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Date:: Sun Sep 25 22:13:15 2022 UTC
Message:: portable
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1 #!/bin/sh
2 #
3 # Copyright (c) 2014, 2015, 2016 Ingo Schwarze <schwarze@openbsd.org>
4 # Copyright (c) 2017, 2018 Kristaps Dzonsons <kristaps@bsd.lv>
5 # Copyright (c) 2022 Omar Polo <op@omarpolo.com>
6 #
7 # Permission to use, copy, modify, and distribute this software for any
8 # purpose with or without fee is hereby granted, provided that the above
9 # copyright notice and this permission notice appear in all copies.
10 #
11 # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 
19 set -e
20 
21 RELEASE="${RELEASE:-no}"
22 
23 usage()
24 {
25 	echo "usage: $0 [--help] [--prefix=prefix] [OPTION=VALUE...]" >&2
26 	exit 1
27 }
28 
29 if command -v yacc 2>/dev/null >&2; then
30 	YACC=yacc
31 elif command -v bison 2>/dev/null >&2; then
32 	YACC=bison
33 else
34 	# assume yacc by default.  Make will fail building parse.y if
35 	# not from a release tarball, but at least it'll have a decent
36 	# error message.
37 	YACC=yacc
38 fi
39 
40 if command -v pkg-config 2>/dev/null >&2; then
41 	pkgconfig=pkg-config
42 else
43 	pkgconfig=
44 fi
45 
46 conf=
47 user=
48 sock=
49 while [ $# -gt 0 ]; do
50 	key="${1%%=*}"
51 	val="${1#*=}"
52 
53 	if [ "$key" = --help ]; then
54 		usage
55 	fi
56 
57 	if [ "$key" = --prefix ]; then
58 		key=PREFIX
59 		if [ "$1" = --prefix ]; then # no =, look at next arg
60 			if !shift 2>&1 >/dev/null; then
61 				echo "$0: missing value for --prefix" >&2
62 				exit 1
63 			fi
64 			val="$1"
65 		fi
66 	fi
67 
68 	if [ "$1" = "$key" ]; then
69 		echo "$0: invalid key-value: $1" >&2
70 		exit 1
71 	fi
72 
73 	case "$key" in
74 	CC)
75 		CC="$val" ;;
76 	CFLAGS)
77 		CFLAGS="$val" ;;
78 	CONF)
79 		conf="$val" ;;
80 	LDADD)
81 		LDADD="$val" ;;
82 	LDADD_IMSG)
83 		LDADD_IMSG="$val" ;;
84 	LDADD_LIBEVENT)
85 		LDADD_LIBEVENT="$val" ;;
86 	LDADD_LIBSOCKET)
87 		LDADD_LIBSOCKET="$val" ;;
88 	PKG_CONFIG)
89 		pkgconfig="$val" ;;
90 	SOCK)
91 		sock="$sock" ;;
92 	USER)
93 		user="$val" ;;
94 	YACC)
95 		YACC="$val" ;;
96 	esac
97 
98 	shift
99 done
100 
101 CDIAGFLAGS=
102 CDIAGFLAGS="${CDIAGFLAGS} -Wall -Wextra -Wpointer-arith -Wuninitialized"
103 CDIAGFLAGS="${CDIAGFLAGS} -Wstrict-prototypes -Wmissing-prototypes -Wunused"
104 CDIAGFLAGS="${CDIAGFLAGS} -Wsign-compare -Wshadow -Wno-unused-parameter"
105 CDIAGFLAGS="${CDIAGFLAGS} -Wno-missing-field-initializers"
106 CDIAGFLAGS="${CDIAGFLAGS} -Wno-pointer-sign"
107 
108 # don't ship releases with -Werror
109 test "$RELEASE" = no && CDIAGFLAGS="${CDIAGFLAGS} -Werror"
110 
111 CFLAGS="${CFLAGS:--O2 -pipe} ${CDIAGFLAGS}"
112 CC="${CC:-cc}"
113 LIBS="${LIBS:-}"
114 LDFLAGS="${LDFLAGS:-}"
115 
116 HOSTCC="${HOSTCC:-${CC}}"
117 HOSTCFLAGS="${HOSTCFLAGS:-${CFLAGS}}"
118 
119 echo "running configure for \`template':" >&2
120 (cd ./template && ./configure CC="$HOSTCC" CFLAGS="$HOSTCFLAGS" YACC="$YACC")
121 echo "returning to the configure for \`galileo':" >&2
122 
123 CFLAGS="${CFLAGS} -I. -Itemplate"
124 test -n "$conf" && CFLAGS="${CFLAGS} -DGALILEO_CONF=\"$conf\""
125 test -n "$user" && CFLAGS="${CFLAGS} -DGALILEO_USER=\"$user\""
126 test -n "$sock" && CFLAGS="${CFLAGS} -DGALILEO_SOCK=\"$conf\""
127 
128 [ -w config.log ] && mv config.log config.log.old
129 
130 exec 3> config.log
131 echo "config.log: writing..."
132 
133 COMPATS=
134 
135 HAVE_ACCEPT4=
136 HAVE_ASR_RUN=
137 HAVE_BUFFEREVENT_READ_PRESSURE_CB=
138 HAVE_ERR=
139 HAVE_EVENT_ASR_RUN=
140 HAVE_FREEZERO=
141 HAVE_GETDTABLECOUNT=
142 HAVE_GETDTABLESIZE=
143 HAVE_GETEXECNAME=
144 HAVE_GETPROGNAME=
145 HAVE_IMSG=
146 HAVE_LIBEVENT=
147 HAVE_LIBEVENT2=
148 HAVE_PLEDGE=
149 HAVE_REALLOCARRAY=
150 HAVE_RECALLOCARRAY=
151 HAVE_SETGROUPS=
152 HAVE_SETPROCTITLE=
153 HAVE_STRLCAT=
154 HAVE_STRLCPY=
155 HAVE_STRTONUM=
156 HAVE_SYS_QUEUE=
157 HAVE_SYS_TREE=
158 HAVE_UNVEIL=
159 HAVE_VASPRINTF=
160 HAVE___PROGNAME=
161 
162 # singletest name var extra-cflags extra-libs msg
163 singletest() {
164 	msg="$5"
165 	if [ -z "$msg" ]; then
166 		if [ -n "$3" ]; then
167 			msg=" ($3)"
168 		elif [ -n "$4" ]; then
169 			msg=" ($4)"
170 		fi
171 	elif [ "$msg" = no ]; then
172 	     msg=""
173 	fi
174 
175 	cat >&3 <<EOF
176 ${1}: testing...
177 $CC tests/${1}.c -Werror $3 -o test-$1 $LDFLAGS $4
178 EOF
179 	if $CC tests/${1}.c -Werror $3 -o test-$1 $LDFLAGS $4 >&3 2>&3; then
180 		rm -f test-${1} test-${1}.d
181 
182 		echo "${1}: $CC$msg succeeded" >&3
183 		echo "${1}$msg: yes"
184 		echo >&3
185 
186 		return 0
187 	fi
188 
189 	echo "${1}: $CC$msg failed with $?" >&3
190 	echo "${1}$msg: no"
191 	echo >&3
192 
193 	return 1
194 }
195 
196 # deptest name var
197 deptest() {
198 	if singletest "$1" "$2" "${CFLAGS}" "${LIBS}" no; then
199 		eval HAVE_${2}=1
200 		return 0
201 	fi
202 
203 	if [ -f compat/${1}.c ]; then
204 		COMPATS="compat/${1}.c $COMPATS"
205 	fi
206 
207 	eval HAVE_${2}=0
208 	return 1
209 }
210 
211 # runtest name var extra-cflags extra-libs pkgconfig-name
212 runtest() {
213 	if singletest "$1" "$2" "" ""; then
214 		eval HAVE_${2}=1
215 		return 0
216 	fi
217 
218 	if [ -n "$3" -o -n "$4" ]; then
219 		echo "retrying with ${3+$3 }$4" >&3
220 		if singletest "$1" "$2" "$3" "$4"; then
221 			if [ -n "$3" ]; then
222 				CFLAGS="$CFLAGS $3"
223 			fi
224 			if [ -n "${4}" ]; then
225 				LIBS="$LIBS $4"
226 			fi
227 			eval HAVE_${2}=1
228 			return 0
229 		fi
230 	fi
231 
232 	if [ -n "$5" -a -n "$pkgconfig" ]; then
233 		if $pkgconfig "$5"; then
234 			cflags="$($pkgconfig --cflags "$5")"
235 			ldflags="$($pkgconfig --libs "$5")"
236 			echo "retrying with pkg-config" >&3
237 			if singletest "$1" "$2" "$3" "$cflags" "$ldflags"; then
238 				CFLAGS="$CFLAGS $cflags"
239 				LIBS="$LIBS $ldflags"
240 				eval HAVE_${2}=1
241 				return 0
242 			fi
243 		fi
244 	fi
245 
246 	if [ -f compat/${1}.c ]; then
247 		COMPATS="compat/${1}.c $COMPATS"
248 	fi
249 
250 	eval HAVE_${2}=0
251 	return 1
252 }
253 
254 if runtest MMD _MMD -MMD >/dev/null; then
255 	echo "adding -MMD to CFLAGS" >&2
256 	echo "adding -MMD to CFLAGS" >&3
257 fi
258 
259 runtest accept4		ACCEPT4 -D_GNU_SOURCE			|| true
260 runtest asr_run		ASR_RUN "" "-lasr"			|| true
261 runtest err		ERR					|| true
262 runtest freezero	FREEZERO				|| true
263 runtest getdtablecount	GETDTABLECOUNT				|| true
264 runtest getdtablesize	GETDTABLESIZE				|| true
265 runtest getexecname	GETEXECNAME				|| true
266 runtest getprogname	GETPROGNAME				|| true
267 runtest imsg		IMSG "" "-lutil"	libimsg		|| true
268 runtest libevent	LIBEVENT "" "-levent"	libevent_core	|| true
269 runtest libtls		LIBTLS "" "-ltls"	libtls		|| true
270 runtest pledge		PLEDGE					|| true
271 runtest reallocarray	REALLOCARRAY -D_OPENBSD_SOURCE		|| true
272 runtest recallocarray	RECALLOCARRAY -D_OPENBSD_SOURCE		|| true
273 runtest setgroups	SETGROUPS -D_BSD_SOURCE			|| true
274 runtest setproctitle	SETPROCTITLE				|| true
275 runtest strlcat		STRLCAT					|| true
276 runtest strlcpy		STRLCPY					|| true
277 runtest strtonum	STRTONUM				|| true
278 runtest sys_queue	SYS_QUEUE				|| true
279 runtest sys_tree	SYS_TREE				|| true
280 runtest unveil		UNVEIL					|| true
281 runtest vasprintf	VASPRINTF -D_GNU_SOURCE			|| true
282 runtest __progname	__PROGNAME				|| true
283 
284 deptest bufferevent_read_pressure_cb BEV_READ_PRESSURE		|| true
285 deptest event_asr_run	EVENT_ASR_RUN				|| true
286 deptest libevent2	LIBEVENT2				|| true
287 
288 # mandatory things:
289 
290 if [ "${HAVE_ACCEPT4}" -eq 0 ]; then
291 	echo "Fatal: missing accept4(2)" >&2
292 	echo "Fatal: missing accept4(2)" >&3
293 	exit 1
294 fi
295 
296 if [ "${HAVE_ASR_RUN}" -eq 0 ]; then
297 	echo "Fatal: missing libasr" >&2
298 	echo "Fatal: missing libasr" >&3
299 	exit 1
300 fi
301 
302 if [ "${HAVE_LIBEVENT}" -eq 0 ]; then
303 	echo "Fatal: missing libevent" >&2
304 	echo "Fatal: missing libevent" >&3
305 	exit 1
306 fi
307 
308 if [ "${HAVE_LIBTLS}" -eq 0 ]; then
309 	echo "Fatal: missing libtls" >&2
310 	echo "Fatal: missing libtls" >&3
311 	exit 1
312 fi
313 
314 if [ "${HAVE_SETGROUPS}" -eq 0 ]; then
315 	echo "Fatal: missing setgroups(2)" >&2
316 	echo "Fatal: missing setgroups(2)" >&3
317 	exit 1
318 fi
319 
320 # things we can provide by ourselves:
321 
322 if [ "${HAVE_IMSG}" -eq 0 ]; then
323 	CFLAGS="-I compat/imsg ${CFLAGS}"
324 	COMPATS="compat/imsg/imsg.c compat/imsg/imsg-buffer.c ${COMPATS}"
325 fi
326 
327 if [ "${HAVE_SYS_QUEUE}" -eq 0 -o "${HAVE_SYS_TREE}" -eq 0 ]; then
328 	CFLAGS="-I compat/sys ${CFLAGS}"
329 fi
330 
331 if [ -n "${COMPATS}" ]; then
332 	CFLAGS="-I compat/ ${CFLAGS}"
333 fi
334 
335 exec > config.h
336 echo "config.h: writing..." >&2
337 
338 cat <<EOF
339 #ifndef CONFIG_H
340 #define CONFIG_H
341 
342 #ifdef __cplusplus
343 # error "Do not use C++: this is a C application."
344 #endif
345 
346 #define HAVE_ACCEPT4		${HAVE_ACCEPT4}
347 #define HAVE_ASR_RUN		${HAVE_ASR_RUN}
348 #define HAVE_BUFFEREVENT_READ_PRESSURE_CB ${HAVE_BUFFEREVENT_READ_PRESSURE_CB}
349 #define HAVE_ERR		${HAVE_ERR}
350 #define HAVE_EVENT_ASR_RUN	${HAVE_EVENT_ASR_RUN}
351 #define HAVE_FREEZERO		${HAVE_FREEZERO}
352 #define HAVE_GETDTABLECOUNT	${HAVE_GETDTABLECOUNT}
353 #define HAVE_GETDTABLESIZE	${HAVE_GETDTABLESIZE}
354 #define HAVE_GETEXECNAME	${HAVE_GETEXECNAME}
355 #define HAVE_GETPROGNAME	${HAVE_GETPROGNAME}
356 #define HAVE_IMSG		${HAVE_IMSG}
357 #define HAVE_LIBEVENT		${HAVE_LIBEVENT}
358 #define HAVE_LIBEVENT2		${HAVE_LIBEVENT2}
359 #define HAVE_PLEDGE		${HAVE_PLEDGE}
360 #define HAVE_REALLOCARRAY	${HAVE_REALLOCARRAY}
361 #define HAVE_RECALLOCARRAY	${HAVE_RECALLOCARRAY}
362 #define HAVE_SETGROUPS		${HAVE_SETGROUPS}
363 #define HAVE_SETPROCTITLE	${HAVE_SETPROCTITLE}
364 #define HAVE_STRLCAT		${HAVE_STRLCAT}
365 #define HAVE_STRLCPY		${HAVE_STRLCPY}
366 #define HAVE_STRTONUM		${HAVE_STRTONUM}
367 #define HAVE_SYS_QUEUE		${HAVE_SYS_QUEUE}
368 #define HAVE_SYS_TREE		${HAVE_SYS_TREE}
369 #define HAVE_UNVEIL		${HAVE_UNVEIL}
370 #define HAVE_VASPRINTF		${HAVE_VASPRINTF}
371 #define HAVE___PROGNAME		${HAVE___PROGNAME}
372 
373 #endif
374 EOF
375 
376 exec > config.mk
377 echo "config.mk: writing..." >&2
378 
379 cat <<EOF
380 CC=		${CC}
381 CFLAGS=		${CFLAGS}
382 LIBS=		${LIBS}
383 LDFLAGS=	${LDFLAGS}
384 YACC=		${YACC}
385 
386 COMPATS=	${COMPATS}
387 
388 INSTALL=	install
389 INSTALL_PROGRAM=\${INSTALL} -m 0555
390 INSTALL_LIB=	\${INSTALL} -m 0444
391 INSTALL_MAN=	\${INSTALL} -m 0444
392 INSTALL_DATA=	\${INSTALL} -m 0444
393 
394 EOF
395 
396 echo "done!" >&2
397 
398 echo >&2
399 echo "Now run \`make' to compile." >&2
400 echo >&2