)
  75
  76 AC_CANONICAL_TARGET
  77
  78 # Default decimal format
  79 # If you change the defaults here, be sure to change them in the GCC directory also
  80 AC_MSG_CHECKING([for decimal floating point])
  81
  82 GCC_AC_ENABLE_DECIMAL_FLOAT([$target])
  83
  84 # Use default_decimal_float for dependency.
  85 enable_decimal_float=$default_decimal_float
  86
  87 # If BID is being used, additional objects should be linked in.
  88 if test x$enable_decimal_float = xbid; then
  89   ADDITIONAL_OBJS="$ADDITIONAL_OBJS \$(bid_OBJS)"
  90 else
  91   ADDITIONAL_OBJS=
  92 fi
  93
  94 AC_MSG_RESULT($enable_decimal_float)
  95 AC_SUBST(enable_decimal_float)
  96 AC_SUBST(ADDITIONAL_OBJS)
  97
  98 AC_C_BIGENDIAN
  99
 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)
 105
 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)
 111
 112 if test x$enable_host_shared = xyes; then
 113   PICFLAG=-fPIC
 114 elif test x$enable_host_pie = xyes; then
 115   PICFLAG=-fPIE
 116 else
 117   PICFLAG=
 118 fi
 119
 120 AC_SUBST(PICFLAG)
 121
 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
 125 *jit*)
 126   ;;
 127 *)
 128   CET_HOST_FLAGS=
 129   ;;
 130 esac
 131 AC_SUBST(CET_HOST_FLAGS)
 132
 133
 134 # Output.
 135
 136 AC_CONFIG_HEADERS(config.h:config.in, [echo timestamp > stamp-h1])
 137 AC_CONFIG_FILES(Makefile)
 138 AC_OUTPUT