libphobos/configure.ac

   1 # Process this file with autoconf to produce a configure script.
   2 # Copyright (C) 2006-2020 Free Software Foundation, Inc.
   3 #
   4 # GCC is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 3, or (at your option)
   7 # any later version.
   8 #
   9 # GCC is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with GCC; see the file COPYING3.  If not see
  16 # <http://www.gnu.org/licenses/>.
  17
  18 # This requires that you have your environment set-up to use explicit
  19 # versions of automake and autoconf.
  20 #
  21 #    export ACLOCAL=/usr/bin/aclocal-1.15
  22 #    export AUTOMAKE=/usr/bin/automake-1.15
  23 #    export AUTOM4TE=/usr/bin/autom4te2.69
  24 #    export AUTOCONF=/usr/bin/autoconf2.69
  25 #
  26 #    autoreconf2.69
  27 #
  28
  29 AC_INIT(package-unused, version-unused,, libphobos)
  30 AC_CONFIG_SRCDIR(libdruntime/gcc/attribute.d)
  31 AC_CONFIG_HEADERS(config.h)
  32
  33 AM_ENABLE_MULTILIB(, ..)
  34 AC_CANONICAL_SYSTEM
  35 AC_USE_SYSTEM_EXTENSIONS
  36
  37 target_alias=${target_alias-$target}
  38 AC_SUBST(target_alias)
  39
  40 # 1.11.1: Require that version of automake.
  41 # foreign: Don't require README, INSTALL, NEWS, etc.
  42 # no-define: Don't define PACKAGE and VERSION.
  43 # no-dependencies: Don't generate automatic dependencies.
  44 #    (because it breaks when using bootstrap-lean, since some of the
  45 #    headers are gone at "make install" time).
  46 # subdir-objects: Build objects in sub-directories.
  47 # -Wall: Issue all automake warnings.
  48 # -Wno-portability: Don't warn about constructs supported by GNU make.
  49 #    (because GCC requires GNU make anyhow).
  50 #  -Wno-override: Overrides used in testsuite.
  51 AM_INIT_AUTOMAKE([1.11.1 foreign no-dist no-define no-dependencies subdir-objects -Wall -Wno-portability -Wno-override])
  52
  53 m4_rename([_AC_ARG_VAR_PRECIOUS],[glibd_PRECIOUS])
  54 m4_define([_AC_ARG_VAR_PRECIOUS],[])
  55 AM_PROG_AS
  56 AC_PROG_CC
  57 AC_PROG_GDC
  58 WITH_LOCAL_DRUNTIME([GDC_CHECK_COMPILE], [])
  59
  60 m4_rename_force([glibd_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
  61
  62 AC_SUBST(CFLAGS)
  63 AM_MAINTAINER_MODE
  64 AC_PROG_RANLIB
  65 AC_PROG_INSTALL
  66 AC_PROG_MAKE_SET
  67
  68 # This should be inherited in the recursive make, but ensure it is defined.
  69 test "$AR" || AR=ar
  70 AC_SUBST(AR)
  71
  72 CC_FOR_BUILD=${CC_FOR_BUILD:-gcc}
  73 AC_SUBST(CC_FOR_BUILD)
  74 AC_SUBST(CFLAGS_FOR_BUILD)
  75
  76 # Enable libtool
  77 LT_INIT(dlopen)
  78 AM_PROG_LIBTOOL
  79 WITH_LOCAL_DRUNTIME([LT_LANG([D])], [])
  80
  81 # libtool variables for Phobos shared and position-independent compiles.
  82 #
  83 # Use phobos_compiler_shared_flag to designate the compile-time flags for
  84 # creating shared objects. Default: -fversion=Shared.
  85 #
  86 # Use phobos_compiler_pic_flag to designate the compile-time flags for
  87 # creating position-independent objects. This varies with the target
  88 # hardware and operating system, but is often: -fPIC.
  89 #
  90 # The distinction between pic and shared compilation flags is not present in
  91 # libtool, and so we make it here.  How it is handled is that in shared
  92 # compilations the `lt_prog_compiler_pic_D' variable is used to instead
  93 # ensure that conditional compilation of shared runtime code is compiled in.
  94 # The original PIC flags are then used in the compilation of every object.
  95 #
  96 # Why are objects destined for libgphobos.a compiled with -fPIC?
  97 # Because -fPIC is not harmful to use for objects destined for static
  98 # libraries. In addition, using -fPIC will allow the use of static
  99 # libgphobos.a in the creation of other D shared libraries.
 100 if test "$enable_shared" = yes; then
 101   phobos_compiler_pic_flag="$lt_prog_compiler_pic_D"
 102   phobos_compiler_shared_flag="-fversion=Shared"
 103 else
 104   phobos_compiler_pic_flag=
 105   phobos_compiler_shared_flag=
 106 fi
 107 AC_SUBST(phobos_compiler_pic_flag)
 108 AC_SUBST(phobos_compiler_shared_flag)
 109
 110 # Override the libtool's pic_flag and pic_mode.
 111 # Do this step after AM_PROG_LIBTOOL, but before AC_OUTPUT.
 112 # NB: this impacts --with-pic and --without-pic.
 113 lt_prog_compiler_pic_D="$phobos_compiler_shared_flag"
 114 pic_mode='default'
 115
 116 # Determine what GCC version number to use in filesystem paths.
 117 GCC_BASE_VER
 118
 119 # libphobos/libdruntime specific options and feature detection
 120 DRUNTIME_CONFIGURE
 121 DRUNTIME_MULTILIB
 122 DRUNTIME_WERROR
 123 DRUNTIME_CPU_SOURCES
 124 DRUNTIME_OS_SOURCES
 125 DRUNTIME_OS_THREAD_MODEL
 126 DRUNTIME_OS_ARM_EABI_UNWINDER
 127 DRUNTIME_OS_MINFO_BRACKETING
 128 DRUNTIME_OS_DLPI_TLS_MODID
 129 DRUNTIME_OS_LINK_SPEC
 130 DRUNTIME_LIBRARIES_CLIB
 131
 132 WITH_LOCAL_DRUNTIME([
 133   AC_LANG_PUSH([D])
 134   AC_SEARCH_LIBS([malloc], [c])
 135   AC_SEARCH_LIBS([pthread_create], [pthread])
 136   AC_SEARCH_LIBS([cosf], [m])
 137   AC_SEARCH_LIBS([clock_gettime], [rt])
 138   DRUNTIME_ENABLE_ATOMIC_BUILTINS
 139   AC_LANG_POP([D])
 140 ], [-nophoboslib])
 141
 142 DRUNTIME_LIBRARIES_ATOMIC
 143 DRUNTIME_LIBRARIES_BACKTRACE
 144 DRUNTIME_LIBRARIES_DLOPEN
 145 DRUNTIME_LIBRARIES_NET
 146 DRUNTIME_LIBRARIES_UCONTEXT
 147 DRUNTIME_LIBRARIES_ZLIB
 148 DRUNTIME_INSTALL_DIRECTORIES
 149
 150 AC_MSG_CHECKING([for --enable-libphobos])
 151 AC_ARG_ENABLE(libphobos,
 152   [AS_HELP_STRING([--enable-libphobos], [Enable libphobos])])
 153 AC_MSG_RESULT($enable_libphobos)
 154
 155 AC_MSG_CHECKING([for --with-libphobos-druntime-only])
 156 AC_ARG_WITH(libphobos-druntime-only,
 157   AS_HELP_STRING([--with-libphobos-druntime-only={yes,no,auto}],
 158                  [build only the druntime library (default: auto)]),,
 159             [with_libphobos_druntime_only=auto])
 160 AC_MSG_RESULT($with_libphobos_druntime_only)
 161
 162 case "$with_libphobos_druntime_only" in
 163   yes|no|auto) ;;
 164   *) AC_MSG_ERROR([Invalid argument for --with-libphobos-druntime-only]) ;;
 165 esac
 166
 167 # See if supported.
 168 unset LIBPHOBOS_SUPPORTED
 169 unset LIBDRUNTIME_ONLY
 170 AC_MSG_CHECKING([for host support for libphobos])
 171 . ${srcdir}/configure.tgt
 172 case ${host} in
 173   x86_64-*-solaris2.* | i?86-*-solaris2.*)
 174     # libphobos doesn't compile with the Solaris/x86 assembler due to a
 175     # relatively low linelength limit.
 176     as_prog=`$CC -print-prog-name=as`
 177     if test -n "$as_prog" && $as_prog -v /dev/null 2>&1 | grep GNU > /dev/null 2>&1; then
 178       druntime_cv_use_gas=yes;
 179     else
 180       druntime_cv_use_gas=no;
 181     fi
 182     rm -f a.out
 183     if test x$druntime_cv_use_gas = xno; then
 184       LIBPHOBOS_SUPPORTED=no
 185     fi
 186     # 64-bit D execution fails with Solaris ld without -z relax=transtls support.
 187     if test "$druntime_ld_gld" = "no" && test "$druntime_ld_relax_transtls" = "no"; then
 188       LIBPHOBOS_SUPPORTED=no
 189     fi
 190     ;;
 191 esac
 192 AC_MSG_RESULT($LIBPHOBOS_SUPPORTED)
 193
 194 # Decide if it's usable.
 195 case $LIBPHOBOS_SUPPORTED:$enable_libphobos in
 196 *:no)  use_libphobos=no  ;;
 197 *:yes) use_libphobos=yes ;;
 198 yes:*) use_libphobos=yes ;;
 199 *:*)   use_libphobos=no  ;;
 200 esac
 201 AM_CONDITIONAL(ENABLE_LIBPHOBOS, test x$use_libphobos = xyes)
 202
 203 # Decide if only libdruntime should be built.
 204 case $LIBDRUNTIME_ONLY:$with_libphobos_druntime_only in
 205 *:no)  only_libdruntime=no  ;;
 206 *:yes) only_libdruntime=yes ;;
 207 yes:*) only_libdruntime=yes ;;
 208 *:*)   only_libdruntime=no  ;;
 209 esac
 210 AM_CONDITIONAL(ENABLE_LIBDRUNTIME_ONLY, test x$only_libdruntime = xyes)
 211
 212 # Enable expensive internal checks
 213 AC_ARG_ENABLE(libphobos-checking,
 214 [AS_HELP_STRING([[--enable-libphobos-checking[=LIST]]],
 215                 [enable expensive run-time checks.  With LIST,
 216                  enable only specific categories of checks.
 217                  Categories are: yes,no,all,none,release.
 218                  Flags are: assert or other strings])],
 219 [ac_checking_flags="${enableval}"],[ac_checking_flags=release])
 220 IFS="${IFS=     }"; ac_save_IFS="$IFS"; IFS="$IFS,"
 221 for check in release $ac_checking_flags
 222 do
 223         case $check in
 224         # These set all the flags to specific states
 225         yes|all) RELEASE_FLAG="-fno-release" ; ASSERT_FLAG= ;;
 226         no|none|release) RELEASE_FLAG="-frelease" ; ASSERT_FLAG= ;;
 227         # These enable particular checks
 228         assert) ASSERT_FLAG="-fassert" ;;
 229         # Accept
 230         *) ;;
 231         esac
 232 done
 233 IFS="$ac_save_IFS"
 234 CHECKING_DFLAGS="$RELEASE_FLAG $ASSERT_FLAG"
 235 AC_SUBST(CHECKING_DFLAGS)
 236
 237 # Add drtbegin.o/drtend.o to startfile/endfile specs in libgphobos.spec
 238 if test "$DCFG_MINFO_BRACKETING" = "false"; then
 239     DRTSTUFF_SPEC=$srcdir/src/drtstuff.spec
 240 else
 241     DRTSTUFF_SPEC=/dev/null
 242 fi
 243 AC_SUBST_FILE(DRTSTUFF_SPEC)
 244
 245 # Add dependencies for libgphobos.spec file
 246 SPEC_PHOBOS_DEPS="$LIBS"
 247 AC_SUBST(SPEC_PHOBOS_DEPS)
 248
 249 # Libdruntime / phobos soname version
 250 libtool_VERSION=1:0:0
 251 AC_SUBST(libtool_VERSION)
 252
 253 # Set default flags (after DRUNTIME_WERROR!)
 254 if test -z "$GDCFLAGS"; then
 255     GDCFLAGS="-g -O2"
 256 fi
 257 AC_SUBST(GDCFLAGS)
 258
 259 WARN_DFLAGS="-Wall $WERROR_FLAG"
 260 AC_SUBST(WARN_DFLAGS)
 261
 262 # Sanity check for the cross-compilation case:
 263 AC_CHECK_HEADER(stdio.h,:,
 264   [AC_MSG_ERROR([cannot find stdio.h.])])
 265
 266 AC_CONFIG_FILES(Makefile)
 267
 268 AC_CONFIG_FILES(libdruntime/gcc/config.d libdruntime/gcc/libbacktrace.d)
 269 AC_CONFIG_FILES(src/libgphobos.spec)
 270 AC_CONFIG_FILES([testsuite/testsuite_flags],[chmod +x testsuite/testsuite_flags])
 271
 272 # Multilibs need MULTISUBDIR defined correctly in certain makefiles so
 273 # that multilib installs will end up installed in the correct place.
 274 # The testsuite needs it for multilib-aware ABI baseline files.
 275 # To work around this not being passed down from config-ml.in ->
 276 # srcdir/Makefile.am -> srcdir/{src,libdruntime,...}/Makefile.am, manually
 277 # append it here.  Only modify Makefiles that have just been created.
 278 #
 279 # Also, get rid of this simulated-VPATH thing that automake does.
 280 AC_CONFIG_FILES(AC_FOREACH([DIR], [libdruntime src testsuite], [DIR/Makefile ]),
 281   [cat > vpsed$$ << \_EOF
 282 s!`test -f '$<' || echo '$(srcdir)/'`!!
 283 _EOF
 284    sed -f vpsed$$ $ac_file > tmp$$
 285    mv tmp$$ $ac_file
 286    rm vpsed$$
 287    echo 'MULTISUBDIR =' >> $ac_file
 288    ml_norecursion=yes
 289    . ${multi_basedir}/config-ml.in
 290    AS_UNSET([ml_norecursion])
 291 ])
 292
 293 AC_OUTPUT