summaryrefslogtreecommitdiff
blob: cdc64a3fe7c6ec25c22fc698dbdf10884cbef350 (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
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
# Copyright 1999-2018 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

# @DEAD
# Removal on 2018-05-18.

# Author: George Shapovalov <george@gentoo.org>
# Author: Steve Arnold <nerdboy@gentoo.org>
# No maintainer <maintainer-needed@gentoo.org>
#
# Notes:
#  HOMEPAGE and LICENSE are set in appropriate ebuild, as
#  gnat is developed by FSF and AdaCore "in parallel"
#
# The following vars can be set in ebuild before inheriting this eclass. They
# will be respected:
#  SLOT
#  BOOT_SLOT - where old bootstrap is used as it works fine for 4.4 - 4.6

#WANT_AUTOMAKE="1.8"
#WANT_AUTOCONF="2.1"

inherit eutils fixheadtails flag-o-matic gnuconfig libtool multilib pax-utils toolchain-funcs versionator

FEATURES=${FEATURES/multilib-strict/}

EXPORTED_FUNCTIONS="pkg_setup pkg_postinst pkg_postrm src_unpack src_configure src_compile src_install"

EXPORT_FUNCTIONS ${EXPORTED_FUNCTIONS}

IUSE="nls openmp hardened multilib"
# multilib is supported via profiles now, multilib usevar is deprecated

RDEPEND="virtual/libiconv
	nls? ( virtual/libintl )"

DEPEND="${RDEPEND}
	>=app-eselect/eselect-gnat-1.5
	>=sys-libs/glibc-2.12
	>=sys-devel/binutils-2.23
	sys-devel/bc
	>=sys-devel/bison-1.875
	>=sys-devel/flex-2.5.4
	nls? ( sys-devel/gettext )"

# Note!
# It may not be safe to source this at top level. Only source inside local
# functions!
GnatCommon="/usr/share/gnat/lib/gnat-common.bash"

#---->> globals and SLOT <<----

# just a check, this location seems to vary too much, easier to track it in
# ebuild
#[ -z "${GNATSOURCE}" ] && die "please set GNATSOURCE in ebuild! (before inherit)"

# versioning
# because of gnatpro/gnatgpl we need to track both gcc and gnat versions

# these simply default to $PV
GNATMAJOR=$(get_version_component_range 1)
GNATMINOR=$(get_version_component_range 2)
GNATBRANCH=$(get_version_component_range 1-2)
GNATRELEASE=$(get_version_component_range 1-3)
# this one is for the gnat-gpl which is versioned by gcc backend and ACT version
# number added on top
ACT_Ver=$(get_version_component_range 4)

# GCCVER and SLOT logic
#
# I better define vars for package names, as there was discussion on proper
# naming and it may change
PN_GnatGCC="gnat-gcc"
PN_GnatGpl="gnat-gpl"

# ATTN! GCCVER stands for the provided backend gcc, not the one on the system
# so tc-* functions are of no use here. The present versioning scheme makes
# GCCVER basically a part of PV, but *this may change*!!
#
# GCCVER can be set in the ebuild.
[[ -z ${GCCVER} ]] && GCCVER="${GNATRELEASE}"


# finally extract GCC version strings
GCCMAJOR=$(get_version_component_range 1 "${GCCVER}")
GCCMINOR=$(get_version_component_range 2 "${GCCVER}")
GCCBRANCH=$(get_version_component_range 1-2 "${GCCVER}")
GCCRELEASE=$(get_version_component_range 1-3 "${GCCVER}")

# SLOT logic, make it represent gcc backend, as this is what matters most
# There are some special cases, so we allow it to be defined in the ebuild
# ATTN!! If you set SLOT in the ebuild, don't forget to make sure that
# BOOT_SLOT is also set properly!
[[ -z ${SLOT} ]] && SLOT="${GCCBRANCH}"

# possible future crosscompilation support
export CTARGET=${CTARGET:-${CHOST}}

is_crosscompile() {
	[[ ${CHOST} != ${CTARGET} ]]
}

# Bootstrap CTARGET and SLOT logic. For now BOOT_TARGET=CHOST is "guaranteed" by
# profiles, so mostly watch out for the right SLOT used in the bootstrap.
# As above, with SLOT, it may need to be defined in the ebuild
BOOT_TARGET=${CTARGET}
[[ -z ${BOOT_SLOT} ]] && BOOT_SLOT=${SLOT}

# for newer bootstrap starting with 4.9 (still experimental)
BOOT_VER=${GCCRELEASE}

# set our install locations
PREFIX=${GNATBUILD_PREFIX:-/usr} # not sure we need this hook, but may be..
LIBPATH=${PREFIX}/$(get_libdir)/${PN}/${CTARGET}/${SLOT}
LIBEXECPATH=${PREFIX}/libexec/${PN}/${CTARGET}/${SLOT}
INCLUDEPATH=${LIBPATH}/include
BINPATH=${PREFIX}/${CTARGET}/${PN}-bin/${SLOT}
DATAPATH=${PREFIX}/share/${PN}-data/${CTARGET}/${SLOT}
# ATTN! the one below should match the path defined in eselect-gnat module
CONFIG_PATH="/usr/share/gnat/eselect"
gnat_profile="${CTARGET}-${PN}-${SLOT}"
gnat_config_file="${CONFIG_PATH}/${gnat_profile}"

# ebuild globals
if [[ ${PN} == "${PN_GnatPro}" ]] && [[ ${GNATMAJOR} == "3" ]]; then
		DEPEND="x86? ( >=app-shells/tcsh-6.0 )"
fi
S="${WORKDIR}/gcc-${GCCVER}"

# bootstrap globals, common to src_unpack and src_compile
GNATBOOT="${WORKDIR}/usr"
GNATBUILD="${WORKDIR}/build"
#GNATBUILD="${BUILD_DIR}"

# necessary for detecting lib locations and creating env.d entry
#XGCC="${GNATBUILD}/gcc/xgcc -B${GNATBUILD}/gcc"

#----<< globals and SLOT >>----

# set SRC_URI's in ebuilds for now

#----<< global toolchain vars >>----

: ${TARGET_ABI:=${ABI}}
: ${TARGET_MULTILIB_ABIS:=${MULTILIB_ABIS}}
: ${TARGET_DEFAULT_ABI:=${DEFAULT_ABI}}


#---->> specs + env.d logic <<----
# TODO!!!
# set MANPATH, etc..
#----<< specs + env.d logic >>----


#---->> some helper functions <<----
tc_version_is_at_least() {
	version_is_at_least "$1" "${2:-${GCCBRANCH}}"
}

guess_patch_type_in_dir() {
	[[ -n $(ls "$1"/*.bz2 2>/dev/null) ]] \
		&& EPATCH_SUFFIX="patch.bz2" \
		|| EPATCH_SUFFIX="patch"
}

# configure to build with the hardened GCC specs as the default
make_gcc_hard() {
	# we want to be able to control the pie patch logic via something other
	# than ALL_CFLAGS...
	sed -e '/^ALL_CFLAGS/iHARD_CFLAGS = ' \
		-e 's|^ALL_CFLAGS = |ALL_CFLAGS = $(HARD_CFLAGS) |' \
		-i "${S}"/gcc/Makefile.in
	# Need to add HARD_CFLAGS to ALL_CXXFLAGS on >= 4.7
	if tc_version_is_at_least 4.7 ; then
		sed -e '/^ALL_CXXFLAGS/iHARD_CFLAGS = ' \
                        -e 's|^ALL_CXXFLAGS = |ALL_CXXFLAGS = $(HARD_CFLAGS) |' \
                        -i "${S}"/gcc/Makefile.in
	fi

	# defaults to enable for new gnatbuild
	if use hardened ; then
		gcc_hard_flags=" -DEFAULT_PIE_SSP"
	else
		gcc_hard_flags+=" -DEFAULT_SSP"
	fi

	sed -i \
		-e "/^HARD_CFLAGS = /s|=|= ${gcc_hard_flags} |" \
		"${S}"/gcc/Makefile.in || die

}

gcc-multilib-configure() {
	if ! is_multilib ; then
		confgcc="${confgcc} --disable-multilib"
		# Fun times: if we are building for a target that has multiple
		# possible ABI formats, and the user has told us to pick one
		# that isn't the default, then not specifying it via the list
		# below will break that on us.
	else
		confgcc="${confgcc} --enable-multilib"
	fi

	# translate our notion of multilibs into gcc's
	local abi list
	for abi in $(get_all_abis TARGET) ; do
		local l=$(gcc-abi-map ${abi})
		[[ -n ${l} ]] && list+=",${l}"
	done
	if [[ -n ${list} ]] ; then
		case ${CTARGET} in
		x86_64*)
			tc_version_is_at_least 4.8 && confgcc="${confgcc} --with-multilib-list=${list:1}"
			;;
		esac
	fi
}

gcc-abi-map() {
	# Convert the ABI name we use in Gentoo to what gcc uses
	local map=()
	case ${CTARGET} in
		mips*)   map=("o32 32" "n32 n32" "n64 64") ;;
		x86_64*) map=("amd64 m64" "x86 m32" "x32 mx32") ;;
	esac

	local m
	for m in "${map[@]}" ; do
		l=( ${m} )
	[[ $1 == ${l[0]} ]] && echo ${l[1]} && break
	done
}

is_multilib() {
	tc_version_is_at_least 3 || return 1
	use multilib
}

## note: replaced with minspecs (sort of)
#create_specs_file() {
#	einfo "Creating a vanilla gcc specs file"
#	"${WORKDIR}"/build/gcc/xgcc -dumpspecs > "${WORKDIR}"/build/vanilla.specs
#}

# eselect stuff taken straight from toolchain.eclass and greatly simplified
add_profile_eselect_conf() {
	local gnat_config_file=$1
	local abi=$2
	local var

	echo >> "${D}/${gnat_config_file}"
	if ! is_multilib ; then
		echo "  ctarget=${CTARGET}" >> "${D}/${gnat_config_file}"
	else
		echo "[${abi}]" >> "${D}/${gnat_config_file}"
		var="CTARGET_${abi}"
		if [[ -n ${!var} ]] ; then
			echo "  ctarget=${!var}" >> "${D}/${gnat_config_file}"
		else
			var="CHOST_${abi}"
			if [[ -n ${!var} ]] ; then
				echo "  ctarget=${!var}" >> "${D}/${gnat_config_file}"
			else
				echo "  ctarget=${CTARGET}" >> "${D}/${gnat_config_file}"
			fi
		fi
	fi

	var="CFLAGS_${abi}"
	if [[ -n ${!var} ]] ; then
		echo "  cflags=${!var}" >> "${D}/${gnat_config_file}"
	fi
}

create_eselect_conf() {
	local abi

	dodir ${CONFIG_PATH}

	echo "[global]" > "${D}/${gnat_config_file}"
	echo "  version=${CTARGET}-${SLOT}" >> "${D}/${gnat_config_file}"
	echo "  binpath=${BINPATH}" >> "${D}/${gnat_config_file}"
	echo "  libexecpath=${LIBEXECPATH}" >> "${D}/${gnat_config_file}"
	echo "  ldpath=${LIBPATH}" >> "${D}/${gnat_config_file}"
	echo "  manpath=${DATAPATH}/man" >> "${D}/${gnat_config_file}"
	echo "  infopath=${DATAPATH}/info" >> "${D}/${gnat_config_file}"
	echo "  bin_prefix=${CTARGET}" >> "${D}/${gnat_config_file}"

	for abi in $(get_all_abis) ; do
		add_profile_eselect_conf "${gnat_config_file}" "${abi}"
	done
}

should_we_eselect_gnat() {
	# we only want to switch compilers if installing to / or /tmp/stage1root
	[[ ${ROOT} == "/" ]] || return 1

	# if the current config is invalid, we definitely want a new one
	# Note: due to bash quirkiness, the following must not be 1 line
	local curr_config
	curr_config=$(eselect --colour=no gnat show | grep ${CTARGET} | awk '{ print $1 }') || return 0
	[[ -z ${curr_config} ]] && return 0

	# The logic is basically "try to keep the same profile if possible"

	if [[ ${curr_config} == ${CTARGET}-${PN}-${SLOT} ]] ; then
		return 0
	else
		elog "The current gcc config appears valid, so it will not be"
		elog "automatically switched for you.  If you would like to"
		elog "switch to the newly installed gcc version, do the"
		elog "following:"
		echo
		elog "eselect gnat set <profile>"
		echo
		ebeep
		return 1
	fi
}

# active compiler selection, called from pkg_postinst
do_gnat_config() {
	eselect gnat set ${CTARGET}-${PN}-${SLOT} &> /dev/null

	elog "The following gnat profile has been activated:"
	elog "${CTARGET}-${PN}-${SLOT}"
	elog ""
	elog "The compiler has been installed as gnatgcc, and the coverage testing"
	elog "tool as gnatgcov."
	elog ""
	elog "Ada handling in Gentoo allows you to have multiple gnat variants"
	elog "installed in parallel and automatically manage Ada libs."
	elog "Please take a look at the Ada project page for some documentation:"
	elog "http://www.gentoo.org/proj/en/prog_lang/ada/index.xml"
}


# Taken straight from the toolchain.eclass. Only removed the "obsolete hunk"
#
# The purpose of this DISGUSTING gcc multilib hack is to allow 64bit libs
# to live in lib instead of lib64 where they belong, with 32bit libraries
# in lib32. This hack has been around since the beginning of the amd64 port,
# and we're only now starting to fix everything that's broken. Eventually
# this should go away.
#
# Travis Tilley <lv@gentoo.org> (03 Sep 2004)
#
disgusting_gcc_multilib_HACK() {
	local config
	local libdirs
	if has_multilib_profile ; then
		case $(tc-arch) in
			amd64)
				config="i386/t-linux64"
				libdirs="../$(get_abi_LIBDIR amd64) ../$(get_abi_LIBDIR x86)" \
			;;
			ppc64)
				config="rs6000/t-linux64"
				libdirs="../$(get_abi_LIBDIR ppc64) ../$(get_abi_LIBDIR ppc)" \
			;;
		esac
	else
		die "Your profile is no longer supported by portage."
	fi

	einfo "updating multilib directories to be: ${libdirs}"
	sed -i -e "s:^MULTILIB_OSDIRNAMES.*:MULTILIB_OSDIRNAMES = ${libdirs}:" "${S}"/gcc/config/${config}
}


#---->> pkg_* <<----
gnatbuild-r1_pkg_setup() {
	debug-print-function ${FUNCNAME} $@

	# Setup variables which would normally be in the profile
	if is_crosscompile ; then
		multilib_env ${CTARGET}
	fi

	# we dont want to use the installed compiler's specs to build gnat!
	unset GCC_SPECS
	unset LANGUAGES #265283
}

gnatbuild-r1_pkg_postinst() {
	if should_we_eselect_gnat; then
		do_gnat_config
	else
		eselect gnat update
	fi

	# if primary compiler list is empty, add this profile to the list, so
	# that users are not left without active compilers (making sure that
	# libs are getting built for at least one)
	elog
	. ${GnatCommon} || die "failed to source common code"
	if [[ ! -f ${PRIMELIST} ]] || [[ ! -s ${PRIMELIST} ]]; then
		echo "${gnat_profile}" > ${PRIMELIST}
		elog "The list of primary compilers was empty and got assigned ${gnat_profile}."
	fi
	elog "Please edit ${PRIMELIST} and list there gnat profiles intended"
	elog "for common use."
}


gnatbuild-r1_pkg_postrm() {
	# "eselect gnat update" now removes the env.d file if the corresponding
	# gnat profile was unmerged
	eselect gnat update
	elog "If you just unmerged the last gnat in this SLOT, your active gnat"
	elog "profile got unset. Please check what eselect gnat show tells you"
	elog "and set the desired profile"
}
#---->> pkg_* <<----

#---->> src_* <<----

# common unpack stuff
gnatbuild-r1_src_unpack() {
	debug-print-function ${FUNCNAME} $@

	[ -z "$1" ] &&  gnatbuild-r1_src_unpack all

	while [ "$1" ]; do
	case $1 in
		base_unpack)
			unpack ${A}
			pax-mark E $(find ${GNATBOOT} -name gnat1)

			cd "${S}"
			# patching gcc sources, following the toolchain
			# first, the common patches
			guess_patch_type_in_dir "${WORKDIR}"/patch
			EPATCH_MULTI_MSG="Applying common Gentoo patches ..." \
				epatch "${WORKDIR}"/patch
			guess_patch_type_in_dir "${WORKDIR}"/piepatch
			EPATCH_MULTI_MSG="Applying Gentoo PIE patches ..." \
				epatch "${WORKDIR}"/piepatch

			if [[ -d "${FILESDIR}"/patches ]] && [[ ! -z $(ls "${FILESDIR}"/patches/*.patch 2>/dev/null) ]] ; then
				EPATCH_MULTI_MSG="Applying local Gentoo patches ..." \
				epatch "${FILESDIR}"/patches/*.patch
			fi
			#
			# then per SLOT
			if [[ -d "${FILESDIR}"/patches/${SLOT} ]] && [[ ! -z $(ls "${FILESDIR}"/patches/${SLOT}/*.patch 2>/dev/null) ]] ; then
				EPATCH_MULTI_MSG="Applying SLOT-specific Gentoo patches ..." \
				epatch "${FILESDIR}"/patches/${SLOT}/*.patch
			fi

			# add hardening as per toolchain eclass
			make_gcc_hard

			# Replacing obsolete head/tail with POSIX compliant ones
			ht_fix_file */configure

#			if ! is_crosscompile && is_multilib && \
#				[[ ( $(tc-arch) == "amd64" || $(tc-arch) == "ppc64" ) && -z ${SKIP_MULTILIB_HACK} ]] ; then
#					disgusting_gcc_multilib_HACK || die "multilib hack failed"
#			fi

			# Fixup libtool to correctly generate .la files with portage
			cd "${S}"
			elibtoolize --portage --shallow --no-uclibc

			gnuconfig_update
			# update configure files
			einfo "Fixing misc issues in configure files"
			for f in $(grep -l 'autoconf version 2.13' $(find "${S}" -name configure)) ; do
				ebegin "  Updating ${f}"
				patch "${f}" "${FILESDIR}"/gcc-configure-LANG.patch >& "${T}"/configure-patch.log \
					|| eerror "Please file a bug about this"
				eend $?
			done

			# apply global slot/path patch
			EPATCH_MULTI_MSG="Adjusting default paths for gnat-gcc ..." \
			epatch "${FILESDIR}"/${PN}-4.9.3-make-default-paths-match-slot.patch
			sed -i -e "s|SLOT_MARKER|${BOOT_SLOT}|" "${S}"/gcc/Makefile.in

			[[ ${CHOST} == ${CTARGET} ]] && epatch "${FILESDIR}"/gcc-spec-env-r1.patch

#			this is only needed for gnat-gpl-4.1 and breaks for gnat-gcc, so
#			this block was moved to corresponding ebuild
#			pushd "${S}"/gnattools &> /dev/null
#				eautoconf
#			popd &> /dev/null
		;;

		common_prep)
			# Prepare the gcc source directory
			cd "${S}/gcc"
			touch cstamp-h.in
			touch ada/[es]info.h
			touch ada/nmake.ad[bs]
			# set the compiler name to gnatgcc
			for i in `find ada/ -name '*.ad[sb]'`; do \
				sed -i -e "s/\"gcc\"/\"gnatgcc\"/g" ${i}; \
			done
			# add -fPIC flag to shared libs for 3.4* backend
			if [ "3.4" == "${GCCBRANCH}" ] ; then
				cd ada
				epatch "${FILESDIR}"/gnat-Make-lang.in.patch
			fi

			# gcc 4.3 sources seem to have a common omission of $(DESTDIR),
			# that leads to make install trying to rm -f file on live system.
			# As we do not need this rm, we simply remove the whole line
			if [ "4.3" == "${GCCBRANCH}" ] ; then
				sed -i -e "/\$(RM) \$(bindir)/d" "${S}"/gcc/ada/Make-lang.in
			fi

			find "${S}" -name Makefile.in \
				-exec sed -i '/^pkgconfigdir/s:=.*:=$(toolexeclibdir)/pkgconfig:' {} +

			mkdir -p "${GNATBUILD}"
		;;

		all)
			gnatbuild-r1_src_unpack base_unpack common_prep
		;;
	esac
	shift
	done
}

# for now just dont run default configure
gnatbuild-r1_src_configure() {
	:
}

# it would be nice to split configure and make steps
# but both need to operate inside specially tuned evironment
# so just do sections for now (as in eclass section of handbook)
# sections are: configure, make-tools, bootstrap,
#  gnatlib_and_tools, gnatlib-shared
gnatbuild-r1_src_compile() {
	debug-print-function ${FUNCNAME} $@

	if [[ -z "$1" ]]; then
		gnatbuild-r1_src_compile all
		return $?
	fi

	if [[ "all" == "$1" ]]
	then # specialcasing "all" to avoid scanning sources unnecessarily
		gnatbuild-r1_src_compile configure make-tools \
			bootstrap gnatlib_and_tools gnatlib-shared

	else
		# Set some paths to our bootstrap compiler.
		export PATH="${GNATBOOT}/bin:${PATH}"
		# !ATTN! the bootstrap compilers have a very simplystic structure,
		# so many paths are not identical to the installed ones.
		# Plus it was simplified even more in new releases.
		if [[ ${BOOT_SLOT} > 4.1 ]] ; then
			case $(tc-arch) in
				arm)
					GNATLIB="${GNATBOOT}/lib/gcc/${BOOT_TARGET}/${BOOT_SLOT}"
					;;
				x86|amd64)
					GNATLIB="${GNATBOOT}/lib/gcc/${BOOT_TARGET}/${BOOT_VER}"
					;;
				*)
					GNATLIB="${GNATBOOT}/lib"
					;;
			esac
		else
			GNATLIB="${GNATBOOT}/lib/gnatgcc/${BOOT_TARGET}/${BOOT_SLOT}"
		fi

		export CC="${GNATBOOT}/bin/gnatgcc"
		export CXX="${GNATBOOT}/bin/gnatg++"
		export LDFLAGS="${LDFLAGS}"
		export CFLAGS="${CFLAGS}"
		export CXXFLAGS="${CFLAGS}"
		# CPATH is supposed to be applied for any language, thus
		# superceding either of C/CPLUS/OBJC_INCLUDE_PATHs
		export CPATH="${GNATLIB}/include"
		LIB_DIR="${GNATLIB}"
		LDFLAGS="${LDFLAGS} -L${GNATLIB}"

		# additional vars from gnuada and elsewhere
		export LIBRARY_PATH="${GNATLIB}"

		STDCXX_INCDIR="${LIBPATH}/include/g++-v${SLOT/\.*/}"

		export ADA_OBJECTS_PATH="${GNATLIB}/adalib"
		export ADA_INCLUDE_PATH="${GNATLIB}/adainclude"

		while [ "$1" ]; do
		case $1 in
			configure)
				debug-print-section configure

				# Configure gcc
				local confgcc
				confgcc="${confgcc} --host=${CHOST}"

				# some cross-compile logic from toolchain
				if is_crosscompile || tc-is-cross-compiler ; then
					confgcc="${confgcc} --target=${CTARGET}"
				fi
				[[ -n ${CBUILD} ]] && confgcc="${confgcc} --build=${CBUILD}"

				# Native Language Support
				if use nls ; then
					confgcc="${confgcc} --enable-nls --without-included-gettext"
				else
					confgcc="${confgcc} --disable-nls"
				fi

				# bug 586538: extra lto-wrapper dorks up system gcc
				confgcc="${confgcc} --disable-lto"

				# setup multilib abi stuff
				gcc-multilib-configure

				use hardened && confgcc="${confgcc} --enable-esp"

				# reasonably sane globals (from toolchain)
				# also disable mudflap and ssp
				confgcc="${confgcc} \
					--enable-languages="c,ada,c++" \
					--with-gcc \
					--with-system-zlib \
					--enable-obsolete \
					--enable-secureplt \
					--disable-werror \
					--enable-checking=release \
					--enable-libstdcxx-time \
					--disable-libmudflap \
					--disable-libssp \
					--disable-altivec \
					--disable-fixed-point \
					--disable-libgcj \
					--disable-libcilkrts \
					--disable-libquadmath \
					--enable-libsanitizer \
					--enable-targets=all \
					--with-bugurl=https://bugs.gentoo.org/ \
					--with-python-dir=${DATAPATH/$PREFIX/}/python"

				if in_iuse openmp ; then
					# Make sure target has pthreads support. #326757 #335883
					# There shouldn't be a chicken&egg problem here as openmp won't
					# build without a C library, and you can't build that w/out
					# already having a compiler ...
					if ! is_crosscompile || \
						$(tc-getCPP ${CTARGET}) -E - <<<"#include <pthread.h>" >& /dev/null
					then
						case $(tc-arch) in
							arm)
								confgcc="${confgcc} --disable-libgomp"
								;;
							*)
								if use openmp ; then
									confgcc="${confgcc} --enable-libgomp"
								else
									confgcc="${confgcc} --disable-libgomp"
								fi
								;;
						esac
					else
						# Force disable as the configure script can be dumb #359855
						confgcc="${confgcc} --disable-libgomp"
					fi
				else
					# For gcc variants where we don't want openmp (e.g. kgcc)
					confgcc="${confgcc} --disable-libgomp"
				fi

				# ACT's gnat-gpl does not like libada for whatever reason..
				if tc_version_is_at_least 4.2 ; then
					confgcc="${confgcc} --enable-libada"
#				else
#					einfo "ACT's gnat-gpl does not like libada, disabling"
#					confgcc="${confgcc} --disable-libada"
				fi

				# set some specifics available in later versions
				confgcc="${confgcc} --enable-shared"
				if tc_version_is_at_least 4.7 ; then
					einfo "setting gnat thread model"
					confgcc="${confgcc} --enable-threads=posix"
					confgcc="${confgcc} --enable-shared=boehm-gc,ada,libada"
				elif tc_version_is_at_least 4.3 ; then
					confgcc="${confgcc} --enable-threads=gnat"
					confgcc="${confgcc} --enable-shared=boehm-gc,ada,libada"
				else
					confgcc="${confgcc} --enable-threads=posix"
				fi

				# harfloat vs soft
				case $(tc-is-softfloat) in
				yes)    confgcc="${confgcc} --with-float=soft" ;;
				softfp) confgcc="${confgcc} --with-float=softfp" ;;
				*)
					# If they've explicitly opt-ed in, do hardfloat,
					# otherwise let the gcc default kick in.
					case ${CTARGET//_/-} in
					*-hardfloat-*|*eabihf) confgcc="${confgcc} --with-float=hard" ;;
					esac
				esac

				# multilib and arch support
				case $(tc-arch) in
				arm)
					local a arm_arch=${CTARGET%%-*}
					# Remove trailing endian variations first: eb el be bl b l
					for a in e{b,l} {b,l}e b l ; do
						if [[ ${arm_arch} == *${a} ]] ; then
							arm_arch=${arm_arch%${a}}
							break
						fi
					done
					# Convert armv7{a,r,m} to armv7-{a,r,m}
					[[ ${arm_arch} == armv7? ]] && arm_arch=${arm_arch/7/7-}
					# See if this is a valid --with-arch flag
					if (srcdir=${S}/gcc target=${CTARGET} with_arch=${arm_arch};
					    . "${srcdir}"/config.gcc) &>/dev/null
					then
						confgcc="${confgcc} --with-arch=${arm_arch}"
					fi

					# Make default mode thumb for microcontroller classes #418209
					[[ ${arm_arch} == *-m ]] && confgcc="${confgcc} --with-mode=thumb"

					# Enable hardvfp
					if [[ $(tc-is-softfloat) == "no" ]] && \
					   [[ ${CTARGET} == armv[67]* ]]
					then
						# Follow the new arm hardfp distro standard by default
						confgcc="${confgcc} --with-float=hard"
						case ${CTARGET} in
						armv6*) confgcc="${confgcc} --with-fpu=vfp" ;;
						armv7*) confgcc="${confgcc} --with-fpu=vfpv3-d16" ;;
						esac
					fi
					;;
				mips)
					# Add --with-abi flags to set default ABI
					confgcc="${confgcc} --with-abi=$(gcc-abi-map ${TARGET_DEFAULT_ABI})"
					;;
				ppc)
					# Set up defaults based on current CFLAGS
					is-flagq -mfloat-gprs=double && confgcc="${confgcc} --enable-e500-double"
					[[ ${CTARGET//_/-} == *-e500v2-* ]] && confgcc="${confgcc} --enable-e500-double"
					;;
				amd64)
					if is_multilib ; then
						confgcc="${confgcc} --enable-multilib"
						if has x32 $(get_all_abis TARGET) ; then
							confgcc="${confgcc} --with-abi=$(gcc-abi-map ${TARGET_DEFAULT_ABI})"
						fi
					else
						confgcc="${confgcc} --disable-multilib"
					fi
					;;
				x86)
					confgcc="${confgcc} --with-arch=${CTARGET%%-*}"
					confgcc="${confgcc} --disable-multilib"
					;;
				esac

				# __cxa_atexit is "essential for fully standards-compliant handling of
				# destructors", but apparently requires glibc.
				if [[ ${CTARGET} == *-gnu* ]] ; then
					confgcc="${confgcc} --enable-__cxa_atexit"
					confgcc="${confgcc} --enable-clocale=gnu"
				fi

				export gcc_cv_lto_plugin=1  # okay to build, default to opt-in
				export gcc_cv_prog_makeinfo_modern=no
				export ac_cv_have_x='have_x=yes ac_x_includes= ac_x_libraries='
				use hardened && export gcc_cv_libc_provides_ssp=yes

				# need to strip graphite/lto flags or we'll get the
				# dreaded C compiler cannot create executables...
				# error.
#				filter-flags -floop-interchange -floop-strip-mine -floop-block
#				filter-flags -fuse-linker-plugin -flto*
				strip-flags
				replace-flags -O? -O2
				filter-flags '-mabi*' -m31 -m32 -m64
				filter-flags -frecord-gcc-switches
				filter-flags -mno-rtm -mno-htm

				# gold linker barfs on some arches/configs :/
				#tc-ld-is-gold && tc-ld-disable-gold

				case $(tc-arch) in
					amd64|x86)
						filter-flags '-mcpu=*'
						;;
					*)
						;;
				esac

#				strip-unsupported-flags

				STAGE1_CFLAGS="${CFLAGS} -fPIC"
				use hardened && STAGE1_CFLAGS="-O2 -fPIC"
				BOOT_CFLAGS="$(get_abi_CFLAGS ${TARGET_DEFAULT_ABI}) ${CFLAGS} -fPIC"
				is_crosscompile && BOOT_CFLAGS="-O2 -fPIC"

				einfo "Environment vars:
	CC=${CC},
	CXX=${CXX},
	CTARGET=${CTARGET}
	ABI=${TARGET_DEFAULT_ABI},
	TARGET_ABI=${TARGET_ABI}.
	TARGET_MULTILIB_ABIS=${TARGET_MULTILIB_ABIS},
	TARGET_DEFAULT_ABI=${TARGET_DEFAULT_ABI},
	GCC_ABI=$(gcc-abi-map ${TARGET_DEFAULT_ABI})
	ADA_OBJECTS_PATH=${ADA_OBJECTS_PATH},
	ADA_INCLUDE_PATH=${ADA_INCLUDE_PATH},
	PATH=${PATH}"

				confgcc="${confgcc} ${EXTRA_ECONF}"
				einfo "Configuring with confgcc=${confgcc}"

				pushd "${GNATBUILD}" > /dev/null
				CC="${CC}" CXX="${CXX}" \
					LDFLAGS="${LDFLAGS}" \
					CFLAGS="${CFLAGS}" \
					CXXFLAGS="${CFLAGS}" \
					"${S}"/configure \
					--prefix="${PREFIX}" \
					--bindir="${BINPATH}" \
					--includedir="${INCLUDEPATH}" \
					--datadir="${DATAPATH}" \
					--mandir="${DATAPATH}"/man \
					--infodir="${DATAPATH}"/info \
					--with-gxx-include-dir="${STDCXX_INCDIR}" \
					--with-pkgversion="Gentoo Hardened ${GNATRELEASE} p${PATCH_VER}, pie-${PIE_VER}" \
					${confgcc} || die "configure failed"
				popd > /dev/null
			;;

			make-tools)
				debug-print-section make-tools
				# Compile helper tools
				cd "${GNATBOOT}"
				cp "${S}"/gcc/ada/xtreeprs.adb .
				cp "${S}"/gcc/ada/xsinfo.adb   .
				cp "${S}"/gcc/ada/xeinfo.adb   .
				cp "${S}"/gcc/ada/xnmake.adb   .
				cp "${S}"/gcc/ada/xutil.ad{s,b}   .
				if (( ${GNATMINOR} > 5 )) ; then
					cp "${S}"/gcc/ada/einfo.ad{s,b}  .
					cp "${S}"/gcc/ada/csinfo.adb  .
					cp "${S}"/gcc/ada/ceinfo.adb  .
				fi

				gnatmake xtreeprs  && \
				gnatmake xsinfo  && \
				gnatmake xeinfo  && \
				gnatmake xnmake || die "building helper tools"

				mv xeinfo xnmake xsinfo xtreeprs bin/
			;;

			bootstrap)
				debug-print-section bootstrap
				# and, finally, the build itself
				# do we need this?  STAGE1_CFLAGS="${CFLAGS}"
				# or this?  bootstrap-lean
				# removing both to try --disable-bootstrap
				pushd "${GNATBUILD}" >/dev/null

				emake \
					LDFLAGS="${LDFLAGS}" \
					LIBPATH="${LIBPATH}" \
					CC="${CC}" CXX="${CXX}" \
					STAGE1_CFLAGS="${STAGE1_CFLAGS}" \
					LIBRARY_VERSION="${SLOT}" \
					BOOT_CFLAGS="${BOOT_CFLAGS}" \
					bootstrap-lean \
					|| die "bootstrap failed"

				popd >/dev/null
			;;

			gnatlib_and_tools)
				debug-print-section gnatlib_and_tools
				einfo "building gnatlib_and_tools"
				cd "${GNATBUILD}"
				emake -j1 -C gcc gnatlib_and_tools || \
					die "gnatlib_and_tools failed"
			;;

			gnatlib-shared)
				debug-print-section gnatlib-shared
				einfo "building shared lib"
				cd "${GNATBUILD}"
				rm -f gcc/ada/rts/*.{o,ali} || die
				#otherwise make tries to reuse already compiled (without -fPIC) objs..
				emake -j1 -C gcc gnatlib-shared LIBRARY_VERSION="${SLOT}" || \
					die "gnatlib-shared failed"
			;;

		esac
		shift
		done # while
	fi   # "all" == "$1"
}
# -- end gnatbuild-r1_src_compile


gnatbuild-r1_src_install() {
	debug-print-function ${FUNCNAME} $@

	if [[ -z "$1" ]] ; then
		gnatbuild-r1_src_install all
		return $?
	fi

	while [ "$1" ]; do
	case $1 in
	install) # runs provided make install
		debug-print-section install

		# Looks like we need an access to the bootstrap compiler here too
		# as gnat apparently wants to compile something during the installation
		# The spotted obuser was xgnatugn, used to process gnat_ugn_urw.texi,
		# during preparison of the docs.
		export PATH="${GNATBOOT}/bin:${PATH}"
		if [[ ${BOOT_SLOT} > 4.1 ]] ; then
			GNATLIB="${GNATBOOT}/lib"
		elif [[ ${BOOT_SLOT} > 4.8 ]] ; then
			GNATLIB="${GNATBOOT}/lib/gnatgcc/${BOOT_TARGET}/${BOOT_VER}"
		else
			GNATLIB="${GNATBOOT}/lib/gnatgcc/${BOOT_TARGET}/${BOOT_SLOT}"
		fi

		export CC="${GNATBOOT}/bin/gnatgcc"
		#export INCLUDE_DIR="${GNATLIB}/include"
		#export C_INCLUDE_PATH="${GNATLIB}/include"
		#export CPLUS_INCLUDE_PATH="${GNATLIB}/include"
		export ADA_OBJECTS_PATH="${GNATLIB}/adalib"
		export ADA_INCLUDE_PATH="${GNATLIB}/adainclude"

		# Do not allow symlinks in /usr/lib/gcc/${CHOST}/${MY_PV}/include as
		# this can break the build.
		find "${GNATBUILD}"/\*gcc/include/ -type l -delete

		# Remove generated headers, as they can cause things to break
		# (ncurses, openssl, etc). (from toolchain.eclass)
		for x in $(find "${WORKDIR}"/build/gcc/include/ -name '*.h') ; do
			grep -q 'It has been auto-edited by fixincludes from' "${x}" \
				&& rm -f "${x}"
		done


		cd "${GNATBUILD}"
		make -j1 DESTDIR="${D}" install || die

		find "${D}" -name install-tools -prune -type d -exec rm -rf "{}" \;
		find "${D}" -name libiberty.a -delete

		# Disable RANDMMAP so PCH works. #301299
		pax-mark r "${D}${LIBEXECPATH}"/{gnat1,cc1,cc1plus}

		# Quiet QA warnings, wait for adacore exec stack patch in gcc 7
		#   (note: needs testing with hardened emulate trampolines)
		#if use hardened ; then
		#	pax-mark Emr "${D}"${BINPATH}/{gnatmake,gnatname,gnatls,gnatclean,gnat}
		#else
		#	export QA_EXECSTACK="${BINPATH:1}/gnatls ${BINPATH:1}/gnatname
		#		${BINPATH:1}/gnatmake ${BINPATH:1}/gnatclean ${BINPATH:1}/gnat
		#		${LIBEXECPATH:1}/gnat1 ${LIBPATH:1}/adalib/libgnat-${SLOT}.so"
		#fi
#		export QA_EXECSTACK="${BINPATH:1}/gnatls ${BINPATH:1}/gnatname
#			${BINPATH:1}/gnatmake ${BINPATH:1}/gnatclean ${BINPATH:1}/gnat"

		use hardened && pax-mark E "${D}${BINPATH}"/{gnatmake,gnatname,gnatls,gnatclean,gnat}

		if use doc ; then
			if (( $(bc <<< "${GNATBRANCH} > 4.3") )) ; then
				#make a convenience info link
				ewarn "Yay!  Math works."
				dosym gnat_ugn.info ${DATAPATH}/info/gnat.info
			fi
		fi
		;;

	move_libs)
		debug-print-section move_libs

		# first we need to remove some stuff to make moving easier
		#rm -rf "${D}${LIBPATH}"/{32,include}
		# gcc insists on installing libs in its own place
		cp -a -t "${D}${LIBPATH}"/ "${D}${PREFIX}"/lib/gcc/"${CTARGET}/${GCCRELEASE}"/*
		cp -a -t "${D}${LIBEXECPATH}"/ "${D}${PREFIX}"/libexec/gcc/"${CTARGET}/${GCCRELEASE}"/*
		rm -rf "${D}${PREFIX}"/libexec/gcc

		# libgcc_s  and, with gcc>=4.0, other libs get installed in multilib specific locations by gcc
		# we pull everything together to simplify working environment
		if is_multilib ; then
			case $(tc-arch) in
				amd64)
					cp -a -t "${D}${LIBPATH}"/ "${D}${PREFIX}"/lib/"${PN}/${CTARGET}/${SLOT}"/*
					mv -t "${D}${LIBPATH}"/32/ "${D}${PREFIX}"/lib32/*
					mv -t "${D}${LIBPATH}"/ "${D}${PREFIX}"/lib64/lib*
					rm -rf "${D}${PREFIX}"/lib "${D}${PREFIX}"/lib32
				;;
				ppc64)
					# not supported yet, will have to be adjusted when we
					# actually build gnat for that arch
				;;
			esac
		else
			# x86 cleanup (maybe arm)
			mv -t "${D}${LIBPATH}"/ "${D}${PREFIX}/lib/gcc/${CTARGET}/${GCCRELEASE}"/*
			mv -t "${D}${LIBPATH}"/ "${D}${PREFIX}"/lib/lib*
			#mv -t "${D}${LIBPATH}"/include/ "${D}${LIBPATH}"/gcc/"${CTARGET}/${GCCRELEASE}"/include/*
			rm -rf "${D}${PREFIX}"/lib/gcc
			rm -rf "${D}${LIBPATH}"/gcc
		fi

		local py gdbdir=/usr/share/gdb/auto-load${LIBPATH/\/lib\//\/$(get_libdir)\/}
		pushd "${D}${LIBPATH}" >/dev/null
		for py in $(find . -name '*-gdb.py') ; do
			local multidir=${py%/*}
			insinto "${gdbdir}/${multidir}"
			sed -i "/^libdir =/s:=.*:= '${LIBPATH}/${multidir}':" "${py}" || die
			doins "${py}" || die
			rm "${py}" || die
		done
		popd >/dev/null
		;;

	cleanup)
		debug-print-section cleanup

		# force gnatgcc to use its own specs - versions prior to 3.4.6 read specs
		# from system gcc location. Do the simple wrapper trick for now
		# !ATTN! change this if eselect-gnat starts to follow eselect-compiler
		cd "${D}${BINPATH}"
		if [[ ${GCCVER} < 3.4.6 ]] ; then
			# gcc 4.1 uses builtin specs. What about 4.0?
			mv gnatgcc gnatgcc_2wrap
			cat > gnatgcc << EOF
#! /bin/bash
# wrapper to cause gnatgcc read appropriate specs and search for the right .h
# files (in case no matching gcc is installed)
BINDIR=\$(dirname \$0)
# The paths in the next line have to be absolute, as gnatgcc may be called from
# any location
\${BINDIR}/gnatgcc_2wrap -specs="${LIBPATH}/specs" -I"${LIBPATH}/include" \$@
EOF
			chmod a+x gnatgcc
		else
			local i
			for i in cpp gcc gcov c++ g++ ; do
				ln -s ${i} gnat${i}
			done
		fi

		# earlier gnat's generate some Makefile's at generic location, need to
		# move to avoid collisions
		[ -f "${D}${PREFIX}"/share/gnat/Makefile.generic ] &&
			mv "${D}${PREFIX}"/share/gnat/Makefile.* "${D}${DATAPATH}"

		rm -rf "${D}${LIBPATH}"/install-tools "${D}${LIBEXECPATH}"/install-tools

		# remove duplicate docs
		rm -rf  "${D}${DATAPATH}"/info
		rm -rf "${D}${DATAPATH}"/man

		# fix .la path for lto plugin
		[ -f "${D}${LIBEXECPATH}"/liblto_plugin.la ] &&
			sed -i -e \
				"/libdir=/c\libdir='${LIBEXECPATH}'" \
				"${D}${LIBEXECPATH}"/liblto_plugin.la

		# use gid of 0 because some stupid ports don't have
		# the group 'root' set to gid 0 (toolchain.eclass)
		chown -R root:0 "${D}${LIBPATH}" 2>/dev/null

		# add hardening spec stuff
		if use hardened ; then
			insinto "${LIBPATH}"
			doins "${WORKDIR}"/specs/*.specs || die "failed to install specs"
		fi
		;;

	prep_env)
		# instead of putting junk under /etc/env.d/gnat we recreate env files as
		# needed with eselect
		create_eselect_conf
		;;

	all)
		# remove the move to test new install paths # move_libs
		gnatbuild-r1_src_install install move_libs cleanup prep_env
		;;
	esac
	shift
	done # while
}
# -- end gnatbuild-r1_src_install