summaryrefslogtreecommitdiff
path: root/util/crossgcc/buildgcc
blob: 87054f2b071e2128694b2aac58e45d32c4a7f585 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
#!/bin/sh
#
# Copyright (C) 2008-2010 by coresystems GmbH
# written by Patrick Georgi <patrick.georgi@coresystems.de> and
#            Stefan Reinauer <stefan.reinauer@coresystems.de>
#
# Copyright (C) 2011 by Sage Electronic Engineering
#
# This program 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; version 2 of the License.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
#

CROSSGCC_DATE="September 20th, 2013"
CROSSGCC_VERSION="1.23"

# default settings
TARGETDIR=`pwd`/xgcc
TARGETARCH=i386-elf
DESTDIR=

# version numbers
GMP_VERSION=5.1.2
MPFR_VERSION=3.1.2
MPC_VERSION=1.0.1
LIBELF_VERSION=0.8.13
GCC_VERSION=4.7.3
GCC_AUTOCONF_VERSION=2.69
BINUTILS_VERSION=2.23.2
GDB_VERSION=7.6
IASL_VERSION=20130626
PYTHON_VERSION=3.3.2
EXPAT_VERSION=2.1.0

# archive locations
GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.bz2"
MPFR_ARCHIVE="http://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.bz2"
MPC_ARCHIVE="http://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
LIBELF_ARCHIVE="http://www.mr511.de/software/libelf-${LIBELF_VERSION}.tar.gz"
GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.bz2"
GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.bz2"
IASL_ARCHIVE="http://www.acpica.org/sites/acpica/files/acpica-unix-${IASL_VERSION}.tar.gz"
PYTHON_ARCHIVE="http://www.python.org/ftp/python/${PYTHON_VERSION}/Python-${PYTHON_VERSION}.tar.bz2"
EXPAT_ARCHIVE="http://downloads.sourceforge.net/sourceforge/expat/expat-${EXPAT_VERSION}.tar.gz"

GMP_DIR="gmp-${GMP_VERSION}"
MPFR_DIR="mpfr-${MPFR_VERSION}"
MPC_DIR="mpc-${MPC_VERSION}"
LIBELF_DIR="libelf-${LIBELF_VERSION}"
GCC_DIR="gcc-${GCC_VERSION}"
BINUTILS_DIR="binutils-${BINUTILS_VERSION}"
GDB_DIR="gdb-${GDB_VERSION}"
IASL_DIR="acpica-unix-${IASL_VERSION}"
PYTHON_DIR="Python-${PYTHON_VERSION}"
EXPAT_DIR="expat-${EXPAT_VERSION}"

SAVETEMPS=0
SKIPGDB=1
SKIPPYTHON=1

red='\033[0;31m'
RED='\033[1;31m'
green='\033[0;32m'
GREEN='\033[1;32m'
blue='\033[0;34m'
BLUE='\033[1;34m'
cyan='\033[0;36m'
CYAN='\033[1;36m'
NC='\033[0m' # No Color

UNAME=`uname`

normalize_dirs()
{
	mkdir -p $DESTDIR$TARGETDIR/lib
	test -d $DESTDIR$TARGETDIR/lib32 && mv $DESTDIR$TARGETDIR/lib32/* $DESTDIR$TARGETDIR/lib
	test -d $DESTDIR$TARGETDIR/lib64 && mv $DESTDIR$TARGETDIR/lib64/* $DESTDIR$TARGETDIR/lib
	rmdir -p $DESTDIR$TARGETDIR/lib32 $DESTDIR$TARGETDIR/lib64

	perl -pi -e "s,/lib32,/lib," $DESTDIR$TARGETDIR/lib/*.la
	perl -pi -e "s,/lib64,/lib," $DESTDIR$TARGETDIR/lib/*.la
}

searchgnu()
{
	# $1 short name
	# result: GNU version of that tool on stdout
	#         or no output if no GNU version was found
	for i in "$1" "g$1" "gnu$1"; do
		if test -x "`which $i 2>/dev/null`"; then
			if test `$i --version 2>/dev/null |grep -c GNU` \
			    -gt 0; then
				echo $i
				return
			fi
		fi
	done
	# A workaround for XxxBSD, whose nongnu patch and tar also work.
	if [ $UNAME = "FreeBSD" -o $UNAME = "NetBSD" ]; then
		if [ $1 != "make" ]; then
			if test -x "`which $1 2>/dev/null`"; then
				echo $1
				return
			fi
		fi
	fi
	printf "${RED}ERROR:${red} Missing toolchain: $1${NC}\n" >&2
	exit 1
}

TAR=`searchgnu tar` || exit $?
PATCH=`searchgnu patch` || exit $?
MAKE=`searchgnu make` || exit $?

searchgnu m4 > /dev/null
searchgnu bison > /dev/null

if ! flex --version > /dev/null 2> /dev/null; then
	printf "${RED}ERROR:${red} Missing toolchain: flex${NC}\n" >&2
	exit 1
fi

cleanup()
{
	printf "Cleaning up temporary files... "
	rm -rf ${BUILDDIRPREFIX}-* combined gcc-* gmp-* mpfr-* mpc-* libelf-* binutils-*
	rm -rf gdb-* acpica-* python-* expat-*
	printf "${green}ok${NC}\n"
}

myhelp()
{
	printf "Usage: $0 [-V] [-c] [-p <platform>] [-d <target directory>] [-D <dest dir>] [-G] [-S]\n"
	printf "       $0 [-V|--version]\n"
	printf "       $0 [-h|--help]\n\n"

	printf "Options:\n"
	printf "    [-V|--version]                print version number and exit\n"
	printf "    [-h|--help]                   print this help and exit\n"
	printf "    [-c|--clean]                  remove temporary files before build\n"
	printf "    [-t|--savetemps]              don't remove temporary files after build\n"
	printf "    [-y|--ccache]                 Use ccache when building cross compiler\n"
	printf "    [-j|--jobs <num>]             run <num> jobs in parallel in make\n"
	printf "    [-p|--platform <platform>]    target platform to build cross compiler for\n"
	printf "                                  (defaults to $TARGETARCH)\n"
	printf "    [-d|--directory <target dir>] target directory to install cross compiler to\n"
	printf "                                  (defaults to $TARGETDIR)\n\n"
	printf "    [-D|--destdir <dest dir>]     destination directory to install cross compiler to\n"
	printf "                                  (for RPM builds, default unset)\n"
	printf "    [-G|--gdb]                    build GNU debugger\n"
	printf "    [-S|--scripting]              build scripting support for GDB\n\n"
}

myversion()
{
	# version tag is always printed, so just print the license here

	cat << EOF
Copyright (C) 2008-2010 by coresystems GmbH
Copyright (C) 2011 by Sage Electronic Engineering

This program 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; version 2 of the License.

This program 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.

EOF
}

printf "${blue}Welcome to the ${red}coreboot${blue} cross toolchain builder v$CROSSGCC_VERSION ($CROSSGCC_DATE)${NC}\n\n"

# Look if we have getopt. If not, build it.
export PATH=$PATH:.
getopt - > /dev/null 2>/dev/null || gcc -o getopt getopt.c

# parse parameters.. try to find out whether we're running GNU getopt
getoptbrand="`getopt -V | sed -e '1!d' -e 's,^\(......\).*,\1,'`"
if [ "${getoptbrand}" = "getopt" ]; then
	# Detected GNU getopt that supports long options.
	args=`getopt -l version,help,clean,directory:,platform:,jobs:,destdir:,savetemps,skip-gdb,ccache Vhcd:p:j:D:tGy -- "$@"`
	eval set "$args"
else
	# Detected non-GNU getopt
	args=`getopt Vhcd:p:j:D:tGy $*`
	set -- $args
fi

if [ $? != 0 ]; then
	myhelp
	exit 1
fi

while true ; do
        case "$1" in
		-V|--version)	shift; myversion; exit 0;;
		-h|--help)	shift; myhelp; exit 0;;
		-c|--clean)	shift; clean=1;;
		-t|--savetemps)	shift; SAVETEMPS=1;;
		-d|--directory)	shift; TARGETDIR="$1"; shift;;
		-p|--platform)	shift; TARGETARCH="$1"; shift;;
		-D|--destdir)	shift; DESTDIR="$1"; shift;;
		-j|--jobs)	shift; JOBS="-j $1"; shift;;
		-G|--gdb)	shift; SKIPGDB=0;;
		-S|--scripting) shift; SKIPPYTHON=0;;
		-y|--ccache)	shift; USECCACHE=1;;
		--)		shift; break;;
		-*)		printf "Invalid option\n\n"; myhelp; exit 1;;
		*)		break;;
	esac
done

case "$TARGETARCH" in
	i386-elf)	;;
	i386-mingw32)	;;
	i386*)		TARGETARCH=i386-elf;;
	arm*)		TARGETARCH=armv7-a-eabi;;
	aarch64*)	TARGETARCH=aarch64-elf;;
	*)		printf "${red}WARNING: Unsupported architecture $TARGETARCH.${NC}\n\n"; ;;
esac

echo "Target arch is now $TARGETARCH"
BUILDDIRPREFIX=build-${TARGETARCH}

if [ "$clean" = "1" ]; then
	cleanup
fi

GDB_PACKAGE="GDB"
PYTHON_PACKAGE="PYTHON"
EXPAT_PACKAGE="EXPAT"
if [ $SKIPGDB -eq 1 ]; then
	printf "Will skip GDB ... ${green}ok${NC}\n"
	GDB_ARCHIVE=""
	GDB_PACKAGE=""
	if [ $SKIPPYTHON -eq 0 ]; then
		printf "Python scripting needs GDB ... disabling ... ${green}ok${NC}\n"
		SKIPPYTHON=1
	fi
fi
if [ $SKIPPYTHON -eq 1 ]; then
	PYTHON_ARCHIVE=""
	PYTHON_PACKAGE=""
	EXPAT_ARCHIVE=""
	EXPAT_PACKAGE=""
fi

# coreboot does not like the GOLD linker
# USE_GOLD="--enable-gold"
USE_GOLD=""
GCC_OPTIONS="--enable-lto"

printf "Downloading tar balls ... \n"
mkdir -p tarballs
for ARCHIVE in $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE $LIBELF_ARCHIVE  \
	    $GCC_ARCHIVE $BINUTILS_ARCHIVE $GDB_ARCHIVE \
	    $IASL_ARCHIVE $PYTHON_ARCHIVE $EXPAT_ARCHIVE; do
	FILE=`basename $ARCHIVE`
	printf " * $FILE "
	test -f tarballs/$FILE && printf "(cached)" || (
		printf "(downloading)"
		cd tarballs
		wget --no-check-certificate -q $ARCHIVE
	)
	test -f tarballs/$FILE || \
		printf "\n${RED}Failed to download $FILE.${NC}\n"
	test -f tarballs/$FILE || exit 1
	printf "\n"
done
printf "Downloaded tar balls ... "
printf "${green}ok${NC}\n"

printf "Unpacking and patching ... \n"
for PACKAGE in GMP MPFR MPC LIBELF GCC BINUTILS $PYTHON_PACKAGE \
	    $EXPAT_PACKAGE $GDB_PACKAGE IASL; do
	archive=$PACKAGE"_ARCHIVE"
	archive="`eval echo '$'$archive`"
	dir=$PACKAGE"_DIR"
	dir="`eval echo '$'${dir}`"
	test -d ${dir} && test -f ${dir}/.unpack_success || (
		printf " * `basename $archive`\n"
		FLAGS=zxf
		suffix=`echo $archive | sed 's,.*\.,,'`
		test "$suffix" = "gz" && FLAGS=zxf
		test "$suffix" = "bz2" && FLAGS=jxf
		test "$suffix" = "lzma" && FLAGS="--lzma -xf"
		$TAR $FLAGS tarballs/`basename $archive`
		for patch in patches/${dir}_*.patch; do
			test -r $patch || continue
			printf "   o `basename $patch`\n"
			$PATCH -s -N -p0 < `echo $patch` || \
				printf "\n${RED}Failed $patch.${NC}\n"
		done
		touch ${dir}/.unpack_success
	)
done
printf "Unpacked and patched ... "
printf "${green}ok${NC}\n"

CC=cc
if [ $UNAME = "Darwin" ]; then
	#GCC_OPTIONS="$GCC_OPTIONS --enable-threads=posix"

	# generally the OS X compiler can create x64 binaries.
	# Per default it generated i386 binaries in 10.5 and x64
	# binaries in 10.6 (even if the kernel is 32bit)
	# For some weird reason, 10.5 autodetects an ABI=64 though
	# so we're setting the ABI explicitly here.
	if [ `sysctl -n hw.optional.x86_64 2>/dev/null` -eq 1 ] 2>/dev/null; then
		OPTIONS="ABI=64"
	else
		OPTIONS="ABI=32"
	fi

	# In Xcode 4.5.2 the default compiler is clang.
	# However, this compiler fails to compile gcc 4.7.x. As a
	# workaround it's possible to compile gcc with llvm-gcc.
	if $CC -v 2>&1 | grep -q LLVM; then
		CC=llvm-gcc
	fi
fi

if [ "$USECCACHE" = 1 ]; then
	CC="ccache $CC"
fi

mkdir -p ${BUILDDIRPREFIX}-gmp ${BUILDDIRPREFIX}-mpfr ${BUILDDIRPREFIX}-mpc ${BUILDDIRPREFIX}-libelf ${BUILDDIRPREFIX}-binutils \
		${BUILDDIRPREFIX}-gcc ${BUILDDIRPREFIX}-python ${BUILDDIRPREFIX}-expat

mkdir -p $DESTDIR$TARGETDIR/bin
export PATH=$DESTDIR$TARGETDIR/bin:$PATH

if [ $SKIPGDB -eq 0 ]; then
	mkdir -p ${BUILDDIRPREFIX}-gdb
fi
if [ -f ${BUILDDIRPREFIX}-gmp/.success ]; then
	printf "Skipping GMP as it is already built\n"
else
printf "Building GMP ${GMP_VERSION} ... "
(
	cd ${BUILDDIRPREFIX}-gmp
	rm -f .failed
	CC="$CC" ../${GMP_DIR}/configure --disable-shared --prefix=$TARGETDIR $OPTIONS \
		|| touch .failed
	$MAKE $JOBS || touch .failed
	$MAKE install DESTDIR=$DESTDIR || touch .failed

	normalize_dirs

	if [ ! -f .failed ]; then touch .success; fi
) > ${BUILDDIRPREFIX}-gmp/crossgcc-build.log 2>&1
test -r ${BUILDDIRPREFIX}-gmp/.failed && printf "${RED}failed${NC}\n" || \
	printf "${green}ok${NC}\n"
test -r ${BUILDDIRPREFIX}-gmp/.failed && exit 1
fi

# Now set CFLAGS to match GMP CFLAGS but strip out -pedantic
# as GCC 4.6.x fails if it's there.
HOSTCFLAGS=`grep __GMP_CFLAGS $DESTDIR$TARGETDIR/include/gmp.h |cut -d\" -f2 |\
	    sed s,-pedantic,,`

if [ -f ${BUILDDIRPREFIX}-mpfr/.success ]; then
	printf "Skipping MPFR as it is already built\n"
else
printf "Building MPFR ${MPFR_VERSION} ... "
(
	test $UNAME = "Darwin" && CFLAGS="$CFLAGS -force_cpusubtype_ALL"
	cd ${BUILDDIRPREFIX}-mpfr
	rm -f .failed
	CC="$CC" ../${MPFR_DIR}/configure --disable-shared --prefix=$TARGETDIR \
		--infodir=$TARGETDIR/info \
		--with-gmp=$DESTDIR$TARGETDIR CFLAGS="$HOSTCFLAGS" || \
		touch .failed
	$MAKE $JOBS || touch .failed
	$MAKE install DESTDIR=$DESTDIR || touch .failed

	normalize_dirs

	# work around build problem of libgmp.la
	if [ "$DESTDIR" != "" ]; then
	    perl -pi -e "s,$DESTDIR,," $DESTDIR$TARGETDIR/libgmp.la
	fi

	if [ ! -f .failed ]; then touch .success; fi
) > ${BUILDDIRPREFIX}-mpfr/crossgcc-build.log 2>&1
test -r ${BUILDDIRPREFIX}-mpfr/.failed && printf "${RED}failed${NC}\n" || \
	     printf "${green}ok${NC}\n"
test -r ${BUILDDIRPREFIX}-mpfr/.failed && exit 1
fi

if [ -f ${BUILDDIRPREFIX}-mpc/.success ]; then
	printf "Skipping MPC as it is already built\n"
else
printf "Building MPC ${MPC_VERSION} ... "
(
	cd ${BUILDDIRPREFIX}-mpc
	rm -f .failed
	CC="$CC" ../${MPC_DIR}/configure --disable-shared --prefix=$TARGETDIR \
		--infodir=$TARGETDIR/info --with-mpfr=$DESTDIR$TARGETDIR \
		--with-gmp=$DESTDIR$TARGETDIR CFLAGS="$HOSTCFLAGS" || \
		touch .failed
	$MAKE $JOBS || touch .failed
	$MAKE install DESTDIR=$DESTDIR || touch .failed

	normalize_dirs

	if [ ! -f .failed ]; then touch .success; fi
) > ${BUILDDIRPREFIX}-mpc/crossgcc-build.log 2>&1
test -r ${BUILDDIRPREFIX}-mpc/.failed && printf "${RED}failed${NC}\n" || \
	     printf "${green}ok${NC}\n"
test -r ${BUILDDIRPREFIX}-mpc/.failed && exit 1
fi

if [ -f ${BUILDDIRPREFIX}-libelf/.success ]; then
	printf "Skipping libelf as it is already built\n"
else
printf "Building libelf ${LIBELF_VERSION} ... "
(
	cd ${BUILDDIRPREFIX}-libelf
	rm -f .failed
	echo "$HOSTCFLAGS"
	CC="$CC" CFLAGS="$HOSTCFLAGS" libelf_cv_elf_h_works=no \
	../${LIBELF_DIR}/configure --disable-shared --prefix=$TARGETDIR \
		--infodir=$TARGETDIR/info CFLAGS="$HOSTCFLAGS" || touch .failed
	$MAKE $JOBS || touch .failed
	$MAKE install DESTDIR=$DESTDIR || touch .failed

	normalize_dirs

	if [ ! -f .failed ]; then touch .success; fi
) > ${BUILDDIRPREFIX}-libelf/crossgcc-build.log 2>&1
test -r ${BUILDDIRPREFIX}-libelf/.failed && printf "${RED}failed${NC}\n" || \
	     printf "${green}ok${NC}\n"
test -r ${BUILDDIRPREFIX}-libelf/.failed && exit 1
fi

if [ -f ${BUILDDIRPREFIX}-binutils/.success ]; then
	printf "Skipping binutils as it is already built\n"
else
printf "Building binutils ${BINUTILS_VERSION} ... "
(
	# What a pain: binutils don't come with configure
	# script anymore. Create it:
	cd binutils-${BINUTILS_VERSION}/
	autoconf
	cd ..
	# Now build binutils
	cd ${BUILDDIRPREFIX}-binutils
	rm -f .failed
	CC="$CC" ../binutils-${BINUTILS_VERSION}/configure --prefix=$TARGETDIR \
		--target=${TARGETARCH} --disable-werror --disable-nls \
		$USE_GOLD CFLAGS="$HOSTCFLAGS" || touch .failed
	$MAKE $JOBS || touch .failed
	$MAKE install DESTDIR=$DESTDIR || touch .failed
	if [ ! -f .failed ]; then touch .success; fi
) > ${BUILDDIRPREFIX}-binutils/crossgcc-build.log 2>&1
test -r ${BUILDDIRPREFIX}-binutils/.failed && printf "${RED}failed${NC}\n" || \
	     printf "${green}ok${NC}\n"
test -r ${BUILDDIRPREFIX}-binutils/.failed && exit 1
fi

if [ -f ${BUILDDIRPREFIX}-gcc/.success ]; then
	printf "Skipping GCC as it is already built\n"
else
printf "Building GCC ${GCC_VERSION} ... "
(
	# Even worse than binutils: GCC does not come with configure
	# script anymore, but also enforces an obsolete autoconf version
	# to create it. This is a poster child of how autotools help make
	# software portable.
	cd gcc-${GCC_VERSION}
	sed '/dnl Ensure exactly this Autoconf version is used/d' \
		config/override.m4 > config/override.m4.new
	autoconf_version=`autoconf -V | grep "autoconf" | tr ' ' '\n' | tail -1`
	sed "s/${GCC_AUTOCONF_VERSION}/${autoconf_version}/g" \
		config/override.m4.new > config/override.m4
	autoconf
	cd ..
	# Now, finally, we can build gcc:
	cd ${BUILDDIRPREFIX}-gcc
	rm -f .failed
	# GCC does not honour HOSTCFLAGS at all. CFLAGS are used for
	# both target and host object files. This is pretty misdesigned.
	# There's a work-around called CFLAGS_FOR_BUILD and CFLAGS_FOR_TARGET
	# but it does not seem to work properly. At least the host library
	# libiberty is not compiled with CFLAGS_FOR_BUILD.
	CC="$CC" CFLAGS_FOR_TARGET="-O2" CFLAGS="$HOSTCFLAGS" \
		CFLAGS_FOR_BUILD="$HOSTCFLAGS" ../gcc-${GCC_VERSION}/configure \
		--prefix=$TARGETDIR --libexecdir=$TARGETDIR/lib \
		--target=${TARGETARCH} --disable-werror --disable-shared \
		--disable-libssp --disable-bootstrap --disable-nls \
		--disable-libquadmath --without-headers \
		$GCC_OPTIONS --enable-languages="c" $USE_GOLD \
		--with-gmp=$DESTDIR$TARGETDIR --with-mpfr=$DESTDIR$TARGETDIR \
		--with-mpc=$DESTDIR$TARGETDIR --with-libelf=$DESTDIR$TARGETDIR \
		--with-pkgversion="coreboot toolchain v$CROSSGCC_VERSION $CROSSGCC_DATE" \
		|| touch .failed
	$MAKE $JOBS CFLAGS_FOR_BUILD="$HOSTCFLAGS" all-gcc || touch .failed
	$MAKE install-gcc DESTDIR=$DESTDIR || touch .failed

	if [ "`echo $TARGETARCH | grep -c -- -mingw32`" -eq 0 ]; then
		$MAKE $JOBS CFLAGS_FOR_BUILD="$HOSTCFLAGS" all-target-libgcc || touch .failed
		$MAKE install-target-libgcc DESTDIR=$DESTDIR || touch .failed
	fi

	if [ ! -f .failed ]; then touch .success; fi
) > ${BUILDDIRPREFIX}-gcc/crossgcc-build.log 2>&1
test -r ${BUILDDIRPREFIX}-gcc/.failed && printf "${RED}failed${NC}\n" || \
	     printf "${green}ok${NC}\n"
test -r ${BUILDDIRPREFIX}-gcc/.failed && exit 1
fi

if [ -f ${BUILDDIRPREFIX}-expat/.success ]; then
	printf "Skipping Expat as it is already built\n"
elif [ $SKIPPYTHON -eq 1 ]; then
	printf "Skipping Expat (Python scripting not enabled)\n"
else
printf "Building Expat ${EXPAT_VERSION} ... "
(
	cd ${BUILDDIRPREFIX}-expat
	rm -f .failed
	CC="$CC" CFLAGS="$HOSTCFLAGS" ../${EXPAT_DIR}/configure --disable-shared \
		--prefix=$TARGETDIR --target=${TARGETARCH} || touch .failed
	$MAKE || touch .failed
	$MAKE install DESTDIR=$DESTDIR || touch .failed

	normalize_dirs

	if [ ! -f .failed ]; then touch .success; fi
) > ${BUILDDIRPREFIX}-expat/crossgcc-build.log 2>&1
test -r ${BUILDDIRPREFIX}-expat/.failed && printf "${RED}failed${NC}\n" || \
	     printf "${green}ok${NC}\n"
test -r ${BUILDDIRPREFIX}-expat/.failed && exit 1
fi


if [ -f ${BUILDDIRPREFIX}-python/.success ]; then
	printf "Skipping Python as it is already built\n"
elif [ $SKIPPYTHON -eq 1 ]; then
	printf "Skipping Python (Python scripting not enabled)\n"
else
printf "Building Python ${PYTHON_VERSION} ... "
(
	cd ${BUILDDIRPREFIX}-python
	rm -f .failed
	CC="$CC" CFLAGS="$HOSTCFLAGS" ../${PYTHON_DIR}/configure --prefix=$TARGETDIR \
		--target=${TARGETARCH} || touch .failed
	$MAKE $JOBS || touch .failed
	$MAKE install DESTDIR=$DESTDIR || touch .failed

	normalize_dirs

	if [ ! -f .failed ]; then touch .success; fi
) > ${BUILDDIRPREFIX}-python/crossgcc-build.log 2>&1
test -r ${BUILDDIRPREFIX}-python/.failed && printf "${RED}failed${NC}\n" || \
	     printf "${green}ok${NC}\n"
test -r ${BUILDDIRPREFIX}-python/.failed && exit 1
fi


if [ -f ${BUILDDIRPREFIX}-gdb/.success ]; then
	printf "Skipping GDB as it is already built\n"
elif [ $SKIPGDB -eq 1 ]; then
	printf "Skipping GDB (GDB support not enabled)\n"
else
printf "Building GDB ${GDB_VERSION} ... "
(
	cd ${BUILDDIRPREFIX}-gdb
	export PYTHONHOME=$DESTDIR$TARGETDIR
	rm -f .failed
	LDFLAGS="-Wl,-rpath,\$\$ORIGIN/../lib/ -L$DESTDIR$TARGETDIR/lib \
		 -lpthread -ldl -lutil" \
	CC="$CC" CFLAGS="$HOSTCFLAGS -I$DESTDIR$TARGETDIR/include" \
	../gdb-${GDB_VERSION}/configure --prefix=$TARGETDIR \
		--target=${TARGETARCH} --disable-werror --disable-nls
	$MAKE $JOBS || touch .failed
	$MAKE install DESTDIR=$DESTDIR || touch .failed
	if [ ! -f .failed ]; then touch .success; fi
) > ${BUILDDIRPREFIX}-gdb/crossgcc-build.log 2>&1
test -r ${BUILDDIRPREFIX}-gdb/.failed && printf "${RED}failed${NC}\n" || \
	     printf "${green}ok${NC}\n"
test -r ${BUILDDIRPREFIX}-gdb/.failed && exit 1
fi

if [ -f $IASL_DIR/source/compiler/.success ]; then
	printf "Skipping IASL as it is already built\n"
else
printf "Building IASL ${IASL_VERSION} ... "
(
	cd $IASL_DIR/generate/unix
	rm -f .failed
	CFLAGS="$HOSTCFLAGS"
	HOST="_LINUX"
	test $UNAME = "Darwin" && HOST="_APPLE"
	test $UNAME = "FreeBSD" && HOST="_FreeBSD"
	test $UNAME = "Cygwin" && HOST="_CYGWIN"
	HOST="$HOST" OPT_CFLAGS="-O -D_FORTIFY_SOURCE=2" CFLAGS="$CFLAGS" $MAKE CC="$CC" iasl || touch .failed
	rm -f $DESTDIR$TARGETDIR/bin/iasl || touch .failed
	cp bin/iasl $DESTDIR$TARGETDIR/bin || touch .failed
	if [ ! -f .failed ]; then touch .success; fi
) > $IASL_DIR/source/compiler/crossgcc-build.log 2>&1
test -r $IASL_DIR/generate/unix/.failed && printf "${RED}failed${NC}\n" || \
	     printf "${green}ok${NC}\n"
test -r $IASL_DIR/generate/unix/.failed && exit 1
fi

rm -f $DESTDIR$TARGETDIR/$0.commit.*
cp $0 $DESTDIR$TARGETDIR/"$0.commit.`git describe`"

if [ $SAVETEMPS -eq 0 ]; then
	printf "Cleaning up... "
	rm -rf ${GMP_DIR} ${BUILDDIRPREFIX}-gmp
	rm -rf ${MPFR_DIR} ${BUILDDIRPREFIX}-mpfr
	rm -rf ${MPC_DIR} ${BUILDDIRPREFIX}-mpc
	rm -rf ${LIBELF_DIR} ${BUILDDIRPREFIX}-libelf
	rm -rf ${BINUTILS_DIR} ${BUILDDIRPREFIX}-binutils
	rm -rf ${GCC_DIR} ${BUILDDIRPREFIX}-gcc
	rm -rf ${GDB_DIR} ${BUILDDIRPREFIX}-gdb
	rm -rf ${EXPAT_DIR} ${BUILDDIRPREFIX}-expat
	rm -rf ${PYTHON_DIR} ${BUILDDIRPREFIX}-python
	rm -rf ${IASL_DIR}
	printf "${green}ok${NC}\n"
else
	printf "Leaving temporary files around... ${green}ok${NC}\n"
fi

printf "\n${green}You can now run your $TARGETARCH cross toolchain from $TARGETDIR.${NC}\n"