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1 # Process this file with autoconf to produce a configure script.
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2 # Copyright (C) 2006-2020 Free Software Foundation, Inc.
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3 #
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4 # GCC is free software; you can redistribute it and/or modify
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5 # it under the terms of the GNU General Public License as published by
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6 # the Free Software Foundation; either version 3, or (at your option)
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7 # any later version.
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8 #
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9 # GCC is distributed in the hope that it will be useful,
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10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 # GNU General Public License for more details.
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13 #
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14 # You should have received a copy of the GNU General Public License
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15 # along with GCC; see the file COPYING3. If not see
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16 # <http://www.gnu.org/licenses/>.
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17
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18 # This requires that you have your environment set-up to use explicit
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19 # versions of automake and autoconf.
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20 #
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21 # export ACLOCAL=/usr/bin/aclocal-1.15
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22 # export AUTOMAKE=/usr/bin/automake-1.15
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23 # export AUTOM4TE=/usr/bin/autom4te2.69
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24 # export AUTOCONF=/usr/bin/autoconf2.69
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25 #
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26 # autoreconf2.69
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27 #
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28
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29 AC_INIT(package-unused, version-unused,, libphobos)
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30 AC_CONFIG_SRCDIR(libdruntime/gcc/attribute.d)
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31 AC_CONFIG_HEADERS(config.h)
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32
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33 AM_ENABLE_MULTILIB(, ..)
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34 AC_CANONICAL_SYSTEM
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35 AC_USE_SYSTEM_EXTENSIONS
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36
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37 target_alias=${target_alias-$target}
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38 AC_SUBST(target_alias)
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39
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40 # 1.11.1: Require that version of automake.
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41 # foreign: Don't require README, INSTALL, NEWS, etc.
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42 # no-define: Don't define PACKAGE and VERSION.
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43 # no-dependencies: Don't generate automatic dependencies.
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44 # (because it breaks when using bootstrap-lean, since some of the
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45 # headers are gone at "make install" time).
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46 # subdir-objects: Build objects in sub-directories.
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47 # -Wall: Issue all automake warnings.
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48 # -Wno-portability: Don't warn about constructs supported by GNU make.
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49 # (because GCC requires GNU make anyhow).
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50 # -Wno-override: Overrides used in testsuite.
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51 AM_INIT_AUTOMAKE([1.11.1 foreign no-dist no-define no-dependencies subdir-objects -Wall -Wno-portability -Wno-override])
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52
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53 m4_rename([_AC_ARG_VAR_PRECIOUS],[glibd_PRECIOUS])
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54 m4_define([_AC_ARG_VAR_PRECIOUS],[])
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55 AM_PROG_AS
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56 AC_PROG_CC
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57 AC_PROG_GDC
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58 WITH_LOCAL_DRUNTIME([GDC_CHECK_COMPILE], [])
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59
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60 m4_rename_force([glibd_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
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61
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62 AC_SUBST(CFLAGS)
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63 AM_MAINTAINER_MODE
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64 AC_PROG_RANLIB
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65 AC_PROG_INSTALL
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66 AC_PROG_MAKE_SET
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67
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68 # This should be inherited in the recursive make, but ensure it is defined.
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69 test "$AR" || AR=ar
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70 AC_SUBST(AR)
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71
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72 CC_FOR_BUILD=${CC_FOR_BUILD:-gcc}
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73 AC_SUBST(CC_FOR_BUILD)
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74 AC_SUBST(CFLAGS_FOR_BUILD)
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75
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76 # Enable libtool
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77 LT_INIT(dlopen)
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78 AM_PROG_LIBTOOL
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79 WITH_LOCAL_DRUNTIME([LT_LANG([D])], [])
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80
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81 # libtool variables for Phobos shared and position-independent compiles.
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82 #
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83 # Use phobos_compiler_shared_flag to designate the compile-time flags for
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84 # creating shared objects. Default: -fversion=Shared.
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85 #
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86 # Use phobos_compiler_pic_flag to designate the compile-time flags for
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87 # creating position-independent objects. This varies with the target
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88 # hardware and operating system, but is often: -fPIC.
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89 #
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90 # The distinction between pic and shared compilation flags is not present in
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91 # libtool, and so we make it here. How it is handled is that in shared
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92 # compilations the `lt_prog_compiler_pic_D' variable is used to instead
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93 # ensure that conditional compilation of shared runtime code is compiled in.
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94 # The original PIC flags are then used in the compilation of every object.
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95 #
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96 # Why are objects destined for libgphobos.a compiled with -fPIC?
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97 # Because -fPIC is not harmful to use for objects destined for static
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98 # libraries. In addition, using -fPIC will allow the use of static
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99 # libgphobos.a in the creation of other D shared libraries.
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100 if test "$enable_shared" = yes; then
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101 phobos_compiler_pic_flag="$lt_prog_compiler_pic_D"
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102 phobos_compiler_shared_flag="-fversion=Shared"
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103 else
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104 phobos_compiler_pic_flag=
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105 phobos_compiler_shared_flag=
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106 fi
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107 AC_SUBST(phobos_compiler_pic_flag)
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108 AC_SUBST(phobos_compiler_shared_flag)
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109
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110 # Override the libtool's pic_flag and pic_mode.
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111 # Do this step after AM_PROG_LIBTOOL, but before AC_OUTPUT.
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112 # NB: this impacts --with-pic and --without-pic.
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113 lt_prog_compiler_pic_D="$phobos_compiler_shared_flag"
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114 pic_mode='default'
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115
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116 # Determine what GCC version number to use in filesystem paths.
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117 GCC_BASE_VER
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118
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119 # libphobos/libdruntime specific options and feature detection
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120 DRUNTIME_CONFIGURE
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121 DRUNTIME_MULTILIB
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122 DRUNTIME_WERROR
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123 DRUNTIME_GC
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124 DRUNTIME_CPU_SOURCES
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125 DRUNTIME_OS_UNIX
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126 DRUNTIME_OS_SOURCES
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127 DRUNTIME_OS_THREAD_MODEL
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128 DRUNTIME_OS_ARM_EABI_UNWINDER
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129 DRUNTIME_OS_MINFO_BRACKETING
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130 DRUNTIME_OS_DLPI_TLS_MODID
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131 DRUNTIME_OS_LINK_SPEC
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132 DRUNTIME_LIBRARIES_CLIB
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133
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134 WITH_LOCAL_DRUNTIME([
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135 AC_LANG_PUSH([D])
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136 AC_SEARCH_LIBS([malloc], [c])
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137 DRUNTIME_LIBRARIES_THREAD
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138 AC_SEARCH_LIBS([cosf], [m])
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139 AC_SEARCH_LIBS([clock_gettime], [rt])
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140 DRUNTIME_ENABLE_ATOMIC_BUILTINS
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141 AC_LANG_POP([D])
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142 ], [-nophoboslib])
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143
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144 DRUNTIME_LIBRARIES_ATOMIC
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145 DRUNTIME_LIBRARIES_BACKTRACE
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146 DRUNTIME_LIBRARIES_DLOPEN
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147 DRUNTIME_LIBRARIES_NET
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148 DRUNTIME_LIBRARIES_ZLIB
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149 DRUNTIME_INSTALL_DIRECTORIES
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150
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151 AC_MSG_CHECKING([for --enable-libphobos])
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152 AC_ARG_ENABLE(libphobos,
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153 [AS_HELP_STRING([--enable-libphobos], [Enable libphobos])])
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154 AC_MSG_RESULT($enable_libphobos)
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155
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156 # See if supported.
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157 unset LIBPHOBOS_SUPPORTED
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158 AC_MSG_CHECKING([for host support for libphobos])
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159 . ${srcdir}/configure.tgt
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160 case ${host} in
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161 x86_64-*-solaris2.* | i?86-*-solaris2.*)
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162 # libphobos doesn't compile with the Solaris/x86 assembler due to a
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163 # relatively low linelength limit.
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164 as_prog=`$CC -print-prog-name=as`
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165 if test -n "$as_prog" && $as_prog -v /dev/null 2>&1 | grep GNU > /dev/null 2>&1; then
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166 druntime_cv_use_gas=yes;
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167 else
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168 druntime_cv_use_gas=no;
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169 fi
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170 rm -f a.out
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171 if test x$druntime_cv_use_gas = xno; then
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172 LIBPHOBOS_SUPPORTED=no
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173 fi
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174 # 64-bit D execution fails with Solaris ld without -z relax=transtls support.
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175 if test "$druntime_ld_gld" = "no" && test "$druntime_ld_relax_transtls" = "no"; then
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176 LIBPHOBOS_SUPPORTED=no
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177 fi
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178 ;;
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179 esac
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180 AC_MSG_RESULT($LIBPHOBOS_SUPPORTED)
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181
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182 # Decide if it's usable.
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183 case $LIBPHOBOS_SUPPORTED:$enable_libphobos in
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184 *:no) use_libphobos=no ;;
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185 *:yes) use_libphobos=yes ;;
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186 yes:*) use_libphobos=yes ;;
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187 *:*) use_libphobos=no ;;
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188 esac
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189 AM_CONDITIONAL(ENABLE_LIBPHOBOS, test x$use_libphobos = xyes)
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190
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191 # Add drtbegin.o/drtend.o to startfile/endfile specs in libgphobos.spec
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192 if test "$DCFG_MINFO_BRACKETING" = "false"; then
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193 DRTSTUFF_SPEC=$srcdir/src/drtstuff.spec
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194 else
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195 DRTSTUFF_SPEC=/dev/null
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196 fi
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197 AC_SUBST_FILE(DRTSTUFF_SPEC)
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198
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199 # Add dependencies for libgphobos.spec file
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200 SPEC_PHOBOS_DEPS="$LIBS"
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201 AC_SUBST(SPEC_PHOBOS_DEPS)
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202
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203 # Libdruntime / phobos soname version
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204 libtool_VERSION=76:3:0
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205 AC_SUBST(libtool_VERSION)
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206
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207 # Set default flags (after DRUNTIME_WERROR!)
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208 if test -z "$GDCFLAGS"; then
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209 GDCFLAGS="-Wall $WERROR_FLAG -g -frelease -O2"
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210 fi
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211 AC_SUBST(GDCFLAGS)
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212
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213 if test -z "$GDCFLAGSX"; then
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214 GDCFLAGSX="-Wall $WERROR_FLAG -g -fno-release -funittest"
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215 fi
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216 AC_SUBST(GDCFLAGSX)
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217
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218 # Sanity check for the cross-compilation case:
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219 AC_CHECK_HEADER(stdio.h,:,
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220 [AC_MSG_ERROR([cannot find stdio.h.])])
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221
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222 AC_CONFIG_FILES(Makefile)
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223
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224 AC_CONFIG_FILES(libdruntime/gcc/config.d libdruntime/gcc/libbacktrace.d)
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225 AC_CONFIG_FILES(src/libgphobos.spec)
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226 AC_CONFIG_FILES([testsuite/testsuite_flags],[chmod +x testsuite/testsuite_flags])
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227
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228 # Multilibs need MULTISUBDIR defined correctly in certain makefiles so
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229 # that multilib installs will end up installed in the correct place.
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230 # The testsuite needs it for multilib-aware ABI baseline files.
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231 # To work around this not being passed down from config-ml.in ->
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232 # srcdir/Makefile.am -> srcdir/{src,libdruntime,...}/Makefile.am, manually
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233 # append it here. Only modify Makefiles that have just been created.
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234 #
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235 # Also, get rid of this simulated-VPATH thing that automake does.
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236 AC_CONFIG_FILES(AC_FOREACH([DIR], [libdruntime src testsuite], [DIR/Makefile ]),
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237 [cat > vpsed$$ << \_EOF
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238 s!`test -f '$<' || echo '$(srcdir)/'`!!
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239 _EOF
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240 sed -f vpsed$$ $ac_file > tmp$$
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241 mv tmp$$ $ac_file
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242 rm vpsed$$
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243 echo 'MULTISUBDIR =' >> $ac_file
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244 ml_norecursion=yes
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245 . ${multi_basedir}/config-ml.in
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246 AS_UNSET([ml_norecursion])
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247 ])
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248
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249 AC_OUTPUT
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