xref: /freebsd/contrib/bc/configure (revision 3aa99676b43a74a61fae17e19fd554e1937fa746)
1#! /bin/sh
2#
3# SPDX-License-Identifier: BSD-2-Clause
4#
5# Copyright (c) 2018-2020 Gavin D. Howard and contributors.
6#
7# Redistribution and use in source and binary forms, with or without
8# modification, are permitted provided that the following conditions are met:
9#
10# * Redistributions of source code must retain the above copyright notice, this
11#   list of conditions and the following disclaimer.
12#
13# * Redistributions in binary form must reproduce the above copyright notice,
14#   this list of conditions and the following disclaimer in the documentation
15#   and/or other materials provided with the distribution.
16#
17# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
21# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27# POSSIBILITY OF SUCH DAMAGE.
28#
29
30script="$0"
31scriptdir=$(dirname "$script")
32script=$(basename "$script")
33
34. "$scriptdir/functions.sh"
35
36usage() {
37
38	if [ $# -gt 0 ]; then
39
40		_usage_val=1
41
42		printf "%s\n\n" "$1"
43
44	else
45		_usage_val=0
46	fi
47
48	printf 'usage: %s -h\n' "$script"
49	printf '       %s --help\n' "$script"
50	printf '       %s [-bD|-dB|-c] [-EfgGHMNPT] [-O OPT_LEVEL] [-k KARATSUBA_LEN]\n' "$script"
51	printf '       %s \\\n' "$script"
52	printf '           [--bc-only --disable-dc|--dc-only --disable-bc|--coverage]      \\\n'
53	printf '           [--debug --disable-extra-math --disable-generated-tests]        \\\n'
54	printf '           [--disable-history --disable-man-pages --disable-nls]           \\\n'
55	printf '           [--disable-prompt --disable-strip]                              \\\n'
56	printf '           [--opt=OPT_LEVEL] [--karatsuba-len=KARATSUBA_LEN]               \\\n'
57	printf '           [--prefix=PREFIX] [--bindir=BINDIR] [--datarootdir=DATAROOTDIR] \\\n'
58	printf '           [--datadir=DATADIR] [--mandir=MANDIR] [--man1dir=MAN1DIR]       \\\n'
59	printf '           [--force]                                                       \\\n'
60	printf '\n'
61	printf '    -b, --bc-only\n'
62	printf '        Build bc only. It is an error if "-d", "--dc-only", "-B", or "--disable-bc"\n'
63	printf '        are specified too.\n'
64	printf '    -B, --disable-bc\n'
65	printf '        Disable bc. It is an error if "-b", "--bc-only", "-D", or "--disable-dc"\n'
66	printf '        are specified too.\n'
67	printf '    -c, --coverage\n'
68	printf '        Generate test coverage code. Requires gcov and regcovr.\n'
69	printf '        It is an error if either "-b" ("-D") or "-d" ("-B") is specified.\n'
70	printf '        Requires a compiler that use gcc-compatible coverage options\n'
71	printf '    -d, --dc-only\n'
72	printf '        Build dc only. It is an error if "-b", "--bc-only", "-D", or "--disable-dc"\n'
73	printf '        are specified too.\n'
74	printf '    -D, --disable-dc\n'
75	printf '        Disable dc. It is an error if "-d", "--dc-only" "-B", or "--disable-bc"\n'
76	printf '        are specified too.\n'
77	printf '    -E, --disable-extra-math\n'
78	printf '        Disable extra math. This includes: "$" operator (truncate to integer),\n'
79	printf '        "@" operator (set number of decimal places), and r(x, p) (rounding\n'
80	printf '        function). Additionally, this option disables the extra printing\n'
81	printf '        functions in the math library.\n'
82	printf '    -f, --force\n'
83	printf '        Force use of all enabled options, even if they do not work. This\n'
84	printf '        option is to allow the maintainer a way to test that certain options\n'
85	printf '        are not failing invisibly. (Development only.)'
86	printf '    -g, --debug\n'
87	printf '        Build in debug mode. Adds the "-g" flag, and if there are no\n'
88	printf '        other CFLAGS, and "-O" was not given, this also adds the "-O0"\n'
89	printf '        flag. If this flag is *not* given, "-DNDEBUG" is added to CPPFLAGS\n'
90	printf '        and a strip flag is added to the link stage.\n'
91	printf '    -G, --disable-generated-tests\n'
92	printf '        Disable generating tests. This is for platforms that do not have a\n'
93	printf '        GNU bc-compatible bc to generate tests.\n'
94	printf '    -h, --help\n'
95	printf '        Print this help message and exit.\n'
96	printf '    -H, --disable-history\n'
97	printf '        Disable history.\n'
98	printf '    -k KARATSUBA_LEN, --karatsuba-len KARATSUBA_LEN\n'
99	printf '        Set the karatsuba length to KARATSUBA_LEN (default is 64).\n'
100	printf '        It is an error if KARATSUBA_LEN is not a number or is less than 16.\n'
101	printf '    -M, --disable-man-pages\n'
102	printf '        Disable installing manpages.\n'
103	printf '    -N, --disable-nls\n'
104	printf '        Disable POSIX locale (NLS) support.\n'
105	printf '    -O OPT_LEVEL, --opt OPT_LEVEL\n'
106	printf '        Set the optimization level. This can also be included in the CFLAGS,\n'
107	printf '        but it is provided, so maintainers can build optimized debug builds.\n'
108	printf '        This is passed through to the compiler, so it must be supported.\n'
109	printf '    -P, --disable-prompt\n'
110	printf '        Disables the prompt in the built bc. The prompt will never show up,\n'
111	printf '        or in other words, it will be permanently disabled and cannot be\n'
112	printf '        enabled.\n'
113	printf '    -T, --disable-strip\n'
114	printf '        Disable stripping symbols from the compiled binary or binaries.\n'
115	printf '        Stripping symbols only happens when debug mode is off.\n'
116	printf '    --prefix PREFIX\n'
117	printf '        The prefix to install to. Overrides "$PREFIX" if it exists.\n'
118	printf '        If PREFIX is "/usr", install path will be "/usr/bin".\n'
119	printf '        Default is "/usr/local".\n'
120	printf '    --bindir BINDIR\n'
121	printf '        The directory to install binaries. Overrides "$BINDIR" if it exists.\n'
122	printf '        Default is "$PREFIX/bin".\n'
123	printf '    --datarootdir DATAROOTDIR\n'
124	printf '        The root location for data files. Overrides "$DATAROOTDIR" if it exists.\n'
125	printf '        Default is "$PREFIX/share".\n'
126	printf '    --datadir DATADIR\n'
127	printf '        The location for data files. Overrides "$DATADIR" if it exists.\n'
128	printf '        Default is "$DATAROOTDIR".\n'
129	printf '    --mandir MANDIR\n'
130	printf '        The location to install manpages to. Overrides "$MANDIR" if it exists.\n'
131	printf '        Default is "$DATADIR/man".\n'
132	printf '    --man1dir MAN1DIR\n'
133	printf '        The location to install Section 1 manpages to. Overrides "$MAN1DIR" if\n'
134	printf '        it exists. Default is "$MANDIR/man1".\n'
135	printf '\n'
136	printf 'In addition, the following environment variables are used:\n'
137	printf '\n'
138	printf '    CC           C compiler. Must be compatible with POSIX c99. If there is a\n'
139	printf '                 space in the basename of the compiler, the items after the\n'
140	printf '                 first space are assumed to be compiler flags, and in that case,\n'
141	printf '                 the flags are automatically moved into CFLAGS. Default is\n'
142	printf '                 "c99".\n'
143	printf '    HOSTCC       Host C compiler. Must be compatible with POSIX c99. If there is\n'
144	printf '                 a space in the basename of the compiler, the items after the\n'
145	printf '                 first space are assumed to be compiler flags, and in the case,\n'
146	printf '                 the flags are automatically moved into HOSTCFLAGS. Default is\n'
147	printf '                 "$CC".\n'
148	printf '    HOST_CC      Same as HOSTCC. If HOSTCC also exists, it is used.\n'
149	printf '    CFLAGS       C compiler flags.\n'
150	printf '    HOSTCFLAGS   CFLAGS for HOSTCC. Default is "$CFLAGS".\n'
151	printf '    HOST_CFLAGS  Same as HOST_CFLAGS. If HOST_CFLAGS also exists, it is used.\n'
152	printf '    CPPFLAGS     C preprocessor flags. Default is "".\n'
153	printf '    LDFLAGS      Linker flags. Default is "".\n'
154	printf '    PREFIX       The prefix to install to. Default is "/usr/local".\n'
155	printf '                 If PREFIX is "/usr", install path will be "/usr/bin".\n'
156	printf '    BINDIR       The directory to install binaries. Default is "$PREFIX/bin".\n'
157	printf '    DATAROOTDIR  The root location for data files. Default is "$PREFIX/share".\n'
158	printf '    DATADIR      The location for data files. Default is "$DATAROOTDIR".\n'
159	printf '    MANDIR       The location to install manpages to. Default is "$DATADIR/man".\n'
160	printf '    MAN1DIR      The location to install Section 1 manpages to. Default is\n'
161	printf '                 "$MANDIR/man1".\n'
162	printf '    NLSPATH      The location to install locale catalogs to. Must be an absolute\n'
163	printf '                 path (or contain one). This is treated the same as the POSIX\n'
164	printf '                 definition of $NLSPATH (see POSIX environment variables for\n'
165	printf '                 more information). Default is "/usr/share/locale/%%L/%%N".\n'
166	printf '    EXECSUFFIX   The suffix to append to the executable names, used to not\n'
167	printf '                 interfere with other installed bc executables. Default is "".\n'
168	printf '    EXECPREFIX   The prefix to append to the executable names, used to not\n'
169	printf '                 interfere with other installed bc executables. Default is "".\n'
170	printf '    DESTDIR      For package creation. Default is "". If it is empty when\n'
171	printf '                 `%s` is run, it can also be passed to `make install`\n' "$script"
172	printf '                 later as an environment variable. If both are specified,\n'
173	printf '                 the one given to `%s` takes precedence.\n' "$script"
174	printf '    LONG_BIT     The number of bits in a C `long` type. This is mostly for the\n'
175	printf '                 embedded space since this `bc` uses `long`s internally for\n'
176	printf '                 overflow checking. In C99, a `long` is required to be 32 bits.\n'
177	printf '                 For most normal desktop systems, setting this is unnecessary,\n'
178	printf '                 except that 32-bit platforms with 64-bit longs may want to set\n'
179	printf '                 it to `32`. Default is the default of `LONG_BIT` for the target\n'
180	printf '                 platform. Minimum allowed is `32`. It is a build time error if\n'
181	printf '                 the specified value of `LONG_BIT` is greater than the default\n'
182	printf '                 value of `LONG_BIT` for the target platform.\n'
183	printf '    GEN_HOST     Whether to use `gen/strgen.c`, instead of `gen/strgen.sh`, to\n'
184	printf '                 produce the C files that contain the help texts as well as the\n'
185	printf '                 math libraries. By default, `gen/strgen.c` is used, compiled by\n'
186	printf '                 "$HOSTCC" and run on the host machine. Using `gen/strgen.sh`\n'
187	printf '                 removes the need to compile and run an executable on the host\n'
188	printf '                 machine since `gen/strgen.sh` is a POSIX shell script. However,\n'
189	printf '                 `gen/lib2.bc` is perilously close to 4095 characters, the max\n'
190	printf '                 supported length of a string literal in C99 (and it could be\n'
191	printf '                 added to in the future), and `gen/strgen.sh` generates a string\n'
192	printf '                 literal instead of an array, as `gen/strgen.c` does. For most\n'
193	printf '                 production-ready compilers, this limit probably is not\n'
194	printf '                 enforced, but it could be. Both options are still available for\n'
195	printf '                 this reason. If you are sure your compiler does not have the\n'
196	printf '                 limit and do not want to compile and run a binary on the host\n'
197	printf '                 machine, set this variable to "0". Any other value, or a\n'
198	printf '                 non-existent value, will cause the build system to compile and\n'
199	printf '                 run `gen/strgen.c`. Default is "".\n'
200	printf '    GEN_EMU      Emulator to run string generator code under (leave empty if not\n'
201	printf '                 necessary). This is not necessary when using `gen/strgen.sh`.\n'
202	printf '                 Default is "".\n'
203	printf '\n'
204	printf 'WARNING: even though `configure.sh` supports both option types, short and\n'
205	printf 'long, it does not support handling both at the same time. Use only one type.\n'
206
207	exit "$_usage_val"
208}
209
210replace_ext() {
211
212	if [ "$#" -ne 3 ]; then
213		err_exit "Invalid number of args to $0"
214	fi
215
216	_replace_ext_file="$1"
217	_replace_ext_ext1="$2"
218	_replace_ext_ext2="$3"
219
220	_replace_ext_result=${_replace_ext_file%.$_replace_ext_ext1}.$_replace_ext_ext2
221
222	printf '%s\n' "$_replace_ext_result"
223}
224
225replace_exts() {
226
227	if [ "$#" -ne 3 ]; then
228		err_exit "Invalid number of args to $0"
229	fi
230
231	_replace_exts_files="$1"
232	_replace_exts_ext1="$2"
233	_replace_exts_ext2="$3"
234
235	for _replace_exts_file in $_replace_exts_files; do
236		_replace_exts_new_name=$(replace_ext "$_replace_exts_file" "$_replace_exts_ext1" "$_replace_exts_ext2")
237		_replace_exts_result="$_replace_exts_result $_replace_exts_new_name"
238	done
239
240	printf '%s\n' "$_replace_exts_result"
241}
242
243replace() {
244
245	if [ "$#" -ne 3 ]; then
246		err_exit "Invalid number of args to $0"
247	fi
248
249	_replace_str="$1"
250	_replace_needle="$2"
251	_replace_replacement="$3"
252
253	substring_replace "$_replace_str" "%%$_replace_needle%%" "$_replace_replacement"
254}
255
256gen_file_lists() {
257
258	if [ "$#" -lt 3 ]; then
259		err_exit "Invalid number of args to $0"
260	fi
261
262	_gen_file_lists_contents="$1"
263	shift
264
265	_gen_file_lists_filedir="$1"
266	shift
267
268	_gen_file_lists_typ="$1"
269	shift
270
271	# If there is an extra argument, and it
272	# is zero, we keep the file lists empty.
273	if [ "$#" -gt 0 ]; then
274		_gen_file_lists_use="$1"
275	else
276		_gen_file_lists_use="1"
277	fi
278
279	_gen_file_lists_needle_src="${_gen_file_lists_typ}SRC"
280	_gen_file_lists_needle_obj="${_gen_file_lists_typ}OBJ"
281	_gen_file_lists_needle_gcda="${_gen_file_lists_typ}GCDA"
282	_gen_file_lists_needle_gcno="${_gen_file_lists_typ}GCNO"
283
284	if [ "$_gen_file_lists_use" -ne 0 ]; then
285
286		_gen_file_lists_replacement=$(cd "$_gen_file_lists_filedir" && find . ! -name . -prune -name "*.c" | cut -d/ -f2 | sed "s@^@$_gen_file_lists_filedir/@g" | tr '\n' ' ')
287		_gen_file_lists_contents=$(replace "$_gen_file_lists_contents" "$_gen_file_lists_needle_src" "$_gen_file_lists_replacement")
288
289		_gen_file_lists_replacement=$(replace_exts "$_gen_file_lists_replacement" "c" "o")
290		_gen_file_lists_contents=$(replace "$_gen_file_lists_contents" "$_gen_file_lists_needle_obj" "$_gen_file_lists_replacement")
291
292		_gen_file_lists_replacement=$(replace_exts "$_gen_file_lists_replacement" "o" "gcda")
293		_gen_file_lists_contents=$(replace "$_gen_file_lists_contents" "$_gen_file_lists_needle_gcda" "$_gen_file_lists_replacement")
294
295		_gen_file_lists_replacement=$(replace_exts "$_gen_file_lists_replacement" "gcda" "gcno")
296		_gen_file_lists_contents=$(replace "$_gen_file_lists_contents" "$_gen_file_lists_needle_gcno" "$_gen_file_lists_replacement")
297
298	else
299		_gen_file_lists_contents=$(replace "$_gen_file_lists_contents" "$_gen_file_lists_needle_src" "")
300		_gen_file_lists_contents=$(replace "$_gen_file_lists_contents" "$_gen_file_lists_needle_obj" "")
301		_gen_file_lists_contents=$(replace "$_gen_file_lists_contents" "$_gen_file_lists_needle_gcda" "")
302		_gen_file_lists_contents=$(replace "$_gen_file_lists_contents" "$_gen_file_lists_needle_gcno" "")
303	fi
304
305	printf '%s\n' "$_gen_file_lists_contents"
306}
307
308bc_only=0
309dc_only=0
310coverage=0
311karatsuba_len=32
312debug=0
313hist=1
314extra_math=1
315optimization=""
316generate_tests=1
317install_manpages=1
318nls=1
319prompt=1
320force=0
321strip_bin=1
322
323while getopts "bBcdDEfgGhHk:MNO:PST-" opt; do
324
325	case "$opt" in
326		b) bc_only=1 ;;
327		B) dc_only=1 ;;
328		c) coverage=1 ;;
329		d) dc_only=1 ;;
330		D) bc_only=1 ;;
331		E) extra_math=0 ;;
332		f) force=1 ;;
333		g) debug=1 ;;
334		G) generate_tests=0 ;;
335		h) usage ;;
336		H) hist=0 ;;
337		k) karatsuba_len="$OPTARG" ;;
338		M) install_manpages=0 ;;
339		N) nls=0 ;;
340		O) optimization="$OPTARG" ;;
341		P) prompt=0 ;;
342		T) strip_bin=0 ;;
343		-)
344			arg="$1"
345			arg="${arg#--}"
346			LONG_OPTARG="${arg#*=}"
347			case $arg in
348				help) usage ;;
349				bc-only) bc_only=1 ;;
350				dc-only) dc_only=1 ;;
351				coverage) coverage=1 ;;
352				debug) debug=1 ;;
353				force) force=1 ;;
354				prefix=?*) PREFIX="$LONG_OPTARG" ;;
355				prefix)
356					if [ "$#" -lt 2 ]; then
357						usage "No argument given for '--$arg' option"
358					fi
359					PREFIX="$2"
360					shift ;;
361				bindir=?*) BINDIR="$LONG_OPTARG" ;;
362				bindir)
363					if [ "$#" -lt 2 ]; then
364						usage "No argument given for '--$arg' option"
365					fi
366					BINDIR="$2"
367					shift ;;
368				datarootdir=?*) DATAROOTDIR="$LONG_OPTARG" ;;
369				datarootdir)
370					if [ "$#" -lt 2 ]; then
371						usage "No argument given for '--$arg' option"
372					fi
373					DATAROOTDIR="$2"
374					shift ;;
375				datadir=?*) DATADIR="$LONG_OPTARG" ;;
376				datadir)
377					if [ "$#" -lt 2 ]; then
378						usage "No argument given for '--$arg' option"
379					fi
380					DATADIR="$2"
381					shift ;;
382				mandir=?*) MANDIR="$LONG_OPTARG" ;;
383				mandir)
384					if [ "$#" -lt 2 ]; then
385						usage "No argument given for '--$arg' option"
386					fi
387					MANDIR="$2"
388					shift ;;
389				man1dir=?*) MAN1DIR="$LONG_OPTARG" ;;
390				man1dir)
391					if [ "$#" -lt 2 ]; then
392						usage "No argument given for '--$arg' option"
393					fi
394					MAN1DIR="$2"
395					shift ;;
396				localedir=?*) LOCALEDIR="$LONG_OPTARG" ;;
397				localedir)
398					if [ "$#" -lt 2 ]; then
399						usage "No argument given for '--$arg' option"
400					fi
401					LOCALEDIR="$2"
402					shift ;;
403				karatsuba-len=?*) karatsuba_len="$LONG_OPTARG" ;;
404				karatsuba-len)
405					if [ "$#" -lt 2 ]; then
406						usage "No argument given for '--$arg' option"
407					fi
408					karatsuba_len="$1"
409					shift ;;
410				opt=?*) optimization="$LONG_OPTARG" ;;
411				opt)
412					if [ "$#" -lt 2 ]; then
413						usage "No argument given for '--$arg' option"
414					fi
415					optimization="$1"
416					shift ;;
417				disable-bc) dc_only=1 ;;
418				disable-dc) bc_only=1 ;;
419				disable-extra-math) extra_math=0 ;;
420				disable-generated-tests) generate_tests=0 ;;
421				disable-history) hist=0 ;;
422				disable-man-pages) install_manpages=0 ;;
423				disable-nls) nls=0 ;;
424				disable-prompt) prompt=0 ;;
425				disable-strip) strip_bin=0 ;;
426				help* | bc-only* | dc-only* | coverage* | debug*)
427					usage "No arg allowed for --$arg option" ;;
428				disable-bc* | disable-dc* | disable-extra-math*)
429					usage "No arg allowed for --$arg option" ;;
430				disable-generated-tests* | disable-history*)
431					usage "No arg allowed for --$arg option" ;;
432				disable-man-pages* | disable-nls* | disable-strip*)
433					usage "No arg allowed for --$arg option" ;;
434				'') break ;; # "--" terminates argument processing
435				* ) usage "Invalid option $LONG_OPTARG" ;;
436			esac
437			shift
438			OPTIND=1 ;;
439		?) usage "Invalid option $opt" ;;
440	esac
441
442done
443
444if [ "$bc_only" -eq 1 ] && [ "$dc_only" -eq 1 ]; then
445	usage "Can only specify one of -b(-D) or -d(-B)"
446fi
447
448case $karatsuba_len in
449	(*[!0-9]*|'') usage "KARATSUBA_LEN is not a number" ;;
450	(*) ;;
451esac
452
453if [ "$karatsuba_len" -lt 16 ]; then
454	usage "KARATSUBA_LEN is less than 16"
455fi
456
457set -e
458
459if [ -z "${LONG_BIT+set}" ]; then
460	LONG_BIT_DEFINE=""
461elif [ "$LONG_BIT" -lt 32 ]; then
462	usage "LONG_BIT is less than 32"
463else
464	LONG_BIT_DEFINE="-DBC_LONG_BIT=\$(BC_LONG_BIT)"
465fi
466
467if [ -z "$CC" ]; then
468	CC="c99"
469else
470	ccbase=$(basename "$CC")
471	suffix=" *"
472	prefix="* "
473
474	if [ "${ccbase%%$suffix}" != "$ccbase" ]; then
475		ccflags="${ccbase#$prefix}"
476		cc="${ccbase%%$suffix}"
477		ccdir=$(dirname "$CC")
478		if [ "$ccdir" = "." ] && [ "${CC#.}" = "$CC" ]; then
479			ccdir=""
480		else
481			ccdir="$ccdir/"
482		fi
483		CC="${ccdir}${cc}"
484		CFLAGS="$CFLAGS $ccflags"
485	fi
486fi
487
488if [ -z "$HOSTCC" ] && [ -z "$HOST_CC" ]; then
489	HOSTCC="$CC"
490elif [ -z "$HOSTCC" ]; then
491	HOSTCC="$HOST_CC"
492fi
493
494if [ "$HOSTCC" != "$CC" ]; then
495	ccbase=$(basename "$HOSTCC")
496	suffix=" *"
497	prefix="* "
498
499	if [ "${ccbase%%$suffix}" != "$ccbase" ]; then
500		ccflags="${ccbase#$prefix}"
501		cc="${ccbase%%$suffix}"
502		ccdir=$(dirname "$HOSTCC")
503		if [ "$ccdir" = "." ] && [ "${HOSTCC#.}" = "$HOSTCC" ]; then
504			ccdir=""
505		else
506			ccdir="$ccdir/"
507		fi
508		HOSTCC="${ccdir}${cc}"
509		HOSTCFLAGS="$HOSTCFLAGS $ccflags"
510	fi
511fi
512
513if [ -z "${HOSTCFLAGS+set}" ] && [ -z "${HOST_CFLAGS+set}" ]; then
514	HOSTCFLAGS="$CFLAGS"
515elif [ -z "${HOSTCFLAGS+set}" ]; then
516	HOSTCFLAGS="$HOST_CFLAGS"
517fi
518
519link="@printf 'No link necessary\\\\n'"
520main_exec="BC"
521executable="BC_EXEC"
522
523bc_test="@tests/all.sh bc $extra_math 1 $generate_tests 0 \$(BC_EXEC)"
524bc_time_test="@tests/all.sh bc $extra_math 1 $generate_tests 1 \$(BC_EXEC)"
525
526dc_test="@tests/all.sh dc $extra_math 1 $generate_tests 0 \$(DC_EXEC)"
527dc_time_test="@tests/all.sh dc $extra_math 1 $generate_tests 1 \$(DC_EXEC)"
528
529timeconst="@tests/bc/timeconst.sh tests/bc/scripts/timeconst.bc \$(BC_EXEC)"
530
531# In order to have cleanup at exit, we need to be in
532# debug mode, so don't run valgrind without that.
533if [ "$debug" -ne 0 ]; then
534	vg_bc_test="@tests/all.sh bc $extra_math 1 $generate_tests 0 valgrind \$(VALGRIND_ARGS) \$(BC_EXEC)"
535	vg_dc_test="@tests/all.sh dc $extra_math 1 $generate_tests 0 valgrind \$(VALGRIND_ARGS) \$(DC_EXEC)"
536else
537	vg_bc_test="@printf 'Cannot run valgrind without debug flags\\\\n'"
538	vg_dc_test="@printf 'Cannot run valgrind without debug flags\\\\n'"
539fi
540
541karatsuba="@printf 'karatsuba cannot be run because one of bc or dc is not built\\\\n'"
542karatsuba_test="@printf 'karatsuba cannot be run because one of bc or dc is not built\\\\n'"
543
544bc_lib="\$(GEN_DIR)/lib.o"
545bc_help="\$(GEN_DIR)/bc_help.o"
546dc_help="\$(GEN_DIR)/dc_help.o"
547
548if [ "$bc_only" -eq 1 ]; then
549
550	bc=1
551	dc=0
552
553	dc_help=""
554
555	executables="bc"
556
557	dc_test="@printf 'No dc tests to run\\\\n'"
558	dc_time_test="@printf 'No dc tests to run\\\\n'"
559	vg_dc_test="@printf 'No dc tests to run\\\\n'"
560
561	install_prereqs=" install_bc_manpage"
562	uninstall_prereqs=" uninstall_bc"
563	uninstall_man_prereqs=" uninstall_bc_manpage"
564
565elif [ "$dc_only" -eq 1 ]; then
566
567	bc=0
568	dc=1
569
570	bc_lib=""
571	bc_help=""
572
573	executables="dc"
574
575	main_exec="DC"
576	executable="DC_EXEC"
577
578	bc_test="@printf 'No bc tests to run\\\\n'"
579	bc_time_test="@printf 'No bc tests to run\\\\n'"
580	vg_bc_test="@printf 'No bc tests to run\\\\n'"
581
582	timeconst="@printf 'timeconst cannot be run because bc is not built\\\\n'"
583
584	install_prereqs=" install_dc_manpage"
585	uninstall_prereqs=" uninstall_dc"
586	uninstall_man_prereqs=" uninstall_dc_manpage"
587
588else
589
590	bc=1
591	dc=1
592
593	executables="bc and dc"
594
595	link="\$(LINK) \$(BIN) \$(EXEC_PREFIX)\$(DC)"
596
597	karatsuba="@\$(KARATSUBA) 30 0 \$(BC_EXEC)"
598	karatsuba_test="@\$(KARATSUBA) 1 100 \$(BC_EXEC)"
599
600	install_prereqs=" install_bc_manpage install_dc_manpage"
601	uninstall_prereqs=" uninstall_bc uninstall_dc"
602	uninstall_man_prereqs=" uninstall_bc_manpage uninstall_dc_manpage"
603
604fi
605
606if [ "$debug" -eq 1 ]; then
607
608	if [ -z "$CFLAGS" ] && [ -z "$optimization" ]; then
609		CFLAGS="-O0"
610	fi
611
612	CFLAGS="-g $CFLAGS"
613
614else
615	CPPFLAGS="-DNDEBUG $CPPFLAGS"
616	if [ "$strip_bin" -ne 0 ]; then
617		LDFLAGS="-s $LDFLAGS"
618	fi
619fi
620
621if [ -n "$optimization" ]; then
622	CFLAGS="-O$optimization $CFLAGS"
623fi
624
625if [ "$coverage" -eq 1 ]; then
626
627	if [ "$bc_only" -eq 1 ] || [ "$dc_only" -eq 1 ]; then
628		usage "Can only specify -c without -b or -d"
629	fi
630
631	CFLAGS="-fprofile-arcs -ftest-coverage -g -O0 $CFLAGS"
632	CPPFLAGS="-DNDEBUG $CPPFLAGS"
633
634	COVERAGE_OUTPUT="@gcov -pabcdf \$(GCDA) \$(BC_GCDA) \$(DC_GCDA) \$(HISTORY_GCDA) \$(RAND_GCDA)"
635	COVERAGE_OUTPUT="$COVERAGE_OUTPUT;\$(RM) -f \$(GEN)*.gc*"
636	COVERAGE_OUTPUT="$COVERAGE_OUTPUT;gcovr --html-details --output index.html"
637	COVERAGE_PREREQS=" test coverage_output"
638
639else
640	COVERAGE_OUTPUT="@printf 'Coverage not generated\\\\n'"
641	COVERAGE_PREREQS=""
642fi
643
644if [ -z "${DESTDIR+set}" ]; then
645	destdir=""
646else
647	destdir="DESTDIR = $DESTDIR"
648fi
649
650if [ -z "${PREFIX+set}" ]; then
651	PREFIX="/usr/local"
652fi
653
654if [ -z "${BINDIR+set}" ]; then
655	BINDIR="$PREFIX/bin"
656fi
657
658if [ "$install_manpages" -ne 0 ] || [ "$nls" -ne 0 ]; then
659	if [ -z "${DATAROOTDIR+set}" ]; then
660		DATAROOTDIR="$PREFIX/share"
661	fi
662fi
663
664if [ "$install_manpages" -ne 0 ]; then
665
666	if [ -z "${DATADIR+set}" ]; then
667		DATADIR="$DATAROOTDIR"
668	fi
669
670	if [ -z "${MANDIR+set}" ]; then
671		MANDIR="$DATADIR/man"
672	fi
673
674	if [ -z "${MAN1DIR+set}" ]; then
675		MAN1DIR="$MANDIR/man1"
676	fi
677
678else
679	install_prereqs=""
680	uninstall_man_prereqs=""
681fi
682
683if [ "$nls" -ne 0 ]; then
684
685	set +e
686
687	printf 'Testing NLS...\n'
688
689	flags="-DBC_ENABLE_NLS=1 -DBC_ENABLED=$bc -DDC_ENABLED=$dc"
690	flags="$flags -DBC_ENABLE_HISTORY=$hist"
691	flags="$flags -DBC_ENABLE_EXTRA_MATH=$extra_math -I./include/"
692	flags="$flags -D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=700"
693
694	"$CC" $CPPFLAGS $CFLAGS $flags -c "src/vm.c" -o "$scriptdir/vm.o" > /dev/null 2>&1
695
696	err="$?"
697
698	rm -rf "$scriptdir/vm.o"
699
700	# If this errors, it is probably because of building on Windows,
701	# and NLS is not supported on Windows, so disable it.
702	if [ "$err" -ne 0 ]; then
703		printf 'NLS does not work.\n'
704		if [ $force -eq 0 ]; then
705			printf 'Disabling NLS...\n\n'
706			nls=0
707		else
708			printf 'Forcing NLS...\n\n'
709		fi
710	else
711		printf 'NLS works.\n\n'
712
713		printf 'Testing gencat...\n'
714		gencat "$scriptdir/en_US.cat" "$scriptdir/locales/en_US.msg" > /dev/null 2>&1
715
716		err="$?"
717
718		rm -rf "$scriptdir/en_US.cat"
719
720		if [ "$err" -ne 0 ]; then
721			printf 'gencat does not work.\n'
722			if [ $force -eq 0 ]; then
723				printf 'Disabling NLS...\n\n'
724				nls=0
725			else
726				printf 'Forcing NLS...\n\n'
727			fi
728		else
729
730			printf 'gencat works.\n\n'
731
732			if [ "$HOSTCC" != "$CC" ]; then
733				printf 'Cross-compile detected.\n\n'
734				printf 'WARNING: Catalog files generated with gencat may not be portable\n'
735				printf '         across different architectures.\n\n'
736			fi
737
738			if [ -z "$NLSPATH" ]; then
739				NLSPATH="/usr/share/locale/%L/%N"
740			fi
741
742			install_locales_prereqs=" install_locales"
743			uninstall_locales_prereqs=" uninstall_locales"
744
745		fi
746
747	fi
748
749	set -e
750
751else
752	install_locales_prereqs=""
753	uninstall_locales_prereqs=""
754fi
755
756if [ "$hist" -eq 1 ]; then
757
758	set +e
759
760	printf 'Testing history...\n'
761
762	flags="-DBC_ENABLE_HISTORY=1 -DBC_ENABLED=$bc -DDC_ENABLED=$dc"
763	flags="$flags -DBC_ENABLE_NLS=$nls"
764	flags="$flags -DBC_ENABLE_EXTRA_MATH=$extra_math -I./include/"
765	flags="$flags -D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=700"
766
767	"$CC" $CPPFLAGS $CFLAGS $flags -c "src/history/history.c" -o "$scriptdir/history.o" > /dev/null 2>&1
768
769	err="$?"
770
771	rm -rf "$scriptdir/history.o"
772
773	# If this errors, it is probably because of building on Windows,
774	# and history is not supported on Windows, so disable it.
775	if [ "$err" -ne 0 ]; then
776		printf 'History does not work.\n'
777		if [ $force -eq 0 ]; then
778			printf 'Disabling history...\n\n'
779			hist=0
780		else
781			printf 'Forcing history...\n\n'
782		fi
783	else
784		printf 'History works.\n\n'
785	fi
786
787	set -e
788
789fi
790
791if [ "$extra_math" -eq 1 ] && [ "$bc" -ne 0 ]; then
792	BC_LIB2_O="\$(GEN_DIR)/lib2.o"
793else
794	BC_LIB2_O=""
795fi
796
797GEN="strgen"
798GEN_EXEC_TARGET="\$(HOSTCC) \$(HOSTCFLAGS) -o \$(GEN_EXEC) \$(GEN_C)"
799CLEAN_PREREQS=" clean_gen"
800
801if [ -z "${GEN_HOST+set}" ]; then
802	GEN_HOST=1
803else
804	if [ "$GEN_HOST" -eq 0 ]; then
805		GEN="strgen.sh"
806		GEN_EXEC_TARGET="@printf 'Do not need to build gen/strgen.c\\\\n'"
807		CLEAN_PREREQS=""
808	fi
809fi
810
811manpage_args=""
812
813if [ "$extra_math" -eq 0 ]; then
814	manpage_args="E"
815fi
816
817if [ "$hist" -eq 0 ]; then
818	manpage_args="${manpage_args}H"
819fi
820
821if [ "$nls" -eq 0 ]; then
822	manpage_args="${manpage_args}N"
823fi
824
825if [ "$prompt" -eq 0 ]; then
826	manpage_args="${manpage_args}P"
827fi
828
829if [ "$manpage_args" = "" ]; then
830	manpage_args="A"
831fi
832
833# Print out the values; this is for debugging.
834if [ "$bc" -ne 0 ]; then
835	printf 'Building bc\n'
836else
837	printf 'Not building bc\n'
838fi
839if [ "$dc" -ne 0 ]; then
840	printf 'Building dc\n'
841else
842	printf 'Not building dc\n'
843fi
844printf '\n'
845printf 'BC_ENABLE_HISTORY=%s\n' "$hist"
846printf 'BC_ENABLE_EXTRA_MATH=%s\n' "$extra_math"
847printf 'BC_ENABLE_NLS=%s\n' "$nls"
848printf 'BC_ENABLE_PROMPT=%s\n' "$prompt"
849printf '\n'
850printf 'BC_NUM_KARATSUBA_LEN=%s\n' "$karatsuba_len"
851printf '\n'
852printf 'CC=%s\n' "$CC"
853printf 'CFLAGS=%s\n' "$CFLAGS"
854printf 'HOSTCC=%s\n' "$HOSTCC"
855printf 'HOSTCFLAGS=%s\n' "$HOSTCFLAGS"
856printf 'CPPFLAGS=%s\n' "$CPPFLAGS"
857printf 'LDFLAGS=%s\n' "$LDFLAGS"
858printf 'PREFIX=%s\n' "$PREFIX"
859printf 'BINDIR=%s\n' "$BINDIR"
860printf 'DATAROOTDIR=%s\n' "$DATAROOTDIR"
861printf 'DATADIR=%s\n' "$DATADIR"
862printf 'MANDIR=%s\n' "$MANDIR"
863printf 'MAN1DIR=%s\n' "$MAN1DIR"
864printf 'NLSPATH=%s\n' "$NLSPATH"
865printf 'EXECSUFFIX=%s\n' "$EXECSUFFIX"
866printf 'EXECPREFIX=%s\n' "$EXECPREFIX"
867printf 'DESTDIR=%s\n' "$DESTDIR"
868printf 'LONG_BIT=%s\n' "$LONG_BIT"
869printf 'GEN_HOST=%s\n' "$GEN_HOST"
870printf 'GEN_EMU=%s\n' "$GEN_EMU"
871
872contents=$(cat "$scriptdir/Makefile.in")
873
874needle="WARNING"
875replacement='*** WARNING: Autogenerated from Makefile.in. DO NOT MODIFY ***'
876
877contents=$(replace "$contents" "$needle" "$replacement")
878
879contents=$(gen_file_lists "$contents" "$scriptdir/src" "")
880contents=$(gen_file_lists "$contents" "$scriptdir/src/bc" "BC_" "$bc")
881contents=$(gen_file_lists "$contents" "$scriptdir/src/dc" "DC_" "$dc")
882contents=$(gen_file_lists "$contents" "$scriptdir/src/history" "HISTORY_" "$hist")
883contents=$(gen_file_lists "$contents" "$scriptdir/src/rand" "RAND_" "$extra_math")
884
885contents=$(replace "$contents" "BC_ENABLED" "$bc")
886contents=$(replace "$contents" "DC_ENABLED" "$dc")
887contents=$(replace "$contents" "LINK" "$link")
888
889contents=$(replace "$contents" "HISTORY" "$hist")
890contents=$(replace "$contents" "EXTRA_MATH" "$extra_math")
891contents=$(replace "$contents" "NLS" "$nls")
892contents=$(replace "$contents" "PROMPT" "$prompt")
893contents=$(replace "$contents" "BC_LIB_O" "$bc_lib")
894contents=$(replace "$contents" "BC_HELP_O" "$bc_help")
895contents=$(replace "$contents" "DC_HELP_O" "$dc_help")
896contents=$(replace "$contents" "BC_LIB2_O" "$BC_LIB2_O")
897contents=$(replace "$contents" "KARATSUBA_LEN" "$karatsuba_len")
898
899contents=$(replace "$contents" "NLSPATH" "$NLSPATH")
900contents=$(replace "$contents" "DESTDIR" "$destdir")
901contents=$(replace "$contents" "EXECSUFFIX" "$EXECSUFFIX")
902contents=$(replace "$contents" "EXECPREFIX" "$EXECPREFIX")
903contents=$(replace "$contents" "BINDIR" "$BINDIR")
904contents=$(replace "$contents" "MAN1DIR" "$MAN1DIR")
905contents=$(replace "$contents" "CFLAGS" "$CFLAGS")
906contents=$(replace "$contents" "HOSTCFLAGS" "$HOSTCFLAGS")
907contents=$(replace "$contents" "CPPFLAGS" "$CPPFLAGS")
908contents=$(replace "$contents" "LDFLAGS" "$LDFLAGS")
909contents=$(replace "$contents" "CC" "$CC")
910contents=$(replace "$contents" "HOSTCC" "$HOSTCC")
911contents=$(replace "$contents" "COVERAGE_OUTPUT" "$COVERAGE_OUTPUT")
912contents=$(replace "$contents" "COVERAGE_PREREQS" "$COVERAGE_PREREQS")
913contents=$(replace "$contents" "INSTALL_PREREQS" "$install_prereqs")
914contents=$(replace "$contents" "INSTALL_LOCALES_PREREQS" "$install_locales_prereqs")
915contents=$(replace "$contents" "UNINSTALL_MAN_PREREQS" "$uninstall_man_prereqs")
916contents=$(replace "$contents" "UNINSTALL_PREREQS" "$uninstall_prereqs")
917contents=$(replace "$contents" "UNINSTALL_LOCALES_PREREQS" "$uninstall_locales_prereqs")
918
919contents=$(replace "$contents" "EXECUTABLES" "$executables")
920contents=$(replace "$contents" "MAIN_EXEC" "$main_exec")
921contents=$(replace "$contents" "EXEC" "$executable")
922
923contents=$(replace "$contents" "BC_TEST" "$bc_test")
924contents=$(replace "$contents" "BC_TIME_TEST" "$bc_time_test")
925
926contents=$(replace "$contents" "DC_TEST" "$dc_test")
927contents=$(replace "$contents" "DC_TIME_TEST" "$dc_time_test")
928
929contents=$(replace "$contents" "VG_BC_TEST" "$vg_bc_test")
930contents=$(replace "$contents" "VG_DC_TEST" "$vg_dc_test")
931
932contents=$(replace "$contents" "TIMECONST" "$timeconst")
933
934contents=$(replace "$contents" "KARATSUBA" "$karatsuba")
935contents=$(replace "$contents" "KARATSUBA_TEST" "$karatsuba_test")
936
937contents=$(replace "$contents" "LONG_BIT" "$LONG_BIT")
938contents=$(replace "$contents" "LONG_BIT_DEFINE" "$LONG_BIT_DEFINE")
939
940contents=$(replace "$contents" "GEN" "$GEN")
941contents=$(replace "$contents" "GEN_EXEC_TARGET" "$GEN_EXEC_TARGET")
942contents=$(replace "$contents" "CLEAN_PREREQS" "$CLEAN_PREREQS")
943contents=$(replace "$contents" "GEN_EMU" "$GEN_EMU")
944
945printf '%s\n' "$contents" > "$scriptdir/Makefile"
946
947cd "$scriptdir"
948
949cp -f manuals/bc/$manpage_args.1.md manuals/bc.1.md
950cp -f manuals/bc/$manpage_args.1 manuals/bc.1
951cp -f manuals/dc/$manpage_args.1.md manuals/dc.1.md
952cp -f manuals/dc/$manpage_args.1 manuals/dc.1
953
954make clean > /dev/null
955