[thirdparty/gcc.git] / libphobos / configure.ac

# Process this file with autoconf to produce a configure script.
# Copyright (C) 2006-2019 Free Software Foundation, Inc.
#
# GCC is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# GCC is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GCC; see the file COPYING3.  If not see
# <http://www.gnu.org/licenses/>.

# This requires that you have your environment set-up to use explicit
# versions of automake and autoconf.
#
#    export ACLOCAL=/usr/bin/aclocal-1.15
#    export AUTOMAKE=/usr/bin/automake-1.15
#    export AUTOM4TE=/usr/bin/autom4te2.69
#    export AUTOCONF=/usr/bin/autoconf2.69
#
#    autoreconf2.69
#

AC_INIT(package-unused, version-unused,, libphobos)
AC_CONFIG_SRCDIR(libdruntime/gcc/attribute.d)
AC_CONFIG_HEADERS(config.h)

AM_ENABLE_MULTILIB(, ..)
AC_CANONICAL_SYSTEM

target_alias=${target_alias-$target}
AC_SUBST(target_alias)

# 1.11.1: Require that version of automake.
# foreign: Don't require README, INSTALL, NEWS, etc.
# no-define: Don't define PACKAGE and VERSION.
# no-dependencies: Don't generate automatic dependencies.
#    (because it breaks when using bootstrap-lean, since some of the
#    headers are gone at "make install" time).
# subdir-objects: Build objects in sub-directories.
# -Wall: Issue all automake warnings.
# -Wno-portability: Don't warn about constructs supported by GNU make.
#    (because GCC requires GNU make anyhow).
#  -Wno-override: Overrides used in testsuite.
AM_INIT_AUTOMAKE([1.11.1 foreign no-dist no-define no-dependencies subdir-objects -Wall -Wno-portability -Wno-override])

m4_rename([_AC_ARG_VAR_PRECIOUS],[glibd_PRECIOUS])
m4_define([_AC_ARG_VAR_PRECIOUS],[])
AM_PROG_AS
AC_PROG_CC
AC_PROG_GDC
WITH_LOCAL_DRUNTIME([GDC_CHECK_COMPILE], [])

m4_rename_force([glibd_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])

AC_SUBST(CFLAGS)
AM_MAINTAINER_MODE
AC_PROG_RANLIB
AC_PROG_INSTALL
AC_PROG_MAKE_SET

# This should be inherited in the recursive make, but ensure it is defined.
test "$AR" || AR=ar
AC_SUBST(AR)

CC_FOR_BUILD=${CC_FOR_BUILD:-gcc}
AC_SUBST(CC_FOR_BUILD)
AC_SUBST(CFLAGS_FOR_BUILD)

# Enable libtool
LT_INIT(dlopen)
AM_PROG_LIBTOOL
WITH_LOCAL_DRUNTIME([LT_LANG([D])], [])

# libtool variables for Phobos shared and position-independent compiles.
#
# Use phobos_compiler_shared_flag to designate the compile-time flags for
# creating shared objects. Default: -fversion=Shared.
#
# Use phobos_compiler_pic_flag to designate the compile-time flags for
# creating position-independent objects. This varies with the target
# hardware and operating system, but is often: -fPIC.
#
# The distinction between pic and shared compilation flags is not present in
# libtool, and so we make it here.  How it is handled is that in shared
# compilations the `lt_prog_compiler_pic_D' variable is used to instead
# ensure that conditional compilation of shared runtime code is compiled in.
# The original PIC flags are then used in the compilation of every object.
#
# Why are objects destined for libgphobos.a compiled with -fPIC?
# Because -fPIC is not harmful to use for objects destined for static
# libraries. In addition, using -fPIC will allow the use of static
# libgphobos.a in the creation of other D shared libraries.
if test "$enable_shared" = yes; then
  phobos_compiler_pic_flag="$lt_prog_compiler_pic_D"
  phobos_compiler_shared_flag="-fversion=Shared"
else
  phobos_compiler_pic_flag=
  phobos_compiler_shared_flag=
fi
AC_SUBST(phobos_compiler_pic_flag)
AC_SUBST(phobos_compiler_shared_flag)

# Override the libtool's pic_flag and pic_mode.
# Do this step after AM_PROG_LIBTOOL, but before AC_OUTPUT.
# NB: this impacts --with-pic and --without-pic.
lt_prog_compiler_pic_D="$phobos_compiler_shared_flag"
pic_mode='default'

# Determine what GCC version number to use in filesystem paths.
GCC_BASE_VER

# libphobos/libdruntime specific options and feature detection
DRUNTIME_CONFIGURE
DRUNTIME_MULTILIB
DRUNTIME_WERROR
DRUNTIME_GC
DRUNTIME_OS_UNIX
DRUNTIME_OS_SOURCES
DRUNTIME_OS_THREAD_MODEL
DRUNTIME_OS_ARM_EABI_UNWINDER
DRUNTIME_OS_MINFO_BRACKETING
DRUNTIME_OS_LINK_SPEC
DRUNTIME_LIBRARIES_CLIB

WITH_LOCAL_DRUNTIME([
  AC_LANG_PUSH([D])
  AC_SEARCH_LIBS([malloc], [c])
  DRUNTIME_LIBRARIES_THREAD
  AC_SEARCH_LIBS([cosf], [m])
  AC_SEARCH_LIBS([clock_gettime], [rt])
  DRUNTIME_ENABLE_ATOMIC_BUILTINS
  AC_LANG_POP([D])
], [-nophoboslib])

DRUNTIME_LIBRARIES_ATOMIC
DRUNTIME_LIBRARIES_BACKTRACE
DRUNTIME_LIBRARIES_DLOPEN
DRUNTIME_LIBRARIES_NET
DRUNTIME_LIBRARIES_ZLIB
DRUNTIME_INSTALL_DIRECTORIES

# Add drtbegin.o/drtend.o to startfile/endfile specs in libgphobos.spec
if test "$DCFG_MINFO_BRACKETING" = "false"; then
    DRTSTUFF_SPEC=$srcdir/src/drtstuff.spec
else
    DRTSTUFF_SPEC=/dev/null
fi
AC_SUBST_FILE(DRTSTUFF_SPEC)

# Add dependencies for libgphobos.spec file
SPEC_PHOBOS_DEPS="$LIBS"
AC_SUBST(SPEC_PHOBOS_DEPS)

# Libdruntime / phobos soname version
libtool_VERSION=76:3:0
AC_SUBST(libtool_VERSION)

# Set default flags (after DRUNTIME_WERROR!)
if test -z "$GDCFLAGS"; then
    GDCFLAGS="-Wall $WERROR_FLAG -g -frelease -O2"
fi
AC_SUBST(GDCFLAGS)

if test -z "$GDCFLAGSX"; then
    GDCFLAGSX="-Wall $WERROR_FLAG -g -fno-release -funittest"
fi
AC_SUBST(GDCFLAGSX)

# Sanity check for the cross-compilation case:
AC_CHECK_HEADER(stdio.h,:,
  [AC_MSG_ERROR([cannot find stdio.h.])])

AC_CONFIG_FILES(Makefile)

AC_CONFIG_FILES(libdruntime/gcc/config.d libdruntime/gcc/libbacktrace.d)
AC_CONFIG_FILES(src/libgphobos.spec)
AC_CONFIG_FILES([testsuite/testsuite_flags],[chmod +x testsuite/testsuite_flags])

# Multilibs need MULTISUBDIR defined correctly in certain makefiles so
# that multilib installs will end up installed in the correct place.
# The testsuite needs it for multilib-aware ABI baseline files.
# To work around this not being passed down from config-ml.in ->
# srcdir/Makefile.am -> srcdir/{src,libdruntime,...}/Makefile.am, manually
# append it here.  Only modify Makefiles that have just been created.
#
# Also, get rid of this simulated-VPATH thing that automake does.
AC_CONFIG_FILES(AC_FOREACH([DIR], [libdruntime src testsuite], [DIR/Makefile ]),
  [cat > vpsed$$ << \_EOF
s!`test -f '$<' || echo '$(srcdir)/'`!!
_EOF
   sed -f vpsed$$ $ac_file > tmp$$
   mv tmp$$ $ac_file
   rm vpsed$$
   echo 'MULTISUBDIR =' >> $ac_file
   ml_norecursion=yes
   . ${multi_basedir}/config-ml.in
   AS_UNSET([ml_norecursion])
])

AC_OUTPUT
Commit	Line	Data
03385ed3	1	# Process this file with autoconf to produce a configure script.
fbd26352	2	# Copyright (C) 2006-2019 Free Software Foundation, Inc.
03385ed3	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	#
1f580a79	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
03385ed3	25	#
1f580a79	26	# autoreconf2.69
03385ed3	27	#
03385ed3	28
03385ed3	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
	36	target_alias=${target_alias-$target}
	37	AC_SUBST(target_alias)
	38
	39	# 1.11.1: Require that version of automake.
	40	# foreign: Don't require README, INSTALL, NEWS, etc.
	41	# no-define: Don't define PACKAGE and VERSION.
	42	# no-dependencies: Don't generate automatic dependencies.
	43	# (because it breaks when using bootstrap-lean, since some of the
	44	# headers are gone at "make install" time).
a88a8aee	45	# subdir-objects: Build objects in sub-directories.
03385ed3	46	# -Wall: Issue all automake warnings.
	47	# -Wno-portability: Don't warn about constructs supported by GNU make.
	48	# (because GCC requires GNU make anyhow).
f00f02a3	49	# -Wno-override: Overrides used in testsuite.
a88a8aee	50	AM_INIT_AUTOMAKE([1.11.1 foreign no-dist no-define no-dependencies subdir-objects -Wall -Wno-portability -Wno-override])
03385ed3	51
	52	m4_rename([_AC_ARG_VAR_PRECIOUS],[glibd_PRECIOUS])
	53	m4_define([_AC_ARG_VAR_PRECIOUS],[])
	54	AM_PROG_AS
	55	AC_PROG_CC
	56	AC_PROG_GDC
	57	WITH_LOCAL_DRUNTIME([GDC_CHECK_COMPILE], [])
	58
	59	m4_rename_force([glibd_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
	60
	61	AC_SUBST(CFLAGS)
	62	AM_MAINTAINER_MODE
	63	AC_PROG_RANLIB
	64	AC_PROG_INSTALL
	65	AC_PROG_MAKE_SET
	66
	67	# This should be inherited in the recursive make, but ensure it is defined.
	68	test "$AR" \|\| AR=ar
	69	AC_SUBST(AR)
	70
	71	CC_FOR_BUILD=${CC_FOR_BUILD:-gcc}
	72	AC_SUBST(CC_FOR_BUILD)
	73	AC_SUBST(CFLAGS_FOR_BUILD)
	74
	75	# Enable libtool
	76	LT_INIT(dlopen)
	77	AM_PROG_LIBTOOL
	78	WITH_LOCAL_DRUNTIME([LT_LANG([D])], [])
03385ed3	79
	80	# libtool variables for Phobos shared and position-independent compiles.
	81	#
	82	# Use phobos_compiler_shared_flag to designate the compile-time flags for
	83	# creating shared objects. Default: -fversion=Shared.
	84	#
	85	# Use phobos_compiler_pic_flag to designate the compile-time flags for
	86	# creating position-independent objects. This varies with the target
	87	# hardware and operating system, but is often: -fPIC.
	88	#
	89	# The distinction between pic and shared compilation flags is not present in
	90	# libtool, and so we make it here. How it is handled is that in shared
	91	# compilations the `lt_prog_compiler_pic_D' variable is used to instead
	92	# ensure that conditional compilation of shared runtime code is compiled in.
	93	# The original PIC flags are then used in the compilation of every object.
	94	#
	95	# Why are objects destined for libgphobos.a compiled with -fPIC?
	96	# Because -fPIC is not harmful to use for objects destined for static
	97	# libraries. In addition, using -fPIC will allow the use of static
	98	# libgphobos.a in the creation of other D shared libraries.
	99	if test "$enable_shared" = yes; then
	100	phobos_compiler_pic_flag="$lt_prog_compiler_pic_D"
	101	phobos_compiler_shared_flag="-fversion=Shared"
	102	else
	103	phobos_compiler_pic_flag=
	104	phobos_compiler_shared_flag=
	105	fi
	106	AC_SUBST(phobos_compiler_pic_flag)
	107	AC_SUBST(phobos_compiler_shared_flag)
	108
	109	# Override the libtool's pic_flag and pic_mode.
	110	# Do this step after AM_PROG_LIBTOOL, but before AC_OUTPUT.
	111	# NB: this impacts --with-pic and --without-pic.
	112	lt_prog_compiler_pic_D="$phobos_compiler_shared_flag"
	113	pic_mode='default'
	114
	115	# Determine what GCC version number to use in filesystem paths.
	116	GCC_BASE_VER
	117
	118	# libphobos/libdruntime specific options and feature detection
	119	DRUNTIME_CONFIGURE
	120	DRUNTIME_MULTILIB
	121	DRUNTIME_WERROR
	122	DRUNTIME_GC
	123	DRUNTIME_OS_UNIX
	124	DRUNTIME_OS_SOURCES
	125	DRUNTIME_OS_THREAD_MODEL
	126	DRUNTIME_OS_ARM_EABI_UNWINDER
	127	DRUNTIME_OS_MINFO_BRACKETING
5b79027a	128	DRUNTIME_OS_LINK_SPEC
f667f7c1	129	DRUNTIME_LIBRARIES_CLIB
03385ed3	130
	131	WITH_LOCAL_DRUNTIME([
	132	AC_LANG_PUSH([D])
	133	AC_SEARCH_LIBS([malloc], [c])
	134	DRUNTIME_LIBRARIES_THREAD
	135	AC_SEARCH_LIBS([cosf], [m])
	136	AC_SEARCH_LIBS([clock_gettime], [rt])
	137	DRUNTIME_ENABLE_ATOMIC_BUILTINS
	138	AC_LANG_POP([D])
	139	], [-nophoboslib])
	140
	141	DRUNTIME_LIBRARIES_ATOMIC
	142	DRUNTIME_LIBRARIES_BACKTRACE
	143	DRUNTIME_LIBRARIES_DLOPEN
ebc4a4d2	144	DRUNTIME_LIBRARIES_NET
03385ed3	145	DRUNTIME_LIBRARIES_ZLIB
	146	DRUNTIME_INSTALL_DIRECTORIES
	147
e06fcd5a	148	# Add drtbegin.o/drtend.o to startfile/endfile specs in libgphobos.spec
	149	if test "$DCFG_MINFO_BRACKETING" = "false"; then
	150	DRTSTUFF_SPEC=$srcdir/src/drtstuff.spec
	151	else
	152	DRTSTUFF_SPEC=/dev/null
	153	fi
	154	AC_SUBST_FILE(DRTSTUFF_SPEC)
	155
03385ed3	156	# Add dependencies for libgphobos.spec file
	157	SPEC_PHOBOS_DEPS="$LIBS"
	158	AC_SUBST(SPEC_PHOBOS_DEPS)
	159
	160	# Libdruntime / phobos soname version
345422ff	161	libtool_VERSION=76:3:0
345422ff	162	AC_SUBST(libtool_VERSION)
03385ed3	163
	164	# Set default flags (after DRUNTIME_WERROR!)
	165	if test -z "$GDCFLAGS"; then
	166	GDCFLAGS="-Wall $WERROR_FLAG -g -frelease -O2"
	167	fi
	168	AC_SUBST(GDCFLAGS)
	169
	170	if test -z "$GDCFLAGSX"; then
	171	GDCFLAGSX="-Wall $WERROR_FLAG -g -fno-release -funittest"
	172	fi
	173	AC_SUBST(GDCFLAGSX)
	174
	175	# Sanity check for the cross-compilation case:
	176	AC_CHECK_HEADER(stdio.h,:,
	177	[AC_MSG_ERROR([cannot find stdio.h.])])
	178
5114391d	179	AC_CONFIG_FILES(Makefile)
03385ed3	180
	181	AC_CONFIG_FILES(libdruntime/gcc/config.d libdruntime/gcc/libbacktrace.d)
	182	AC_CONFIG_FILES(src/libgphobos.spec)
	183	AC_CONFIG_FILES([testsuite/testsuite_flags],[chmod +x testsuite/testsuite_flags])
	184
5114391d	185	# Multilibs need MULTISUBDIR defined correctly in certain makefiles so
	186	# that multilib installs will end up installed in the correct place.
	187	# The testsuite needs it for multilib-aware ABI baseline files.
	188	# To work around this not being passed down from config-ml.in ->
	189	# srcdir/Makefile.am -> srcdir/{src,libdruntime,...}/Makefile.am, manually
	190	# append it here. Only modify Makefiles that have just been created.
	191	#
	192	# Also, get rid of this simulated-VPATH thing that automake does.
	193	AC_CONFIG_FILES(AC_FOREACH([DIR], [libdruntime src testsuite], [DIR/Makefile ]),
	194	[cat > vpsed$$ << \_EOF
	195	s!`test -f '$<' \|\| echo '$(srcdir)/'`!!
03385ed3	196	_EOF
5114391d	197	sed -f vpsed$$ $ac_file > tmp$$
	198	mv tmp$$ $ac_file
	199	rm vpsed$$
	200	echo 'MULTISUBDIR =' >> $ac_file
	201	ml_norecursion=yes
	202	. ${multi_basedir}/config-ml.in
	203	AS_UNSET([ml_norecursion])
03385ed3	204	])
	205
	206	AC_OUTPUT