1 # Process this file with autoconf to produce a configure script.
2 # Copyright (C) 2006-2020 Free Software Foundation, Inc.
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)
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.
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/>.
18 # This requires that you have your environment set-up to use explicit
19 # versions of automake and autoconf.
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
29 AC_INIT(package-unused, version-unused,, libphobos)
30 AC_CONFIG_SRCDIR(libdruntime/gcc/attribute.d)
31 AC_CONFIG_HEADERS(config.h)
33 AM_ENABLE_MULTILIB(, ..)
35 AC_USE_SYSTEM_EXTENSIONS
37 target_alias=${target_alias-$target}
38 AC_SUBST(target_alias)
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])
53 m4_rename([_AC_ARG_VAR_PRECIOUS],[glibd_PRECIOUS])
54 m4_define([_AC_ARG_VAR_PRECIOUS],[])
58 WITH_LOCAL_DRUNTIME([GDC_CHECK_COMPILE], [])
60 m4_rename_force([glibd_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
68 # This should be inherited in the recursive make, but ensure it is defined.
72 CC_FOR_BUILD=${CC_FOR_BUILD:-gcc}
73 AC_SUBST(CC_FOR_BUILD)
74 AC_SUBST(CFLAGS_FOR_BUILD)
79 WITH_LOCAL_DRUNTIME([LT_LANG([D])], [])
81 # libtool variables for Phobos shared and position-independent compiles.
83 # Use phobos_compiler_shared_flag to designate the compile-time flags for
84 # creating shared objects. Default: -fversion=Shared.
86 # Use phobos_compiler_pic_flag to designate the compile-time flags for
87 # creating position-independent objects. This varies with the target
88 # hardware and operating system, but is often: -fPIC.
90 # The distinction between pic and shared compilation flags is not present in
91 # libtool, and so we make it here. How it is handled is that in shared
92 # compilations the `lt_prog_compiler_pic_D' variable is used to instead
93 # ensure that conditional compilation of shared runtime code is compiled in.
94 # The original PIC flags are then used in the compilation of every object.
96 # Why are objects destined for libgphobos.a compiled with -fPIC?
97 # Because -fPIC is not harmful to use for objects destined for static
98 # libraries. In addition, using -fPIC will allow the use of static
99 # libgphobos.a in the creation of other D shared libraries.
100 if test "$enable_shared" = yes; then
101 phobos_compiler_pic_flag="$lt_prog_compiler_pic_D"
102 phobos_compiler_shared_flag="-fversion=Shared"
104 phobos_compiler_pic_flag=
105 phobos_compiler_shared_flag=
107 AC_SUBST(phobos_compiler_pic_flag)
108 AC_SUBST(phobos_compiler_shared_flag)
110 # Override the libtool's pic_flag and pic_mode.
111 # Do this step after AM_PROG_LIBTOOL, but before AC_OUTPUT.
112 # NB: this impacts --with-pic and --without-pic.
113 lt_prog_compiler_pic_D="$phobos_compiler_shared_flag"
116 # Determine what GCC version number to use in filesystem paths.
119 # libphobos/libdruntime specific options and feature detection
127 DRUNTIME_OS_THREAD_MODEL
128 DRUNTIME_OS_ARM_EABI_UNWINDER
129 DRUNTIME_OS_MINFO_BRACKETING
130 DRUNTIME_OS_DLPI_TLS_MODID
131 DRUNTIME_OS_LINK_SPEC
132 DRUNTIME_LIBRARIES_CLIB
134 WITH_LOCAL_DRUNTIME([
136 AC_SEARCH_LIBS([malloc], [c])
137 DRUNTIME_LIBRARIES_THREAD
138 AC_SEARCH_LIBS([cosf], [m])
139 AC_SEARCH_LIBS([clock_gettime], [rt])
140 DRUNTIME_ENABLE_ATOMIC_BUILTINS
144 DRUNTIME_LIBRARIES_ATOMIC
145 DRUNTIME_LIBRARIES_BACKTRACE
146 DRUNTIME_LIBRARIES_DLOPEN
147 DRUNTIME_LIBRARIES_NET
148 DRUNTIME_LIBRARIES_ZLIB
149 DRUNTIME_INSTALL_DIRECTORIES
151 AC_MSG_CHECKING([for --enable-libphobos])
152 AC_ARG_ENABLE(libphobos,
153 [AS_HELP_STRING([--enable-libphobos], [Enable libphobos])])
154 AC_MSG_RESULT($enable_libphobos)
157 unset LIBPHOBOS_SUPPORTED
158 AC_MSG_CHECKING([for host support for libphobos])
159 . ${srcdir}/configure.tgt
161 x86_64-*-solaris2.* | i?86-*-solaris2.*)
162 # libphobos doesn't compile with the Solaris/x86 assembler due to a
163 # relatively low linelength limit.
164 as_prog=`$CC -print-prog-name=as`
165 if test -n "$as_prog" && $as_prog -v /dev/null 2>&1 | grep GNU > /dev/null 2>&1; then
166 druntime_cv_use_gas=yes;
168 druntime_cv_use_gas=no;
171 if test x$druntime_cv_use_gas = xno; then
172 LIBPHOBOS_SUPPORTED=no
174 # 64-bit D execution fails with Solaris ld without -z relax=transtls support.
175 if test "$druntime_ld_gld" = "no" && test "$druntime_ld_relax_transtls" = "no"; then
176 LIBPHOBOS_SUPPORTED=no
180 AC_MSG_RESULT($LIBPHOBOS_SUPPORTED)
182 # Decide if it's usable.
183 case $LIBPHOBOS_SUPPORTED:$enable_libphobos in
184 *:no) use_libphobos=no ;;
185 *:yes) use_libphobos=yes ;;
186 yes:*) use_libphobos=yes ;;
187 *:*) use_libphobos=no ;;
189 AM_CONDITIONAL(ENABLE_LIBPHOBOS, test x$use_libphobos = xyes)
191 # Add drtbegin.o/drtend.o to startfile/endfile specs in libgphobos.spec
192 if test "$DCFG_MINFO_BRACKETING" = "false"; then
193 DRTSTUFF_SPEC=$srcdir/src/drtstuff.spec
195 DRTSTUFF_SPEC=/dev/null
197 AC_SUBST_FILE(DRTSTUFF_SPEC)
199 # Add dependencies for libgphobos.spec file
200 SPEC_PHOBOS_DEPS="$LIBS"
201 AC_SUBST(SPEC_PHOBOS_DEPS)
203 # Libdruntime / phobos soname version
204 libtool_VERSION=76:3:0
205 AC_SUBST(libtool_VERSION)
207 # Set default flags (after DRUNTIME_WERROR!)
208 if test -z "$GDCFLAGS"; then
209 GDCFLAGS="-Wall $WERROR_FLAG -g -frelease -O2"
213 if test -z "$GDCFLAGSX"; then
214 GDCFLAGSX="-Wall $WERROR_FLAG -g -fno-release -funittest"
218 # Sanity check for the cross-compilation case:
219 AC_CHECK_HEADER(stdio.h,:,
220 [AC_MSG_ERROR([cannot find stdio.h.])])
222 AC_CONFIG_FILES(Makefile)
224 AC_CONFIG_FILES(libdruntime/gcc/config.d libdruntime/gcc/libbacktrace.d)
225 AC_CONFIG_FILES(src/libgphobos.spec)
226 AC_CONFIG_FILES([testsuite/testsuite_flags],[chmod +x testsuite/testsuite_flags])
228 # Multilibs need MULTISUBDIR defined correctly in certain makefiles so
229 # that multilib installs will end up installed in the correct place.
230 # The testsuite needs it for multilib-aware ABI baseline files.
231 # To work around this not being passed down from config-ml.in ->
232 # srcdir/Makefile.am -> srcdir/{src,libdruntime,...}/Makefile.am, manually
233 # append it here. Only modify Makefiles that have just been created.
235 # Also, get rid of this simulated-VPATH thing that automake does.
236 AC_CONFIG_FILES(AC_FOREACH([DIR], [libdruntime src testsuite], [DIR/Makefile ]),
237 [cat > vpsed$$ << \_EOF
238 s!`test -f '$<' || echo '$(srcdir)/'`!!
240 sed -f vpsed$$ $ac_file > tmp$$
243 echo 'MULTISUBDIR =' >> $ac_file
245 . ${multi_basedir}/config-ml.in
246 AS_UNSET([ml_norecursion])